From fd61616c03682e1aaf07b9a981200cae227e7fb1 Mon Sep 17 00:00:00 2001 From: Dylan Knutson Date: Mon, 21 Jul 2025 21:19:28 +0000 Subject: [PATCH] remove xdiff/diffy/rb-bsdiff --- .devcontainer/Dockerfile.devcontainer | 34 +- .gitignore | 3 - Dockerfile | 23 - Gemfile | 6 - Gemfile.lock | 14 - gems/rb-bsdiff/Gemfile | 5 - gems/rb-bsdiff/Gemfile.lock | 24 - gems/rb-bsdiff/LICENSE | 27 - gems/rb-bsdiff/README | 6 - gems/rb-bsdiff/Rakefile | 25 - gems/rb-bsdiff/ext/b0 | Bin 12260 -> 0 bytes gems/rb-bsdiff/ext/b1 | Bin 12488 -> 0 bytes gems/rb-bsdiff/ext/bsdiff.c | 417 ------- gems/rb-bsdiff/ext/bsdiff.h | 6 - gems/rb-bsdiff/ext/bspatch.c | 203 --- gems/rb-bsdiff/ext/bspatch.h | 6 - gems/rb-bsdiff/ext/extconf.rb | 10 - gems/rb-bsdiff/ext/rb_bsdiff.c | 30 - gems/rb-bsdiff/rb-bsdiff.gemspec | 33 - gems/rb-bsdiff/test.rb | 34 - gems/xdiff-rb/Gemfile | 5 - gems/xdiff-rb/Gemfile.lock | 26 - gems/xdiff-rb/Rakefile | 34 - gems/xdiff-rb/ext/xdiff/extconf.rb | 55 - gems/xdiff-rb/ext/xdiff/extension.cc | 188 --- gems/xdiff-rb/ext/xdiff/xdiff.tar.gz | Bin 88964 -> 0 bytes gems/xdiff-rb/ext/xdiff/xdiff/AUTHORS | 2 - gems/xdiff-rb/ext/xdiff/xdiff/CMakeLists.txt | 122 -- gems/xdiff-rb/ext/xdiff/xdiff/COPYING | 504 -------- gems/xdiff-rb/ext/xdiff/xdiff/ChangeLog | 5 - gems/xdiff-rb/ext/xdiff/xdiff/README | 34 - gems/xdiff-rb/ext/xdiff/xdiff/config.h.in | 34 - .../ext/xdiff/xdiff/man/xdiff-lib.html | 105 -- gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.3 | 871 ------------- gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.html | 1109 ----------------- gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.pdf | Bin 26597 -> 0 bytes gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.txt | 611 --------- .../ext/xdiff/xdiff/test/xdiff_test.c | 202 --- .../ext/xdiff/xdiff/test/xregression.c | 132 -- .../ext/xdiff/xdiff/test/xtestutils.c | 631 ---------- .../ext/xdiff/xdiff/test/xtestutils.h | 57 - gems/xdiff-rb/ext/xdiff/xdiff/tools/xrabin.c | 296 ----- .../xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.c | 70 -- .../xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.h | 34 - gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xalloc.c | 51 - gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.c | 315 ----- gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.h | 40 - .../xdiff-rb/ext/xdiff/xdiff/xdiff/xbpatchi.c | 336 ----- gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiff.h | 144 --- gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.c | 556 --------- gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.h | 60 - gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.c | 132 -- gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.h | 34 - .../xdiff-rb/ext/xdiff/xdiff/xdiff/xinclude.h | 71 -- gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmacros.h | 51 - gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmerge3.c | 66 - .../xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.c | 92 -- .../xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.h | 56 - gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xpatchi.c | 641 ---------- .../xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.c | 456 ------- .../xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.h | 35 - .../xdiff-rb/ext/xdiff/xdiff/xdiff/xrabdiff.c | 381 ------ gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabply.c | 298 ----- gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xtypes.h | 68 - gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.c | 580 --------- gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.h | 47 - .../xdiff-rb/ext/xdiff/xdiff/xdiff/xversion.c | 27 - gems/xdiff-rb/lib/xdiff.rb | 28 - gems/xdiff-rb/test/xdiff_test.rb | 33 - gems/xdiff-rb/xdiff.gemspec | 23 - sorbet/rbi/gems/diffy@3.4.3.rbi | 184 --- sorbet/rbi/gems/rb-bsdiff@0.1.0.rbi | 9 - sorbet/rbi/gems/xdiff@0.0.1.rbi | 33 - 73 files changed, 6 insertions(+), 10874 deletions(-) delete mode 100644 gems/rb-bsdiff/Gemfile delete mode 100644 gems/rb-bsdiff/Gemfile.lock delete mode 100644 gems/rb-bsdiff/LICENSE delete mode 100644 gems/rb-bsdiff/README delete mode 100644 gems/rb-bsdiff/Rakefile delete mode 100644 gems/rb-bsdiff/ext/b0 delete mode 100644 gems/rb-bsdiff/ext/b1 delete mode 100644 gems/rb-bsdiff/ext/bsdiff.c delete mode 100644 gems/rb-bsdiff/ext/bsdiff.h delete mode 100644 gems/rb-bsdiff/ext/bspatch.c delete mode 100644 gems/rb-bsdiff/ext/bspatch.h delete mode 100644 gems/rb-bsdiff/ext/extconf.rb delete mode 100644 gems/rb-bsdiff/ext/rb_bsdiff.c delete mode 100644 gems/rb-bsdiff/rb-bsdiff.gemspec delete mode 100644 gems/rb-bsdiff/test.rb delete mode 100644 gems/xdiff-rb/Gemfile delete mode 100644 gems/xdiff-rb/Gemfile.lock delete mode 100644 gems/xdiff-rb/Rakefile delete mode 100644 gems/xdiff-rb/ext/xdiff/extconf.rb delete mode 100644 gems/xdiff-rb/ext/xdiff/extension.cc delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff.tar.gz delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/AUTHORS delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/CMakeLists.txt delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/COPYING delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/ChangeLog delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/README delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/config.h.in delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff-lib.html delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.3 delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.html delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.pdf delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.txt delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/test/xdiff_test.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/test/xregression.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/test/xtestutils.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/test/xtestutils.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/tools/xrabin.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xalloc.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbpatchi.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiff.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xinclude.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmacros.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmerge3.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xpatchi.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabdiff.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabply.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xtypes.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.c delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.h delete mode 100644 gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xversion.c delete mode 100644 gems/xdiff-rb/lib/xdiff.rb delete mode 100644 gems/xdiff-rb/test/xdiff_test.rb delete mode 100644 gems/xdiff-rb/xdiff.gemspec delete mode 100644 sorbet/rbi/gems/diffy@3.4.3.rbi delete mode 100644 sorbet/rbi/gems/rb-bsdiff@0.1.0.rbi delete mode 100644 sorbet/rbi/gems/xdiff@0.0.1.rbi diff --git a/.devcontainer/Dockerfile.devcontainer b/.devcontainer/Dockerfile.devcontainer index abf0cb1b..1af34197 100644 --- a/.devcontainer/Dockerfile.devcontainer +++ b/.devcontainer/Dockerfile.devcontainer @@ -1,23 +1,3 @@ -FROM ruby:3.2 AS native-gems -RUN rm -f /etc/apt/apt.conf.d/docker-clean; \ - echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' > /etc/apt/apt.conf.d/keep-cache -RUN \ - --mount=type=cache,target=/var/cache/apt,sharing=locked \ - --mount=type=cache,target=/var/lib/apt,sharing=locked \ - apt-get update && \ - apt-get install --no-install-recommends --no-install-suggests -y \ - cmake - -WORKDIR /usr/src/app -RUN gem install bundler -v '2.4.5' -COPY gems gems -WORKDIR /usr/src/app/gems/xdiff-rb -RUN bundle install -RUN rake compile -WORKDIR /usr/src/app/gems/rb-bsdiff -RUN bundle install -RUN rake compile - # Primary image FROM mcr.microsoft.com/devcontainers/ruby:1-3.2-bookworm @@ -75,15 +55,13 @@ RUN wget -O- https://github.com/dandavison/delta/releases/download/0.18.2/git-de RUN git config --system core.pager "delta" && \ git config --system interactive.diffFilter "delta --color-only" && \ - git config --system delta.navigate true && \ - git config --system delta.dark true && \ - git config --system delta.side-by-side true && \ + git config --system delta.navigate "true" && \ + git config --system delta.dark "true" && \ + git config --system delta.side-by-side "true" && \ git config --system merge.conflictstyle "zdiff3" && \ - git config --system core.editor "cursor --wait" - -# Install native gems -COPY --from=native-gems /usr/src/app/gems/xdiff-rb /gems/xdiff-rb -COPY --from=native-gems /usr/src/app/gems/rb-bsdiff /gems/rb-bsdiff + git config --system core.editor "cursor --wait" && \ + git config --system diff.algorithm "histogram" && \ + git config --system diff.colorMoved "default" ENV RAILS_ENV development diff --git a/.gitignore b/.gitignore index 6f5a45ec..7a224916 100644 --- a/.gitignore +++ b/.gitignore @@ -8,9 +8,6 @@ build tmp core *.bundle -lib/xdiff -ext/xdiff/Makefile -ext/xdiff/xdiff user_scripts/dist migrated_files.txt diff --git a/Dockerfile b/Dockerfile index a6df10c0..5323eb58 100644 --- a/Dockerfile +++ b/Dockerfile @@ -1,23 +1,3 @@ -FROM ruby:3.2.6 AS native-gems -RUN rm -f /etc/apt/apt.conf.d/docker-clean; \ - echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' > /etc/apt/apt.conf.d/keep-cache -RUN \ - --mount=type=cache,target=/var/cache/apt,sharing=locked \ - --mount=type=cache,target=/var/lib/apt,sharing=locked \ - apt-get update && \ - apt-get install --no-install-recommends --no-install-suggests -y \ - cmake - -WORKDIR /usr/src/app -RUN gem install bundler -v '2.6.2' -COPY gems gems -WORKDIR /usr/src/app/gems/xdiff-rb -RUN bundle install -RUN rake compile -WORKDIR /usr/src/app/gems/rb-bsdiff -RUN bundle install -RUN rake compile - # Primary image FROM ruby:3.2.6 USER root @@ -64,9 +44,6 @@ RUN \ pdftohtml \ libreoffice -COPY --from=native-gems /usr/src/app/gems/xdiff-rb /gems/xdiff-rb -COPY --from=native-gems /usr/src/app/gems/rb-bsdiff /gems/rb-bsdiff - WORKDIR /usr/src/app COPY Gemfile Gemfile.lock ./ RUN echo "StrictHostKeyChecking no" >> /etc/ssh/ssh_config diff --git a/Gemfile b/Gemfile index 6d75be7e..ae7f95f3 100644 --- a/Gemfile +++ b/Gemfile @@ -106,12 +106,6 @@ group :test, :development do gem "spring-commands-parallel-tests" end -gem "xdiff", path: "/gems/xdiff-rb" - -# for legacy import -gem "diffy" -gem "rb-bsdiff", path: "/gems/rb-bsdiff" - gem "addressable" gem "colorize" gem "concurrent-ruby-edge", require: "concurrent-edge" diff --git a/Gemfile.lock b/Gemfile.lock index b81ef31a..ac951a6a 100644 --- a/Gemfile.lock +++ b/Gemfile.lock @@ -24,16 +24,6 @@ GIT railties websocket-driver -PATH - remote: /gems/rb-bsdiff - specs: - rb-bsdiff (0.1.0) - -PATH - remote: /gems/xdiff-rb - specs: - xdiff (0.0.1) - GIT remote: ssh://git@git.dy.mk:2221/dymk/has_aux_table.git revision: fb7912e3536c339cba55af54c3e647f69f5997f3 @@ -178,7 +168,6 @@ GEM dhash-vips (0.2.3.0) ruby-vips (~> 2.0, != 2.1.1, != 2.1.0) diff-lcs (1.5.1) - diffy (3.4.3) discard (1.4.0) activerecord (>= 4.2, < 9.0) disco (0.5.1) @@ -693,7 +682,6 @@ DEPENDENCIES debug (~> 1.10) devise (~> 4.9) dhash-vips - diffy discard disco docx @@ -731,7 +719,6 @@ DEPENDENCIES rails-controller-testing rails_live_reload! rails_semantic_logger (~> 4.17) - rb-bsdiff! react_on_rails ripcord rouge @@ -769,7 +756,6 @@ DEPENDENCIES unicode_plot web-console webdrivers - xdiff! zstd-ruby RUBY VERSION diff --git a/gems/rb-bsdiff/Gemfile b/gems/rb-bsdiff/Gemfile deleted file mode 100644 index d2fceab5..00000000 --- a/gems/rb-bsdiff/Gemfile +++ /dev/null @@ -1,5 +0,0 @@ -source "https://rubygems.org" - -git_source(:github) {|repo_name| "https://github.com/#{repo_name}" } - -gemspec diff --git a/gems/rb-bsdiff/Gemfile.lock b/gems/rb-bsdiff/Gemfile.lock deleted file mode 100644 index cf438db8..00000000 --- a/gems/rb-bsdiff/Gemfile.lock +++ /dev/null @@ -1,24 +0,0 @@ -PATH - remote: . - specs: - rb-bsdiff (0.1.0) - -GEM - remote: https://rubygems.org/ - specs: - minitest (5.18.0) - rake (13.0.6) - rake-compiler (1.2.1) - rake - -PLATFORMS - arm64-darwin-21 - -DEPENDENCIES - minitest - rake (>= 1.9.1) - rake-compiler (>= 0.8.3) - rb-bsdiff! - -BUNDLED WITH - 2.4.1 diff --git a/gems/rb-bsdiff/LICENSE b/gems/rb-bsdiff/LICENSE deleted file mode 100644 index a88dd58a..00000000 --- a/gems/rb-bsdiff/LICENSE +++ /dev/null @@ -1,27 +0,0 @@ -Copyright (c) 2012, Todd Fisher -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: -1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. -2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. -3. All advertising materials mentioning features or use of this software - must display the following acknowledgement: - This product includes software developed by the . -4. Neither the name of the nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY ''AS IS'' AND ANY -EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY -DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/gems/rb-bsdiff/README b/gems/rb-bsdiff/README deleted file mode 100644 index 3c498553..00000000 --- a/gems/rb-bsdiff/README +++ /dev/null @@ -1,6 +0,0 @@ -Ruby bindings to bsdiff and bspatch - - BSDiff.diff('ext/b0', 'ext/b1', 'p0') - - # apply patch to bspatch.o as bspatch2.o - BSDiff.patch('ext/b0', 'b3', 'p0') diff --git a/gems/rb-bsdiff/Rakefile b/gems/rb-bsdiff/Rakefile deleted file mode 100644 index 16ebdce9..00000000 --- a/gems/rb-bsdiff/Rakefile +++ /dev/null @@ -1,25 +0,0 @@ -require "rake/clean" -require "rake/testtask" -require "rake/extensiontask" - -gemspec = Gem::Specification.load("rb-bsdiff.gemspec") -Rake::ExtensionTask.new do |ext| - ext.name = "bsdiff" - ext.source_pattern = "*.{c,cc,h}" - ext.ext_dir = "ext" - ext.lib_dir = "lib" - ext.gem_spec = gemspec -end -task :default => [:compile, :test] - -CLEAN.include([ - "pkg/", - "tmp/", - "ext/Makefile", - "lib/bsdiff.so", -]) - -Rake::TestTask.new(:test) do |t| - t.libs << "lib" - t.test_files = FileList["test.rb"] -end diff --git a/gems/rb-bsdiff/ext/b0 b/gems/rb-bsdiff/ext/b0 deleted file mode 100644 index d737dcc966893fab514b463f3a5482cdc951b51e..0000000000000000000000000000000000000000 GIT binary patch literal 0 HcmV?d00001 literal 12260 zcmb<-^>JflWMqH=Mh0dE1doB?g91dx1Wai#$TCQQlbuh)JI{w1o@{=j zz`reky(9ES^P~FCYy3;Ta~yoe(OLSTv-S)Bwg5K9&<}#XU%Ep-bo+kcUviP-;3JMs z-!FzIJ3~M4Zwp|BNE@E)F8$D5`vqM$3q%@Kcj$*sUy#wvh9@D?xO6i?q_OK}gzLV9 z)ounx*AIfBUm9v}FjR7VkNwab`i0?p?3ZrW58a_(nvW>N#m64*{MNfi9TX&?olnEV 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zq2i!HO%Na4_7Y@Z=z@w*h0=?lG^h*$soM(WAAr)JvI8W39m;;l-bD?w%lGOl~LHP#6&w=u*p>#Kt2Ce%A$X;WMD7`(Yy={79d)XfdMp_2-05);`1^vfEM$D_$^R=Cx{kg zV3+}=H-Km+28JzA`UZ#=U|{$JqL~;NzCmeG(CDoI14A5$2H69pE1+~Mh&Ewh0M((O z{0*uX895mkK&>c7Zpi!-NZbOHpST$qKyyYQKB!3ynllIWfk8B=Pt3>$El=1W{TGlr E048T+DgXcg diff --git a/gems/rb-bsdiff/ext/bsdiff.c b/gems/rb-bsdiff/ext/bsdiff.c deleted file mode 100644 index f2deeba2..00000000 --- a/gems/rb-bsdiff/ext/bsdiff.c +++ /dev/null @@ -1,417 +0,0 @@ -/*- - * Copyright 2003-2005 Colin Percival - * All rights reserved - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted providing that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#if 0 -__FBSDID("$FreeBSD: src/usr.bin/bsdiff/bsdiff/bsdiff.c,v 1.1 2005/08/06 01:59:05 cperciva Exp $"); -#endif - -#include - -#include -#include -#include -#include -#include -#include - -#include - -#define MIN(x,y) (((x)<(y)) ? (x) : (y)) - -static void split(off_t *I,off_t *V,off_t start,off_t len,off_t h) -{ - off_t i,j,k,x,tmp,jj,kk; - - if(len<16) { - for(k=start;kstart) split(I,V,start,jj-start,h); - - for(i=0;ikk) split(I,V,kk,start+len-kk,h); -} - -static void qsufsort(off_t *I,off_t *V,u_char *old,off_t oldsize) -{ - off_t buckets[256]; - off_t i,h,len; - - for(i=0;i<256;i++) buckets[i]=0; - for(i=0;i0;i--) buckets[i]=buckets[i-1]; - buckets[0]=0; - - for(i=0;iy) { - *pos=I[st]; - return x; - } else { - *pos=I[en]; - return y; - } - }; - - x=st+(en-st)/2; - if(memcmp(old+I[x],new,MIN(oldsize-I[x],newsize))<0) { - return search(I,old,oldsize,new,newsize,x,en,pos); - } else { - return search(I,old,oldsize,new,newsize,st,x,pos); - }; -} - -static void offtout(off_t x,u_char *buf) -{ - off_t y; - - if(x<0) y=-x; else y=x; - - buf[0]=y%256;y-=buf[0]; - y=y/256;buf[1]=y%256;y-=buf[1]; - y=y/256;buf[2]=y%256;y-=buf[2]; - y=y/256;buf[3]=y%256;y-=buf[3]; - y=y/256;buf[4]=y%256;y-=buf[4]; - y=y/256;buf[5]=y%256;y-=buf[5]; - y=y/256;buf[6]=y%256;y-=buf[6]; - y=y/256;buf[7]=y%256; - - if(x<0) buf[7]|=0x80; -} - -/* create a patch file from oldfile diff'ed by newfile */ -int bsdiff_files(const char *oldfile, const char *newfile, const char *patchfile) -{ - int fd; - u_char *old,*new; - off_t oldsize,newsize; - off_t *I,*V; - off_t scan,pos=0,len; - off_t lastscan,lastpos,lastoffset; - off_t oldscore,scsc; - off_t s,Sf,lenf,Sb,lenb; - off_t overlap,Ss,lens; - off_t i; - off_t dblen,eblen; - u_char *db,*eb; - u_char buf[8]; - u_char header[32]; - FILE * pf; - BZFILE * pfbz2; - int bz2err; - - /* Allocate oldsize+1 bytes instead of oldsize bytes to ensure - that we never try to malloc(0) and get a NULL pointer */ - if(((fd=open(oldfile,O_RDONLY,0))<0) || - ((oldsize=lseek(fd,0,SEEK_END))==-1) || - ((old=malloc(oldsize+1))==NULL) || - (lseek(fd,0,SEEK_SET)!=0) || - (read(fd,old,oldsize)!=oldsize) || - (close(fd)==-1)) { - rb_raise(rb_eRuntimeError, "%s",oldfile); - } - - if(((I=malloc((oldsize+1)*sizeof(off_t)))==NULL) || - ((V=malloc((oldsize+1)*sizeof(off_t)))==NULL)) rb_raise(rb_eRuntimeError, "malloc error"); - - qsufsort(I,V,old,oldsize); - - free(V); - - /* Allocate newsize+1 bytes instead of newsize bytes to ensure - that we never try to malloc(0) and get a NULL pointer */ - if(((fd=open(newfile,O_RDONLY,0))<0) || - ((newsize=lseek(fd,0,SEEK_END))==-1) || - ((new=malloc(newsize+1))==NULL) || - (lseek(fd,0,SEEK_SET)!=0) || - (read(fd,new,newsize)!=newsize) || - (close(fd)==-1)) rb_raise(rb_eRuntimeError, "%s",newfile); - - if(((db=malloc(newsize+1))==NULL) || - ((eb=malloc(newsize+1))==NULL)) rb_raise(rb_eRuntimeError,"malloc error"); - dblen=0; - eblen=0; - - /* Create the patch file */ - if ((pf = fopen(patchfile, "w")) == NULL) - rb_raise(rb_eRuntimeError, "%s", patchfile); - - /* Header is - 0 8 "BSDIFF40" - 8 8 length of bzip2ed ctrl block - 16 8 length of bzip2ed diff block - 24 8 length of new file */ - /* File is - 0 32 Header - 32 ?? Bzip2ed ctrl block - ?? ?? Bzip2ed diff block - ?? ?? Bzip2ed extra block */ - memcpy(header,"BSDIFF40",8); - offtout(0, header + 8); - offtout(0, header + 16); - offtout(newsize, header + 24); - if (fwrite(header, 32, 1, pf) != 1) - rb_raise(rb_eRuntimeError, "fwrite(%s)", patchfile); - - /* Compute the differences, writing ctrl as we go */ - if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL) - rb_raise(rb_eRuntimeError, "BZ2_bzWriteOpen, bz2err = %d", bz2err); - scan=0;len=0; - lastscan=0;lastpos=0;lastoffset=0; - while(scanoldscore+8)) break; - - if((scan+lastoffsetSf*2-lenf) { Sf=s; lenf=i; }; - }; - - lenb=0; - if(scan=lastscan+i)&&(pos>=i);i++) { - if(old[pos-i]==new[scan-i]) s++; - if(s*2-i>Sb*2-lenb) { Sb=s; lenb=i; }; - }; - }; - - if(lastscan+lenf>scan-lenb) { - overlap=(lastscan+lenf)-(scan-lenb); - s=0;Ss=0;lens=0; - for(i=0;iSs) { Ss=s; lens=i+1; }; - }; - - lenf+=lens-overlap; - lenb-=lens; - }; - - for(i=0;i -#include -#include -#include -#include -#include - -#include - -static off_t offtin(u_char *buf) -{ - off_t y; - - y=buf[7]&0x7F; - y=y*256;y+=buf[6]; - y=y*256;y+=buf[5]; - y=y*256;y+=buf[4]; - y=y*256;y+=buf[3]; - y=y*256;y+=buf[2]; - y=y*256;y+=buf[1]; - y=y*256;y+=buf[0]; - - if(buf[7]&0x80) y=-y; - - return y; -} - -int bspatch_files(const char *oldfile, const char *newfile, const char *patchfile) -{ - FILE * f, * cpf, * dpf, * epf; - BZFILE * cpfbz2, * dpfbz2, * epfbz2; - int cbz2err, dbz2err, ebz2err; - int fd; - ssize_t oldsize,newsize; - ssize_t bzctrllen,bzdatalen; - u_char header[32],buf[8]; - u_char *old, *new; - off_t oldpos,newpos; - off_t ctrl[3]; - off_t lenread; - off_t i; - - /* Open patch file */ - if ((f = fopen(patchfile, "r")) == NULL) - rb_raise(rb_eRuntimeError, "fopen(%s)", patchfile); - - /* - File format: - 0 8 "BSDIFF40" - 8 8 X - 16 8 Y - 24 8 sizeof(newfile) - 32 X bzip2(control block) - 32+X Y bzip2(diff block) - 32+X+Y ??? bzip2(extra block) - with control block a set of triples (x,y,z) meaning "add x bytes - from oldfile to x bytes from the diff block; copy y bytes from the - extra block; seek forwards in oldfile by z bytes". - */ - - /* Read header */ - if (fread(header, 1, 32, f) < 32) { - if (feof(f)) - rb_raise(rb_eRuntimeError,"Corrupt patch\n"); - rb_raise(rb_eRuntimeError, "fread(%s)", patchfile); - } - - /* Check for appropriate magic */ - if (memcmp(header, "BSDIFF40", 8) != 0) - rb_raise(rb_eRuntimeError, "Corrupt patch\n"); - - /* Read lengths from header */ - bzctrllen=offtin(header+8); - bzdatalen=offtin(header+16); - newsize=offtin(header+24); - if((bzctrllen<0) || (bzdatalen<0) || (newsize<0)) - rb_raise(rb_eRuntimeError,"Corrupt patch\n"); - - /* Close patch file and re-open it via libbzip2 at the right places */ - if (fclose(f)) - rb_raise(rb_eRuntimeError, "fclose(%s)", patchfile); - if ((cpf = fopen(patchfile, "r")) == NULL) - rb_raise(rb_eRuntimeError, "fopen(%s)", patchfile); - if (fseeko(cpf, 32, SEEK_SET)) - rb_raise(rb_eRuntimeError, "fseeko(%s, %lld)", patchfile, - (long long)32); - if ((cpfbz2 = BZ2_bzReadOpen(&cbz2err, cpf, 0, 0, NULL, 0)) == NULL) - rb_raise(rb_eRuntimeError, "BZ2_bzReadOpen, bz2err = %d", cbz2err); - if ((dpf = fopen(patchfile, "r")) == NULL) - rb_raise(rb_eRuntimeError, "fopen(%s)", patchfile); - if (fseeko(dpf, 32 + bzctrllen, SEEK_SET)) - rb_raise(rb_eRuntimeError, "fseeko(%s, %lld)", patchfile, - (long long)(32 + bzctrllen)); - if ((dpfbz2 = BZ2_bzReadOpen(&dbz2err, dpf, 0, 0, NULL, 0)) == NULL) - rb_raise(rb_eRuntimeError, "BZ2_bzReadOpen, bz2err = %d", dbz2err); - if ((epf = fopen(patchfile, "r")) == NULL) - rb_raise(rb_eRuntimeError, "fopen(%s)", patchfile); - if (fseeko(epf, 32 + bzctrllen + bzdatalen, SEEK_SET)) - rb_raise(rb_eRuntimeError, "fseeko(%s, %lld)", patchfile, - (long long)(32 + bzctrllen + bzdatalen)); - if ((epfbz2 = BZ2_bzReadOpen(&ebz2err, epf, 0, 0, NULL, 0)) == NULL) - rb_raise(rb_eRuntimeError, "BZ2_bzReadOpen, bz2err = %d", ebz2err); - - if(((fd=open(oldfile,O_RDONLY,0))<0) || - ((oldsize=lseek(fd,0,SEEK_END))==-1) || - ((old=malloc(oldsize+1))==NULL) || - (lseek(fd,0,SEEK_SET)!=0) || - (read(fd,old,oldsize)!=oldsize) || - (close(fd)==-1)) rb_raise(rb_eRuntimeError,"%s",oldfile); - if((new=malloc(newsize+1))==NULL) rb_raise(rb_eRuntimeError,"malloc"); - - oldpos=0;newpos=0; - while(newposnewsize) - rb_raise(rb_eRuntimeError,"Corrupt patch\n"); - - /* Read diff string */ - lenread = BZ2_bzRead(&dbz2err, dpfbz2, new + newpos, ctrl[0]); - if ((lenread < ctrl[0]) || - ((dbz2err != BZ_OK) && (dbz2err != BZ_STREAM_END))) - rb_raise(rb_eRuntimeError, "Corrupt patch\n"); - - /* Add old data to diff string */ - for(i=0;i=0) && (oldpos+inewsize) - rb_raise(rb_eRuntimeError,"Corrupt patch\n"); - - /* Read extra string */ - lenread = BZ2_bzRead(&ebz2err, epfbz2, new + newpos, ctrl[1]); - if ((lenread < ctrl[1]) || - ((ebz2err != BZ_OK) && (ebz2err != BZ_STREAM_END))) - rb_raise(rb_eRuntimeError, "Corrupt patch\n"); - - /* Adjust pointers */ - newpos+=ctrl[1]; - oldpos+=ctrl[2]; - }; - - /* Clean up the bzip2 reads */ - BZ2_bzReadClose(&cbz2err, cpfbz2); - BZ2_bzReadClose(&dbz2err, dpfbz2); - BZ2_bzReadClose(&ebz2err, epfbz2); - if (fclose(cpf) || fclose(dpf) || fclose(epf)) - rb_raise(rb_eRuntimeError, "fclose(%s)", patchfile); - - /* Write the new file */ - if(((fd=open(newfile,O_CREAT|O_TRUNC|O_WRONLY,0666))<0) || - (write(fd,new,newsize)!=newsize) || (close(fd)==-1)) - rb_raise(rb_eRuntimeError,"%s",newfile); - - free(new); - free(old); - - return 0; -} diff --git a/gems/rb-bsdiff/ext/bspatch.h b/gems/rb-bsdiff/ext/bspatch.h deleted file mode 100644 index d47fcee7..00000000 --- a/gems/rb-bsdiff/ext/bspatch.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef BS_PATCH_H -#define BS_PATCH_H - -int bspatch_files(const char *oldfile, const char *newfile, const char *patchfile); - -#endif diff --git a/gems/rb-bsdiff/ext/extconf.rb b/gems/rb-bsdiff/ext/extconf.rb deleted file mode 100644 index 4417e528..00000000 --- a/gems/rb-bsdiff/ext/extconf.rb +++ /dev/null @@ -1,10 +0,0 @@ -require "mkmf" - -dir_config("bsdiff") -fail unless have_header("unistd.h") -fail unless have_header("bzlib.h") -fail unless have_library("bz2") -fail unless have_func("BZ2_bzWrite", "bzlib.h") -fail unless have_macro("BZ_OK", "bzlib.h") -create_header("bsdiff_config.h") -create_makefile("bsdiff") diff --git a/gems/rb-bsdiff/ext/rb_bsdiff.c b/gems/rb-bsdiff/ext/rb_bsdiff.c deleted file mode 100644 index d6408331..00000000 --- a/gems/rb-bsdiff/ext/rb_bsdiff.c +++ /dev/null @@ -1,30 +0,0 @@ -#include -#include "bsdiff.h" -#include "bspatch.h" - -VALUE BSDiff; - -static VALUE bsdiff_diff(VALUE mod, VALUE oldfile, VALUE newfile, VALUE patchfile) -{ - if( bsdiff_files(StringValuePtr(oldfile), StringValuePtr(newfile), StringValuePtr(patchfile)) ) { - return Qfalse; - } - return Qtrue; -} - -static VALUE bsdiff_patch(VALUE mod, VALUE oldfile, VALUE newfile, VALUE patchfile) -{ - if( bspatch_files(StringValuePtr(oldfile), StringValuePtr(newfile), StringValuePtr(patchfile)) ) { - return Qfalse; - } - return Qtrue; -} - -/* main entry point */ -void Init_bsdiff() -{ - BSDiff = rb_define_module("BSDiff"); - - rb_define_singleton_method(BSDiff, "diff", bsdiff_diff, 3); - rb_define_singleton_method(BSDiff, "patch", bsdiff_patch, 3); -} diff --git a/gems/rb-bsdiff/rb-bsdiff.gemspec b/gems/rb-bsdiff/rb-bsdiff.gemspec deleted file mode 100644 index 92012cf1..00000000 --- a/gems/rb-bsdiff/rb-bsdiff.gemspec +++ /dev/null @@ -1,33 +0,0 @@ -# -*- encoding: utf-8 -*- - -Gem::Specification.new do |s| - s.name = %q{rb-bsdiff} - s.version = "0.1.0" - - s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version= - s.authors = ["Todd Fisher"] - s.date = %q{2009-07-19} - s.description = %q{Ruby bindings to bindary diff tools bsdiff and bspatch} - s.email = %q{todd.fisher@gmail.com} - s.extensions = ["ext/extconf.rb"] - s.files = [ - "README", "Rakefile", "rb-bsdiff.gemspec", "test.rb", "ext/b0", - "ext/b1", "ext/bsdiff.c", "ext/bsdiff.h", "ext/bspatch.c", - "ext/bspatch.h", "ext/extconf.rb", "ext/rb_bsdiff.c", - ] - s.homepage = %q{http://github.com/taf2/rb-bsdiff} - s.rdoc_options = ["--inline-source", "--charset=UTF-8"] - s.require_paths = ["lib"] - s.rubyforge_project = %q{rb-bsdiff} - s.rubygems_version = %q{1.3.0} - s.summary = %q{Ruby bindings to bindary diff tools bsdiff and bspatch} - - if s.respond_to? :specification_version - current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION - s.specification_version = 2 - end - - s.add_development_dependency "rake", ">= 1.9.1" - s.add_development_dependency "rake-compiler", ">= 0.8.3" - s.add_development_dependency "minitest" -end diff --git a/gems/rb-bsdiff/test.rb b/gems/rb-bsdiff/test.rb deleted file mode 100644 index f7754b4b..00000000 --- a/gems/rb-bsdiff/test.rb +++ /dev/null @@ -1,34 +0,0 @@ -require "openssl" -require "test/unit" -require "bsdiff" - -class TestPatch < Test::Unit::TestCase - def setup - File.unlink("b3") if File.exist?("b3") - File.unlink("p0") if File.exist?("p0") - end - - def teardown - File.unlink("b3") if File.exist?("b3") - File.unlink("p0") if File.exist?("p0") - end - - def test_diff_and_patch - #../bsdiff b0 b1 p0 - #../bspatch b0 b3 p0 - - b0_chk = OpenSSL::Digest::MD5.hexdigest(File.read("ext/b0")) - b1_chk = OpenSSL::Digest::MD5.hexdigest(File.read("ext/b1")) - - # create patch file from bspatch.o to bsdiff.o - BSDiff.diff("ext/b0", "ext/b1", "p0") - - # apply patch to bspatch.o as bspatch2.o - BSDiff.patch("ext/b0", "b3", "p0") - - b3_chk = OpenSSL::Digest::MD5.hexdigest(File.read("b3")) - - # bspatch2.o should equal bsdiff.o - assert_equal(b1_chk, b3_chk) - end -end diff --git a/gems/xdiff-rb/Gemfile b/gems/xdiff-rb/Gemfile deleted file mode 100644 index 5f8acc7e..00000000 --- a/gems/xdiff-rb/Gemfile +++ /dev/null @@ -1,5 +0,0 @@ -source "https://rubygems.org" - -git_source(:github) {|repo_name| "https://github.com/#{repo_name}" } - -gemspec \ No newline at end of file diff --git a/gems/xdiff-rb/Gemfile.lock b/gems/xdiff-rb/Gemfile.lock deleted file mode 100644 index 45c0f021..00000000 --- a/gems/xdiff-rb/Gemfile.lock +++ /dev/null @@ -1,26 +0,0 @@ -PATH - remote: . - specs: - xdiff (0.0.1) - -GEM - remote: https://rubygems.org/ - specs: - minitest (5.17.0) - rake (13.0.6) - rake-compiler (1.2.1) - rake - -PLATFORMS - aarch64-linux - arm64-darwin-22 - x86_64-linux - -DEPENDENCIES - minitest - rake (>= 1.9.1) - rake-compiler (>= 0.8.3) - xdiff! - -BUNDLED WITH - 2.4.5 diff --git a/gems/xdiff-rb/Rakefile b/gems/xdiff-rb/Rakefile deleted file mode 100644 index fdd090c5..00000000 --- a/gems/xdiff-rb/Rakefile +++ /dev/null @@ -1,34 +0,0 @@ -require "bundler/gem_tasks" -require "rake/testtask" -require "rake/extensiontask" -require "rake/clean" - -Rake::TestTask.new(:test) do |t| - t.libs << "test" - t.libs << "lib" - t.test_files = FileList["test/**/*_test.rb"] -end - -gemspec = Gem::Specification.load("xdiff.gemspec") -Rake::ExtensionTask.new do |ext| - ext.name = "extension" - ext.source_pattern = "*.{c,cc,h}" - ext.ext_dir = "ext/xdiff" - ext.lib_dir = "lib/xdiff" - ext.gem_spec = gemspec -end - -task :benchmark_patch do - require "xdiff" - XDiff::Native.patch(nil, nil) -end - -task :default => [:compile, :test] -CLEAN.include([ - "pkg/", - "tmp/", - "ext/xdiff/xdiff", - "ext/xdiff/xdiff_build", - "ext/xdiff/Makefile", - "lib/xdiff/*.so", -]) diff --git a/gems/xdiff-rb/ext/xdiff/extconf.rb b/gems/xdiff-rb/ext/xdiff/extconf.rb deleted file mode 100644 index 8160a0e3..00000000 --- a/gems/xdiff-rb/ext/xdiff/extconf.rb +++ /dev/null @@ -1,55 +0,0 @@ -# typed: false -require "mkmf" -require "timeout" - -BASE_DIR = File.absolute_path(File.dirname(__FILE__)) - -# append_cppflags "-std=c++17 -O3" -# append_cppflags "-I#{BASE_DIR}/xdiff/xdiff" -$CXXFLAGS += " -std=c++17 -O3 " -$CXXFLAGS += " -I#{BASE_DIR}/xdiff/xdiff " - -abort "ERROR: cmake is required." if !find_executable("cmake") - -abort "ERROR: make is required." if !find_executable("make") - -def sys(cmd) - puts "(#{Dir.pwd}) -- #{cmd}" - unless ret = xsystem(cmd) - raise "ERROR: '#{cmd}' failed" - end - ret -end - -# helper to invoke cmake -def run_cmake(timeout, args) - # Set to process group so we can kill it and its children - pgroup = Gem.win_platform? ? :new_pgroup : :pgroup - pid = Process.spawn("cmake #{args}", pgroup => true) - - Timeout.timeout(timeout) { Process.waitpid(pid) } -rescue Timeout::Error - # Kill it, #detach is essentially a background wait, since we don't actually - # care about waiting for it now - Process.kill(-9, pid) - Process.detach(pid) - raise StandardError.new("cmake has exceeded its timeout of #{timeout}s") -end - -Dir.chdir("#{BASE_DIR}") do - sys("tar -xzf xdiff.tar.gz") unless Dir.exist?("xdiff") - Dir.mkdir("xdiff_build") unless Dir.exist?("xdiff_build") - Dir.chdir("xdiff_build") do - run_cmake( - 30, - "#{BASE_DIR}/xdiff -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=C++17" - ) - sys("make") - end -end - -$srcs = ["extension.cc"] -append_ldflags "-L#{BASE_DIR}/xdiff_build" -append_ldflags "-lxdiff" - -create_makefile "xdiff/extension" diff --git a/gems/xdiff-rb/ext/xdiff/extension.cc b/gems/xdiff-rb/ext/xdiff/extension.cc deleted file mode 100644 index 98d5d253..00000000 --- a/gems/xdiff-rb/ext/xdiff/extension.cc +++ /dev/null @@ -1,188 +0,0 @@ -#include "ruby/ruby.h" -#include "xdiff.h" - -#include -#include - -namespace { -class scope_guard { -public: - template - scope_guard(Callable && undo_func) try : f(std::forward(undo_func)) { - } catch(...) { - undo_func(); - throw; - } - - scope_guard(scope_guard && other) : f(std::move(other.f)) { - other.f = nullptr; - } - - ~scope_guard() { - if(f) f(); // must not throw - } - - void dismiss() noexcept { - f = nullptr; - } - - scope_guard(const scope_guard&) = delete; - void operator = (const scope_guard&) = delete; - -private: - std::function f; -}; - - -void* wrap_malloc(void* priv, unsigned int size) { - return malloc(size); -} - -void wrap_free(void* priv, void* ptr) { - free(ptr); -} - -void* wrap_realloc(void* priv, void* ptr, unsigned int size) { - return realloc(ptr, size); -} - -bool initialized = false; -VALUE init(VALUE self) { - if (initialized) { - return Qnil; - } - initialized = true; - memallocator_t malt; - malt.priv = NULL; - malt.malloc = wrap_malloc; - malt.free = wrap_free; - malt.realloc = wrap_realloc; - xdl_set_allocator(&malt); - return Qnil; -} - -struct DiffWriter { - std::string accum; - - static int write(void* writer_, mmbuffer_t* bufs, int bufsize) { - assert(bufsize > 0); - DiffWriter* writer = reinterpret_cast(writer_); - - for (auto i = 0; i < bufsize; i++) { - writer->accumulate_buf(bufs[i].ptr, bufs[i].size); - } - - return 0; - } - - void accumulate_buf(const char* str, size_t len) { - accum.append(str, len); - } -}; - -std::string get_diff( - char* base, - size_t base_len, - char* against, - size_t against_len - ) { - mmbuffer_t base_mm; - base_mm.ptr = base; - base_mm.size = base_len; - - mmbuffer_t against_mm; - against_mm.ptr = against; - against_mm.size = against_len; - - bdiffparam_t bdp; - bdp.bsize = 16; - - DiffWriter writer; - xdemitcb_t ecb; - ecb.priv = &writer; - ecb.outf = DiffWriter::write; - - int err = xdl_bdiff_mb(&base_mm, &against_mm, &bdp, &ecb); - if (err < 0) { - return std::string("(error)"); - } - - return std::move(writer.accum); -} - - -std::string get_patched( - char *base, - size_t base_len, - char *patch, - size_t patch_len - ) { - mmfile_t base_mm; - mmfile_t patch_mm; - - int ret; - if ((ret = xdl_init_mmfile(&base_mm, base_len, XDL_MMF_ATOMIC))) { - return "(xdl_init_mmfile error - base)"; - } - - auto free_base_guard = scope_guard([&] { xdl_free_mmfile(&base_mm); }); - - if ((ret = xdl_init_mmfile(&patch_mm, patch_len, XDL_MMF_ATOMIC))) { - return "(xdl_init_mmfile error - patch)"; - } - - auto free_patch_guard = scope_guard([&] { xdl_free_mmfile(&patch_mm); }); - - if (xdl_write_mmfile(&base_mm, base, base_len) != base_len) { - return "(xdl_write_mmfile error - base)"; - } - if (xdl_write_mmfile(&patch_mm, patch, patch_len) != patch_len) { - return "(xdl_write_mmfile error - patch)"; - } - - DiffWriter writer; - xdemitcb_t ecb; - ecb.priv = &writer; - ecb.outf = DiffWriter::write; - - auto err = xdl_bpatch(&base_mm, &patch_mm, &ecb); - if (err != 0) { - return "(xdl_bpatch error)"; - } - - return std::move(writer.accum); -} -VALUE diff(VALUE self, VALUE base, VALUE against) { - std::string patch = get_diff( - StringValuePtr(base), - RSTRING_LEN(base), - StringValuePtr(against), - RSTRING_LEN(against) - ); - - return rb_str_new(patch.c_str(), patch.size()); -} - -VALUE patch(VALUE self, VALUE base, VALUE patch) { - std::string patched = get_patched( - StringValuePtr(base), - RSTRING_LEN(base), - StringValuePtr(patch), - RSTRING_LEN(patch) - ); - - return rb_str_new(patched.c_str(), patched.size()); -} -} - -extern "C" void Init_extension(void) { -#ifdef RB_EXT_RACTOR_SAFE - rb_ext_ractor_safe(true); -#endif - - VALUE XDiff = rb_define_module("XDiff"); - VALUE Native = rb_define_class_under(XDiff, "Native", rb_cObject); - rb_define_singleton_method(Native, "patch", patch, 2); - rb_define_singleton_method(Native, "diff", diff, 2); - rb_define_singleton_method(Native, "init", init, 0); -} \ No newline at end of file diff --git a/gems/xdiff-rb/ext/xdiff/xdiff.tar.gz b/gems/xdiff-rb/ext/xdiff/xdiff.tar.gz deleted file mode 100644 index 66db5217c122b56e490fa605f87d16a1879fe72c..0000000000000000000000000000000000000000 GIT binary patch literal 0 HcmV?d00001 literal 88964 zcmb2|=3oE=<~OyRb40FQ)n6o}DcUnDqi0r;$jrvH8HqC-C7Mi(Z7&qgkW5Py3|zfC zd)Mig>#|m@O3!c=?)@#~a3{P+%CxIXEl=QM@qNQCsiV4G83n8{kA!NU&)FRkT7Le; z_qzF&`@hGjeO!Jyw)FkZ=kuP{PpeK3JoMt7ob?O#zbl*Ob8g-G?gX0E;6mpJp)j#IBD z+*)${&78F7S6_7st7~=LN=W^@ZKBW4tV(CrI*#)X!m}o?eVx^Q_3gLJZR^Y;EsYoM zH1P50o%PYH)otC}6=knx=0t_xz7!S1zf#un@YSocX04iFb+#y`rYbEW^q@mXc>l_E zD`zcO6)T(Q+WX~I**&Aus|6u97W6#aRpnHwYs&Xz#jKeD!flUlx#_SUKDgO%hE;RC 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z^;0j&hq3EP^S`{nR$pf4yxFsQ$(xfo!5=OxzRn-_kDs_BL?36NCx06FKgt=92PsPV43*t-rm;x>= zlzBDr#k*_syStUF=P$frc_?C`b#--lg5P$RtIg```4((UKOZ06qw(DAM}5PadW)KC z8SaJHc0s9ZuTTVUErYdJ|S@TW&WZbHCE9a`6D(y)R+A~`uI4I>y-fQu2nZUaN$0y9% zk|cFmChBFBQ%Kk|oy6W*x)W69Fs+!G3IjcUNoZbEB>AFoe?@r&4ocT;()j!3$Ue=9*nJ%l% zF5_lw-E*!hJKnd88<_;&IwYp1Ir-<-)o*r`tP#+UTOOTuL1$89PxjrszmfIV=6_Ac TMm_JY`&a*jb=MV!09FP7xqyZW diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/AUTHORS b/gems/xdiff-rb/ext/xdiff/xdiff/AUTHORS deleted file mode 100644 index 32e63cbc..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/AUTHORS +++ /dev/null @@ -1,2 +0,0 @@ -Davide Libenzi - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/CMakeLists.txt b/gems/xdiff-rb/ext/xdiff/xdiff/CMakeLists.txt deleted file mode 100644 index e87070e6..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/CMakeLists.txt +++ /dev/null @@ -1,122 +0,0 @@ -CMAKE_MINIMUM_REQUIRED(VERSION 3.2) - -# Project definition - -PROJECT(LibXDiff) - -# Package name and version - -SET(PACKAGE_NAME xdiff) - -SET(PACKAGE_MAJOR_VERSION 0) -SET(PACKAGE_VERSION "${PACKAGE_MAJOR_VERSION}.23") - -# Some options to customise the build - -OPTION(ENABLE_TESTS "Enable the tests to be built" OFF) -OPTION(ENABLE_TOOLS "Enable the tools to be built" OFF) - -# Check for some include files and functions - -INCLUDE(CheckIncludeFiles) -INCLUDE(CheckFunctionExists) - -CHECK_INCLUDE_FILES(limits.h HAVE_LIMITS_H) -CHECK_FUNCTION_EXISTS(memchr HAVE_MEMCHR) -CHECK_FUNCTION_EXISTS(memcmp HAVE_MEMCMP) -CHECK_FUNCTION_EXISTS(memcpy HAVE_MEMCPY) -CHECK_FUNCTION_EXISTS(memset HAVE_MEMSET) -CHECK_INCLUDE_FILES(stdio.h HAVE_STDIO_H) -CHECK_INCLUDE_FILES(stdlib.h HAVE_STDLIB_H) -CHECK_INCLUDE_FILES(string.h HAVE_STRING_H) -CHECK_FUNCTION_EXISTS(strlen HAVE_STRLEN) -CHECK_INCLUDE_FILES(unistd.h HAVE_UNISTD_H) - -# Configure LibXDiff - -CONFIGURE_FILE(config.h.in config.h) - -ADD_DEFINITIONS(-DHAVE_CONFIG_H) - -INCLUDE_DIRECTORIES(${CMAKE_BINARY_DIR}) -INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR}) - -# Build LibXDiff - -IF(WIN32) - ADD_DEFINITIONS(-DLIBXDIFF_DLL_EXPORT) -ENDIF() - -ADD_LIBRARY(${PACKAGE_NAME} STATIC - xdiff/xadler32.c - xdiff/xalloc.c - xdiff/xbdiff.c - xdiff/xbpatchi.c - xdiff/xdiffi.c - xdiff/xemit.c - xdiff/xmerge3.c - xdiff/xmissing.c - xdiff/xpatchi.c - xdiff/xprepare.c - xdiff/xrabdiff.c - xdiff/xrabply.c - xdiff/xutils.c - xdiff/xversion.c -) - -SET_TARGET_PROPERTIES(${PACKAGE_NAME} PROPERTIES VERSION ${PACKAGE_VERSION}) -SET_TARGET_PROPERTIES(${PACKAGE_NAME} PROPERTIES SOVERSION ${PACKAGE_MAJOR_VERSION}) - -# Install LibXDiff - -INSTALL(TARGETS ${PACKAGE_NAME} - RUNTIME DESTINATION bin - LIBRARY DESTINATION lib - ARCHIVE DESTINATION lib) - -INSTALL(FILES xdiff/xdiff.h - DESTINATION include) - -# Set the RPATH information on Linux and macOS - -IF(ENABLE_TESTS OR ENABLE_TOOLS) - IF(APPLE) - SET(CMAKE_INSTALL_RPATH "@executable_path/../lib") - ELSEIF(NOT WIN32) - SET(CMAKE_INSTALL_RPATH "$ORIGIN/../lib") - ENDIF() -ENDIF() - -# Build the tests, if requested - -IF(ENABLE_TESTS) - INCLUDE_DIRECTORIES(xdiff) - - ADD_EXECUTABLE(xdiff_test - test/xdiff_test.c - test/xtestutils.c - ) - - TARGET_LINK_LIBRARIES(xdiff_test ${PACKAGE_NAME}) - - ADD_EXECUTABLE(xregression - test/xregression.c - test/xtestutils.c - ) - - TARGET_LINK_LIBRARIES(xregression ${PACKAGE_NAME}) - - INSTALL(TARGETS xregression - RUNTIME DESTINATION bin) -ENDIF() - -# Build the tools, if requested - -IF(ENABLE_TOOLS) - ADD_EXECUTABLE(xrabin - tools/xrabin.c - ) - - INSTALL(TARGETS xrabin - RUNTIME DESTINATION bin) -ENDIF() diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/COPYING b/gems/xdiff-rb/ext/xdiff/xdiff/COPYING deleted file mode 100644 index 0d3dec19..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/COPYING +++ /dev/null @@ -1,504 +0,0 @@ - GNU LESSER GENERAL PUBLIC LICENSE - Version 2.1, February 1999 - - Copyright (C) 1991, 1999 Free Software Foundation, Inc. - 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - -[This is the first released version of the Lesser GPL. It also counts - as the successor of the GNU Library Public License, version 2, hence - the version number 2.1.] - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. By contrast, the GNU General Public -Licenses are intended to guarantee your freedom to share and change -free software--to make sure the software is free for all its users. - - This license, the Lesser General Public License, applies to some -specially designated software packages--typically libraries--of the -Free Software Foundation and other authors who decide to use it. You -can use it too, but we suggest you first think carefully about whether -this license or the ordinary General Public License is the better -strategy to use in any particular case, based on the explanations below. - - When we speak of free software, we are referring to freedom of use, -not price. Our General Public Licenses are designed to make sure that -you have the freedom to distribute copies of free software (and charge -for this service if you wish); that you receive source code or can get -it if you want it; that you can change the software and use pieces of -it in new free programs; and that you are informed that you can do -these things. - - To protect your rights, we need to make restrictions that forbid -distributors to deny you these rights or to ask you to surrender these -rights. These restrictions translate to certain responsibilities for -you if you distribute copies of the library or if you modify it. - - For example, if you distribute copies of the library, whether gratis -or for a fee, you must give the recipients all the rights that we gave -you. You must make sure that they, too, receive or can get the source -code. 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Here is a sample; alter the names: - - Yoyodyne, Inc., hereby disclaims all copyright interest in the - library `Frob' (a library for tweaking knobs) written by James Random Hacker. - - , 1 April 1990 - Ty Coon, President of Vice - -That's all there is to it! - - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/ChangeLog b/gems/xdiff-rb/ext/xdiff/xdiff/ChangeLog deleted file mode 100644 index a46dafb0..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/ChangeLog +++ /dev/null @@ -1,5 +0,0 @@ - -* Sun, Mar 26 2006 - Davide Libenzi - - Fixed the missing end of line problem for text diff and patch. - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/README b/gems/xdiff-rb/ext/xdiff/xdiff/README deleted file mode 100644 index 07e92925..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/README +++ /dev/null @@ -1,34 +0,0 @@ -LibXDiff 0.23 (http://www.xmailserver.org/xdiff-lib.html) - -The LibXDiff library implements basic and yet complete functionalities to create -file differences/patches to both binary and text files. The library uses memory -files as file abstraction to achieve both performance and portability. For -binary files, LibXDiff implements both (with some modification) the algorithm -described in File System Support for Delta Compression by Joshua P. MacDonald, -and the algorithm described in Fingerprinting By Random Polynomials by Michael -O. Rabin. While for text files it follows directives described in An O(ND) -Difference Algorithm and Its Variations by Eugene W. Myers. Memory files used by -the library are basically a collection of buffers that store the file content. -There are two different requirements for memory files when passed to diff/patch -functions. Text files for diff/patch functions require that a single line do not -have to spawn across two different memory file blocks. Binary diff/patch -functions require memory files to be compact. A compact memory files is a file -whose content is stored inside a single block. Functionalities inside the -library are available to satisfy these rules. Using the XDL_MMF_ATOMIC memory -file flag it is possible to make writes to not split the written record across -different blocks, while the functions xdl_mmfile_iscompact() , -xdl_mmfile_compact() and xdl_mmfile_writeallocate() are usefull to test if the -file is compact and to create a compacted version of the file itself. The text -file differential output uses the raw unified output format, by omitting the -file header since the result is always relative to a single compare operation -(between two files). The output format of the binary patch file is proprietary -(and binary) and it is basically a collection of copy and insert commands, like -described inside the MacDonald paper. The library is compatible with almost -every Unix implementation (configure script) and it is also compatible with -Windows through custom (nmake) make files. Examples are available inside the -test subdirectory of the distribution tarball that show how to use the library. -Also, inside the same subdirectory, a regression test in available that tests -the library with random data by requiring a diff followed by a patch and -comparing results. Regression tests ran successfully for days on my Linux, -Solaris, FreeBSD and Windows boxes, and this makes me believe that the library -itself is completely ready for production (despite the version number). diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/config.h.in b/gems/xdiff-rb/ext/xdiff/xdiff/config.h.in deleted file mode 100644 index e06e1346..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/config.h.in +++ /dev/null @@ -1,34 +0,0 @@ -/* config.h.in. Generated from configure.in by autoheader. */ - -/* Define to 1 if you have the header file. */ -#cmakedefine HAVE_LIMITS_H 1 - -/* Define to 1 if you have the `memchr' function. */ -#cmakedefine HAVE_MEMCHR 1 - -/* Define to 1 if you have the `memcmp' function. */ -#cmakedefine HAVE_MEMCMP 1 - -/* Define to 1 if you have the `memcpy' function. */ -#cmakedefine HAVE_MEMCPY 1 - -/* Define to 1 if you have the `memset' function. */ -#cmakedefine HAVE_MEMSET 1 - -/* Define to 1 if you have the header file. */ -#cmakedefine HAVE_STDIO_H 1 - -/* Define to 1 if you have the header file. */ -#cmakedefine HAVE_STDLIB_H 1 - -/* Define to 1 if you have the header file. */ -#cmakedefine HAVE_STRING_H 1 - -/* Define to 1 if you have the `strlen' function. */ -#cmakedefine HAVE_STRLEN 1 - -/* Define to 1 if you have the header file. */ -#cmakedefine HAVE_UNISTD_H 1 - -/* Define to the version of this package. */ -#cmakedefine PACKAGE_VERSION "@PACKAGE_VERSION@" diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff-lib.html b/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff-lib.html deleted file mode 100644 index df7d2267..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff-lib.html +++ /dev/null @@ -1,105 +0,0 @@ - - - - - - - LibXDiff Home Page - - -

LibXDiff
-

-

 
-The LibXDiff library implements basic and yet complete -functionalities to create file differences/patches to both binary and -text files. The library uses memory files as file abstraction to -achieve -both performance and portability. For binary files, LibXDiff -implements both (with some modification) the algorithm described in File -System Support for Delta Compression by Joshua P. MacDonald, -and the algorithm described in Fingerprinting -By Random Polynomials by Michael -O. Rabin. While for text files it follows directives described -in An O(ND) -Difference Algorithm and Its Variations by Eugene W. Myers. -Memory files used by the library are basically a collection of buffers -that store the file content. There are two different requirements for -memory files when passed to diff/patch functions. Text files for -diff/patch functions require that a single line do not have to spawn -across two different memory file blocks. Binary diff/patch functions -require memory files to be compact. A compact memory files is a file -whose content is stored inside a single block. Functionalities inside -the library are available to satisfy these rules. Using the XDL_MMF_ATOMIC -memory file flag it is possible to make writes to not split the written -record across different blocks, while the functions xdl_mmfile_iscompact() -, xdl_mmfile_compact() and xdl_mmfile_writeallocate() -are usefull to test if the file is compact and to create a compacted -version of the file itself. The text file differential output uses the -raw unified output format, by omitting the file header since the result -is always relative to a single compare operation (between two files). -The output format of the binary patch file is proprietary (and binary) -and it is basically a collection of copy and insert commands, like -described inside the MacDonald paper. The library is compatible with -almost every Unix implementation (configure script) and it is also -compatible with Windows through custom (nmake) make files. Examples are -available inside the test -subdirectory of the distribution tarball that show how to use the -library. Also, inside the same subdirectory, a regression test in -available that tests the library with random data by requiring a diff -followed by a patch and comparing results. Regression tests ran -successfully for days on my Linux, Solaris, FreeBSD and Windows boxes, -and this makes me believe that the library itself is completely ready -for production (despite the version number).
-

-


-

-

Documentation
-

- -

License -and Software

-

LibXDiff  -is made available through the GNU LGPL license -together with the complete sources. Please read carefully the license before -using -the software. The latest library package is available here :

-

Version -0.23

-


-

-

Links And Docs
-

- - - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.3 b/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.3 deleted file mode 100644 index ca0ebbd7..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.3 +++ /dev/null @@ -1,871 +0,0 @@ -.\" -.\" LibXDiff by Davide Libenzi ( File Differential Library ) -.\" Copyright (C) 2003 Davide Libenzi -.\" -.\" This library is free software; you can redistribute it and/or -.\" modify it under the terms of the GNU Lesser General Public -.\" License as published by the Free Software Foundation; either -.\" version 2.1 of the License, or (at your option) any later version. -.\" -.\" This library is distributed in the hope that it will be useful, -.\" but WITHOUT ANY WARRANTY; without even the implied warranty of -.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -.\" Lesser General Public License for more details. -.\" -.\" You should have received a copy of the GNU General Public License -.\" along with this program; if not, write to the Free Software -.\" Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -.\" -.\" Davide Libenzi -.\" -.na -.TH LibXDiff 3 "0.23" "GNU" "File Differential Library" -.SH NAME - -xdl_set_allocator, xdl_malloc, xdl_free, xdl_realloc, xdl_init_mmfile, xdl_free_mmfile, -xdl_mmfile_iscompact, xdl_seek_mmfile, xdl_read_mmfile, xdl_write_mmfile, xdl_writem_mmfile, -xdl_mmfile_writeallocate, xdl_mmfile_ptradd, xdl_mmfile_first, xdl_mmfile_next, xdl_mmfile_size, xdl_mmfile_cmp, -xdl_mmfile_compact, xdl_diff, xdl_patch, xdl_merge3, xdl_bdiff_mb, xdl_bdiff, xdl_rabdiff_mb, xdl_rabdiff, -xdl_bdiff_tgsize, xdl_bpatch \- File Differential Library support functions - -.SH SYNOPSIS -.nf -.B #include -.sp -.BI "int xdl_set_allocator(memallocator_t const *" malt ");" -.nl -.BI "void *xdl_malloc(unsigned int " size ");" -.nl -.BI "void xdl_free(void *" ptr ");" -.nl -.BI "void *xdl_realloc(void *" ptr ", unsigned int " nsize ");" -.nl -.BI "int xdl_init_mmfile(mmfile_t *" mmf ", long " bsize ", unsigned long " flags ");" -.nl -.BI "void xdl_free_mmfile(mmfile_t *" mmf ");" -.nl -.BI "int xdl_mmfile_iscompact(mmfile_t *" mmf ");" -.nl -.BI "int xdl_seek_mmfile(mmfile_t *" mmf ", long " off ");" -.nl -.BI "long xdl_read_mmfile(mmfile_t *" mmf ", void *" data ", long " size ");" -.nl -.BI "long xdl_write_mmfile(mmfile_t *" mmf ", void const *" data ", long " size ");" -.nl -.BI "long xdl_writem_mmfile(mmfile_t *" mmf ", mmbuffer_t *" mb ", int " nbuf ");" -.nl -.BI "void *xdl_mmfile_writeallocate(mmfile_t *" mmf ", long " size ");" -.nl -.BI "long xdl_mmfile_ptradd(mmfile_t *" mmf ", char *" ptr ", long " size ", unsigned long " flags ");" -.nl -.BI "void *xdl_mmfile_first(mmfile_t *" mmf ", long *" size ");" -.nl -.BI "void *xdl_mmfile_next(mmfile_t *" mmf ", long *" size ");" -.nl -.BI "long xdl_mmfile_size(mmfile_t *" mmf ");" -.nl -.BI "int xdl_mmfile_cmp(mmfile_t *" mmf1 ", mmfile_t *" mmf2 ");" -.nl -.BI "int xdl_mmfile_compact(mmfile_t *" mmfo ", mmfile_t *" mmfc ", long " bsize ", unsigned long " flags ");" -.nl -.BI "int xdl_diff(mmfile_t *" mmf1 ", mmfile_t *" mmf2 ", xpparam_t const *" xpp ", xdemitconf_t const *" xecfg ", xdemitcb_t *" ecb ");" -.nl -.BI "int xdl_patch(mmfile_t *" mmf ", mmfile_t *" mmfp ", int " mode ", xdemitcb_t *" ecb ", xdemitcb_t *" rjecb ");" -.nl -.BI "int xdl_merge3(mmfile_t *" mmfo ", mmfile_t *" mmf1 ", mmfile_t *" mmf2 ", xdemitcb_t *" ecb ", xdemitcb_t *" rjecb ");" -.nl -.BI "int xdl_bdiff_mb(mmbuffer_t *" mmb1 ", mmbuffer_t *" mmb2 ", bdiffparam_t const *" bdp ", xdemitcb_t *" ecb ");" -.nl -.BI "int xdl_bdiff(mmfile_t *" mmf1 ", mmfile_t *" mmf2 ", bdiffparam_t const *" bdp ", xdemitcb_t *" ecb ");" -.nl -.BI "int xdl_rabdiff_mb(mmbuffer_t *" mmb1 ", mmbuffer_t *" mmb2 ", xdemitcb_t *" ecb ");" -.nl -.BI "int xdl_rabdiff(mmfile_t *" mmf1 ", mmfile_t *" mmf2 ", xdemitcb_t *" ecb ");" -.nl -.BI "long xdl_bdiff_tgsize(mmfile_t *" mmfp ");" -.nl -.BI "int xdl_bpatch(mmfile_t *" mmf ", mmfile_t *" mmfp ", xdemitcb_t *" ecb ");" - -.SH DESCRIPTION -The -.B LibXDiff -library implements basic and yet complete functionalities to create -file differences/patches to both binary and text files. The library -uses memory files as file abstraction to achieve both performance and -portability. For binary files, -.B LibXDiff -implements both (with some modification) the algorithm described in -.IR "File System Support for Delta Compression" " by " "Joshua P. MacDonald" , -and the method described in -.IR "Fingerprinting by Random Polynomials" " by " "Michael O. Rabin" "." -While for text files it follows directives described in -.IR "An O(ND) Difference Algorithm and Its Variations" " by " "Eugene W. Myers" . -Memory files used by the library are basically a collection of buffers -that store the file content. There are two different requirements for memory -files when passed to diff/patch functions. Text files for diff/patch functions -require that a single line do not have to spawn across two different memory -file blocks. Binary diff/patch functions require memory files to be compact. -A compact memory files is a file whose content is stored inside a single block. -Functionalities inside the library are available to satisfy these rules. -Using the -.B XDL_MMF_ATOMIC -memory file flag it is possible to make writes to not split the written -record across different blocks, while the functions -.BR xdl_mmfile_iscompact () -, -.BR xdl_mmfile_compact () -and -.BR xdl_mmfile_writeallocate () -are usefull to test if the file is compact and to create a compacted version -of the file itself. The text file differential output uses the raw unified output -format, by omitting the file header since the result is always relative to -a single compare operation (between two files). The output format of the binary -patch file is proprietary (and binary) and it is basically a collection of -copy and insert commands, like described inside the MacDonald paper. - - -.SS Functions -The following functions are defined: -.TP -.BI "int xdl_set_allocator(memallocator_t const *" malt ");" - -The -.B LibXDiff -library enable the user to set its own memory allocator, that will be used -for all the following memory requests. The allocator must be set before -to start calling the -.B LibXDiff -library with a call to -.BR xdl_set_allocator (). -The memory allocator structure contains the following members: -.nf - - typedef struct s_memallocator { - void *priv; - void *(*malloc)(void *priv, unsigned int size); - void (*free)(void *priv, void *ptr); - void *(*realloc)(void *priv, void *ptr, unsigned int nsize); - } memallocator_t; - -.fi -The -.BR malloc () -function pointer will be used by -.B LibXDiff -to request a memory block of -.I size -bytes. The -.BR free () -function pointer will be called to free a previously allocated block -.I ptr -, while the -.BR realloc () -will be used to resize the -.I ptr -to a new -.I nsize -size in bytes. The -.B priv -structure member will be passed to the -.BR malloc (), free (), realloc () -functions as first parameter. The -.B LibXDiff -user must call -.BR xdl_set_allocator () -before starting using the library, otherwise -.B LibXDiff -functions will fail due to the lack of memory allocation support. -A typical initialization sequence for -.B POSIX -systems will use the standard -.BR malloc (3), -.BR free (3), -.BR realloc (3) -and will look like: -.nf - - void *wrap_malloc(void *priv, unsigned int size) { - return malloc(size); - } - - void wrap_free(void *priv, void *ptr) { - free(ptr); - } - - void *wrap_realloc(void *priv, void *ptr, unsigned int size) { - return realloc(ptr, size); - } - - void my_init_xdiff(void) { - memallocator_t malt; - - malt.priv = NULL; - malt.malloc = wrap_malloc; - malt.free = wrap_free; - malt.realloc = wrap_realloc; - xdl_set_allocator(&malt); - } - -.fi - -.TP -.BI "void *xdl_malloc(unsigned int " size ");" - -Allocates a memory block of -.I size -bytes using the -.B LibXDiff -memory allocator. The user can specify its own allocator using the -.BR xdl_set_allocator () -function. The -.BR xdl_malloc () -return a pointer to the newly allocated block, or -.B NULL -in case of failure. - -.TP -.BI "void xdl_free(void *" ptr ");" - -Free a previously allocated memory block pointed by -.IR ptr . -The -.I ptr -block must has been allocated using either -.BR xdl_malloc () -or -.BR xdl_realloc (). - -.TP -.BI "void *xdl_realloc(void *" ptr ", unsigned int " nsize ");" - -Resizes the memory block pointed by -.I ptr -to a new size -.IR nsize . -Return the resized block if successful, or -.B NULL -in case the reallocation fails. After a successful reallocation, the old -.I ptr -block is to be considered no more valid. - -.TP -.BI "int xdl_init_mmfile(mmfile_t *" mmf ", long " bsize ", unsigned long " flags ");" - -Initialize the memory file -.I mmf -by requiring an internal block size of -.IR bsize . -The -.I flags -parameter is a combination of the following flags : -.br -.IP -.B XDL_MMF_ATOMIC -Writes on the memory file will be atomic. That is, the data will not be split -on two or more different blocks. - -Once an -.BR xdl_init_mmfile () -succeeded, a matching -.BR xdl_free_mmfile () -must be called when the user has done using the memory file, otherwise serious -memory leaks will happen. -The function return 0 if succeed or -1 if an error is encountered. - -.TP -.BI "void xdl_free_mmfile(mmfile_t *" mmf ");" - -Free all the data associated with the -.I mmf -memory file. - -.TP -.BI "int xdl_mmfile_iscompact(mmfile_t *" mmf ");" - -Returns an integer different from 0 if the -.I mmf -memory file is compact, 0 otherwise. A compact memory file is one that have -the whole content stored inside a single block. - -.TP -.BI "int xdl_seek_mmfile(mmfile_t *" mmf ", long " off ");" - -Set the current data pointer of the memory file -.I mmf -to the specified offset -.I off -from the beginning of the file itself. Returns 0 if successful or -1 if an error -happened. - -.TP -.BI "long xdl_read_mmfile(mmfile_t *" mmf ", void *" data ", long " size ");" - -Request to read -.I size -bytes from the memory file -.I mmf -by storing the data inside the -.I data -buffer. Returns the number of bytes read into the -.I data -buffer. The amount of data read can be lower than the specified -.IR size . -The function returns -1 if an error happened. - -.TP -.BI "long xdl_write_mmfile(mmfile_t *" mmf ", void const *" data ", long " size ");" - -Request to write -.I size -bytes from the specified buffer -.I data -into the memory file -.IR mmf . -If the memory file has been created using the -.B XDL_MMF_ATOMIC -flag, the write request will not be split across different blocks. -Note that all write operations done on memory files do append data at the end -the file, and writes in the middle of it are allowed. This is because the library -memory file abstraction does not need this functionality to be available. -The function returns the number of bytes written or a number lower than -.I size -if an error happened. - -.TP -.BI "long xdl_writem_mmfile(mmfile_t *" mmf ", mmbuffer_t *" mb ", int " nbuf ");" - -Request to sequentially write -.I nbuf -memory buffers passed inside the array -.I mb -into the memory file -.IR mmf . -The memory buffer structure is defined as : -.nf - - typedef struct s_mmbuffer { - char *ptr; - long size; - } mmbuffer_t; - -.fi -The -.I ptr -field is a pointer to the user data, whose size is specified inside the -.I size -structure field. The function returns the total number of bytes written -or a lower number if an error happened. - -.TP -.BI "void *xdl_mmfile_writeallocate(mmfile_t *" mmf ", long " size ");" - -The function request to allocate a write buffer of -.I size -bytes in the -.I mmf -memory file and returns the pointer to the allocated buffer. The user will -have the responsibility to store -.I size -bytes (no more, no less) inside the memory region pointed to by the returned pointer. -The files size will grow of -.I size -bytes as a consequence of this operation. The function will return -.B NULL -if an error happened. - -.TP -.BI "long xdl_mmfile_ptradd(mmfile_t *" mmf ", char *" ptr ", long " size ", unsigned long " flags ");" - -The function adds a user specified block to the end of the memory file -.IR mmf . -The block first byte is pointed to by -.I ptr -and its length is -.I size -bytes. The -.I flags -parameter can be used to specify attributes of the user memory block. Currently -supported attributes are: -.br -.IP -.B XDL_MMB_READONLY -Specify that the added memory block must be treated as read-only, and -every attempt to write on it should result in a failure of the memory file -writing functions. - -The purpose of this function is basically to avoid copying memory around, -by helping the library to not drain the CPU cache. The function returns -.I size -in case of success, or -1 in case of error. - -.TP -.BI "void *xdl_mmfile_first(mmfile_t *" mmf ", long *" size ");" - -The function is used to return the first block of the -.I mmf -memory file block chain. The -.I size -parameter will receive the size of the block, while the function will return -the pointer the the first byte of the block itself. The function returns -.B NULL -if the file is empty. - -.TP -.BI "void *xdl_mmfile_next(mmfile_t *" mmf ", long *" size ");" - -The function is used to return the next block of the -.I mmf -memory file block chain. The -.I size -parameter will receive the size of the block, while the function will return -the pointer the the first byte of the block itself. The function returns -.B NULL -if the current block is the last one of the chain. - -.TP -.BI "long xdl_mmfile_size(mmfile_t *" mmf ");" - -The function returns the size of the specified memory file -.IR mmf . - -.TP -.BI "int xdl_mmfile_cmp(mmfile_t *" mmf1 ", mmfile_t *" mmf2 ");" - -Request to compare two memory files -.IR mmf1 " and " mmf2 -and returns 0 if files are identical, or a value different from 0 if -files are different. - -.TP -.BI "int xdl_mmfile_compact(mmfile_t *" mmfo ", mmfile_t *" mmfc ", long " bsize ", unsigned long " flags ");" - -Request to create a compact version of the memory file -.I mmfo -into the (uninitialized) memory file -.IR mmfc . -The -.I bsize -parameter specify the requested block size and -.I flags -specify flags to be used to create the new -.I mmfc -memory file (see -.BR xdl_init_mmfile () -). The function returns 0 if succedded or -1 if an error happened. - -.TP -.BI "int xdl_diff(mmfile_t *" mmf1 ", mmfile_t *" mmf2 ", xpparam_t const *" xpp ", xdemitconf_t const *" xecfg ", xdemitcb_t *" ecb ");" - -Request to create the difference between the two text memory files -.IR mmf1 " and " mmf2 . -The -.I mmf1 -memory files is considered the "old" file while -.I mmf2 -is considered the "new" file. So the function will create a patch file -that once applied to -.I mmf1 -will give -.I mmf2 -as result. Files -.IR mmf1 " and " mmf2 -must be atomic from a line point of view (or, as an extreme, compact), that -means that a single test line cannot spread among different memory file blocks. -The -.I xpp -parameter is a pointer to a structure : -.nf - - typedef struct s_xpparam { - unsigned long flags; - } xpparam_t; - -.fi -that is used to specify parameters to be used by the file differential algorithm. -The -.I flags -field is a combination of the following flags : - -.IP -.B XDF_NEED_MINIMAL -Requires the minimal edit script to be found by the algorithm (may be slow). - -The -.I xecfg -parameter point to a structure : -.nf - - typedef struct s_xdemitconf { - long ctxlen; - } xdemitconf_t; - -.fi -that is used to configure the algorithm responsible of the creation the the -differential file from an edit script. The -.I ctxlen -field is used to specify the amount of context to be emitted inside the -differential file (the value 3 is suggested for normal operations). -The parameter -.I ecb -is a pointer to a structure : -.nf - - typedef struct s_xdemitcb { - void *priv; - int (*outf)(void *, mmbuffer_t *, int); - } xdemitcb_t; - -.fi -that is used by the differential file creation algorithm to emit the created -data. The -.I priv -field is an opaque pointer to a user specified data, while the -.I outf -field point to a callback function that is called internally to emit algorithm -generated data rappresenting the differential file. The first parameter of the -callback is the same -.I priv -field specified inside the -.B xdemitcb_t -structure. The second parameter point to an array of -.B mmbuffer_t -(see above for a definition of the structure) whose element count is specified -inside the last parameter of the callback itself. The callback will always be -called with entire records (lines) and never a record (line) will be emitted -using two different callback calls. This is important because if the called will -use another memory file to store the result, by creating the target memory file with -.B XDL_MMF_ATOMIC -will guarantee the "atomicity" of the memory file itself. -The function returns 0 if succeeded or -1 if an error occurred. - -.TP -.BI "int xdl_patch(mmfile_t *" mmf ", mmfile_t *" mmfp ", int " mode ", xdemitcb_t *" ecb ", xdemitcb_t *" rjecb ");" - -Request to patch the memory file -.I mmf -using the patch file stored in -.IR mmfp . -The -.I mmf -memory file -.B is not -changed during the operation and can be considered as read only. -The -.I mode -parameter can be one of the following values : -.IP -.B XDL_PATCH_NORMAL -Perform standard patching like if the patch memory file -.I mmfp -has been created using -.I mmf -as "old" file. -.IP -.B XDL_PATCH_REVERSE -Apply the reverse patch. That means that the -.I mmf -memory file has to be considered as if it was specified as "new" file during -the differential operation ( -.BR xdl_diff () -). The result of the operation will then be the file content that was used -as "old" file during the differential operation. - -The following flags can be specified (by or-ing them) to one of the above: -.IP -.B XDL_PATCH_IGNOREBSPACE -Ignore the whitespace at the beginning and the end of the line. - -The -.I ecb -will be used by the patch algorithm to create the result file while the -.I rjecb -will be used to emit all differential chunks that cannot be applied. -Like explained above, callbacks are always called with entire records to guarantee -atomicity of the resulting output. -The function returns 0 if succeeded without performing any fuzzy hunk detection, -a positive value if it secceeded with fuzzy hunk detection or -1 if an error occurred -during the patch operation. - -.TP -.BI "int xdl_merge3(mmfile_t *" mmfo ", mmfile_t *" mmf1 ", mmfile_t *" mmf2 ", xdemitcb_t *" ecb ", xdemitcb_t *" rjecb ");" - -Merges three files together. The -.I mmfo -file is the original one, while -.IR mmf1 " and " mmf2 -are two modified versions of -.IR mmfo . -The function works by creating a differential between -.IR mmfo " and " mmf2 -and by applying the resulting patch to -.IR mmf1 . -Because of this sequence, -.I mmf1 -changes will be privileged against the ones of -.IR mmf2 . -The -.I ecb -will be used by the patch algorithm to create the result file while the -.I rjecb -will be used to emit all differential chunks that cannot be applied. -Like explained above, callbacks are always called with entire records to guarantee -atomicity of the resulting output. -The function returns 0 if succeeded or -1 if an error occurred during the patch operation. - -.TP -.BI "int xdl_bdiff(mmfile_t *" mmf1 ", mmfile_t *" mmf2 ", bdiffparam_t const *" bdp ", xdemitcb_t *" ecb ");" - -Request to create the difference between the two text memory files -.IR mmf1 " and " mmf2 . -The -.I mmf1 -memory files is considered the "old" file while -.I mmf2 -is considered the "new" file. So the function will create a patch file -that once applied to -.I mmf1 -will give -.I mmf2 -as result. Files -.IR mmf1 " and " mmf2 -must be compact to make it easy and faster to perform the difference operation. -Functions are available to check for compactness ( -.BR xdl_mmfile_iscompact () -) and to make compact a non-compact file ( -.BR xdl_mmfile_compact () -). An example of how to create a compact memory file (described inside the test -subdirectory) is : -.nf - - int xdlt_load_mmfile(char const *fname, mmfile_t *mf, int binmode) { - char cc; - int fd; - long size, bsize; - char *blk; - - if (xdl_init_mmfile(mf, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) - return -1; - if ((fd = open(fname, O_RDONLY)) == -1) { - perror(fname); - xdl_free_mmfile(mf); - return -1; - } - if ((size = bsize = lseek(fd, 0, SEEK_END)) > 0 && !binmode) { - if (lseek(fd, -1, SEEK_END) != (off_t) -1 && - read(fd, &cc, 1) && cc != '\\n') - bsize++; - } - lseek(fd, 0, SEEK_SET); - if (!(blk = (char *) xdl_mmfile_writeallocate(mf, bsize))) { - xdl_free_mmfile(mf); - close(fd); - return -1; - } - if (read(fd, blk, (size_t) size) != (size_t) size) { - perror(fname); - xdl_free_mmfile(mf); - close(fd); - return -1; - } - close(fd); - if (bsize > size) - blk[size] = '\\n'; - return 0; - } - -.fi -The -.I bdp -parameter points to a structure : -.nf - - typedef struct s_bdiffparam { - long bsize; - } bdiffparam_t; - -.fi -that is used to pass information to the binary file differential algorithm. -The -.I bsize -parameter specify the size of the block that will be used to decompose -.I mmf1 -during the block classification phase of the algorithm (see MacDonald paper). -Suggested values go from 16 to 64, with a preferred power of two characteristic. -The -.I ecb -parameter is used to pass the emission callback to the algorithm responsible -of the output file creation. -The function returns 0 if succeede or -1 if an error is occurred. - -.TP -.BI "int xdl_bdiff_mb(mmbuffer_t *" mmb1 ", mmbuffer_t *" mmb2 ", bdiffparam_t const *" bdp ", xdemitcb_t *" ecb ");" - -Same as -.BR xdl_bdiff () -but it works on memory buffer directly. The -.BR xdl_bdiff () -is implemented internally with a -.BR xdl_bdiff_mb () -after having setup the two memory buffers from the passed memory files (that must be compact, -as described above). The memory buffer structure is defined as : -.nf - - typedef struct s_mmbuffer { - char *ptr; - long size; - } mmbuffer_t; - -.fi -An empty memory buffer is specified by setting the -.I ptr -member as -.B NULL -and the -.I size -member as zero. The reason of having this function is to avoid the memory file -preparation, that might involve copying memory from other sources. Using -the -.BR xdl_bdiff_mb (), -the caller can setup the two memory buffer by using, for example, -.BR mmap (2), -and hence avoiding unnecessary memory copies. The other parameters and the return value -of the function -.BR xdl_bdiff_mb () -are the same as the ones already described in -.BR xdl_bdiff (). - -.TP -.BI "int xdl_rabdiff(mmfile_t *" mmf1 ", mmfile_t *" mmf2 ", xdemitcb_t *" ecb ");" - -Request to create the difference between the two text memory files -.IR mmf1 " and " mmf2 -using the Rabin's polynomial fingerprinting algorithm. This algorithm typically -performs faster and produces smaller deltas, when compared to the XDelta-like one. -The -.I mmf1 -memory files is considered the "old" file while -.I mmf2 -is considered the "new" file. So the function will create a patch file -that once applied to -.I mmf1 -will give -.I mmf2 -as result. Files -.IR mmf1 " and " mmf2 -must be compact to make it easy and faster to perform the difference operation. -Functions are available to check for compactness ( -.BR xdl_mmfile_iscompact () -) and to make compact a non-compact file ( -.BR xdl_mmfile_compact () -). The -.I ecb -parameter is used to pass the emission callback to the algorithm responsible -of the output file creation. -The function returns 0 if succeede or -1 if an error is occurred. - -.TP -.BI "int xdl_rabdiff_mb(mmbuffer_t *" mmb1 ", mmbuffer_t *" mmb2 ", xdemitcb_t *" ecb ");" - -Same as -.BR xdl_rabdiff () -but it works on memory buffer directly. The memory buffer structure is defined as : -.nf - - typedef struct s_mmbuffer { - char *ptr; - long size; - } mmbuffer_t; - -.fi -An empty memory buffer is specified by setting the -.I ptr -member as -.B NULL -and the -.I size -member as zero. The reason of having this function is to avoid the memory file -preparation, that might involve copying memory from other sources. Using -the -.BR xdl_rabdiff_mb (), -the caller can setup the two memory buffer by using, for example, -.BR mmap (2), -and hence avoiding unnecessary memory copies. The other parameters and the return value -of the function -.BR xdl_rabdiff_mb () -are the same as the ones already described in -.BR xdl_rabdiff (). - -.TP -.BI "long xdl_bdiff_tgsize(mmfile_t *" mmfp ");" - -Given a binary memory file patch, it returns the size that the result file -will have once the patch is applied to the target file. It can be used to -pre-allocate (or write-allocate) a memory block to store the patch result -so that a compact file will be available at the end of the operation. The -function returns the requested size, or -1 if an error occurred during the operation. - -.TP -.BI "int xdl_bpatch(mmfile_t *" mmf ", mmfile_t *" mmfp ", xdemitcb_t *" ecb ");" - -Request to patch the binary memory file -.I mmf -using the binary patch file stored in -.IR mmfp . -The -.I mmf -memory file -.B is not -changed during the operation and can be considered as read only. The binary -patch algorithm has no notion of context, so the patch operation cannot be -partial (either success or failure). The -.I ecb -parameter contain the callabck (see above for description) used by the binary -patch algorithm to emit the result file. The function returns 0 if succeeded -or -1 if an error occurred during the patch operation. - -.SH SEE ALSO -Two papers drove the content of this library and these are : -.br -.IP o -.IR "File System Support for Delta Compression" " by " "Joshua P. MacDonald" -.BR http://www.xmailserver.org/xdfs.pdf -.br -.IP o -.IR "Fingerprinting by Random Polynomials" " by " "Michael O. Rabin" -.BR http://www.xmailserver.org/rabin.pdf -.br -.IP o -.IR "An O(ND) Difference Algorithm and Its Variations" " by " "Eugene W. Myers" -.BR http://www.xmailserver.org/diff2.pdf -.PP - -Also usefull information can be looked up inside the -.B diffutil -GNU package : - -.BR http://www.gnu.org/software/diffutils/diffutils.html - -.SH LICENSE -This library is free software; you can redistribute it and/or -modify it under the terms of the GNU Lesser General Public -License as published by the Free Software Foundation; either -version 2.1 of the License, or (at your option) any later version. -A copy of the license is available at : - -.BR http://www.gnu.org/copyleft/lesser.html - -.SH AUTHOR -Developed by Davide Libenzi -.RB < davidel@xmailserver.org > - -.SH AVAILABILITY -The latest version of -.B LibXDiff -can be found at : - -.BR http://www.xmailserver.org/xdiff-lib.html - -.SH BUGS -There are no known bugs. Bug reports and comments to Davide Libenzi -.RB < davidel@xmailserver.org > - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.html b/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.html deleted file mode 100644 index 5f38f3be..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/man/xdiff.html +++ /dev/null @@ -1,1109 +0,0 @@ - -Man page of LibXDiff - -

LibXDiff

-Section: File Differential Library (3)
Updated: 0.23
Index -Return to Main Contents
- -  -

NAME

- -

-xdl_set_allocator, xdl_malloc, xdl_free, xdl_realloc, xdl_init_mmfile, xdl_free_mmfile, -xdl_mmfile_iscompact, xdl_seek_mmfile, xdl_read_mmfile, xdl_write_mmfile, xdl_writem_mmfile, -xdl_mmfile_writeallocate, xdl_mmfile_ptradd, xdl_mmfile_first, xdl_mmfile_next, xdl_mmfile_size, xdl_mmfile_cmp, -xdl_mmfile_compact, xdl_diff, xdl_patch, xdl_merge3, xdl_bdiff_mb, xdl_bdiff, xdl_rabdiff_mb, xdl_rabdiff, -xdl_bdiff_tgsize, xdl_bpatch - File Differential Library support functions -

-  -

SYNOPSIS

- -
-#include <xdiff.h>
-
-int xdl_set_allocator(memallocator_t const *malt);
-void *xdl_malloc(unsigned int size);
-void xdl_free(void *ptr);
-void *xdl_realloc(void *ptr, unsigned int nsize);
-int xdl_init_mmfile(mmfile_t *mmf, long bsize, unsigned long flags);
-void xdl_free_mmfile(mmfile_t *mmf);
-int xdl_mmfile_iscompact(mmfile_t *mmf);
-int xdl_seek_mmfile(mmfile_t *mmf, long off);
-long xdl_read_mmfile(mmfile_t *mmf, void *data, long size);
-long xdl_write_mmfile(mmfile_t *mmf, void const *data, long size);
-long xdl_writem_mmfile(mmfile_t *mmf, mmbuffer_t *mb, int nbuf);
-void *xdl_mmfile_writeallocate(mmfile_t *mmf, long size);
-long xdl_mmfile_ptradd(mmfile_t *mmf, char *ptr, long size, unsigned long flags);
-void *xdl_mmfile_first(mmfile_t *mmf, long *size);
-void *xdl_mmfile_next(mmfile_t *mmf, long *size);
-long xdl_mmfile_size(mmfile_t *mmf);
-int xdl_mmfile_cmp(mmfile_t *mmf1, mmfile_t *mmf2);
-int xdl_mmfile_compact(mmfile_t *mmfo, mmfile_t *mmfc, long bsize, unsigned long flags);
-int xdl_diff(mmfile_t *mmf1, mmfile_t *mmf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb);
-int xdl_patch(mmfile_t *mmf, mmfile_t *mmfp, int mode, xdemitcb_t *ecb, xdemitcb_t *rjecb);
-int xdl_merge3(mmfile_t *mmfo, mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb, xdemitcb_t *rjecb);
-int xdl_bdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, bdiffparam_t const *bdp, xdemitcb_t *ecb);
-int xdl_bdiff(mmfile_t *mmf1, mmfile_t *mmf2, bdiffparam_t const *bdp, xdemitcb_t *ecb);
-int xdl_rabdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, xdemitcb_t *ecb);
-int xdl_rabdiff(mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb);
-long xdl_bdiff_tgsize(mmfile_t *mmfp);
-int xdl_bpatch(mmfile_t *mmf, mmfile_t *mmfp, xdemitcb_t *ecb);
-
-
  -

DESCRIPTION

- -The -LibXDiff - -library implements basic and yet complete functionalities to create -file differences/patches to both binary and text files. The library -uses memory files as file abstraction to achieve both performance and -portability. For binary files, -LibXDiff - -implements both (with some modification) the algorithm described in -File System Support for Delta Compression by Joshua P. MacDonald, - -and the method described in -Fingerprinting by Random Polynomials by Michael O. Rabin. - -While for text files it follows directives described in -An O(ND) Difference Algorithm and Its Variations by Eugene W. Myers. - -Memory files used by the library are basically a collection of buffers -that store the file content. There are two different requirements for memory -files when passed to diff/patch functions. Text files for diff/patch functions -require that a single line do not have to spawn across two different memory -file blocks. Binary diff/patch functions require memory files to be compact. -A compact memory files is a file whose content is stored inside a single block. -Functionalities inside the library are available to satisfy these rules. -Using the -XDL_MMF_ATOMIC - -memory file flag it is possible to make writes to not split the written -record across different blocks, while the functions -xdl_mmfile_iscompact() - -, -xdl_mmfile_compact() - -and -xdl_mmfile_writeallocate() - -are usefull to test if the file is compact and to create a compacted version -of the file itself. The text file differential output uses the raw unified output -format, by omitting the file header since the result is always relative to -a single compare operation (between two files). The output format of the binary -patch file is proprietary (and binary) and it is basically a collection of -copy and insert commands, like described inside the MacDonald paper. -

-

-  -

Functions

- -The following functions are defined: -
-
int xdl_set_allocator(memallocator_t const *malt); - -
-

-The -LibXDiff - -library enable the user to set its own memory allocator, that will be used -for all the following memory requests. The allocator must be set before -to start calling the -LibXDiff - -library with a call to -xdl_set_allocator(). - -The memory allocator structure contains the following members: -

-
-        typedef struct s_memallocator {
-                void *priv;
-                void *(*malloc)(void *priv, unsigned int size);
-                void (*free)(void *priv, void *ptr);
-                void *(*realloc)(void *priv, void *ptr, unsigned int nsize);
-        } memallocator_t;
-
-
- -The -malloc() - -function pointer will be used by -LibXDiff - -to request a memory block of -size - -bytes. The -free() - -function pointer will be called to free a previously allocated block -ptr - -, while the -realloc() - -will be used to resize the -ptr - -to a new -nsize - -size in bytes. The -priv - -structure member will be passed to the -malloc(),free(),realloc() - -functions as first parameter. The -LibXDiff - -user must call -xdl_set_allocator() - -before starting using the library, otherwise -LibXDiff - -functions will fail due to the lack of memory allocation support. -A typical initialization sequence for -POSIX - -systems will use the standard -malloc(3), - -free(3), - -realloc(3) - -and will look like: -
-
-        void *wrap_malloc(void *priv, unsigned int size) {
-                return malloc(size);
-        }
-
-        void wrap_free(void *priv, void *ptr) {
-                free(ptr);
-        }
-
-        void *wrap_realloc(void *priv, void *ptr, unsigned int size) {
-                return realloc(ptr, size);
-        }
-
-        void my_init_xdiff(void) {
-                memallocator_t malt;
-
-                malt.priv = NULL;
-                malt.malloc = wrap_malloc;
-                malt.free = wrap_free;
-                malt.realloc = wrap_realloc;
-                xdl_set_allocator(&malt);
-        }
-
-
- -

-

void *xdl_malloc(unsigned int size); - -
-

-Allocates a memory block of -size - -bytes using the -LibXDiff - -memory allocator. The user can specify its own allocator using the -xdl_set_allocator() - -function. The -xdl_malloc() - -return a pointer to the newly allocated block, or -NULL - -in case of failure. -

-

void xdl_free(void *ptr); - -
-

-Free a previously allocated memory block pointed by -ptr. - -The -ptr - -block must has been allocated using either -xdl_malloc() - -or -xdl_realloc(). - -

-

void *xdl_realloc(void *ptr, unsigned int nsize); - -
-

-Resizes the memory block pointed by -ptr - -to a new size -nsize. - -Return the resized block if successful, or -NULL - -in case the reallocation fails. After a successful reallocation, the old -ptr - -block is to be considered no more valid. -

-

int xdl_init_mmfile(mmfile_t *mmf, long bsize, unsigned long flags); - -
-

-Initialize the memory file -mmf - -by requiring an internal block size of -bsize. - -The -flags - -parameter is a combination of the following flags : -
- -

-XDL_MMF_ATOMIC - -Writes on the memory file will be atomic. That is, the data will not be split -on two or more different blocks. -

-Once an -xdl_init_mmfile() - -succeeded, a matching -xdl_free_mmfile() - -must be called when the user has done using the memory file, otherwise serious -memory leaks will happen. -The function return 0 if succeed or -1 if an error is encountered. -

-

void xdl_free_mmfile(mmfile_t *mmf); - -
-

-Free all the data associated with the -mmf - -memory file. -

-

int xdl_mmfile_iscompact(mmfile_t *mmf); - -
-

-Returns an integer different from 0 if the -mmf - -memory file is compact, 0 otherwise. A compact memory file is one that have -the whole content stored inside a single block. -

-

int xdl_seek_mmfile(mmfile_t *mmf, long off); - -
-

-Set the current data pointer of the memory file -mmf - -to the specified offset -off - -from the beginning of the file itself. Returns 0 if successful or -1 if an error -happened. -

-

long xdl_read_mmfile(mmfile_t *mmf, void *data, long size); - -
-

-Request to read -size - -bytes from the memory file -mmf - -by storing the data inside the -data - -buffer. Returns the number of bytes read into the -data - -buffer. The amount of data read can be lower than the specified -size. - -The function returns -1 if an error happened. -

-

long xdl_write_mmfile(mmfile_t *mmf, void const *data, long size); - -
-

-Request to write -size - -bytes from the specified buffer -data - -into the memory file -mmf. - -If the memory file has been created using the -XDL_MMF_ATOMIC - -flag, the write request will not be split across different blocks. -Note that all write operations done on memory files do append data at the end -the file, and writes in the middle of it are allowed. This is because the library -memory file abstraction does not need this functionality to be available. -The function returns the number of bytes written or a number lower than -size - -if an error happened. -

-

long xdl_writem_mmfile(mmfile_t *mmf, mmbuffer_t *mb, int nbuf); - -
-

-Request to sequentially write -nbuf - -memory buffers passed inside the array -mb - -into the memory file -mmf. - -The memory buffer structure is defined as : -

-
-        typedef struct s_mmbuffer {
-                char *ptr;
-                long size;
-        } mmbuffer_t;
-
-
- -The -ptr - -field is a pointer to the user data, whose size is specified inside the -size - -structure field. The function returns the total number of bytes written -or a lower number if an error happened. -

-

void *xdl_mmfile_writeallocate(mmfile_t *mmf, long size); - -
-

-The function request to allocate a write buffer of -size - -bytes in the -mmf - -memory file and returns the pointer to the allocated buffer. The user will -have the responsibility to store -size - -bytes (no more, no less) inside the memory region pointed to by the returned pointer. -The files size will grow of -size - -bytes as a consequence of this operation. The function will return -NULL - -if an error happened. -

-

long xdl_mmfile_ptradd(mmfile_t *mmf, char *ptr, long size, unsigned long flags); - -
-

-The function adds a user specified block to the end of the memory file -mmf. - -The block first byte is pointed to by -ptr - -and its length is -size - -bytes. The -flags - -parameter can be used to specify attributes of the user memory block. Currently -supported attributes are: -
- -

-XDL_MMB_READONLY - -Specify that the added memory block must be treated as read-only, and -every attempt to write on it should result in a failure of the memory file -writing functions. -

-The purpose of this function is basically to avoid copying memory around, -by helping the library to not drain the CPU cache. The function returns -size - -in case of success, or -1 in case of error. -

-

void *xdl_mmfile_first(mmfile_t *mmf, long *size); - -
-

-The function is used to return the first block of the -mmf - -memory file block chain. The -size - -parameter will receive the size of the block, while the function will return -the pointer the the first byte of the block itself. The function returns -NULL - -if the file is empty. -

-

void *xdl_mmfile_next(mmfile_t *mmf, long *size); - -
-

-The function is used to return the next block of the -mmf - -memory file block chain. The -size - -parameter will receive the size of the block, while the function will return -the pointer the the first byte of the block itself. The function returns -NULL - -if the current block is the last one of the chain. -

-

long xdl_mmfile_size(mmfile_t *mmf); - -
-

-The function returns the size of the specified memory file -mmf. - -

-

int xdl_mmfile_cmp(mmfile_t *mmf1, mmfile_t *mmf2); - -
-

-Request to compare two memory files -mmf1 and mmf2 - -and returns 0 if files are identical, or a value different from 0 if -files are different. -

-

int xdl_mmfile_compact(mmfile_t *mmfo, mmfile_t *mmfc, long bsize, unsigned long flags); - -
-

-Request to create a compact version of the memory file -mmfo - -into the (uninitialized) memory file -mmfc. - -The -bsize - -parameter specify the requested block size and -flags - -specify flags to be used to create the new -mmfc - -memory file (see -xdl_init_mmfile() - -). The function returns 0 if succedded or -1 if an error happened. -

-

int xdl_diff(mmfile_t *mmf1, mmfile_t *mmf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb); - -
-

-Request to create the difference between the two text memory files -mmf1 and mmf2. - -The -mmf1 - -memory files is considered the "old" file while -mmf2 - -is considered the "new" file. So the function will create a patch file -that once applied to -mmf1 - -will give -mmf2 - -as result. Files -mmf1 and mmf2 - -must be atomic from a line point of view (or, as an extreme, compact), that -means that a single test line cannot spread among different memory file blocks. -The -xpp - -parameter is a pointer to a structure : -

-
-        typedef struct s_xpparam {
-                unsigned long flags;
-        } xpparam_t;
-
-
- -that is used to specify parameters to be used by the file differential algorithm. -The -flags - -field is a combination of the following flags : -

-

-XDF_NEED_MINIMAL - -Requires the minimal edit script to be found by the algorithm (may be slow). -

-The -xecfg - -parameter point to a structure : -

-
-        typedef struct s_xdemitconf {
-                long ctxlen;
-        } xdemitconf_t;
-
-
- -that is used to configure the algorithm responsible of the creation the the -differential file from an edit script. The -ctxlen - -field is used to specify the amount of context to be emitted inside the -differential file (the value 3 is suggested for normal operations). -The parameter -ecb - -is a pointer to a structure : -
-
-        typedef struct s_xdemitcb {
-                void *priv;
-                int (*outf)(void *, mmbuffer_t *, int);
-        } xdemitcb_t;
-
-
- -that is used by the differential file creation algorithm to emit the created -data. The -priv - -field is an opaque pointer to a user specified data, while the -outf - -field point to a callback function that is called internally to emit algorithm -generated data rappresenting the differential file. The first parameter of the -callback is the same -priv - -field specified inside the -xdemitcb_t - -structure. The second parameter point to an array of -mmbuffer_t - -(see above for a definition of the structure) whose element count is specified -inside the last parameter of the callback itself. The callback will always be -called with entire records (lines) and never a record (line) will be emitted -using two different callback calls. This is important because if the called will -use another memory file to store the result, by creating the target memory file with -XDL_MMF_ATOMIC - -will guarantee the "atomicity" of the memory file itself. -The function returns 0 if succeeded or -1 if an error occurred. -

-

int xdl_patch(mmfile_t *mmf, mmfile_t *mmfp, int mode, xdemitcb_t *ecb, xdemitcb_t *rjecb); - -
-

-Request to patch the memory file -mmf - -using the patch file stored in -mmfp. - -The -mmf - -memory file -is not - -changed during the operation and can be considered as read only. -The -mode - -parameter can be one of the following values : -

-XDL_PATCH_NORMAL - -Perform standard patching like if the patch memory file -mmfp - -has been created using -mmf - -as "old" file. -
-XDL_PATCH_REVERSE - -Apply the reverse patch. That means that the -mmf - -memory file has to be considered as if it was specified as "new" file during -the differential operation ( -xdl_diff() - -). The result of the operation will then be the file content that was used -as "old" file during the differential operation. -

-The following flags can be specified (by or-ing them) to one of the above: -

-XDL_PATCH_IGNOREBSPACE - -Ignore the whitespace at the beginning and the end of the line. -

-The -ecb - -will be used by the patch algorithm to create the result file while the -rjecb - -will be used to emit all differential chunks that cannot be applied. -Like explained above, callbacks are always called with entire records to guarantee -atomicity of the resulting output. -The function returns 0 if succeeded without performing any fuzzy hunk detection, -a positive value if it secceeded with fuzzy hunk detection or -1 if an error occurred -during the patch operation. -

-

int xdl_merge3(mmfile_t *mmfo, mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb, xdemitcb_t *rjecb); - -
-

-Merges three files together. The -mmfo - -file is the original one, while -mmf1 and mmf2 - -are two modified versions of -mmfo. - -The function works by creating a differential between -mmfo and mmf2 - -and by applying the resulting patch to -mmf1. - -Because of this sequence, -mmf1 - -changes will be privileged against the ones of -mmf2. - -The -ecb - -will be used by the patch algorithm to create the result file while the -rjecb - -will be used to emit all differential chunks that cannot be applied. -Like explained above, callbacks are always called with entire records to guarantee -atomicity of the resulting output. -The function returns 0 if succeeded or -1 if an error occurred during the patch operation. -

-

int xdl_bdiff(mmfile_t *mmf1, mmfile_t *mmf2, bdiffparam_t const *bdp, xdemitcb_t *ecb); - -
-

-Request to create the difference between the two text memory files -mmf1 and mmf2. - -The -mmf1 - -memory files is considered the "old" file while -mmf2 - -is considered the "new" file. So the function will create a patch file -that once applied to -mmf1 - -will give -mmf2 - -as result. Files -mmf1 and mmf2 - -must be compact to make it easy and faster to perform the difference operation. -Functions are available to check for compactness ( -xdl_mmfile_iscompact() - -) and to make compact a non-compact file ( -xdl_mmfile_compact() - -). An example of how to create a compact memory file (described inside the test -subdirectory) is : -

-
-        int xdlt_load_mmfile(char const *fname, mmfile_t *mf, int binmode) {
-                char cc;
-                int fd;
-                long size, bsize;
-                char *blk;
-
-                if (xdl_init_mmfile(mf, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0)
-                        return -1;
-                if ((fd = open(fname, O_RDONLY)) == -1) {
-                        perror(fname);
-                        xdl_free_mmfile(mf);
-                        return -1;
-                }
-                if ((size = bsize = lseek(fd, 0, SEEK_END)) > 0 && !binmode) {
-                        if (lseek(fd, -1, SEEK_END) != (off_t) -1 &&
-                            read(fd, &cc, 1) && cc != '\n')
-                                bsize++;
-                }
-                lseek(fd, 0, SEEK_SET);
-                if (!(blk = (char *) xdl_mmfile_writeallocate(mf, bsize))) {
-                        xdl_free_mmfile(mf);
-                        close(fd);
-                        return -1;
-                }
-                if (read(fd, blk, (size_t) size) != (size_t) size) {
-                        perror(fname);
-                        xdl_free_mmfile(mf);
-                        close(fd);
-                        return -1;
-                }
-                close(fd);
-                if (bsize > size)
-                        blk[size] = '\n';
-                return 0;
-        }
-
-
- -The -bdp - -parameter points to a structure : -
-
-        typedef struct s_bdiffparam {
-                long bsize;
-        } bdiffparam_t;
-
-
- -that is used to pass information to the binary file differential algorithm. -The -bsize - -parameter specify the size of the block that will be used to decompose -mmf1 - -during the block classification phase of the algorithm (see MacDonald paper). -Suggested values go from 16 to 64, with a preferred power of two characteristic. -The -ecb - -parameter is used to pass the emission callback to the algorithm responsible -of the output file creation. -The function returns 0 if succeede or -1 if an error is occurred. -

-

int xdl_bdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, bdiffparam_t const *bdp, xdemitcb_t *ecb); - -
-

-Same as -xdl_bdiff() - -but it works on memory buffer directly. The -xdl_bdiff() - -is implemented internally with a -xdl_bdiff_mb() - -after having setup the two memory buffers from the passed memory files (that must be compact, -as described above). The memory buffer structure is defined as : -

-
-        typedef struct s_mmbuffer {
-                char *ptr;
-                long size;
-        } mmbuffer_t;
-
-
- -An empty memory buffer is specified by setting the -ptr - -member as -NULL - -and the -size - -member as zero. The reason of having this function is to avoid the memory file -preparation, that might involve copying memory from other sources. Using -the -xdl_bdiff_mb(), - -the caller can setup the two memory buffer by using, for example, -mmap(2), - -and hence avoiding unnecessary memory copies. The other parameters and the return value -of the function -xdl_bdiff_mb() - -are the same as the ones already described in -xdl_bdiff(). - -

-

int xdl_rabdiff(mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb); - -
-

-Request to create the difference between the two text memory files -mmf1 and mmf2 - -using the Rabin's polynomial fingerprinting algorithm. This algorithm typically -performs faster and produces smaller deltas, when compared to the XDelta-like one. -The -mmf1 - -memory files is considered the "old" file while -mmf2 - -is considered the "new" file. So the function will create a patch file -that once applied to -mmf1 - -will give -mmf2 - -as result. Files -mmf1 and mmf2 - -must be compact to make it easy and faster to perform the difference operation. -Functions are available to check for compactness ( -xdl_mmfile_iscompact() - -) and to make compact a non-compact file ( -xdl_mmfile_compact() - -). The -ecb - -parameter is used to pass the emission callback to the algorithm responsible -of the output file creation. -The function returns 0 if succeede or -1 if an error is occurred. -

-

int xdl_rabdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, xdemitcb_t *ecb); - -
-

-Same as -xdl_rabdiff() - -but it works on memory buffer directly. The memory buffer structure is defined as : -

-
-        typedef struct s_mmbuffer {
-                char *ptr;
-                long size;
-        } mmbuffer_t;
-
-
- -An empty memory buffer is specified by setting the -ptr - -member as -NULL - -and the -size - -member as zero. The reason of having this function is to avoid the memory file -preparation, that might involve copying memory from other sources. Using -the -xdl_rabdiff_mb(), - -the caller can setup the two memory buffer by using, for example, -mmap(2), - -and hence avoiding unnecessary memory copies. The other parameters and the return value -of the function -xdl_rabdiff_mb() - -are the same as the ones already described in -xdl_rabdiff(). - -

-

long xdl_bdiff_tgsize(mmfile_t *mmfp); - -
-

-Given a binary memory file patch, it returns the size that the result file -will have once the patch is applied to the target file. It can be used to -pre-allocate (or write-allocate) a memory block to store the patch result -so that a compact file will be available at the end of the operation. The -function returns the requested size, or -1 if an error occurred during the operation. -

-

int xdl_bpatch(mmfile_t *mmf, mmfile_t *mmfp, xdemitcb_t *ecb); - -
-

-Request to patch the binary memory file -mmf - -using the binary patch file stored in -mmfp. - -The -mmf - -memory file -is not - -changed during the operation and can be considered as read only. The binary -patch algorithm has no notion of context, so the patch operation cannot be -partial (either success or failure). The -ecb - -parameter contain the callabck (see above for description) used by the binary -patch algorithm to emit the result file. The function returns 0 if succeeded -or -1 if an error occurred during the patch operation. -

-

-  -

SEE ALSO

- -Two papers drove the content of this library and these are : -
- -
-
o
-File System Support for Delta Compression by Joshua P. MacDonald - -http://www.xmailserver.org/xdfs.pdf - -
- -
o
-Fingerprinting by Random Polynomials by Michael O. Rabin - -http://www.xmailserver.org/rabin.pdf - -
- -
o
-An O(ND) Difference Algorithm and Its Variations by Eugene W. Myers - -http://www.xmailserver.org/diff2.pdf - -
-

- -

-Also usefull information can be looked up inside the -diffutil - -GNU package : -

-http://www.gnu.org/software/diffutils/diffutils.html - -

-  -

LICENSE

- -This library is free software; you can redistribute it and/or -modify it under the terms of the GNU Lesser General Public -License as published by the Free Software Foundation; either -version 2.1 of the License, or (at your option) any later version. -A copy of the license is available at : -

-http://www.gnu.org/copyleft/lesser.html - -

-  -

AUTHOR

- -Developed by Davide Libenzi -<davidel@xmailserver.org> - -

-  -

AVAILABILITY

- -The latest version of -LibXDiff - -can be found at : -

-http://www.xmailserver.org/xdiff-lib.html - -

-  -

BUGS

- -There are no known bugs. Bug reports and comments to Davide Libenzi -<davidel@xmailserver.org> - -

-

- -

- 

Index

-
-
NAME
-
SYNOPSIS
-
DESCRIPTION
-
-
Functions
-
-
SEE ALSO
-
LICENSE
-
AUTHOR
-
AVAILABILITY
-
BUGS
-
-
-This document was created by -man2html, -using the manual pages.
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bsize, unsigned long flags); - void xdl_free_mmfile(mmfile_t *mmf); - int xdl_mmfile_iscompact(mmfile_t *mmf); - int xdl_seek_mmfile(mmfile_t *mmf, long off); - long xdl_read_mmfile(mmfile_t *mmf, void *data, long size); - long xdl_write_mmfile(mmfile_t *mmf, void const *data, long size); - long xdl_writem_mmfile(mmfile_t *mmf, mmbuffer_t *mb, int nbuf); - void *xdl_mmfile_writeallocate(mmfile_t *mmf, long size); - long xdl_mmfile_ptradd(mmfile_t *mmf, char *ptr, long size, unsigned long flags); - void *xdl_mmfile_first(mmfile_t *mmf, long *size); - void *xdl_mmfile_next(mmfile_t *mmf, long *size); - long xdl_mmfile_size(mmfile_t *mmf); - int xdl_mmfile_cmp(mmfile_t *mmf1, mmfile_t *mmf2); - int xdl_mmfile_compact(mmfile_t *mmfo, mmfile_t *mmfc, long bsize, unsigned long flags); - int xdl_diff(mmfile_t *mmf1, mmfile_t *mmf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb); - int xdl_patch(mmfile_t *mmf, mmfile_t *mmfp, int mode, xdemitcb_t *ecb, xdemitcb_t *rjecb); - int xdl_merge3(mmfile_t *mmfo, mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb, xdemitcb_t *rjecb); - int xdl_bdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, bdiffparam_t const *bdp, xdemitcb_t *ecb); - int xdl_bdiff(mmfile_t *mmf1, mmfile_t *mmf2, bdiffparam_t const *bdp, xdemitcb_t *ecb); - int xdl_rabdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, xdemitcb_t *ecb); - int xdl_rabdiff(mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb); - long xdl_bdiff_tgsize(mmfile_t *mmfp); - int xdl_bpatch(mmfile_t *mmf, mmfile_t *mmfp, xdemitcb_t *ecb); - - -DESCRIPTION - The LibXDiff library implements basic and yet complete functionalities - to create file differences/patches to both binary and text files. The - library uses memory files as file abstraction to achieve both perfor- - mance and portability. For binary files, LibXDiff implements both (with - some modification) the algorithm described in File System Support for - Delta Compression by Joshua P. MacDonald, and the method described in - Fingerprinting by Random Polynomials by Michael O. Rabin. While for - text files it follows directives described in An O(ND) Difference Algo- - rithm and Its Variations by Eugene W. Myers. Memory files used by the - library are basically a collection of buffers that store the file con- - tent. There are two different requirements for memory files when passed - to diff/patch functions. Text files for diff/patch functions require - that a single line do not have to spawn across two different memory - file blocks. Binary diff/patch functions require memory files to be - compact. A compact memory files is a file whose content is stored - inside a single block. Functionalities inside the library are avail- - able to satisfy these rules. Using the XDL_MMF_ATOMIC memory file flag - it is possible to make writes to not split the written record across - different blocks, while the functions xdl_mmfile_iscompact() , - xdl_mmfile_compact() and xdl_mmfile_writeallocate() are usefull to test - if the file is compact and to create a compacted version of the file - itself. The text file differential output uses the raw unified output - format, by omitting the file header since the result is always relative - to a single compare operation (between two files). The output format of - the binary patch file is proprietary (and binary) and it is basically a - collection of copy and insert commands, like described inside the Mac- - Donald paper. - - - - Functions - The following functions are defined: - - int xdl_set_allocator(memallocator_t const *malt); - - The LibXDiff library enable the user to set its own memory allo- - cator, that will be used for all the following memory requests. - The allocator must be set before to start calling the LibXDiff - library with a call to xdl_set_allocator(). The memory alloca- - tor structure contains the following members: - - typedef struct s_memallocator { - void *priv; - void *(*malloc)(void *priv, unsigned int size); - void (*free)(void *priv, void *ptr); - void *(*realloc)(void *priv, void *ptr, unsigned int nsize); - } memallocator_t; - - The malloc() function pointer will be used by LibXDiff to - request a memory block of size bytes. The free() function - pointer will be called to free a previously allocated block ptr - , while the realloc() will be used to resize the ptr to a new - nsize size in bytes. The priv structure member will be passed to - the malloc(),free(),realloc() functions as first parameter. The - LibXDiff user must call xdl_set_allocator() before starting - using the library, otherwise LibXDiff functions will fail due to - the lack of memory allocation support. A typical initialization - sequence for POSIX systems will use the standard malloc(3), - free(3), realloc(3) and will look like: - - void *wrap_malloc(void *priv, unsigned int size) { - return malloc(size); - } - - void wrap_free(void *priv, void *ptr) { - free(ptr); - } - - void *wrap_realloc(void *priv, void *ptr, unsigned int size) { - return realloc(ptr, size); - } - - void my_init_xdiff(void) { - memallocator_t malt; - - malt.priv = NULL; - malt.malloc = wrap_malloc; - malt.free = wrap_free; - malt.realloc = wrap_realloc; - xdl_set_allocator(&malt); - } - - - - void *xdl_malloc(unsigned int size); - - Allocates a memory block of size bytes using the LibXDiff memory - allocator. The user can specify its own allocator using the - xdl_set_allocator() function. The xdl_malloc() return a pointer - to the newly allocated block, or NULL in case of failure. - - - void xdl_free(void *ptr); - - Free a previously allocated memory block pointed by ptr. The - ptr block must has been allocated using either xdl_malloc() or - xdl_realloc(). - - - void *xdl_realloc(void *ptr, unsigned int nsize); - - Resizes the memory block pointed by ptr to a new size nsize. - Return the resized block if successful, or NULL in case the - reallocation fails. After a successful reallocation, the old ptr - block is to be considered no more valid. - - - int xdl_init_mmfile(mmfile_t *mmf, long bsize, unsigned long flags); - - Initialize the memory file mmf by requiring an internal block - size of bsize. The flags parameter is a combination of the fol- - lowing flags : - - XDL_MMF_ATOMIC Writes on the memory file will be atomic. That - is, the data will not be split on two or more different blocks. - - Once an xdl_init_mmfile() succeeded, a matching - xdl_free_mmfile() must be called when the user has done using - the memory file, otherwise serious memory leaks will happen. - The function return 0 if succeed or -1 if an error is encoun- - tered. - - - void xdl_free_mmfile(mmfile_t *mmf); - - Free all the data associated with the mmf memory file. - - - int xdl_mmfile_iscompact(mmfile_t *mmf); - - Returns an integer different from 0 if the mmf memory file is - compact, 0 otherwise. A compact memory file is one that have the - whole content stored inside a single block. - - - int xdl_seek_mmfile(mmfile_t *mmf, long off); - - Set the current data pointer of the memory file mmf to the spec- - ified offset off from the beginning of the file itself. Returns - 0 if successful or -1 if an error happened. - - - long xdl_read_mmfile(mmfile_t *mmf, void *data, long size); - - Request to read size bytes from the memory file mmf by storing - the data inside the data buffer. Returns the number of bytes - read into the data buffer. The amount of data read can be lower - than the specified size. The function returns -1 if an error - happened. - - - long xdl_write_mmfile(mmfile_t *mmf, void const *data, long size); - - Request to write size bytes from the specified buffer data into - the memory file mmf. If the memory file has been created using - the XDL_MMF_ATOMIC flag, the write request will not be split - across different blocks. Note that all write operations done on - memory files do append data at the end the file, and writes in - the middle of it are allowed. This is because the library memory - file abstraction does not need this functionality to be avail- - able. The function returns the number of bytes written or a - number lower than size if an error happened. - - - long xdl_writem_mmfile(mmfile_t *mmf, mmbuffer_t *mb, int nbuf); - - Request to sequentially write nbuf memory buffers passed inside - the array mb into the memory file mmf. The memory buffer struc- - ture is defined as : - - typedef struct s_mmbuffer { - char *ptr; - long size; - } mmbuffer_t; - - The ptr field is a pointer to the user data, whose size is spec- - ified inside the size structure field. The function returns the - total number of bytes written or a lower number if an error hap- - pened. - - - void *xdl_mmfile_writeallocate(mmfile_t *mmf, long size); - - The function request to allocate a write buffer of size bytes in - the mmf memory file and returns the pointer to the allocated - buffer. The user will have the responsibility to store size - bytes (no more, no less) inside the memory region pointed to by - the returned pointer. The files size will grow of size bytes as - a consequence of this operation. The function will return NULL - if an error happened. - - - long xdl_mmfile_ptradd(mmfile_t *mmf, char *ptr, long size, unsigned - long flags); - - The function adds a user specified block to the end of the mem- - ory file mmf. The block first byte is pointed to by ptr and its - length is size bytes. The flags parameter can be used to specify - attributes of the user memory block. Currently supported - attributes are: - - XDL_MMB_READONLY Specify that the added memory block must be - treated as read-only, and every attempt to write on it should - result in a failure of the memory file writing functions. - - The purpose of this function is basically to avoid copying mem- - ory around, by helping the library to not drain the CPU cache. - The function returns size in case of success, or -1 in case of - error. - - - void *xdl_mmfile_first(mmfile_t *mmf, long *size); - - The function is used to return the first block of the mmf memory - file block chain. The size parameter will receive the size of - the block, while the function will return the pointer the the - first byte of the block itself. The function returns NULL if the - file is empty. - - - void *xdl_mmfile_next(mmfile_t *mmf, long *size); - - The function is used to return the next block of the mmf memory - file block chain. The size parameter will receive the size of - the block, while the function will return the pointer the the - first byte of the block itself. The function returns NULL if the - current block is the last one of the chain. - - - long xdl_mmfile_size(mmfile_t *mmf); - - The function returns the size of the specified memory file mmf. - - - int xdl_mmfile_cmp(mmfile_t *mmf1, mmfile_t *mmf2); - - Request to compare two memory files mmf1 and mmf2 and returns 0 - if files are identical, or a value different from 0 if files are - different. - - - int xdl_mmfile_compact(mmfile_t *mmfo, mmfile_t *mmfc, long bsize, - unsigned long flags); - - Request to create a compact version of the memory file mmfo into - the (uninitialized) memory file mmfc. The bsize parameter spec- - ify the requested block size and flags specify flags to be used - to create the new mmfc memory file (see xdl_init_mmfile() ). The - function returns 0 if succedded or -1 if an error happened. - - - int xdl_diff(mmfile_t *mmf1, mmfile_t *mmf2, xpparam_t const *xpp, - xdemitconf_t const *xecfg, xdemitcb_t *ecb); - - Request to create the difference between the two text memory - files mmf1 and mmf2. The mmf1 memory files is considered the - "old" file while mmf2 is considered the "new" file. So the func- - tion will create a patch file that once applied to mmf1 will - give mmf2 as result. Files mmf1 and mmf2 must be atomic from a - line point of view (or, as an extreme, compact), that means that - a single test line cannot spread among different memory file - blocks. The xpp parameter is a pointer to a structure : - - typedef struct s_xpparam { - unsigned long flags; - } xpparam_t; - - that is used to specify parameters to be used by the file dif- - ferential algorithm. The flags field is a combination of the - following flags : - - - XDF_NEED_MINIMAL Requires the minimal edit script to be found by - the algorithm (may be slow). - - The xecfg parameter point to a structure : - - typedef struct s_xdemitconf { - long ctxlen; - } xdemitconf_t; - - that is used to configure the algorithm responsible of the - creation the the differential file from an edit script. The - ctxlen field is used to specify the amount of context to be - emitted inside the differential file (the value 3 is suggested - for normal operations). The parameter ecb is a pointer to a - structure : - - typedef struct s_xdemitcb { - void *priv; - int (*outf)(void *, mmbuffer_t *, int); - } xdemitcb_t; - - that is used by the differential file creation algorithm to emit - the created data. The priv field is an opaque pointer to a user - specified data, while the outf field point to a callback func- - tion that is called internally to emit algorithm generated data - rappresenting the differential file. The first parameter of the - callback is the same priv field specified inside the xdemitcb_t - structure. The second parameter point to an array of mmbuffer_t - (see above for a definition of the structure) whose element - count is specified inside the last parameter of the callback - itself. The callback will always be called with entire records - (lines) and never a record (line) will be emitted using two dif- - ferent callback calls. This is important because if the called - will use another memory file to store the result, by creating - the target memory file with XDL_MMF_ATOMIC will guarantee the - "atomicity" of the memory file itself. The function returns 0 - if succeeded or -1 if an error occurred. - - - int xdl_patch(mmfile_t *mmf, mmfile_t *mmfp, int mode, xdemitcb_t *ecb, - xdemitcb_t *rjecb); - - Request to patch the memory file mmf using the patch file stored - in mmfp. The mmf memory file is not changed during the opera- - tion and can be considered as read only. The mode parameter can - be one of the following values : - - XDL_PATCH_NORMAL Perform standard patching like if the patch - memory file mmfp has been created using mmf as "old" file. - - XDL_PATCH_REVERSE Apply the reverse patch. That means that the - mmf memory file has to be considered as if it was specified as - "new" file during the differential operation ( xdl_diff() ). The - result of the operation will then be the file content that was - used as "old" file during the differential operation. - - The following flags can be specified (by or-ing them) to one of - the above: - - XDL_PATCH_IGNOREBSPACE Ignore the whitespace at the beginning - and the end of the line. - - The ecb will be used by the patch algorithm to create the result - file while the rjecb will be used to emit all differential - chunks that cannot be applied. Like explained above, callbacks - are always called with entire records to guarantee atomicity of - the resulting output. The function returns 0 if succeeded with- - out performing any fuzzy hunk detection, a positive value if it - secceeded with fuzzy hunk detection or -1 if an error occurred - during the patch operation. - - - int xdl_merge3(mmfile_t *mmfo, mmfile_t *mmf1, mmfile_t *mmf2, - xdemitcb_t *ecb, xdemitcb_t *rjecb); - - Merges three files together. The mmfo file is the original one, - while mmf1 and mmf2 are two modified versions of mmfo. The - function works by creating a differential between mmfo and mmf2 - and by applying the resulting patch to mmf1. Because of this - sequence, mmf1 changes will be privileged against the ones of - mmf2. The ecb will be used by the patch algorithm to create the - result file while the rjecb will be used to emit all differen- - tial chunks that cannot be applied. Like explained above, call- - backs are always called with entire records to guarantee atomic- - ity of the resulting output. The function returns 0 if suc- - ceeded or -1 if an error occurred during the patch operation. - - - int xdl_bdiff(mmfile_t *mmf1, mmfile_t *mmf2, bdiffparam_t const *bdp, - xdemitcb_t *ecb); - - Request to create the difference between the two text memory - files mmf1 and mmf2. The mmf1 memory files is considered the - "old" file while mmf2 is considered the "new" file. So the func- - tion will create a patch file that once applied to mmf1 will - give mmf2 as result. Files mmf1 and mmf2 must be compact to make - it easy and faster to perform the difference operation. Func- - tions are available to check for compactness ( xdl_mmfile_iscom- - pact() ) and to make compact a non-compact file ( - xdl_mmfile_compact() ). An example of how to create a compact - memory file (described inside the test subdirectory) is : - - int xdlt_load_mmfile(char const *fname, mmfile_t *mf, int binmode) { - char cc; - int fd; - long size, bsize; - char *blk; - - if (xdl_init_mmfile(mf, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) - return -1; - if ((fd = open(fname, O_RDONLY)) == -1) { - perror(fname); - xdl_free_mmfile(mf); - return -1; - } - if ((size = bsize = lseek(fd, 0, SEEK_END)) > 0 && !binmode) { - if (lseek(fd, -1, SEEK_END) != (off_t) -1 && - read(fd, &cc, 1) && cc != '\n') - bsize++; - } - lseek(fd, 0, SEEK_SET); - if (!(blk = (char *) xdl_mmfile_writeallocate(mf, bsize))) { - xdl_free_mmfile(mf); - close(fd); - return -1; - } - if (read(fd, blk, (size_t) size) != (size_t) size) { - perror(fname); - xdl_free_mmfile(mf); - close(fd); - return -1; - } - close(fd); - if (bsize > size) - blk[size] = '\n'; - return 0; - } - - The bdp parameter points to a structure : - - typedef struct s_bdiffparam { - long bsize; - } bdiffparam_t; - - that is used to pass information to the binary file differential - algorithm. The bsize parameter specify the size of the block - that will be used to decompose mmf1 during the block classifica- - tion phase of the algorithm (see MacDonald paper). Suggested - values go from 16 to 64, with a preferred power of two charac- - teristic. The ecb parameter is used to pass the emission call- - back to the algorithm responsible of the output file creation. - The function returns 0 if succeede or -1 if an error is - occurred. - - - int xdl_bdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, bdiffparam_t const - *bdp, xdemitcb_t *ecb); - - Same as xdl_bdiff() but it works on memory buffer directly. The - xdl_bdiff() is implemented internally with a xdl_bdiff_mb() - after having setup the two memory buffers from the passed memory - files (that must be compact, as described above). The memory - buffer structure is defined as : - - typedef struct s_mmbuffer { - char *ptr; - long size; - } mmbuffer_t; - - An empty memory buffer is specified by setting the ptr member as - NULL and the size member as zero. The reason of having this - function is to avoid the memory file preparation, that might - involve copying memory from other sources. Using the - xdl_bdiff_mb(), the caller can setup the two memory buffer by - using, for example, mmap(2), and hence avoiding unnecessary mem- - ory copies. The other parameters and the return value of the - function xdl_bdiff_mb() are the same as the ones already - described in xdl_bdiff(). - - - int xdl_rabdiff(mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb); - - Request to create the difference between the two text memory - files mmf1 and mmf2 using the Rabin's polynomial fingerprinting - algorithm. This algorithm typically performs faster and produces - smaller deltas, when compared to the XDelta-like one. The mmf1 - memory files is considered the "old" file while mmf2 is consid- - ered the "new" file. So the function will create a patch file - that once applied to mmf1 will give mmf2 as result. Files mmf1 - and mmf2 must be compact to make it easy and faster to perform - the difference operation. Functions are available to check for - compactness ( xdl_mmfile_iscompact() ) and to make compact a - non-compact file ( xdl_mmfile_compact() ). The ecb parameter is - used to pass the emission callback to the algorithm responsible - of the output file creation. The function returns 0 if succeede - or -1 if an error is occurred. - - - int xdl_rabdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, xdemitcb_t - *ecb); - - Same as xdl_rabdiff() but it works on memory buffer directly. - The memory buffer structure is defined as : - - typedef struct s_mmbuffer { - char *ptr; - long size; - } mmbuffer_t; - - An empty memory buffer is specified by setting the ptr member as - NULL and the size member as zero. The reason of having this - function is to avoid the memory file preparation, that might - involve copying memory from other sources. Using the xdl_rabd- - iff_mb(), the caller can setup the two memory buffer by using, - for example, mmap(2), and hence avoiding unnecessary memory - copies. The other parameters and the return value of the func- - tion xdl_rabdiff_mb() are the same as the ones already described - in xdl_rabdiff(). - - - long xdl_bdiff_tgsize(mmfile_t *mmfp); - - Given a binary memory file patch, it returns the size that the - result file will have once the patch is applied to the target - file. It can be used to pre-allocate (or write-allocate) a mem- - ory block to store the patch result so that a compact file will - be available at the end of the operation. The function returns - the requested size, or -1 if an error occurred during the opera- - tion. - - - int xdl_bpatch(mmfile_t *mmf, mmfile_t *mmfp, xdemitcb_t *ecb); - - Request to patch the binary memory file mmf using the binary - patch file stored in mmfp. The mmf memory file is not changed - during the operation and can be considered as read only. The - binary patch algorithm has no notion of context, so the patch - operation cannot be partial (either success or failure). The ecb - parameter contain the callabck (see above for description) used - by the binary patch algorithm to emit the result file. The func- - tion returns 0 if succeeded or -1 if an error occurred during - the patch operation. - - -SEE ALSO - Two papers drove the content of this library and these are : - - o File System Support for Delta Compression by Joshua P. MacDonald - http://www.xmailserver.org/xdfs.pdf - - o Fingerprinting by Random Polynomials by Michael O. Rabin - http://www.xmailserver.org/rabin.pdf - - o An O(ND) Difference Algorithm and Its Variations by Eugene W. - Myers http://www.xmailserver.org/diff2.pdf - - - Also usefull information can be looked up inside the diffutil GNU pack- - age : - - http://www.gnu.org/software/diffutils/diffutils.html - - -LICENSE - This library is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published - by the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. A copy of the license is available - at : - - http://www.gnu.org/copyleft/lesser.html - - -AUTHOR - Developed by Davide Libenzi - - -AVAILABILITY - The latest version of LibXDiff can be found at : - - http://www.xmailserver.org/xdiff-lib.html - - -BUGS - There are no known bugs. Bug reports and comments to Davide Libenzi - - - - - -GNU 0.23 LibXDiff(3) diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/test/xdiff_test.c b/gems/xdiff-rb/ext/xdiff/xdiff/test/xdiff_test.c deleted file mode 100644 index 65a9cdd9..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/test/xdiff_test.c +++ /dev/null @@ -1,202 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include "xdiff.h" -#include "xtestutils.h" - - - - - -static int xdlt_outf(void *priv, mmbuffer_t *mb, int nbuf) { - int i; - - for (i = 0; i < nbuf; i++) - if (!fwrite(mb[i].ptr, mb[i].size, 1, (FILE *) priv)) - return -1; - - return 0; -} - - -void usage(char const *prg) { - - fprintf(stderr, - "use: %s --diff [-C N] from-file to-file\n" - " %s --patch orig-file patch-file\n" - " %s --bdiff [-B N] from-file to-file\n" - " %s --rabdiff from-file to-file\n" - " %s --bpatch orig-file patch-file\n", - prg, prg, prg, prg, prg); -} - - -static void *wrap_malloc(void *priv, unsigned int size) { - - return malloc(size); -} - - -static void wrap_free(void *priv, void *ptr) { - - free(ptr); -} - - -static void *wrap_realloc(void *priv, void *ptr, unsigned int size) { - - return realloc(ptr, size); -} - - -int main(int argc, char *argv[]) { - int i = 1, ctxlen = 3, bsize = 16, do_diff, do_patch, do_bdiff, do_bpatch, do_rabdiff; - memallocator_t malt; - mmfile_t mf1, mf2; - xpparam_t xpp; - xdemitconf_t xecfg; - bdiffparam_t bdp; - xdemitcb_t ecb, rjecb; - - if (argc < 4) { - usage(argv[0]); - return 1; - } - malt.priv = NULL; - malt.malloc = wrap_malloc; - malt.free = wrap_free; - malt.realloc = wrap_realloc; - xdl_set_allocator(&malt); - - do_diff = do_patch = do_bdiff = do_bpatch = do_rabdiff = 0; - if (!strcmp(argv[i], "--diff")) { - i++; - do_diff = 1; - for (; i < argc; i++) { - if (strcmp(argv[i], "-C") == 0) { - if (++i < argc) - ctxlen = atoi(argv[i]); - } else - break; - } - } else if (!strcmp(argv[i], "--patch")) { - i++; - do_patch = 1; - } else if (!strcmp(argv[i], "--bdiff")) { - i++; - do_bdiff = 1; - for (; i < argc; i++) { - if (strcmp(argv[i], "-B") == 0) { - if (++i < argc) - bsize = atoi(argv[i]); - } else - break; - } - } else if (!strcmp(argv[i], "--rabdiff")) { - i++; - do_rabdiff = 1; - } else if (!strcmp(argv[i], "--bpatch")) { - i++; - do_bpatch = 1; - } else { - usage(argv[0]); - return 1; - } - if (argc - i < 2) { - usage(argv[0]); - return 1; - } - - xpp.flags = 0; - xecfg.ctxlen = ctxlen; - bdp.bsize = bsize; - if (xdlt_load_mmfile(argv[i], &mf1, do_bdiff || do_bpatch) < 0) { - - return 2; - } - if (xdlt_load_mmfile(argv[i + 1], &mf2, do_bdiff || do_bpatch) < 0) { - - xdl_free_mmfile(&mf1); - return 2; - } - if (do_diff) { - ecb.priv = stdout; - ecb.outf = xdlt_outf; - - if (xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb) < 0) { - - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - return 3; - } - } else if (do_bdiff) { - ecb.priv = stdout; - ecb.outf = xdlt_outf; - if (xdl_bdiff(&mf1, &mf2, &bdp, &ecb) < 0) { - - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - return 4; - } - } else if (do_rabdiff) { - ecb.priv = stdout; - ecb.outf = xdlt_outf; - if (xdl_rabdiff(&mf1, &mf2, &ecb) < 0) { - - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - return 4; - } - } else if (do_bpatch) { - ecb.priv = stdout; - ecb.outf = xdlt_outf; - if (xdl_bpatch(&mf1, &mf2, &ecb) < 0) { - - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - return 5; - } - } else if (do_patch) { - ecb.priv = stdout; - ecb.outf = xdlt_outf; - rjecb.priv = stderr; - rjecb.outf = xdlt_outf; - if (xdl_patch(&mf1, &mf2, XDL_PATCH_NORMAL, &ecb, &rjecb) < 0) { - - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - return 6; - } - } - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - - return 0; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/test/xregression.c b/gems/xdiff-rb/ext/xdiff/xdiff/test/xregression.c deleted file mode 100644 index 9ac16d8f..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/test/xregression.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include -#include -#include -#include -#include -#include -#include "xdiff.h" -#include "xtestutils.h" - - - -static void *wrap_malloc(void *priv, unsigned int size) { - - return malloc(size); -} - - -static void wrap_free(void *priv, void *ptr) { - - free(ptr); -} - - -static void *wrap_realloc(void *priv, void *ptr, unsigned int size) { - - return realloc(ptr, size); -} - - -int main(int argc, char *argv[]) { - int i, chmax = 64; - long size = 1024 * 100; - double rmod = 0.1; - xpparam_t xpp; - xdemitconf_t xecfg; - bdiffparam_t bdp; - memallocator_t malt; - - malt.priv = NULL; - malt.malloc = wrap_malloc; - malt.free = wrap_free; - malt.realloc = wrap_realloc; - xdl_set_allocator(&malt); - - xpp.flags = 0; - xecfg.ctxlen = 3; - bdp.bsize = 16; - - for (i = 1; i < argc; i++) { - if (!strcmp(argv[i], "--size")) { - if (++i < argc) - size = atol(argv[i]); - } else if (!strcmp(argv[i], "--rmod")) { - if (++i < argc) - rmod = atof(argv[i]); - } else if (!strcmp(argv[i], "--ctxlen")) { - if (++i < argc) - xecfg.ctxlen = atol(argv[i]); - } else if (!strcmp(argv[i], "--chmax")) { - if (++i < argc) - chmax = atoi(argv[i]); - } - } - - srand(time(NULL)); - for (i = 0;; i++) { - fprintf(stderr, "Running TEXT test : %d ... ", i); - if (xdlt_auto_regress(&xpp, &xecfg, size, rmod, chmax) < 0) { - - fprintf(stderr, "FAIL\n"); - break; - } else { - - fprintf(stderr, "OK\n"); - } - - fprintf(stderr, "Running BIN test : %d ... ", i); - if (xdlt_auto_binregress(&bdp, size, rmod, chmax) < 0) { - - fprintf(stderr, "FAIL\n"); - break; - } else { - - fprintf(stderr, "OK\n"); - } - - fprintf(stderr, "Running RBIN test : %d ... ", i); - if (xdlt_auto_rabinregress(size, rmod, chmax) < 0) { - - fprintf(stderr, "FAIL\n"); - break; - } else { - - fprintf(stderr, "OK\n"); - } - - fprintf(stderr, "Running MBIN test : %d ... ", i); - if (xdlt_auto_mbinregress(&bdp, size, rmod, chmax, 32) != 0) { - - fprintf(stderr, "FAIL\n"); - break; - } else { - - fprintf(stderr, "OK\n"); - } - } - - return 0; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/test/xtestutils.c b/gems/xdiff-rb/ext/xdiff/xdiff/test/xtestutils.c deleted file mode 100644 index a9a6785d..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/test/xtestutils.c +++ /dev/null @@ -1,631 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include -#include -#include -#include -#include -#include -#include - -#if defined(WIN32) || defined(_WIN32) - -#include - -#define write _write -#define read _read -#define lseek _lseek -#define close _close -#define O_CREAT _O_CREAT -#define O_WRONLY _O_WRONLY -#define O_RDONLY _O_RDONLY -#define off_t long -#define size_t int - -#else /* #if defined(WIN32) || defined(_WIN32) */ - -#include - -#endif /* #if defined(WIN32) || defined(_WIN32) */ - -#include "xmacros.h" -#include "xdiff.h" -#include "xtestutils.h" - - - -#define XDLT_STD_BLKSIZE (1024 * 8) -#define XDLT_MAX_LINE_SIZE 80 - - - - -static int xdlt_mmfile_outf(void *priv, mmbuffer_t *mb, int nbuf); - - - - - -int xdlt_dump_mmfile(char const *fname, mmfile_t *mmf) { - int fd; - long size; - char *blk; - - if ((fd = open(fname, O_CREAT | O_WRONLY, 0644)) == -1) { - perror(fname); - return -1; - } - - if ((blk = (char *) xdl_mmfile_first(mmf, &size)) != NULL) { - do { - if (write(fd, blk, (size_t) size) != (size_t) size) { - perror(fname); - close(fd); - return -1; - } - } while ((blk = (char *) xdl_mmfile_next(mmf, &size)) != NULL); - } - - close(fd); - - return 0; -} - - -int xdlt_load_mmfile(char const *fname, mmfile_t *mf, int binmode) { - char cc; - int fd; - long size; - char *blk; - - if (xdl_init_mmfile(mf, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - if ((fd = open(fname, O_RDONLY)) == -1) { - perror(fname); - xdl_free_mmfile(mf); - return -1; - } - size = lseek(fd, 0, SEEK_END); - lseek(fd, 0, SEEK_SET); - if (!(blk = (char *) xdl_mmfile_writeallocate(mf, size))) { - xdl_free_mmfile(mf); - close(fd); - return -1; - } - if (read(fd, blk, (size_t) size) != (size_t) size) { - perror(fname); - xdl_free_mmfile(mf); - close(fd); - return -1; - } - close(fd); - - return 0; -} - - -static int xdlt_mmfile_outf(void *priv, mmbuffer_t *mb, int nbuf) { - mmfile_t *mmf = priv; - - if (xdl_writem_mmfile(mmf, mb, nbuf) < 0) { - - return -1; - } - - return 0; -} - - -int xdlt_do_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdemitconf_t const *xecfg, mmfile_t *mfp) { - xdemitcb_t ecb; - - if (xdl_init_mmfile(mfp, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - ecb.priv = mfp; - ecb.outf = xdlt_mmfile_outf; - if (xdl_diff(mf1, mf2, xpp, xecfg, &ecb) < 0) { - - xdl_free_mmfile(mfp); - return -1; - } - - return 0; -} - - -int xdlt_do_patch(mmfile_t *mfo, mmfile_t *mfp, int mode, mmfile_t *mfr) { - xdemitcb_t ecb, rjecb; - mmfile_t mmfrj; - - if (xdl_init_mmfile(mfr, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - if (xdl_init_mmfile(&mmfrj, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - xdl_free_mmfile(mfr); - return -1; - } - ecb.priv = mfr; - ecb.outf = xdlt_mmfile_outf; - rjecb.priv = &mmfrj; - rjecb.outf = xdlt_mmfile_outf; - if (xdl_patch(mfo, mfp, mode, &ecb, &rjecb) < 0) { - - xdl_free_mmfile(&mmfrj); - xdl_free_mmfile(mfr); - return -1; - } - - if (mmfrj.fsize > 0) { - -#if 1 - xdlt_dump_mmfile("xregr.orig", mfo); - xdlt_dump_mmfile("xregr.patch", mfp); - xdlt_dump_mmfile("xregr.rej", &mmfrj); -#endif - - xdl_free_mmfile(&mmfrj); - xdl_free_mmfile(mfr); - return -1; - } - xdl_free_mmfile(&mmfrj); - - return 0; -} - - -int xdlt_do_regress(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdemitconf_t const *xecfg) { - mmfile_t mfp, mfr; - - if (xdlt_do_diff(mf1, mf2, xpp, xecfg, &mfp) < 0) { - - return -1; - } - if (xdlt_do_patch(mf1, &mfp, XDL_PATCH_NORMAL, &mfr) < 0) { - - xdl_free_mmfile(&mfp); - return -1; - } - if (xdl_mmfile_cmp(&mfr, mf2)) { - - xdl_free_mmfile(&mfr); - xdl_free_mmfile(&mfp); - return -1; - } - xdl_free_mmfile(&mfr); - if (xdlt_do_patch(mf2, &mfp, XDL_PATCH_REVERSE, &mfr) < 0) { - - xdl_free_mmfile(&mfp); - return -1; - } - if (xdl_mmfile_cmp(&mfr, mf1)) { - - xdl_free_mmfile(&mfr); - xdl_free_mmfile(&mfp); - return -1; - } - xdl_free_mmfile(&mfr); - xdl_free_mmfile(&mfp); - - return 0; -} - - -long xdlt_gen_line(char *buf, long msize) { - long i, size; - static const char ab[] = - "zxcvbnmlkjhgfdsaqwertyuiop" - "ZXCVBNMLKJHGFDSAQWERTYUIOP" - "0123456789 "; - static const int absize = sizeof(ab) - 1; - - if (msize > 0) - size = rand() % (msize - 1); - else - size = -msize - 1; - for (i = 0; i < size; i++) - buf[i] = ab[rand() % absize]; - buf[i] = '\n'; - return size + 1; -} - - -int xdlt_create_file(mmfile_t *mf, long size) { - long lnsize, csize; - char *data; - - if (xdl_init_mmfile(mf, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - if (!(data = xdl_mmfile_writeallocate(mf, size))) { - - xdl_free_mmfile(mf); - return -1; - } - for (csize = 0; size - csize > XDLT_MAX_LINE_SIZE;) { - lnsize = xdlt_gen_line(data, XDLT_MAX_LINE_SIZE); - data += lnsize; - csize += lnsize; - } - if (csize < size) - xdlt_gen_line(data, -(size - csize)); - - return 0; -} - - -int xdlt_change_file(mmfile_t *mfo, mmfile_t *mfr, double rmod, - int chmax) { - long skipln, lnsize, bsize; - char const *blk, *cur, *top, *eol; - char lnbuf[XDLT_MAX_LINE_SIZE + 1]; - - if (xdl_init_mmfile(mfr, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - if ((blk = xdl_mmfile_first(mfo, &bsize)) != NULL) { - for (cur = blk, top = blk + bsize, skipln = 0;;) { - if (cur >= top) { - if ((blk = xdl_mmfile_next(mfo, &bsize)) == NULL) - break; - cur = blk; - top = blk + bsize; - } - if (!(eol = memchr(cur, '\n', top - cur))) - eol = top; - if (!skipln) { - if (DBL_RAND() < rmod) { - skipln = rand() % chmax; - if (rand() & 1) { - for (; skipln > 0; skipln--) { - lnsize = xdlt_gen_line(lnbuf, XDLT_MAX_LINE_SIZE); - if (xdl_write_mmfile(mfr, lnbuf, lnsize) != lnsize) { - - xdl_free_mmfile(mfr); - return -1; - } - } - } - } else { - lnsize = (eol - cur) + 1; - if (xdl_write_mmfile(mfr, cur, lnsize) != lnsize) { - - xdl_free_mmfile(mfr); - return -1; - } - } - } else - skipln--; - - cur = eol + 1; - } - } - - return 0; -} - - -int xdlt_auto_regress(xpparam_t const *xpp, xdemitconf_t const *xecfg, long size, - double rmod, int chmax) { - mmfile_t mf1, mf2; - - if (xdlt_create_file(&mf1, size) < 0) { - - return -1; - } - if (xdlt_change_file(&mf1, &mf2, rmod, chmax) < 0) { - - xdl_free_mmfile(&mf1); - return -1; - } - if (xdlt_do_regress(&mf1, &mf2, xpp, xecfg) < 0) { - - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - return -1; - } - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - - return 0; -} - - -int xdlt_do_bindiff(mmfile_t *mf1, mmfile_t *mf2, bdiffparam_t const *bdp, mmfile_t *mfp) { - xdemitcb_t ecb; - - if (xdl_init_mmfile(mfp, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - ecb.priv = mfp; - ecb.outf = xdlt_mmfile_outf; - if (xdl_bdiff(mf1, mf2, bdp, &ecb) < 0) { - - xdl_free_mmfile(mfp); - return -1; - } - - return 0; -} - - -int xdlt_do_rabdiff(mmfile_t *mf1, mmfile_t *mf2, mmfile_t *mfp) { - xdemitcb_t ecb; - - if (xdl_init_mmfile(mfp, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - ecb.priv = mfp; - ecb.outf = xdlt_mmfile_outf; - if (xdl_rabdiff(mf1, mf2, &ecb) < 0) { - - xdl_free_mmfile(mfp); - return -1; - } - - return 0; -} - - -int xdlt_do_binpatch(mmfile_t *mf, mmfile_t *mfp, mmfile_t *mfr) { - xdemitcb_t ecb; - - if (xdl_init_mmfile(mfr, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - ecb.priv = mfr; - ecb.outf = xdlt_mmfile_outf; - if (xdl_bpatch(mf, mfp, &ecb) < 0) { - - xdl_free_mmfile(mfr); - return -1; - } - - return 0; -} - - -int xdlt_do_binregress(mmfile_t *mf1, mmfile_t *mf2, bdiffparam_t const *bdp) { - mmfile_t mfp, mfr; - - if (xdlt_do_bindiff(mf1, mf2, bdp, &mfp) < 0) { - - return -1; - } - if (xdlt_do_binpatch(mf1, &mfp, &mfr) < 0) { - - xdl_free_mmfile(&mfp); - return -1; - } - if (xdl_mmfile_cmp(&mfr, mf2)) { - - xdl_free_mmfile(&mfr); - xdl_free_mmfile(&mfp); - return -1; - } - xdl_free_mmfile(&mfr); - xdl_free_mmfile(&mfp); - - return 0; -} - - -int xdlt_do_rabinregress(mmfile_t *mf1, mmfile_t *mf2) { - mmfile_t mfp, mfr; - - if (xdlt_do_rabdiff(mf1, mf2, &mfp) < 0) { - - return -1; - } - if (xdlt_do_binpatch(mf1, &mfp, &mfr) < 0) { - - xdl_free_mmfile(&mfp); - return -1; - } - if (xdl_mmfile_cmp(&mfr, mf2)) { - - xdl_free_mmfile(&mfr); - xdl_free_mmfile(&mfp); - return -1; - } - xdl_free_mmfile(&mfr); - xdl_free_mmfile(&mfp); - - return 0; -} - - -int xdlt_auto_binregress(bdiffparam_t const *bdp, long size, - double rmod, int chmax) { - mmfile_t mf1, mf2, mf2c; - - if (xdlt_create_file(&mf1, size) < 0) { - - return -1; - } - if (xdlt_change_file(&mf1, &mf2, rmod, chmax) < 0) { - - xdl_free_mmfile(&mf1); - return -1; - } - if (xdl_mmfile_compact(&mf2, &mf2c, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - return -1; - } - xdl_free_mmfile(&mf2); - if (xdlt_do_binregress(&mf1, &mf2c, bdp) < 0) { - - xdl_free_mmfile(&mf2c); - xdl_free_mmfile(&mf1); - return -1; - } - xdl_free_mmfile(&mf2c); - xdl_free_mmfile(&mf1); - - return 0; -} - - -int xdlt_auto_rabinregress(long size, double rmod, int chmax) { - mmfile_t mf1, mf2, mf2c; - - if (xdlt_create_file(&mf1, size) < 0) { - - return -1; - } - if (xdlt_change_file(&mf1, &mf2, rmod, chmax) < 0) { - - xdl_free_mmfile(&mf1); - return -1; - } - if (xdl_mmfile_compact(&mf2, &mf2c, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - xdl_free_mmfile(&mf2); - xdl_free_mmfile(&mf1); - return -1; - } - xdl_free_mmfile(&mf2); - if (xdlt_do_rabinregress(&mf1, &mf2c) < 0) { - - xdl_free_mmfile(&mf2c); - xdl_free_mmfile(&mf1); - return -1; - } - xdl_free_mmfile(&mf2c); - xdl_free_mmfile(&mf1); - - return 0; -} - - -int xdlt_auto_mbinregress(bdiffparam_t const *bdp, long size, - double rmod, int chmax, int n) { - int i, res; - mmbuffer_t *mbb; - mmfile_t *mf, *mfc, *mfx; - mmfile_t mfn, mff, mfd, mfb; - xdemitcb_t ecb; - - if ((mbb = (mmbuffer_t *) xdl_malloc((n + 2) * sizeof(mmbuffer_t))) == NULL) { - - return -1; - } - if ((mf = mfc = (mmfile_t *) xdl_malloc((n + 2) * sizeof(mmfile_t))) == NULL) { - - xdl_free(mbb); - return -1; - } - if (xdlt_create_file(mfc, size) < 0) { - - xdl_free(mf); - xdl_free(mbb); - return -1; - } - mbb[0].ptr = (char *) xdl_mmfile_first(mfc, &mbb[0].size); - mfc++; - mfx = mf; - for (i = 0; i < n; i++) { - if (xdlt_change_file(mfx, &mfn, rmod, chmax) < 0) { - - if (mfx != mf) xdl_free_mmfile(mfx); - for (; i >= 0; i--) - xdl_free_mmfile(mf + i); - xdl_free(mf); - xdl_free(mbb); - return -1; - } - if (xdl_mmfile_compact(&mfn, &mff, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - xdl_free_mmfile(&mfn); - if (mfx != mf) xdl_free_mmfile(mfx); - for (; i >= 0; i--) - xdl_free_mmfile(mf + i); - xdl_free(mf); - xdl_free(mbb); - return -1; - } - xdl_free_mmfile(&mfn); - if (xdlt_do_bindiff(mfx, &mff, bdp, &mfd) < 0) { - - xdl_free_mmfile(&mff); - if (mfx != mf) xdl_free_mmfile(mfx); - for (; i >= 0; i--) - xdl_free_mmfile(mf + i); - xdl_free(mf); - xdl_free(mbb); - return -1; - } - if (mfx != mf) xdl_free_mmfile(mfx); - mfx = &mfb; - *mfx = mff; - if (xdl_mmfile_compact(&mfd, mfc, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - xdl_free_mmfile(&mfd); - xdl_free_mmfile(mfx); - for (; i >= 0; i--) - xdl_free_mmfile(mf + i); - xdl_free(mf); - xdl_free(mbb); - return -1; - } - mbb[i + 1].ptr = (char *) xdl_mmfile_first(mfc, &mbb[i + 1].size); - mfc++; - xdl_free_mmfile(&mfd); - } - if (xdl_init_mmfile(mfc, XDLT_STD_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - xdl_free_mmfile(mfx); - for (i = n; i >= 0; i--) - xdl_free_mmfile(mf + i); - xdl_free(mf); - xdl_free(mbb); - return -1; - } - ecb.priv = mfc; - ecb.outf = xdlt_mmfile_outf; - if ((res = xdl_bpatch_multi(&mbb[0], &mbb[1], n, &ecb)) == 0) - res = xdl_mmfile_cmp(mfx, mfc); - - xdl_free_mmfile(mfx); - for (i = n + 1; i >= 0; i--) - xdl_free_mmfile(mf + i); - xdl_free(mf); - xdl_free(mbb); - - return res; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/test/xtestutils.h b/gems/xdiff-rb/ext/xdiff/xdiff/test/xtestutils.h deleted file mode 100644 index 20feb49b..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/test/xtestutils.h +++ /dev/null @@ -1,57 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XTESTUTILS_H) -#define XTESTUTILS_H - - - -#define DBL_RAND() (((double) rand()) / (1.0 + (double) RAND_MAX)) - - - -int xdlt_dump_mmfile(char const *fname, mmfile_t *mmf); -int xdlt_load_mmfile(char const *fname, mmfile_t *mf, int binmode); -int xdlt_do_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdemitconf_t const *xecfg, mmfile_t *mfp); -int xdlt_do_patch(mmfile_t *mfo, mmfile_t *mfp, int mode, mmfile_t *mfr); -int xdlt_do_regress(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdemitconf_t const *xecfg); -long xdlt_gen_line(char *buf, long msize); -int xdlt_create_file(mmfile_t *mf, long size); -int xdlt_change_file(mmfile_t *mfo, mmfile_t *mfr, double rmod, int chmax); -int xdlt_auto_regress(xpparam_t const *xpp, xdemitconf_t const *xecfg, long size, - double rmod, int chmax); -int xdlt_do_bindiff(mmfile_t *mf1, mmfile_t *mf2, bdiffparam_t const *bdp, mmfile_t *mfp); -int xdlt_do_rabdiff(mmfile_t *mf1, mmfile_t *mf2, mmfile_t *mfp); -int xdlt_do_binpatch(mmfile_t *mf, mmfile_t *mfp, mmfile_t *mfr); -int xdlt_do_binregress(mmfile_t *mf1, mmfile_t *mf2, bdiffparam_t const *bdp); -int xdlt_do_rabinregress(mmfile_t *mf1, mmfile_t *mf2); -int xdlt_auto_binregress(bdiffparam_t const *bdp, long size, - double rmod, int chmax); -int xdlt_auto_rabinregress(long size, double rmod, int chmax); -int xdlt_auto_mbinregress(bdiffparam_t const *bdp, long size, - double rmod, int chmax, int n); - - -#endif /* #if !defined(XTESTUTILS_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/tools/xrabin.c b/gems/xdiff-rb/ext/xdiff/xdiff/tools/xrabin.c deleted file mode 100644 index ccee8190..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/tools/xrabin.c +++ /dev/null @@ -1,296 +0,0 @@ -/* - * xrabin by Davide Libenzi (Rabin's polynomial generator) - * Copyright (C) 2006 Davide Libenzi - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - * - * Hints, ideas and code for the implementation came from: - * - * Rabin's original paper: http://www.xmailserver.org/rabin.pdf - * Chan & Lu's paper: http://www.xmailserver.org/rabin_impl.pdf - * Broder's paper: http://www.xmailserver.org/rabin_apps.pdf - * LBFS source code: http://www.fs.net/sfswww/lbfs/ - * Geert Bosch's post: http://marc.theaimsgroup.com/?l=git&m=114565424620771&w=2 - * - */ - -#include -#include -#include -#include - - - -#if defined(WIN32) -#define strtoll _strtoi64 -#endif - - -#if !defined(XRAB_WORD_TYPE) -#if defined(WIN32) -#define XRAB_WORD_TYPE __int64 - -#else /* #if defined(WIN32) */ -#define XRAB_WORD_TYPE long long - -#endif /* #if defined(WIN32) */ -#endif /* #if !defined(XRAB_WORD_TYPE) */ - -#if !defined(XRAB_WORD_PFMT) -#if defined(WIN32) -#define XRAB_WORD_PFMT "0x%I64x" - -#else /* #if defined(WIN32) */ -#define XRAB_WORD_PFMT "0x%llx" - -#endif /* #if defined(WIN32) */ -#endif /* #if !defined(XRAB_WORD_PFMT) */ - -#define XPLYW_BITS (sizeof(xply_word) * 8) -#define XPLYW_MSB ((xply_word) 1 << (sizeof(xply_word) * 8 - 1)) - - - -typedef unsigned XRAB_WORD_TYPE xply_word; - - - - -static int xrab_isprime(int n) { - - if (n > 3) { - if (n & 1) { - int i, hn = n / 2; - - for (i = 3; i < hn; i += 2) - if (!(n % i)) - return 0; - } else - return 0; - } - - return 1; -} - -static int xrab_fls(xply_word v) { - int r, s; - xply_word mask = ~(((xply_word) 1 << (XPLYW_BITS / 2)) - 1); - - if (v == 0) - return 0; - for (r = XPLYW_BITS, s = r / 2; s != 0;) { - if ((v & mask) == 0) { - v <<= s; - r -= s; - } - s /= 2; - mask <<= s; - } - - return r; -} - -static xply_word xrab_polymod(xply_word nh, xply_word nl, xply_word d) { - int i, k = xrab_fls(d) - 1; - - d <<= (XPLYW_BITS - 1) - k; - if (nh) { - if (nh & XPLYW_MSB) - nh ^= d; - for (i = XPLYW_BITS - 2; i >= 0; i--) - if (nh & ((xply_word) 1) << i) { - nh ^= d >> (XPLYW_BITS - 1) - i; - nl ^= d << i + 1; - } - } - for (i = XPLYW_BITS - 1; i >= k; i--) - if (nl & ((xply_word) 1 << i)) - nl ^= d >> (XPLYW_BITS - 1) - i; - - return nl; -} - -static xply_word xrab_polygcd(xply_word x, xply_word y) { - - for (;;) { - if (!y) - return x; - x = xrab_polymod(0, x, y); - if (!x) - return y; - y = xrab_polymod(0, y, x); - } -} - -static void xrab_polymult(xply_word *php, xply_word *plp, xply_word x, - xply_word y) { - int i; - xply_word ph = 0, pl = 0; - - if (x & 1) - pl = y; - for (i = 1; i < XPLYW_BITS; i++) - if (x & (((xply_word) 1) << i)) { - ph ^= y >> (XPLYW_BITS - i); - pl ^= y << i; - } - if (php) - *php = ph; - if (plp) - *plp = pl; -} - -static xply_word xrab_polymmult(xply_word x, xply_word y, xply_word d) { - xply_word h, l; - - xrab_polymult(&h, &l, x, y); - - return xrab_polymod(h, l, d); -} - -static int xrab_polyirreducible(xply_word f) { - xply_word u = 2; - int i, m = (xrab_fls(f) - 1) >> 1; - - for (i = 0; i < m; i++) { - u = xrab_polymmult(u, u, f); - if (xrab_polygcd(f, u ^ 2) != 1) - return 0; - } - - return 1; -} - -static void xrab_rndgen(xply_word *f) { - unsigned int i; - xply_word g; - - for (i = 0, g = 0; i < sizeof(xply_word); i++) - g ^= (g << 11) + (unsigned int) rand() + (g >> 7); - *f = g; -} - -static int xrab_polygen(int degree, xply_word *ply) { - xply_word msb, mask, f; - - if (degree <= 0 || degree >= XPLYW_BITS) - return -1; - msb = ((xply_word) 1) << degree; - mask = msb - 1; - srand(time(NULL)); - do { - xrab_rndgen(&f); - f = (f & mask) | msb; - } while (!xrab_polyirreducible(f)); - *ply = f; - - return 0; -} - -static int xarb_calc_tu(xply_word poly, int size, xply_word *t, xply_word *u) { - int j, xshift, shift; - xply_word t1, ssh; - - xshift = xrab_fls(poly) - 1; - shift = xshift - 8; - if (shift < 0) - return -1; - t1 = xrab_polymod(0, ((xply_word) 1) << xshift, poly); - for (j = 0; j < 256; j++) - t[j] = xrab_polymmult(j, t1, poly) | ((xply_word) j << xshift); - for (j = 1, ssh = 1; j < size; j++) - ssh = (ssh << 8) ^ t[ssh >> shift]; - for (j = 0; j < 256; j++) - u[j] = xrab_polymmult(j, ssh, poly); - - return 0; -} - -int main(int ac, char **av) { - int i, size = 20, degree = 0, shift; - xply_word ply = 0, t[256], u[256]; - - for (i = 1; i < ac; i++) { - if (strcmp(av[i], "-s") == 0) { - if (++i < ac) - size = atol(av[i]); - } else if (strcmp(av[i], "-p") == 0) { - if (++i < ac) - ply = (xply_word) strtoll(av[i], NULL, 16); - } else if (strcmp(av[i], "-d") == 0) { - if (++i < ac) - degree = atol(av[i]); - } - } - if (degree && (degree < 8 || degree >= XPLYW_BITS)) { - fprintf(stderr, "degree (%d) out of bound for the poly word size (8..%u)\n", - degree, XPLYW_BITS); - return 1; - } - if (degree == 0) - for (degree = XPLYW_BITS - 1; !xrab_isprime(degree); degree--); - if (ply == 0 && xrab_polygen(degree, &ply) < 0) - return 2; - shift = (xrab_fls(ply) - 1) - 8; - fprintf(stderr, "found poly = " XRAB_WORD_PFMT " (shift %d)\n", - ply, shift); - if (xarb_calc_tu(ply, size, t, u) < 0) - return 3; - - fprintf(stdout, "#if defined(XRABPLY_TYPE%d)\n\n", XPLYW_BITS); - fprintf(stdout, "#if !defined(XV%d)\n", XPLYW_BITS); - fprintf(stdout, "#define XV%d(v) ((xply_word) v ## ULL)\n", XPLYW_BITS); - fprintf(stdout, "#endif\n\n"); - fprintf(stdout, "#define XRAB_ROOTPOLY XV%d(" XRAB_WORD_PFMT ")\n\n", - XPLYW_BITS, ply); - fprintf(stdout, "#define XRAB_SHIFT %d\n", shift); - fprintf(stdout, "#define XRAB_WNDSIZE %d\n\n", size); - fprintf(stdout, "typedef unsigned XRABPLY_TYPE%d xply_word;\n\n", XPLYW_BITS); - fprintf(stdout, "static const xply_word T[256] = {\n"); - for (i = 0; i < 256; i++) { - if (i) { - fputs(",", stdout); - if (i % 4 == 0) - fputs("\n\t", stdout); - else - fputs(" ", stdout); - } else - fputs("\t", stdout); - fprintf(stdout, "XV%d(" XRAB_WORD_PFMT ")", XPLYW_BITS, t[i]); - } - fprintf(stdout, "\n};\n\n"); - - fprintf(stdout, "static const xply_word U[256] = {\n"); - for (i = 0; i < 256; i++) { - if (i) { - fputs(",", stdout); - if (i % 4 == 0) - fputs("\n\t", stdout); - else - fputs(" ", stdout); - } else - fputs("\t", stdout); - fprintf(stdout, "XV%d(" XRAB_WORD_PFMT ")", XPLYW_BITS, u[i]); - } - fprintf(stdout, "\n};\n\n"); - - fprintf(stdout, "#endif /* if defined(XRABPLY_TYPE%d) */\n\n", XPLYW_BITS); - - return 0; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.c deleted file mode 100644 index 88024847..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - - -/* largest prime smaller than 65536 */ -#define BASE 65521L - -/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ -#define NMAX 5552 - - -#define DO1(buf, i) { s1 += buf[i]; s2 += s1; } -#define DO2(buf, i) DO1(buf, i); DO1(buf, i + 1); -#define DO4(buf, i) DO2(buf, i); DO2(buf, i + 2); -#define DO8(buf, i) DO4(buf, i); DO4(buf, i + 4); -#define DO16(buf) DO8(buf, 0); DO8(buf, 8); - - - -unsigned long xdl_adler32(unsigned long adler, unsigned char const *buf, - unsigned int len) { - int k; - unsigned long s1 = adler & 0xffff; - unsigned long s2 = (adler >> 16) & 0xffff; - - if (!buf) - return 1; - - while (len > 0) { - k = len < NMAX ? len :NMAX; - len -= k; - while (k >= 16) { - DO16(buf); - buf += 16; - k -= 16; - } - if (k != 0) - do { - s1 += *buf++; - s2 += s1; - } while (--k); - s1 %= BASE; - s2 %= BASE; - } - - return (s2 << 16) | s1; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.h deleted file mode 100644 index e67e2b25..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xadler32.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XADLER32_H) -#define XADLER32_H - - - -unsigned long xdl_adler32(unsigned long adler, unsigned char const *buf, - unsigned int len); - - - -#endif /* #if !defined(XADLER32_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xalloc.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xalloc.c deleted file mode 100644 index b084d295..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xalloc.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - - -static memallocator_t xmalt = {NULL, NULL, NULL}; - - - -int xdl_set_allocator(memallocator_t const *malt) { - xmalt = *malt; - return 0; -} - - -void *xdl_malloc(unsigned int size) { - return xmalt.malloc ? xmalt.malloc(xmalt.priv, size): NULL; -} - - -void xdl_free(void *ptr) { - if (xmalt.free) - xmalt.free(xmalt.priv, ptr); -} - - -void *xdl_realloc(void *ptr, unsigned int size) { - return xmalt.realloc ? xmalt.realloc(xmalt.priv, ptr, size): NULL; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.c deleted file mode 100644 index 3ef28c94..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.c +++ /dev/null @@ -1,315 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - -typedef struct s_bdrecord { - struct s_bdrecord *next; - unsigned long fp; - char const *ptr; -} bdrecord_t; - -typedef struct s_bdfile { - char const *data, *top; - chastore_t cha; - unsigned int fphbits; - bdrecord_t **fphash; -} bdfile_t; - - - -static int xdl_prepare_bdfile(mmbuffer_t *mmb, long fpbsize, bdfile_t *bdf) { - unsigned int fphbits; - long i, size, hsize; - char const *base, *data, *top; - bdrecord_t *brec; - bdrecord_t **fphash; - - fphbits = xdl_hashbits((unsigned int) (mmb->size / fpbsize) + 1); - hsize = 1 << fphbits; - if (!(fphash = (bdrecord_t **) xdl_malloc(hsize * sizeof(bdrecord_t *)))) { - - return -1; - } - for (i = 0; i < hsize; i++) - fphash[i] = NULL; - - if (xdl_cha_init(&bdf->cha, sizeof(bdrecord_t), hsize / 4 + 1) < 0) { - - xdl_free(fphash); - return -1; - } - - if (!(size = mmb->size)) { - bdf->data = bdf->top = NULL; - } else { - bdf->data = data = base = mmb->ptr; - bdf->top = top = mmb->ptr + mmb->size; - - if ((data += (size / fpbsize) * fpbsize) == top) - data -= fpbsize; - - for (; data >= base; data -= fpbsize) { - if (!(brec = (bdrecord_t *) xdl_cha_alloc(&bdf->cha))) { - - xdl_cha_free(&bdf->cha); - xdl_free(fphash); - return -1; - } - - brec->fp = xdl_adler32(0, (unsigned char const *) data, - XDL_MIN(fpbsize, (long) (top - data))); - brec->ptr = data; - - i = (long) XDL_HASHLONG(brec->fp, fphbits); - brec->next = fphash[i]; - fphash[i] = brec; - } - } - - bdf->fphbits = fphbits; - bdf->fphash = fphash; - - return 0; -} - - -static void xdl_free_bdfile(bdfile_t *bdf) { - - xdl_free(bdf->fphash); - xdl_cha_free(&bdf->cha); -} - - -unsigned long xdl_mmb_adler32(mmbuffer_t *mmb) { - - return mmb->size ? xdl_adler32(0, (unsigned char const *) mmb->ptr, mmb->size): 0; -} - - -unsigned long xdl_mmf_adler32(mmfile_t *mmf) { - unsigned long fp = 0; - long size; - char const *blk; - - if ((blk = (char const *) xdl_mmfile_first(mmf, &size)) != NULL) { - do { - fp = xdl_adler32(fp, (unsigned char const *) blk, size); - } while ((blk = (char const *) xdl_mmfile_next(mmf, &size)) != NULL); - } - return fp; -} - - -int xdl_bdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, bdiffparam_t const *bdp, xdemitcb_t *ecb) { - long i, rsize, size, bsize, csize, msize, moff; - unsigned long fp; - char const *blk, *base, *data, *top, *ptr1, *ptr2; - bdrecord_t *brec; - bdfile_t bdf; - mmbuffer_t mb[2]; - unsigned char cpybuf[32]; - - if ((bsize = bdp->bsize) < XDL_MIN_BLKSIZE) - bsize = XDL_MIN_BLKSIZE; - if (xdl_prepare_bdfile(mmb1, bsize, &bdf) < 0) { - - return -1; - } - - /* - * Prepare and emit the binary patch file header. It will be used - * to verify that that file being patched matches in size and fingerprint - * the one that generated the patch. - */ - fp = xdl_mmb_adler32(mmb1); - size = mmb1->size; - XDL_LE32_PUT(cpybuf, fp); - XDL_LE32_PUT(cpybuf + 4, size); - - mb[0].ptr = (char *) cpybuf; - mb[0].size = 4 + 4; - - if (ecb->outf(ecb->priv, mb, 1) < 0) { - - xdl_free_bdfile(&bdf); - return -1; - } - - if ((blk = (char const *) mmb2->ptr) != NULL) { - size = mmb2->size; - for (base = data = blk, top = data + size; data < top;) { - rsize = XDL_MIN(bsize, (long) (top - data)); - fp = xdl_adler32(0, (unsigned char const *) data, rsize); - - i = (long) XDL_HASHLONG(fp, bdf.fphbits); - for (msize = 0, brec = bdf.fphash[i]; brec; brec = brec->next) - if (brec->fp == fp) { - csize = XDL_MIN((long) (top - data), (long) (bdf.top - brec->ptr)); - for (ptr1 = brec->ptr, ptr2 = data; csize && *ptr1 == *ptr2; - csize--, ptr1++, ptr2++); - - if ((csize = (long) (ptr1 - brec->ptr)) > msize) { - moff = (long) (brec->ptr - bdf.data); - msize = csize; - } - } - - if (msize < XDL_COPYOP_SIZE) { - data++; - } else { - if (data > base) { - i = (long) (data - base); - if (i > 255) { - cpybuf[0] = XDL_BDOP_INSB; - XDL_LE32_PUT(cpybuf + 1, i); - - mb[0].ptr = (char *) cpybuf; - mb[0].size = XDL_INSBOP_SIZE; - } else { - cpybuf[0] = XDL_BDOP_INS; - cpybuf[1] = (unsigned char) i; - - mb[0].ptr = (char *) cpybuf; - mb[0].size = 2; - } - mb[1].ptr = (char *) base; - mb[1].size = i; - - if (ecb->outf(ecb->priv, mb, 2) < 0) { - - xdl_free_bdfile(&bdf); - return -1; - } - } - - data += msize; - - cpybuf[0] = XDL_BDOP_CPY; - XDL_LE32_PUT(cpybuf + 1, moff); - XDL_LE32_PUT(cpybuf + 5, msize); - - mb[0].ptr = (char *) cpybuf; - mb[0].size = XDL_COPYOP_SIZE; - - if (ecb->outf(ecb->priv, mb, 1) < 0) { - - xdl_free_bdfile(&bdf); - return -1; - } - base = data; - } - } - if (data > base) { - i = (long) (data - base); - if (i > 255) { - cpybuf[0] = XDL_BDOP_INSB; - XDL_LE32_PUT(cpybuf + 1, i); - - mb[0].ptr = (char *) cpybuf; - mb[0].size = XDL_INSBOP_SIZE; - } else { - cpybuf[0] = XDL_BDOP_INS; - cpybuf[1] = (unsigned char) i; - - mb[0].ptr = (char *) cpybuf; - mb[0].size = 2; - } - mb[1].ptr = (char *) base; - mb[1].size = i; - - if (ecb->outf(ecb->priv, mb, 2) < 0) { - - xdl_free_bdfile(&bdf); - return -1; - } - } - } - - xdl_free_bdfile(&bdf); - - return 0; -} - - -int xdl_bdiff(mmfile_t *mmf1, mmfile_t *mmf2, bdiffparam_t const *bdp, xdemitcb_t *ecb) { - mmbuffer_t mmb1, mmb2; - - if (!xdl_mmfile_iscompact(mmf1) || !xdl_mmfile_iscompact(mmf2)) { - - return -1; - } - - if ((mmb1.ptr = (char *) xdl_mmfile_first(mmf1, &mmb1.size)) == NULL) - mmb1.size = 0; - if ((mmb2.ptr = (char *) xdl_mmfile_first(mmf2, &mmb2.size)) == NULL) - mmb2.size = 0; - - return xdl_bdiff_mb(&mmb1, &mmb2, bdp, ecb); -} - - -long xdl_bdiff_tgsize(mmfile_t *mmfp) { - long tgsize = 0, size, off, csize; - char const *blk; - unsigned char const *data, *top; - - if ((blk = (char const *) xdl_mmfile_first(mmfp, &size)) == NULL || - size < XDL_BPATCH_HDR_SIZE) { - - return -1; - } - blk += XDL_BPATCH_HDR_SIZE; - size -= XDL_BPATCH_HDR_SIZE; - - do { - for (data = (unsigned char const *) blk, top = data + size; - data < top;) { - if (*data == XDL_BDOP_INS) { - data++; - csize = (long) *data++; - tgsize += csize; - data += csize; - } else if (*data == XDL_BDOP_INSB) { - data++; - XDL_LE32_GET(data, csize); - data += 4; - tgsize += csize; - data += csize; - } else if (*data == XDL_BDOP_CPY) { - data++; - XDL_LE32_GET(data, off); - data += 4; - XDL_LE32_GET(data, csize); - data += 4; - tgsize += csize; - } else { - - return -1; - } - } - } while ((blk = (char const *) xdl_mmfile_next(mmfp, &size)) != NULL); - - return tgsize; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.h deleted file mode 100644 index ff9da8d6..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbdiff.h +++ /dev/null @@ -1,40 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XBDIFF_H) -#define XBDIFF_H - - -#define XDL_BPATCH_HDR_SIZE (4 + 4) -#define XDL_MIN_BLKSIZE 16 -#define XDL_INSBOP_SIZE (1 + 4) -#define XDL_COPYOP_SIZE (1 + 4 + 4) - - - -unsigned long xdl_mmb_adler32(mmbuffer_t *mmb); -unsigned long xdl_mmf_adler32(mmfile_t *mmf); - - - -#endif /* #if !defined(XBDIFF_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbpatchi.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbpatchi.c deleted file mode 100644 index 4497b387..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xbpatchi.c +++ /dev/null @@ -1,336 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - -#define XDL_MOBF_MINALLOC 128 - - -typedef struct s_mmoffbuffer { - long off, size; - char *ptr; -} mmoffbuffer_t; - - - -static int xdl_copy_range(mmfile_t *mmf, long off, long size, xdemitcb_t *ecb) { - if (xdl_seek_mmfile(mmf, off) < 0) { - - return -1; - } - if (xdl_copy_mmfile(mmf, size, ecb) != size) { - - return -1; - } - - return 0; -} - - -int xdl_bpatch(mmfile_t *mmf, mmfile_t *mmfp, xdemitcb_t *ecb) { - long size, off, csize, osize; - unsigned long fp, ofp; - char const *blk; - unsigned char const *data, *top; - mmbuffer_t mb; - - if ((blk = (char const *) xdl_mmfile_first(mmfp, &size)) == NULL || - size < XDL_BPATCH_HDR_SIZE) { - - return -1; - } - ofp = xdl_mmf_adler32(mmf); - osize = xdl_mmfile_size(mmf); - XDL_LE32_GET(blk, fp); - XDL_LE32_GET(blk + 4, csize); - if (fp != ofp || csize != osize) { - - return -1; - } - - blk += XDL_BPATCH_HDR_SIZE; - size -= XDL_BPATCH_HDR_SIZE; - - do { - for (data = (unsigned char const *) blk, top = data + size; - data < top;) { - if (*data == XDL_BDOP_INS) { - data++; - - mb.size = (long) *data++; - mb.ptr = (char *) data; - data += mb.size; - - if (ecb->outf(ecb->priv, &mb, 1) < 0) { - - return -1; - } - } else if (*data == XDL_BDOP_INSB) { - data++; - XDL_LE32_GET(data, csize); - data += 4; - - mb.size = csize; - mb.ptr = (char *) data; - data += mb.size; - - if (ecb->outf(ecb->priv, &mb, 1) < 0) { - - return -1; - } - } else if (*data == XDL_BDOP_CPY) { - data++; - XDL_LE32_GET(data, off); - data += 4; - XDL_LE32_GET(data, csize); - data += 4; - - if (xdl_copy_range(mmf, off, csize, ecb) < 0) { - - return -1; - } - } else { - - return -1; - } - } - } while ((blk = (char const *) xdl_mmfile_next(mmfp, &size)) != NULL); - - return 0; -} - - -static unsigned long xdl_mmob_adler32(mmoffbuffer_t *obf, int n) { - unsigned long ha; - - for (ha = 0; n > 0; n--, obf++) - ha = xdl_adler32(ha, (unsigned char const *) obf->ptr, obf->size); - - return ha; -} - - -static long xdl_mmob_size(mmoffbuffer_t *obf, int n) { - - return n > 0 ? obf[n - 1].off + obf[n - 1].size: 0; -} - - -static mmoffbuffer_t *xdl_mmob_new(mmoffbuffer_t **probf, int *pnobf, int *paobf) { - int aobf; - mmoffbuffer_t *cobf, *rrobf; - - if (*pnobf >= *paobf) { - aobf = 2 * (*paobf) + 1; - if ((rrobf = (mmoffbuffer_t *) - xdl_realloc(*probf, aobf * sizeof(mmoffbuffer_t))) == NULL) { - - return NULL; - } - *probf = rrobf; - *paobf = aobf; - } - cobf = (*probf) + (*pnobf); - (*pnobf)++; - - return cobf; -} - - -static int xdl_mmob_find_cntr(mmoffbuffer_t *obf, int n, long off) { - int i, lo, hi; - - for (lo = -1, hi = n; hi - lo > 1;) { - i = (hi + lo) / 2; - if (off < obf[i].off) - hi = i; - else - lo = i; - } - - return (lo >= 0 && off >= obf[lo].off && off < obf[lo].off + obf[lo].size) ? lo: -1; -} - - -static int xdl_bmerge(mmoffbuffer_t *obf, int n, mmbuffer_t *mbfp, mmoffbuffer_t **probf, - int *pnobf) { - int i, aobf, nobf; - long ooff, off, csize; - unsigned long fp, ofp; - unsigned char const *data, *top; - mmoffbuffer_t *robf, *cobf; - - if (mbfp->size < XDL_BPATCH_HDR_SIZE) { - - return -1; - } - data = (unsigned char const *) mbfp->ptr; - top = data + mbfp->size; - - ofp = xdl_mmob_adler32(obf, n); - XDL_LE32_GET(data, fp); - data += 4; - XDL_LE32_GET(data, csize); - data += 4; - if (fp != ofp || csize != xdl_mmob_size(obf, n)) { - - return -1; - } - aobf = XDL_MOBF_MINALLOC; - nobf = 0; - if ((robf = (mmoffbuffer_t *) xdl_malloc(aobf * sizeof(mmoffbuffer_t))) == NULL) { - - return -1; - } - - for (ooff = 0; data < top;) { - if (*data == XDL_BDOP_INS) { - data++; - - if ((cobf = xdl_mmob_new(&robf, &nobf, &aobf)) == NULL) { - - xdl_free(robf); - return -1; - } - cobf->off = ooff; - cobf->size = (long) *data++; - cobf->ptr = (char *) data; - - data += cobf->size; - ooff += cobf->size; - } else if (*data == XDL_BDOP_INSB) { - data++; - XDL_LE32_GET(data, csize); - data += 4; - - if ((cobf = xdl_mmob_new(&robf, &nobf, &aobf)) == NULL) { - - xdl_free(robf); - return -1; - } - cobf->off = ooff; - cobf->size = csize; - cobf->ptr = (char *) data; - - data += cobf->size; - ooff += cobf->size; - } else if (*data == XDL_BDOP_CPY) { - data++; - XDL_LE32_GET(data, off); - data += 4; - XDL_LE32_GET(data, csize); - data += 4; - - if ((i = xdl_mmob_find_cntr(obf, n, off)) < 0) { - - xdl_free(robf); - return -1; - } - off -= obf[i].off; - for (; i < n && csize > 0; i++, off = 0) { - if ((cobf = xdl_mmob_new(&robf, &nobf, &aobf)) == NULL) { - - xdl_free(robf); - return -1; - } - cobf->off = ooff; - cobf->size = XDL_MIN(csize, obf[i].size - off); - cobf->ptr = obf[i].ptr + off; - - ooff += cobf->size; - csize -= cobf->size; - } - if (csize > 0) { - - xdl_free(robf); - return -1; - } - } else { - - xdl_free(robf); - return -1; - } - } - *probf = robf; - *pnobf = nobf; - - return 0; -} - - -static int xdl_bmerge_synt(mmoffbuffer_t *obf, int n, xdemitcb_t *ecb) { - int i; - mmbuffer_t *mb; - - if ((mb = (mmbuffer_t *) xdl_malloc(n * sizeof(mmbuffer_t))) == NULL) { - - return -1; - } - for (i = 0; i < n; i++) { - mb[i].ptr = obf[i].ptr; - mb[i].size = obf[i].size; - } - if (ecb->outf(ecb->priv, mb, n) < 0) { - - xdl_free(mb); - return -1; - } - xdl_free(mb); - - return 0; -} - - -int xdl_bpatch_multi(mmbuffer_t *base, mmbuffer_t *mbpch, int n, xdemitcb_t *ecb) { - int i, nobf, fnobf; - mmoffbuffer_t *obf, *fobf; - - nobf = 1; - if ((obf = (mmoffbuffer_t *) xdl_malloc(nobf * sizeof(mmoffbuffer_t))) == NULL) { - - return -1; - } - obf->off = 0; - obf->ptr = base->ptr; - obf->size = base->size; - for (i = 0; i < n; i++) { - if (xdl_bmerge(obf, nobf, &mbpch[i], &fobf, &fnobf) < 0) { - - xdl_free(obf); - return -1; - } - xdl_free(obf); - - obf = fobf; - nobf = fnobf; - } - if (xdl_bmerge_synt(obf, nobf, ecb) < 0) { - - xdl_free(obf); - return -1; - } - xdl_free(obf); - - return 0; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiff.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiff.h deleted file mode 100644 index 9e42492e..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiff.h +++ /dev/null @@ -1,144 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XDIFF_H) -#define XDIFF_H - -#ifdef __cplusplus -extern "C" { -#endif /* #ifdef __cplusplus */ - -#ifdef _WIN32 - #ifdef LIBXDIFF_DLL_EXPORT - #define LIBXDIFF_EXPORT __declspec(dllexport) - #else - #define LIBXDIFF_EXPORT __declspec(dllimport) - #endif -#else - #define LIBXDIFF_EXPORT -#endif - -#define XDF_NEED_MINIMAL (1 << 1) - -#define XDL_PATCH_NORMAL '-' -#define XDL_PATCH_REVERSE '+' -#define XDL_PATCH_MODEMASK ((1 << 8) - 1) -#define XDL_PATCH_IGNOREBSPACE (1 << 8) - -#define XDL_MMB_READONLY (1 << 0) - -#define XDL_MMF_ATOMIC (1 << 0) - -#define XDL_BDOP_INS 1 -#define XDL_BDOP_CPY 2 -#define XDL_BDOP_INSB 3 - - - -LIBXDIFF_EXPORT typedef struct s_memallocator { - void *priv; - void *(*malloc)(void *, unsigned int); - void (*free)(void *, void *); - void *(*realloc)(void *, void *, unsigned int); -} memallocator_t; - -LIBXDIFF_EXPORT typedef struct s_mmblock { - struct s_mmblock *next; - unsigned long flags; - long size, bsize; - char *ptr; -} mmblock_t; - -LIBXDIFF_EXPORT typedef struct s_mmfile { - unsigned long flags; - mmblock_t *head, *tail; - long bsize, fsize, rpos; - mmblock_t *rcur, *wcur; -} mmfile_t; - -LIBXDIFF_EXPORT typedef struct s_mmbuffer { - char *ptr; - long size; -} mmbuffer_t; - -LIBXDIFF_EXPORT typedef struct s_xpparam { - unsigned long flags; -} xpparam_t; - -LIBXDIFF_EXPORT typedef struct s_xdemitcb { - void *priv; - int (*outf)(void *, mmbuffer_t *, int); -} xdemitcb_t; - -LIBXDIFF_EXPORT typedef struct s_xdemitconf { - long ctxlen; -} xdemitconf_t; - -LIBXDIFF_EXPORT typedef struct s_bdiffparam { - long bsize; -} bdiffparam_t; - - -LIBXDIFF_EXPORT int xdl_set_allocator(memallocator_t const *malt); -LIBXDIFF_EXPORT void *xdl_malloc(unsigned int size); -LIBXDIFF_EXPORT void xdl_free(void *ptr); -LIBXDIFF_EXPORT void *xdl_realloc(void *ptr, unsigned int size); - -LIBXDIFF_EXPORT int xdl_init_mmfile(mmfile_t *mmf, long bsize, unsigned long flags); -LIBXDIFF_EXPORT void xdl_free_mmfile(mmfile_t *mmf); -LIBXDIFF_EXPORT int xdl_mmfile_iscompact(mmfile_t *mmf); -LIBXDIFF_EXPORT int xdl_seek_mmfile(mmfile_t *mmf, long off); -LIBXDIFF_EXPORT long xdl_read_mmfile(mmfile_t *mmf, void *data, long size); -LIBXDIFF_EXPORT long xdl_write_mmfile(mmfile_t *mmf, void const *data, long size); -LIBXDIFF_EXPORT long xdl_writem_mmfile(mmfile_t *mmf, mmbuffer_t *mb, int nbuf); -LIBXDIFF_EXPORT void *xdl_mmfile_writeallocate(mmfile_t *mmf, long size); -LIBXDIFF_EXPORT long xdl_mmfile_ptradd(mmfile_t *mmf, char *ptr, long size, unsigned long flags); -LIBXDIFF_EXPORT long xdl_copy_mmfile(mmfile_t *mmf, long size, xdemitcb_t *ecb); -LIBXDIFF_EXPORT void *xdl_mmfile_first(mmfile_t *mmf, long *size); -LIBXDIFF_EXPORT void *xdl_mmfile_next(mmfile_t *mmf, long *size); -LIBXDIFF_EXPORT long xdl_mmfile_size(mmfile_t *mmf); -LIBXDIFF_EXPORT int xdl_mmfile_cmp(mmfile_t *mmf1, mmfile_t *mmf2); -LIBXDIFF_EXPORT int xdl_mmfile_compact(mmfile_t *mmfo, mmfile_t *mmfc, long bsize, unsigned long flags); - -LIBXDIFF_EXPORT int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdemitconf_t const *xecfg, xdemitcb_t *ecb); -LIBXDIFF_EXPORT int xdl_patch(mmfile_t *mf, mmfile_t *mfp, int mode, xdemitcb_t *ecb, - xdemitcb_t *rjecb); - -LIBXDIFF_EXPORT int xdl_merge3(mmfile_t *mmfo, mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb, - xdemitcb_t *rjecb); - -LIBXDIFF_EXPORT int xdl_bdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, bdiffparam_t const *bdp, xdemitcb_t *ecb); -LIBXDIFF_EXPORT int xdl_bdiff(mmfile_t *mmf1, mmfile_t *mmf2, bdiffparam_t const *bdp, xdemitcb_t *ecb); -LIBXDIFF_EXPORT int xdl_rabdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, xdemitcb_t *ecb); -LIBXDIFF_EXPORT int xdl_rabdiff(mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb); -LIBXDIFF_EXPORT long xdl_bdiff_tgsize(mmfile_t *mmfp); -LIBXDIFF_EXPORT int xdl_bpatch(mmfile_t *mmf, mmfile_t *mmfp, xdemitcb_t *ecb); -LIBXDIFF_EXPORT int xdl_bpatch_multi(mmbuffer_t *base, mmbuffer_t *mbpch, int n, xdemitcb_t *ecb); - - -#ifdef __cplusplus -} -#endif /* #ifdef __cplusplus */ - -#endif /* #if !defined(XDIFF_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.c deleted file mode 100644 index 8537bc95..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.c +++ /dev/null @@ -1,556 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - - -#define XDL_MAX_COST_MIN 256 -#define XDL_HEUR_MIN_COST 256 -#define XDL_LINE_MAX (long)((1UL << (8 * sizeof(long) - 1)) - 1) -#define XDL_SNAKE_CNT 20 -#define XDL_K_HEUR 4 - - - -typedef struct s_xdpsplit { - long i1, i2; - int min_lo, min_hi; -} xdpsplit_t; - - - -/* - * See "An O(ND) Difference Algorithm and its Variations", by Eugene Myers. - * Basically considers a "box" (off1, off2, lim1, lim2) and scan from both - * the forward diagonal starting from (off1, off2) and the backward diagonal - * starting from (lim1, lim2). If the K values on the same diagonal crosses - * returns the furthest point of reach. We might end up having to expensive - * cases using this algorithm is full, so a little bit of heuristic is needed - * to cut the search and to return a suboptimal point. - */ -static long xdl_split(unsigned long const *ha1, long off1, long lim1, - unsigned long const *ha2, long off2, long lim2, - long *kvdf, long *kvdb, int need_min, xdpsplit_t *spl, - xdalgoenv_t *xenv) { - long dmin = off1 - lim2, dmax = lim1 - off2; - long fmid = off1 - off2, bmid = lim1 - lim2; - long odd = (fmid - bmid) & 1; - long fmin = fmid, fmax = fmid; - long bmin = bmid, bmax = bmid; - long ec, d, i1, i2, prev1, best, dd, v, k; - - /* - * Set initial diagonal values for both forward and backward path. - */ - kvdf[fmid] = off1; - kvdb[bmid] = lim1; - - for (ec = 1;; ec++) { - int got_snake = 0; - - /* - * We need to extent the diagonal "domain" by one. If the next - * values exits the box boundaries we need to change it in the - * opposite direction because (max - min) must be a power of two. - * Also we initialize the extenal K value to -1 so that we can - * avoid extra conditions check inside the core loop. - */ - if (fmin > dmin) - kvdf[--fmin - 1] = -1; - else - ++fmin; - if (fmax < dmax) - kvdf[++fmax + 1] = -1; - else - --fmax; - - for (d = fmax; d >= fmin; d -= 2) { - if (kvdf[d - 1] >= kvdf[d + 1]) - i1 = kvdf[d - 1] + 1; - else - i1 = kvdf[d + 1]; - prev1 = i1; - i2 = i1 - d; - for (; i1 < lim1 && i2 < lim2 && ha1[i1] == ha2[i2]; i1++, i2++); - if (i1 - prev1 > xenv->snake_cnt) - got_snake = 1; - kvdf[d] = i1; - if (odd && bmin <= d && d <= bmax && kvdb[d] <= i1) { - spl->i1 = i1; - spl->i2 = i2; - spl->min_lo = spl->min_hi = 1; - return ec; - } - } - - /* - * We need to extent the diagonal "domain" by one. If the next - * values exits the box boundaries we need to change it in the - * opposite direction because (max - min) must be a power of two. - * Also we initialize the extenal K value to -1 so that we can - * avoid extra conditions check inside the core loop. - */ - if (bmin > dmin) - kvdb[--bmin - 1] = XDL_LINE_MAX; - else - ++bmin; - if (bmax < dmax) - kvdb[++bmax + 1] = XDL_LINE_MAX; - else - --bmax; - - for (d = bmax; d >= bmin; d -= 2) { - if (kvdb[d - 1] < kvdb[d + 1]) - i1 = kvdb[d - 1]; - else - i1 = kvdb[d + 1] - 1; - prev1 = i1; - i2 = i1 - d; - for (; i1 > off1 && i2 > off2 && ha1[i1 - 1] == ha2[i2 - 1]; i1--, i2--); - if (prev1 - i1 > xenv->snake_cnt) - got_snake = 1; - kvdb[d] = i1; - if (!odd && fmin <= d && d <= fmax && i1 <= kvdf[d]) { - spl->i1 = i1; - spl->i2 = i2; - spl->min_lo = spl->min_hi = 1; - return ec; - } - } - - if (need_min) - continue; - - /* - * If the edit cost is above the heuristic trigger and if - * we got a good snake, we sample current diagonals to see - * if some of the, have reached an "interesting" path. Our - * measure is a function of the distance from the diagonal - * corner (i1 + i2) penalized with the distance from the - * mid diagonal itself. If this value is above the current - * edit cost times a magic factor (XDL_K_HEUR) we consider - * it interesting. - */ - if (got_snake && ec > xenv->heur_min) { - for (best = 0, d = fmax; d >= fmin; d -= 2) { - dd = d > fmid ? d - fmid: fmid - d; - i1 = kvdf[d]; - i2 = i1 - d; - v = (i1 - off1) + (i2 - off2) - dd; - - if (v > XDL_K_HEUR * ec && v > best && - off1 + xenv->snake_cnt <= i1 && i1 < lim1 && - off2 + xenv->snake_cnt <= i2 && i2 < lim2) { - for (k = 1; ha1[i1 - k] == ha2[i2 - k]; k++) - if (k == xenv->snake_cnt) { - best = v; - spl->i1 = i1; - spl->i2 = i2; - break; - } - } - } - if (best > 0) { - spl->min_lo = 1; - spl->min_hi = 0; - return ec; - } - - for (best = 0, d = bmax; d >= bmin; d -= 2) { - dd = d > bmid ? d - bmid: bmid - d; - i1 = kvdb[d]; - i2 = i1 - d; - v = (lim1 - i1) + (lim2 - i2) - dd; - - if (v > XDL_K_HEUR * ec && v > best && - off1 < i1 && i1 <= lim1 - xenv->snake_cnt && - off2 < i2 && i2 <= lim2 - xenv->snake_cnt) { - for (k = 0; ha1[i1 + k] == ha2[i2 + k]; k++) - if (k == xenv->snake_cnt - 1) { - best = v; - spl->i1 = i1; - spl->i2 = i2; - break; - } - } - } - if (best > 0) { - spl->min_lo = 0; - spl->min_hi = 1; - return ec; - } - } - - /* - * Enough is enough. We spent too much time here and now we collect - * the furthest reaching path using the (i1 + i2) measure. - */ - if (ec >= xenv->mxcost) { - long fbest, fbest1, bbest, bbest1; - - fbest = -1; - for (d = fmax; d >= fmin; d -= 2) { - i1 = XDL_MIN(kvdf[d], lim1); - i2 = i1 - d; - if (lim2 < i2) - i1 = lim2 + d, i2 = lim2; - if (fbest < i1 + i2) { - fbest = i1 + i2; - fbest1 = i1; - } - } - - bbest = XDL_LINE_MAX; - for (d = bmax; d >= bmin; d -= 2) { - i1 = XDL_MAX(off1, kvdb[d]); - i2 = i1 - d; - if (i2 < off2) - i1 = off2 + d, i2 = off2; - if (i1 + i2 < bbest) { - bbest = i1 + i2; - bbest1 = i1; - } - } - - if ((lim1 + lim2) - bbest < fbest - (off1 + off2)) { - spl->i1 = fbest1; - spl->i2 = fbest - fbest1; - spl->min_lo = 1; - spl->min_hi = 0; - } else { - spl->i1 = bbest1; - spl->i2 = bbest - bbest1; - spl->min_lo = 0; - spl->min_hi = 1; - } - return ec; - } - } - - return -1; -} - - -/* - * Rule: "Divide et Impera". Recursively split the box in sub-boxes by calling - * the box splitting function. Note that the real job (marking changed lines) - * is done in the two boundary reaching checks. - */ -int xdl_recs_cmp(diffdata_t *dd1, long off1, long lim1, - diffdata_t *dd2, long off2, long lim2, - long *kvdf, long *kvdb, int need_min, xdalgoenv_t *xenv) { - unsigned long const *ha1 = dd1->ha, *ha2 = dd2->ha; - - /* - * Shrink the box by walking through each diagonal snake (SW and NE). - */ - for (; off1 < lim1 && off2 < lim2 && ha1[off1] == ha2[off2]; off1++, off2++); - for (; off1 < lim1 && off2 < lim2 && ha1[lim1 - 1] == ha2[lim2 - 1]; lim1--, lim2--); - - /* - * If one dimension is empty, then all records on the other one must - * be obviously changed. - */ - if (off1 == lim1) { - char *rchg2 = dd2->rchg; - long *rindex2 = dd2->rindex; - - for (; off2 < lim2; off2++) - rchg2[rindex2[off2]] = 1; - } else if (off2 == lim2) { - char *rchg1 = dd1->rchg; - long *rindex1 = dd1->rindex; - - for (; off1 < lim1; off1++) - rchg1[rindex1[off1]] = 1; - } else { - long ec; - xdpsplit_t spl; - - /* - * Divide ... - */ - if ((ec = xdl_split(ha1, off1, lim1, ha2, off2, lim2, kvdf, kvdb, - need_min, &spl, xenv)) < 0) { - - return -1; - } - - /* - * ... et Impera. - */ - if (xdl_recs_cmp(dd1, off1, spl.i1, dd2, off2, spl.i2, - kvdf, kvdb, spl.min_lo, xenv) < 0 || - xdl_recs_cmp(dd1, spl.i1, lim1, dd2, spl.i2, lim2, - kvdf, kvdb, spl.min_hi, xenv) < 0) { - - return -1; - } - } - - return 0; -} - - -int xdl_do_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdfenv_t *xe) { - long ndiags; - long *kvd, *kvdf, *kvdb; - xdalgoenv_t xenv; - diffdata_t dd1, dd2; - - if (xdl_prepare_env(mf1, mf2, xpp, xe) < 0) { - - return -1; - } - - /* - * Allocate and setup K vectors to be used by the differential algorithm. - * One is to store the forward path and one to store the backward path. - */ - ndiags = xe->xdf1.nreff + xe->xdf2.nreff + 3; - if (!(kvd = (long *) xdl_malloc((2 * ndiags + 2) * sizeof(long)))) { - - xdl_free_env(xe); - return -1; - } - kvdf = kvd; - kvdb = kvdf + ndiags; - kvdf += xe->xdf2.nreff + 1; - kvdb += xe->xdf2.nreff + 1; - - xenv.mxcost = xdl_bogosqrt(ndiags); - if (xenv.mxcost < XDL_MAX_COST_MIN) - xenv.mxcost = XDL_MAX_COST_MIN; - xenv.snake_cnt = XDL_SNAKE_CNT; - xenv.heur_min = XDL_HEUR_MIN_COST; - - dd1.nrec = xe->xdf1.nreff; - dd1.ha = xe->xdf1.ha; - dd1.rchg = xe->xdf1.rchg; - dd1.rindex = xe->xdf1.rindex; - dd2.nrec = xe->xdf2.nreff; - dd2.ha = xe->xdf2.ha; - dd2.rchg = xe->xdf2.rchg; - dd2.rindex = xe->xdf2.rindex; - - if (xdl_recs_cmp(&dd1, 0, dd1.nrec, &dd2, 0, dd2.nrec, - kvdf, kvdb, (xpp->flags & XDF_NEED_MINIMAL) != 0, &xenv) < 0) { - - xdl_free(kvd); - xdl_free_env(xe); - return -1; - } - - xdl_free(kvd); - - return 0; -} - - -static xdchange_t *xdl_add_change(xdchange_t *xscr, long i1, long i2, long chg1, long chg2) { - xdchange_t *xch; - - if (!(xch = (xdchange_t *) xdl_malloc(sizeof(xdchange_t)))) - return NULL; - - xch->next = xscr; - xch->i1 = i1; - xch->i2 = i2; - xch->chg1 = chg1; - xch->chg2 = chg2; - - return xch; -} - - -static int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo) { - long ix, ixo, ixs, ixref, grpsiz, nrec = xdf->nrec; - char *rchg = xdf->rchg, *rchgo = xdfo->rchg; - xrecord_t **recs = xdf->recs; - - /* - * This is the same of what GNU diff does. Move back and forward - * change groups for a consistent and pretty diff output. This also - * helps in finding joineable change groups and reduce the diff size. - */ - for (ix = ixo = 0;;) { - /* - * Find the first changed line in the to-be-compacted file. - * We need to keep track of both indexes, so if we find a - * changed lines group on the other file, while scanning the - * to-be-compacted file, we need to skip it properly. Note - * that loops that are testing for changed lines on rchg* do - * not need index bounding since the array is prepared with - * a zero at position -1 and N. - */ - for (; ix < nrec && !rchg[ix]; ix++) - while (rchgo[ixo++]); - if (ix == nrec) - break; - - /* - * Record the start of a changed-group in the to-be-compacted file - * and find the end of it, on both to-be-compacted and other file - * indexes (ix and ixo). - */ - ixs = ix; - for (ix++; rchg[ix]; ix++); - for (; rchgo[ixo]; ixo++); - - do { - grpsiz = ix - ixs; - - /* - * If the line before the current change group, is equal to - * the last line of the current change group, shift backward - * the group. - */ - while (ixs > 0 && recs[ixs - 1]->ha == recs[ix - 1]->ha && - XDL_RECMATCH(recs[ixs - 1], recs[ix - 1])) { - rchg[--ixs] = 1; - rchg[--ix] = 0; - - /* - * This change might have joined two change groups, - * so we try to take this scenario in account by moving - * the start index accordingly (and so the other-file - * end-of-group index). - */ - for (; rchg[ixs - 1]; ixs--); - while (rchgo[--ixo]); - } - - /* - * Record the end-of-group position in case we are matched - * with a group of changes in the other file (that is, the - * change record before the enf-of-group index in the other - * file is set). - */ - ixref = rchgo[ixo - 1] ? ix: nrec; - - /* - * If the first line of the current change group, is equal to - * the line next of the current change group, shift forward - * the group. - */ - while (ix < nrec && recs[ixs]->ha == recs[ix]->ha && - XDL_RECMATCH(recs[ixs], recs[ix])) { - rchg[ixs++] = 0; - rchg[ix++] = 1; - - /* - * This change might have joined two change groups, - * so we try to take this scenario in account by moving - * the start index accordingly (and so the other-file - * end-of-group index). Keep tracking the reference - * index in case we are shifting together with a - * corresponding group of changes in the other file. - */ - for (; rchg[ix]; ix++); - while (rchgo[++ixo]) - ixref = ix; - } - } while (grpsiz != ix - ixs); - - /* - * Try to move back the possibly merged group of changes, to match - * the recorded postion in the other file. - */ - while (ixref < ix) { - rchg[--ixs] = 1; - rchg[--ix] = 0; - while (rchgo[--ixo]); - } - } - - return 0; -} - - -int xdl_build_script(xdfenv_t *xe, xdchange_t **xscr) { - xdchange_t *cscr = NULL, *xch; - char *rchg1 = xe->xdf1.rchg, *rchg2 = xe->xdf2.rchg; - long i1, i2, l1, l2; - - /* - * Trivial. Collects "groups" of changes and creates an edit script. - */ - for (i1 = xe->xdf1.nrec, i2 = xe->xdf2.nrec; i1 >= 0 || i2 >= 0; i1--, i2--) - if (rchg1[i1 - 1] || rchg2[i2 - 1]) { - for (l1 = i1; rchg1[i1 - 1]; i1--); - for (l2 = i2; rchg2[i2 - 1]; i2--); - - if (!(xch = xdl_add_change(cscr, i1, i2, l1 - i1, l2 - i2))) { - xdl_free_script(cscr); - return -1; - } - cscr = xch; - } - - *xscr = cscr; - - return 0; -} - - -void xdl_free_script(xdchange_t *xscr) { - xdchange_t *xch; - - while ((xch = xscr) != NULL) { - xscr = xscr->next; - xdl_free(xch); - } -} - - -int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdemitconf_t const *xecfg, xdemitcb_t *ecb) { - xdchange_t *xscr; - xdfenv_t xe; - - if (xdl_do_diff(mf1, mf2, xpp, &xe) < 0) { - - return -1; - } - if (xdl_change_compact(&xe.xdf1, &xe.xdf2) < 0 || - xdl_change_compact(&xe.xdf2, &xe.xdf1) < 0 || - xdl_build_script(&xe, &xscr) < 0) { - - xdl_free_env(&xe); - return -1; - } - if (xscr) { - if (xdl_emit_diff(&xe, xscr, ecb, xecfg) < 0) { - - xdl_free_script(xscr); - xdl_free_env(&xe); - return -1; - } - xdl_free_script(xscr); - } - xdl_free_env(&xe); - - return 0; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.h deleted file mode 100644 index dd8f3c98..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xdiffi.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XDIFFI_H) -#define XDIFFI_H - - -typedef struct s_diffdata { - long nrec; - unsigned long const *ha; - long *rindex; - char *rchg; -} diffdata_t; - -typedef struct s_xdalgoenv { - long mxcost; - long snake_cnt; - long heur_min; -} xdalgoenv_t; - -typedef struct s_xdchange { - struct s_xdchange *next; - long i1, i2; - long chg1, chg2; -} xdchange_t; - - - -int xdl_recs_cmp(diffdata_t *dd1, long off1, long lim1, - diffdata_t *dd2, long off2, long lim2, - long *kvdf, long *kvdb, int need_min, xdalgoenv_t *xenv); -int xdl_do_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdfenv_t *xe); -int xdl_build_script(xdfenv_t *xe, xdchange_t **xscr); -void xdl_free_script(xdchange_t *xscr); -int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb, - xdemitconf_t const *xecfg); - - -#endif /* #if !defined(XDIFFI_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.c deleted file mode 100644 index 51580aa6..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - -static long xdl_get_rec(xdfile_t *xdf, long ri, char const **rec) { - - *rec = xdf->recs[ri]->ptr; - - return xdf->recs[ri]->size; -} - - -static int xdl_emit_record(xdfile_t *xdf, long ri, char const *pre, xdemitcb_t *ecb) { - long size, psize = strlen(pre); - char const *rec; - - size = xdl_get_rec(xdf, ri, &rec); - if (xdl_emit_diffrec(rec, size, pre, psize, ecb) < 0) { - - return -1; - } - - return 0; -} - - -/* - * Starting at the passed change atom, find the latest change atom to be included - * inside the differential hunk according to the specified configuration. - */ -static xdchange_t *xdl_get_hunk(xdchange_t *xscr, xdemitconf_t const *xecfg) { - xdchange_t *xch, *xchp; - - for (xchp = xscr, xch = xscr->next; xch; xchp = xch, xch = xch->next) - if (xch->i1 - (xchp->i1 + xchp->chg1) > 2 * xecfg->ctxlen) - break; - - return xchp; -} - - -int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb, - xdemitconf_t const *xecfg) { - long s1, s2, e1, e2, lctx; - xdchange_t *xch, *xche; - - for (xch = xche = xscr; xch; xch = xche->next) { - xche = xdl_get_hunk(xch, xecfg); - - s1 = XDL_MAX(xch->i1 - xecfg->ctxlen, 0); - s2 = XDL_MAX(xch->i2 - xecfg->ctxlen, 0); - - lctx = xecfg->ctxlen; - lctx = XDL_MIN(lctx, xe->xdf1.nrec - (xche->i1 + xche->chg1)); - lctx = XDL_MIN(lctx, xe->xdf2.nrec - (xche->i2 + xche->chg2)); - - e1 = xche->i1 + xche->chg1 + lctx; - e2 = xche->i2 + xche->chg2 + lctx; - - /* - * Emit current hunk header. - */ - if (xdl_emit_hunk_hdr(s1 + 1, e1 - s1, s2 + 1, e2 - s2, ecb) < 0) - return -1; - - /* - * Emit pre-context. - */ - for (; s1 < xch->i1; s1++) - if (xdl_emit_record(&xe->xdf1, s1, " ", ecb) < 0) - return -1; - - for (s1 = xch->i1, s2 = xch->i2;; xch = xch->next) { - /* - * Merge previous with current change atom. - */ - for (; s1 < xch->i1 && s2 < xch->i2; s1++, s2++) - if (xdl_emit_record(&xe->xdf1, s1, " ", ecb) < 0) - return -1; - - /* - * Removes lines from the first file. - */ - for (s1 = xch->i1; s1 < xch->i1 + xch->chg1; s1++) - if (xdl_emit_record(&xe->xdf1, s1, "-", ecb) < 0) - return -1; - - /* - * Adds lines from the second file. - */ - for (s2 = xch->i2; s2 < xch->i2 + xch->chg2; s2++) - if (xdl_emit_record(&xe->xdf2, s2, "+", ecb) < 0) - return -1; - - if (xch == xche) - break; - s1 = xch->i1 + xch->chg1; - s2 = xch->i2 + xch->chg2; - } - - /* - * Emit post-context. - */ - for (s1 = xche->i1 + xche->chg1; s1 < e1; s1++) - if (xdl_emit_record(&xe->xdf1, s1, " ", ecb) < 0) - return -1; - } - - return 0; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.h deleted file mode 100644 index e629417d..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xemit.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XEMIT_H) -#define XEMIT_H - - - -int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb, - xdemitconf_t const *xecfg); - - - -#endif /* #if !defined(XEMIT_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xinclude.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xinclude.h deleted file mode 100644 index bd22cd22..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xinclude.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XINCLUDE_H) -#define XINCLUDE_H - - -#if defined(HAVE_WINCONFIG_H) -#include "winconfig.h" -#endif /* #if defined(HAVE_CONFIG_H) */ - -#if defined(HAVE_CONFIG_H) -#include "config.h" -#endif /* #if defined(HAVE_CONFIG_H) */ - -#if defined(HAVE_STDIO_H) -#include -#endif /* #if defined(HAVE_STDIO_H) */ - -#if defined(HAVE_STDLIB_H) -#include -#endif /* #if defined(HAVE_STDLIB_H) */ - -#if defined(HAVE_UNISTD_H) -#include -#endif /* #if defined(HAVE_UNISTD_H) */ - -#if defined(HAVE_STRING_H) -#include -#endif /* #if defined(HAVE_STRING_H) */ - -#if defined(HAVE_LIMITS_H) -#include -#endif /* #if defined(HAVE_LIMITS_H) */ - - - -#include "xmacros.h" -#include "xmissing.h" -#include "xdiff.h" -#include "xtypes.h" -#include "xutils.h" -#include "xadler32.h" -#include "xprepare.h" -#include "xdiffi.h" -#include "xemit.h" -#include "xbdiff.h" - - - -#endif /* #if !defined(XINCLUDE_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmacros.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmacros.h deleted file mode 100644 index 43607f17..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmacros.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XMACROS_H) -#define XMACROS_H - - -#define XDL_MIN(a, b) ((a) < (b) ? (a): (b)) -#define XDL_MAX(a, b) ((a) > (b) ? (a): (b)) -#define XDL_ABS(v) ((v) >= 0 ? (v): -(v)) -#define XDL_ISDIGIT(c) ((c) >= '0' && (c) <= '9') -#define XDL_ADDBITS(v, b) ((v) + ((v) >> (b))) -#define XDL_MASKBITS(b) ((1UL << (b)) - 1) -#define XDL_HASHLONG(v, b) (XDL_ADDBITS((unsigned long) (v), b) & XDL_MASKBITS(b)) -#define XDL_PTRFREE(p) do { if (p) { xdl_free(p); (p) = NULL; } } while (0) -#define XDL_RECMATCH(r1, r2) ((r1)->size == (r2)->size && memcmp((r1)->ptr, (r2)->ptr, (r1)->size) == 0) -#define XDL_LE32_PUT(p, v) do { \ - unsigned char *__p = (unsigned char *) (p); \ - *__p++ = (unsigned char) (v); \ - *__p++ = (unsigned char) ((v) >> 8); \ - *__p++ = (unsigned char) ((v) >> 16); \ - *__p = (unsigned char) ((v) >> 24); \ -} while (0) -#define XDL_LE32_GET(p, v) do { \ - unsigned char const *__p = (unsigned char const *) (p); \ - (v) = (unsigned long) __p[0] | ((unsigned long) __p[1]) << 8 | \ - ((unsigned long) __p[2]) << 16 | ((unsigned long) __p[3]) << 24; \ -} while (0) - - -#endif /* #if !defined(XMACROS_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmerge3.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmerge3.c deleted file mode 100644 index 6f7cf7b7..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmerge3.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - -#define XDL_MERGE3_BLKSIZE (1024 * 8) -#define XDL_MERGE3_CTXLEN 3 - - - -int xdl_merge3(mmfile_t *mmfo, mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb, - xdemitcb_t *rjecb) { - xpparam_t xpp; - xdemitconf_t xecfg; - xdemitcb_t xecb; - mmfile_t mmfp; - - if (xdl_init_mmfile(&mmfp, XDL_MERGE3_BLKSIZE, XDL_MMF_ATOMIC) < 0) { - - return -1; - } - - xpp.flags = 0; - - xecfg.ctxlen = XDL_MERGE3_CTXLEN; - - xecb.priv = &mmfp; - xecb.outf = xdl_mmfile_outf; - - if (xdl_diff(mmfo, mmf2, &xpp, &xecfg, &xecb) < 0) { - - xdl_free_mmfile(&mmfp); - return -1; - } - - if (xdl_patch(mmf1, &mmfp, XDL_PATCH_NORMAL, ecb, rjecb) < 0) { - - xdl_free_mmfile(&mmfp); - return -1; - } - - xdl_free_mmfile(&mmfp); - - return 0; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.c deleted file mode 100644 index cefe3362..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - - -#if !defined(HAVE_MEMCHR) - -void *memchr(void const *p, int c, long n) { - char const *pc = p; - - for (; n; n--, pc++) - if (*pc == (char) c) - return pc; - return NULL; -} - -#endif /* #if !defined(HAVE_MEMCHR) */ - - -#if !defined(HAVE_MEMCMP) - -int memcmp(void const *p1, void const *p2, long n) { - char const *pc1 = p1, *pc2 = p2; - - for (; n; n--, pc1++, pc2++) - if (*pc1 != *pc2) - return *pc1 - *pc2; - return 0; -} - -#endif /* #if !defined(HAVE_MEMCMP) */ - - -#if !defined(HAVE_MEMCPY) - -void *memcpy(void *d, void const *s, long n) { - char *dc = d; - char const *sc = s; - - for (; n; n--, dc++, sc++) - *dc = *sc; - return d; -} - -#endif /* #if !defined(HAVE_MEMCPY) */ - - -#if !defined(HAVE_MEMSET) - -void *memset(void *d, int c, long n) { - char *dc = d; - - for (; n; n--, dc++) - *dc = (char) c; - return d; -} - -#endif /* #if !defined(HAVE_MEMSET) */ - - -#if !defined(HAVE_STRLEN) - -long strlen(char const *s) { - char const *tmp; - - for (tmp = s; *s; s++); - return (long) (s - tmp); -} - -#endif /* #if !defined(HAVE_STRLEN) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.h deleted file mode 100644 index 8fcb050e..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xmissing.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XMISSING_H) -#define XMISSING_H - - -#if !defined(CHAR_BIT) -#define CHAR_BIT 8 -#endif /* #if !defined(CHAR_BIT) */ - - - -#if !defined(HAVE_MEMCHR) -void *memchr(void const *p, int c, long n); -#endif /* #if !defined(HAVE_MEMCHR) */ - -#if !defined(HAVE_MEMCMP) -int memcmp(void const *p1, void const *p2, long n); -#endif /* #if !defined(HAVE_MEMCMP) */ - -#if !defined(HAVE_MEMCPY) -void *memcpy(void *d, void const *s, long n); -#endif /* #if !defined(HAVE_MEMCPY) */ - -#if !defined(HAVE_MEMSET) -void *memset(void *d, int c, long n); -#endif /* #if !defined(HAVE_MEMSET) */ - -#if !defined(HAVE_STRLEN) -long strlen(char const *s); -#endif /* #if !defined(HAVE_STRLEN) */ - - - -#endif /* #if !defined(XMISSING_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xpatchi.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xpatchi.c deleted file mode 100644 index dc984f83..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xpatchi.c +++ /dev/null @@ -1,641 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - - -#define XDL_MAX_FUZZ 3 -#define XDL_MIN_SYNCLINES 4 - - - -typedef struct s_recinfo { - char const *ptr; - long size; -} recinfo_t; - -typedef struct s_recfile { - mmfile_t *mf; - long nrec; - recinfo_t *recs; -} recfile_t; - -typedef struct s_hunkinfo { - long s1, s2; - long c1, c2; - long cmn, radd, rdel, pctx, sctx; -} hunkinfo_t; - -typedef struct s_patchstats { - long adds, dels; -} patchstats_t; - -typedef struct s_patch { - recfile_t rf; - hunkinfo_t hi; - long hkrec; - long hklen; - long flags; - patchstats_t ps; - int fuzzies; -} patch_t; - - - - -static int xdl_load_hunk_info(char const *line, long size, hunkinfo_t *hki); -static int xdl_init_recfile(mmfile_t *mf, int ispatch, recfile_t *rf); -static void xdl_free_recfile(recfile_t *rf); -static char const *xdl_recfile_get(recfile_t *rf, long irec, long *size); -static int xdl_init_patch(mmfile_t *mf, long flags, patch_t *pch); -static void xdl_free_patch(patch_t *pch); -static int xdl_load_hunk(patch_t *pch, long hkrec); -static int xdl_first_hunk(patch_t *pch); -static int xdl_next_hunk(patch_t *pch); -static int xdl_line_match(patch_t *pch, const char *s, long ns, char const *m, long nm); -static int xdl_hunk_match(recfile_t *rf, long irec, patch_t *pch, int mode, int fuzz); -static int xdl_find_hunk(recfile_t *rf, long ibase, patch_t *pch, int mode, - int fuzz, long *hkpos, int *exact); -static int xdl_emit_rfile_line(recfile_t *rf, long line, xdemitcb_t *ecb); -static int xdl_flush_section(recfile_t *rf, long start, long top, xdemitcb_t *ecb); -static int xdl_apply_hunk(recfile_t *rf, long hkpos, patch_t *pch, int mode, - long *ibase, xdemitcb_t *ecb); -static int xdl_reject_hunk(recfile_t *rf, patch_t *pch, int mode, - xdemitcb_t *rjecb); -static int xdl_process_hunk(recfile_t *rff, patch_t *pch, long *ibase, int mode, - xdemitcb_t *ecb, xdemitcb_t *rjecb); - - - - -static int xdl_load_hunk_info(char const *line, long size, hunkinfo_t *hki) { - char const *next; - - /* - * The diff header format should be: - * - * @@ -OP,OC +NP,NC @@ - * - * Unfortunately some software avoid to emit OP or/and NP in case - * of not existing old or new file (it should be mitted as zero). - * We need to handle both syntaxes. - */ - if (memcmp(line, "@@ -", 4)) - return -1; - line += 4; - size -= 4; - - if (!size || !XDL_ISDIGIT(*line)) - return -1; - hki->s1 = xdl_atol(line, &next); - size -= next - line; - line = next; - if (!size) - return -1; - if (*line == ',') { - size--, line++; - if (!size || !XDL_ISDIGIT(*line)) - return -1; - hki->c1 = xdl_atol(line, &next); - size -= next - line; - line = next; - if (!size || *line != ' ') - return -1; - size--, line++; - } else if (*line == ' ') { - size--, line++; - hki->c1 = hki->s1; - hki->s1 = 0; - } else - return -1; - - if (!size || *line != '+') - return -1; - size--, line++; - if (!size || !XDL_ISDIGIT(*line)) - return -1; - hki->s2 = xdl_atol(line, &next); - size -= next - line; - line = next; - if (!size) - return -1; - if (*line == ',') { - size--, line++; - if (!size || !XDL_ISDIGIT(*line)) - return -1; - hki->c2 = xdl_atol(line, &next); - size -= next - line; - line = next; - if (!size || *line != ' ') - return -1; - size--, line++; - } else if (*line == ' ') { - size--, line++; - hki->c2 = hki->s2; - hki->s2 = 0; - } else - return -1; - if (size < 2 || memcmp(line, "@@", 2) != 0) - return -1; - - /* - * We start from zero, so decrement by one unless it's the special position - * '0' inside the unified diff (new or deleted file). - */ - if (hki->s1 > 0 && hki->c1 > 0) - hki->s1--; - if (hki->s2 > 0 && hki->c2 > 0) - hki->s2--; - - return 0; -} - - -static int xdl_init_recfile(mmfile_t *mf, int ispatch, recfile_t *rf) { - long narec, nrec, bsize; - recinfo_t *recs, *rrecs; - char const *blk, *cur, *top, *eol; - - narec = xdl_guess_lines(mf); - if (!(recs = (recinfo_t *) xdl_malloc(narec * sizeof(recinfo_t)))) { - - return -1; - } - nrec = 0; - if ((cur = blk = xdl_mmfile_first(mf, &bsize)) != NULL) { - for (top = blk + bsize;;) { - if (cur >= top) { - if (!(cur = blk = xdl_mmfile_next(mf, &bsize))) - break; - top = blk + bsize; - } - if (nrec >= narec) { - narec *= 2; - if (!(rrecs = (recinfo_t *) - xdl_realloc(recs, narec * sizeof(recinfo_t)))) { - - xdl_free(recs); - return -1; - } - recs = rrecs; - } - recs[nrec].ptr = cur; - if (!(eol = memchr(cur, '\n', top - cur))) - eol = top - 1; - recs[nrec].size = (long) (eol - cur) + 1; - if (ispatch && *cur == '\\' && nrec > 0 && recs[nrec - 1].size > 0 && - recs[nrec - 1].ptr[recs[nrec - 1].size - 1] == '\n') - recs[nrec - 1].size--; - else - nrec++; - cur = eol + 1; - } - } - rf->mf = mf; - rf->nrec = nrec; - rf->recs = recs; - - return 0; -} - - -static void xdl_free_recfile(recfile_t *rf) { - - xdl_free(rf->recs); -} - - -static char const *xdl_recfile_get(recfile_t *rf, long irec, long *size) { - - if (irec < 0 || irec >= rf->nrec) - return NULL; - *size = rf->recs[irec].size; - - return rf->recs[irec].ptr; -} - - -static int xdl_init_patch(mmfile_t *mf, long flags, patch_t *pch) { - - if (xdl_init_recfile(mf, 1, &pch->rf) < 0) { - - return -1; - } - pch->hkrec = 0; - pch->hklen = 0; - pch->flags = flags; - pch->ps.adds = pch->ps.dels = 0; - pch->fuzzies = 0; - - return 0; -} - - -static void xdl_free_patch(patch_t *pch) { - - xdl_free_recfile(&pch->rf); -} - - -static int xdl_load_hunk(patch_t *pch, long hkrec) { - long size, i, nb; - char const *line; - - for (;; hkrec++) { - pch->hkrec = hkrec; - if (!(line = xdl_recfile_get(&pch->rf, pch->hkrec, &size))) - return 0; - if (*line == '@') - break; - } - if (xdl_load_hunk_info(line, size, &pch->hi) < 0) { - - return -1; - } - pch->hi.cmn = pch->hi.radd = pch->hi.rdel = pch->hi.pctx = pch->hi.sctx = 0; - for (i = pch->hkrec + 1, nb = 0; - (line = xdl_recfile_get(&pch->rf, i, &size)) != NULL; i++) { - if (*line == '@' || *line == '\n') - break; - if (*line == ' ') { - nb++; - pch->hi.cmn++; - } else if (*line == '+') { - if (pch->hi.radd + pch->hi.rdel == 0) - pch->hi.pctx = nb; - nb = 0; - pch->hi.radd++; - } else if (*line == '-') { - if (pch->hi.radd + pch->hi.rdel == 0) - pch->hi.pctx = nb; - nb = 0; - pch->hi.rdel++; - } else { - - return -1; - } - } - pch->hi.sctx = nb; - if (pch->hi.cmn + pch->hi.radd != pch->hi.c2 || - pch->hi.cmn + pch->hi.rdel != pch->hi.c1) { - - return -1; - } - pch->hklen = i - pch->hkrec - 1; - - return 1; -} - - -static int xdl_first_hunk(patch_t *pch) { - - return xdl_load_hunk(pch, 0); -} - - -static int xdl_next_hunk(patch_t *pch) { - - return xdl_load_hunk(pch, pch->hkrec + pch->hklen + 1); -} - - -static int xdl_line_match(patch_t *pch, const char *s, long ns, char const *m, long nm) { - - for (; ns > 0 && (s[ns - 1] == '\r' || s[ns - 1] == '\n'); ns--); - for (; nm > 0 && (m[nm - 1] == '\r' || m[nm - 1] == '\n'); nm--); - if (pch->flags & XDL_PATCH_IGNOREBSPACE) { - for (; ns > 0 && (*s == ' ' || *s == '\t'); ns--, s++); - for (; ns > 0 && (s[ns - 1] == ' ' || s[ns - 1] == '\t'); ns--); - for (; nm > 0 && (*m == ' ' || *m == '\t'); nm--, m++); - for (; nm > 0 && (m[nm - 1] == ' ' || m[nm - 1] == '\t'); nm--); - } - - return ns == nm && memcmp(s, m, ns) == 0; -} - - -static int xdl_hunk_match(recfile_t *rf, long irec, patch_t *pch, int mode, int fuzz) { - long i, j, z, fsize, psize, ptop, pfuzz, sfuzz, misses; - char const *fline, *pline; - - /* - * Limit fuzz to not be greater than the prefix and suffix context. - */ - pfuzz = fuzz < pch->hi.pctx ? fuzz: pch->hi.pctx; - sfuzz = fuzz < pch->hi.sctx ? fuzz: pch->hi.sctx; - - /* - * First loop through the prefix fuzz area. In this loop we simply - * note mismatching lines. We allow missing lines here, that is, - * some prefix context lines are missing. - */ - for (z = pfuzz, misses = 0, i = irec, j = pch->hkrec + 1, - ptop = pch->hkrec + 1 + pch->hklen - sfuzz; - z > 0 && i < rf->nrec && j < ptop; i++, j++, z--) { - if (!(pline = xdl_recfile_get(&pch->rf, j, &psize))) - return 0; - if (!(fline = xdl_recfile_get(rf, i, &fsize)) || - !xdl_line_match(pch, fline, fsize, pline + 1, psize - 1)) - misses++; - } - if (misses > fuzz) - return 0; - - /* - * Strict match loop. - */ - for (; i < rf->nrec && j < ptop; i++, j++) { - for (; j < ptop; j++) { - if (!(pline = xdl_recfile_get(&pch->rf, j, &psize))) - return 0; - if (*pline == ' ' || *pline == mode) - break; - } - if (j == ptop) - break; - if (!(fline = xdl_recfile_get(rf, i, &fsize)) || - !xdl_line_match(pch, fline, fsize, pline + 1, psize - 1)) - return 0; - } - for (; j < ptop; j++) - if (!(pline = xdl_recfile_get(&pch->rf, j, &psize)) || - *pline == ' ' || *pline == mode) - return 0; - - /* - * Finally loop through the suffix fuzz area. In this loop we simply - * note mismatching lines. We allow missing lines here, that is, - * some suffix context lines are missing. - */ - for (z = sfuzz; z > 0 && i < rf->nrec; i++, j++, z--) { - if (!(pline = xdl_recfile_get(&pch->rf, j, &psize))) - return 0; - if (!(fline = xdl_recfile_get(rf, i, &fsize)) || - !xdl_line_match(pch, fline, fsize, pline + 1, psize - 1)) - misses++; - } - - return misses <= fuzz; -} - - -static int xdl_find_hunk(recfile_t *rf, long ibase, patch_t *pch, int mode, - int fuzz, long *hkpos, int *exact) { - long hpos, hlen, i, j; - long pos[2]; - - hpos = mode == '-' ? pch->hi.s1: pch->hi.s2; - hlen = mode == '-' ? pch->hi.cmn + pch->hi.rdel: pch->hi.cmn + pch->hi.radd; - if (xdl_hunk_match(rf, hpos, pch, mode, fuzz)) { - *hkpos = hpos; - *exact = 1; - return 1; - } - for (i = 1;; i++) { - /* - * We allow a negative starting hunk position, up to the - * number of prefix context lines. - */ - j = 0; - if (hpos - i >= ibase - pch->hi.pctx) - pos[j++] = hpos - i; - if (hpos + i + hlen <= rf->nrec) - pos[j++] = hpos + i; - if (!j) - break; - for (j--; j >= 0; j--) - if (xdl_hunk_match(rf, pos[j], pch, mode, fuzz)) { - *hkpos = pos[j]; - *exact = 0; - return 1; - } - } - - return 0; -} - - -static int xdl_emit_rfile_line(recfile_t *rf, long line, xdemitcb_t *ecb) { - mmbuffer_t mb; - - if (!(mb.ptr = (char *) xdl_recfile_get(rf, line, &mb.size)) || - ecb->outf(ecb->priv, &mb, 1) < 0) { - - return -1; - } - - return 0; -} - - -static int xdl_flush_section(recfile_t *rf, long start, long top, xdemitcb_t *ecb) { - long i; - - for (i = start; i <= top; i++) { - if (xdl_emit_rfile_line(rf, i, ecb) < 0) { - - return -1; - } - } - - return 0; -} - - -static int xdl_apply_hunk(recfile_t *rf, long hkpos, patch_t *pch, int mode, - long *ibase, xdemitcb_t *ecb) { - long j, psize, ptop; - char const *pline; - mmbuffer_t mb; - - /* - * The hunk starting position (hkpos) can be negative, up to the number - * of prefix context lines. Since this function only emit the core of - * the hunk (the remaining lines are flushed by xdl_flush_section() calls) - * we need to normalize it by adding the number of prefix context lines. - * The normalized value of the starting position is then greater/equal - * to zero. - */ - hkpos += pch->hi.pctx; - if (xdl_flush_section(rf, *ibase, hkpos - 1, ecb) < 0) { - - return -1; - } - *ibase = hkpos; - for (j = pch->hkrec + 1 + pch->hi.pctx, - ptop = pch->hkrec + 1 + pch->hklen - pch->hi.sctx; j < ptop; j++) { - if (!(pline = xdl_recfile_get(&pch->rf, j, &psize))) { - - return -1; - } - if (*pline == ' ') { - if (xdl_emit_rfile_line(rf, *ibase, ecb) < 0) { - - return -1; - } - (*ibase)++; - } else if (*pline != mode) { - mb.ptr = (char *) pline + 1; - mb.size = psize - 1; - if (ecb->outf(ecb->priv, &mb, 1) < 0) { - - return -1; - } - pch->ps.adds++; - } else { - (*ibase)++; - pch->ps.dels++; - } - } - - return 0; -} - - -static int xdl_reject_hunk(recfile_t *rf, patch_t *pch, int mode, - xdemitcb_t *rjecb) { - long i, size, s1, s2, c1, c2; - char const *line, *pre; - mmbuffer_t mb; - - if (mode == '-') { - s1 = pch->hi.s1; - s2 = pch->hi.s2; - c1 = pch->hi.c1; - c2 = pch->hi.c2; - } else { - s1 = pch->hi.s2; - s2 = pch->hi.s1; - c1 = pch->hi.c2; - c2 = pch->hi.c1; - } - s1 += pch->ps.adds - pch->ps.dels; - if (xdl_emit_hunk_hdr(s1 + 1, c1, s2 + 1, c2, rjecb) < 0) { - - return -1; - } - for (i = pch->hkrec + 1; - (line = xdl_recfile_get(&pch->rf, i, &size)) != NULL; i++) { - if (*line == '@' || *line == '\n') - break; - if (mode == '-' || *line == ' ') { - mb.ptr = (char *) line; - mb.size = size; - if (rjecb->outf(rjecb->priv, &mb, 1) < 0) { - - return -1; - } - } else { - pre = *line == '+' ? "-": "+"; - if (xdl_emit_diffrec(line + 1, size - 1, pre, strlen(pre), - rjecb) < 0) { - - return -1; - } - } - } - - return 0; -} - - -static int xdl_process_hunk(recfile_t *rff, patch_t *pch, long *ibase, int mode, - xdemitcb_t *ecb, xdemitcb_t *rjecb) { - int fuzz, exact, hlen, maxfuzz; - long hkpos; - - hlen = mode == '-' ? pch->hi.cmn + pch->hi.rdel: pch->hi.cmn + pch->hi.radd; - maxfuzz = XDL_MAX_FUZZ; - if (hlen - maxfuzz < XDL_MIN_SYNCLINES) - maxfuzz = hlen - XDL_MIN_SYNCLINES; - if (maxfuzz < 0) - maxfuzz = 0; - for (fuzz = 0; fuzz <= maxfuzz; fuzz++) { - if (xdl_find_hunk(rff, *ibase, pch, mode, fuzz, - &hkpos, &exact)) { - if (xdl_apply_hunk(rff, hkpos, pch, mode, - ibase, ecb) < 0) { - - return -1; - } - if (!exact || fuzz) - pch->fuzzies++; - - return 0; - } - } - if (xdl_reject_hunk(rff, pch, mode, rjecb) < 0) { - - return -1; - } - - return 0; -} - - -int xdl_patch(mmfile_t *mf, mmfile_t *mfp, int mode, xdemitcb_t *ecb, - xdemitcb_t *rjecb) { - int hkres, exact; - long hkpos, ibase; - recfile_t rff; - patch_t pch; - - if (xdl_init_recfile(mf, 0, &rff) < 0) { - - return -1; - } - if (xdl_init_patch(mfp, mode & ~XDL_PATCH_MODEMASK, &pch) < 0) { - - xdl_free_recfile(&rff); - return -1; - } - mode &= XDL_PATCH_MODEMASK; - ibase = 0; - if ((hkres = xdl_first_hunk(&pch)) > 0) { - do { - if (xdl_process_hunk(&rff, &pch, &ibase, mode, - ecb, rjecb) < 0) { - xdl_free_patch(&pch); - xdl_free_recfile(&rff); - return -1; - } - } while ((hkres = xdl_next_hunk(&pch)) > 0); - } - if (hkres < 0) { - - xdl_free_patch(&pch); - xdl_free_recfile(&rff); - return -1; - } - if (xdl_flush_section(&rff, ibase, rff.nrec - 1, ecb) < 0) { - - xdl_free_patch(&pch); - xdl_free_recfile(&rff); - return -1; - } - xdl_free_patch(&pch); - xdl_free_recfile(&rff); - - return pch.fuzzies; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.c deleted file mode 100644 index 3ebd87c1..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.c +++ /dev/null @@ -1,456 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - -#define XDL_KPDIS_RUN 4 -#define XDL_MAX_EQLIMIT 1024 -#define XDL_SIMSCAN_WINDOWN 100 - - -typedef struct s_xdlclass { - struct s_xdlclass *next; - unsigned long ha; - char const *line; - long size; - long idx; -} xdlclass_t; - -typedef struct s_xdlclassifier { - unsigned int hbits; - long hsize; - xdlclass_t **rchash; - chastore_t ncha; - long count; -} xdlclassifier_t; - - - -static int xdl_init_classifier(xdlclassifier_t *cf, long size) { - long i; - - cf->hbits = xdl_hashbits((unsigned int) size); - cf->hsize = 1 << cf->hbits; - - if (xdl_cha_init(&cf->ncha, sizeof(xdlclass_t), size / 4 + 1) < 0) { - - return -1; - } - if (!(cf->rchash = (xdlclass_t **) xdl_malloc(cf->hsize * sizeof(xdlclass_t *)))) { - - xdl_cha_free(&cf->ncha); - return -1; - } - for (i = 0; i < cf->hsize; i++) - cf->rchash[i] = NULL; - - cf->count = 0; - - return 0; -} - - -static void xdl_free_classifier(xdlclassifier_t *cf) { - xdl_free(cf->rchash); - xdl_cha_free(&cf->ncha); -} - - -static int xdl_classify_record(xdlclassifier_t *cf, xrecord_t **rhash, unsigned int hbits, - xrecord_t *rec) { - long hi; - char const *line; - xdlclass_t *rcrec; - - line = rec->ptr; - hi = (long) XDL_HASHLONG(rec->ha, cf->hbits); - for (rcrec = cf->rchash[hi]; rcrec; rcrec = rcrec->next) - if (rcrec->ha == rec->ha && rcrec->size == rec->size && - !memcmp(line, rcrec->line, rec->size)) - break; - - if (!rcrec) { - if (!(rcrec = xdl_cha_alloc(&cf->ncha))) { - - return -1; - } - rcrec->idx = cf->count++; - rcrec->line = line; - rcrec->size = rec->size; - rcrec->ha = rec->ha; - rcrec->next = cf->rchash[hi]; - cf->rchash[hi] = rcrec; - } - - rec->ha = (unsigned long) rcrec->idx; - - hi = (long) XDL_HASHLONG(rec->ha, hbits); - rec->next = rhash[hi]; - rhash[hi] = rec; - - return 0; -} - - -static int xdl_prepare_ctx(mmfile_t *mf, long narec, xpparam_t const *xpp, - xdlclassifier_t *cf, xdfile_t *xdf) { - unsigned int hbits; - long i, nrec, hsize, bsize; - unsigned long hav; - char const *blk, *cur, *top, *prev; - xrecord_t *crec; - xrecord_t **recs, **rrecs; - xrecord_t **rhash; - unsigned long *ha; - char *rchg; - long *rindex; - - if (xdl_cha_init(&xdf->rcha, sizeof(xrecord_t), narec / 4 + 1) < 0) { - - return -1; - } - if (!(recs = (xrecord_t **) xdl_malloc(narec * sizeof(xrecord_t *)))) { - - xdl_cha_free(&xdf->rcha); - return -1; - } - - hbits = xdl_hashbits((unsigned int) narec); - hsize = 1 << hbits; - if (!(rhash = (xrecord_t **) xdl_malloc(hsize * sizeof(xrecord_t *)))) { - - xdl_free(recs); - xdl_cha_free(&xdf->rcha); - return -1; - } - for (i = 0; i < hsize; i++) - rhash[i] = NULL; - - nrec = 0; - if ((cur = blk = xdl_mmfile_first(mf, &bsize)) != NULL) { - for (top = blk + bsize;;) { - if (cur >= top) { - if (!(cur = blk = xdl_mmfile_next(mf, &bsize))) - break; - top = blk + bsize; - } - prev = cur; - hav = xdl_hash_record(&cur, top); - if (nrec >= narec) { - narec *= 2; - if (!(rrecs = (xrecord_t **) xdl_realloc(recs, narec * sizeof(xrecord_t *)))) { - - xdl_free(rhash); - xdl_free(recs); - xdl_cha_free(&xdf->rcha); - return -1; - } - recs = rrecs; - } - if (!(crec = xdl_cha_alloc(&xdf->rcha))) { - - xdl_free(rhash); - xdl_free(recs); - xdl_cha_free(&xdf->rcha); - return -1; - } - crec->ptr = prev; - crec->size = (long) (cur - prev); - crec->ha = hav; - recs[nrec++] = crec; - - if (xdl_classify_record(cf, rhash, hbits, crec) < 0) { - - xdl_free(rhash); - xdl_free(recs); - xdl_cha_free(&xdf->rcha); - return -1; - } - } - } - - if (!(rchg = (char *) xdl_malloc(nrec + 2))) { - - xdl_free(rhash); - xdl_free(recs); - xdl_cha_free(&xdf->rcha); - return -1; - } - memset(rchg, 0, nrec + 2); - - if (!(rindex = (long *) xdl_malloc((nrec + 1) * sizeof(long)))) { - - xdl_free(rchg); - xdl_free(rhash); - xdl_free(recs); - xdl_cha_free(&xdf->rcha); - return -1; - } - if (!(ha = (unsigned long *) xdl_malloc((nrec + 1) * sizeof(unsigned long)))) { - - xdl_free(rindex); - xdl_free(rchg); - xdl_free(rhash); - xdl_free(recs); - xdl_cha_free(&xdf->rcha); - return -1; - } - - xdf->nrec = nrec; - xdf->recs = recs; - xdf->hbits = hbits; - xdf->rhash = rhash; - xdf->rchg = rchg + 1; - xdf->rindex = rindex; - xdf->nreff = 0; - xdf->ha = ha; - xdf->dstart = 0; - xdf->dend = nrec - 1; - - return 0; -} - - -static void xdl_free_ctx(xdfile_t *xdf) { - xdl_free(xdf->rhash); - xdl_free(xdf->rindex); - xdl_free(xdf->rchg - 1); - xdl_free(xdf->ha); - xdl_free(xdf->recs); - xdl_cha_free(&xdf->rcha); -} - - -static int xdl_clean_mmatch(char const *dis, long i, long s, long e) { - long r, rdis0, rpdis0, rdis1, rpdis1; - - /* - * Limits the window the is examined during the similar-lines - * scan. The loops below stops when dis[i - r] == 1 (line that - * has no match), but there are corner cases where the loop - * proceed all the way to the extremities by causing huge - * performance penalties in case of big files. - */ - if (i - s > XDL_SIMSCAN_WINDOWN) - s = i - XDL_SIMSCAN_WINDOWN; - if (e - i > XDL_SIMSCAN_WINDOWN) - e = i + XDL_SIMSCAN_WINDOWN; - - /* - * Scans the lines before 'i' to find a run of lines that either - * have no match (dis[j] == 0) or have multiple matches (dis[j] > 1). - * Note that we always call this function with dis[i] > 1, so the - * current line (i) is already a multimatch line. - */ - for (r = 1, rdis0 = 0, rpdis0 = 1; (i - r) >= s; r++) { - if (!dis[i - r]) - rdis0++; - else if (dis[i - r] == 2) - rpdis0++; - else - break; - } - /* - * If the run before the line 'i' found only multimatch lines, we - * return 0 and hence we don't make the current line (i) discarded. - * We want to discard multimatch lines only when they appear in the - * middle of runs with nomatch lines (dis[j] == 0). - */ - if (rdis0 == 0) - return 0; - for (r = 1, rdis1 = 0, rpdis1 = 1; (i + r) <= e; r++) { - if (!dis[i + r]) - rdis1++; - else if (dis[i + r] == 2) - rpdis1++; - else - break; - } - /* - * If the run after the line 'i' found only multimatch lines, we - * return 0 and hence we don't make the current line (i) discarded. - */ - if (rdis1 == 0) - return 0; - rdis1 += rdis0; - rpdis1 += rpdis0; - - return rpdis1 * XDL_KPDIS_RUN < (rpdis1 + rdis1); -} - - -/* - * Try to reduce the problem complexity, discard records that have no - * matches on the other file. Also, lines that have multiple matches - * might be potentially discarded if they happear in a run of discardable. - */ -static int xdl_cleanup_records(xdfile_t *xdf1, xdfile_t *xdf2) { - long i, nm, rhi, nreff, mlim; - unsigned long hav; - xrecord_t **recs; - xrecord_t *rec; - char *dis, *dis1, *dis2; - - if (!(dis = (char *) xdl_malloc(xdf1->nrec + xdf2->nrec + 2))) { - - return -1; - } - memset(dis, 0, xdf1->nrec + xdf2->nrec + 2); - dis1 = dis; - dis2 = dis1 + xdf1->nrec + 1; - - if ((mlim = xdl_bogosqrt(xdf1->nrec)) > XDL_MAX_EQLIMIT) - mlim = XDL_MAX_EQLIMIT; - for (i = xdf1->dstart, recs = &xdf1->recs[xdf1->dstart]; i <= xdf1->dend; i++, recs++) { - hav = (*recs)->ha; - rhi = (long) XDL_HASHLONG(hav, xdf2->hbits); - for (nm = 0, rec = xdf2->rhash[rhi]; rec; rec = rec->next) - if (rec->ha == hav && ++nm == mlim) - break; - dis1[i] = (nm == 0) ? 0: (nm >= mlim) ? 2: 1; - } - - if ((mlim = xdl_bogosqrt(xdf2->nrec)) > XDL_MAX_EQLIMIT) - mlim = XDL_MAX_EQLIMIT; - for (i = xdf2->dstart, recs = &xdf2->recs[xdf2->dstart]; i <= xdf2->dend; i++, recs++) { - hav = (*recs)->ha; - rhi = (long) XDL_HASHLONG(hav, xdf1->hbits); - for (nm = 0, rec = xdf1->rhash[rhi]; rec; rec = rec->next) - if (rec->ha == hav && ++nm == mlim) - break; - dis2[i] = (nm == 0) ? 0: (nm >= mlim) ? 2: 1; - } - - for (nreff = 0, i = xdf1->dstart, recs = &xdf1->recs[xdf1->dstart]; - i <= xdf1->dend; i++, recs++) { - if (dis1[i] == 1 || - (dis1[i] == 2 && !xdl_clean_mmatch(dis1, i, xdf1->dstart, xdf1->dend))) { - xdf1->rindex[nreff] = i; - xdf1->ha[nreff] = (*recs)->ha; - nreff++; - } else - xdf1->rchg[i] = 1; - } - xdf1->nreff = nreff; - - for (nreff = 0, i = xdf2->dstart, recs = &xdf2->recs[xdf2->dstart]; - i <= xdf2->dend; i++, recs++) { - if (dis2[i] == 1 || - (dis2[i] == 2 && !xdl_clean_mmatch(dis2, i, xdf2->dstart, xdf2->dend))) { - xdf2->rindex[nreff] = i; - xdf2->ha[nreff] = (*recs)->ha; - nreff++; - } else - xdf2->rchg[i] = 1; - } - xdf2->nreff = nreff; - - xdl_free(dis); - - return 0; -} - - -/* - * Early trim initial and terminal matching records. - */ -static int xdl_trim_ends(xdfile_t *xdf1, xdfile_t *xdf2) { - long i, lim; - xrecord_t **recs1, **recs2; - - recs1 = xdf1->recs; - recs2 = xdf2->recs; - for (i = 0, lim = XDL_MIN(xdf1->nrec, xdf2->nrec); i < lim; - i++, recs1++, recs2++) - if ((*recs1)->ha != (*recs2)->ha) - break; - - xdf1->dstart = xdf2->dstart = i; - - recs1 = xdf1->recs + xdf1->nrec - 1; - recs2 = xdf2->recs + xdf2->nrec - 1; - for (lim -= i, i = 0; i < lim; i++, recs1--, recs2--) - if ((*recs1)->ha != (*recs2)->ha) - break; - - xdf1->dend = xdf1->nrec - i - 1; - xdf2->dend = xdf2->nrec - i - 1; - - return 0; -} - - -static int xdl_optimize_ctxs(xdfile_t *xdf1, xdfile_t *xdf2) { - if (xdl_trim_ends(xdf1, xdf2) < 0 || - xdl_cleanup_records(xdf1, xdf2) < 0) { - - return -1; - } - - return 0; -} - - -int xdl_prepare_env(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdfenv_t *xe) { - long enl1, enl2; - xdlclassifier_t cf; - - enl1 = xdl_guess_lines(mf1) + 1; - enl2 = xdl_guess_lines(mf2) + 1; - - if (xdl_init_classifier(&cf, enl1 + enl2 + 1) < 0) { - - return -1; - } - - if (xdl_prepare_ctx(mf1, enl1, xpp, &cf, &xe->xdf1) < 0) { - - xdl_free_classifier(&cf); - return -1; - } - if (xdl_prepare_ctx(mf2, enl2, xpp, &cf, &xe->xdf2) < 0) { - - xdl_free_ctx(&xe->xdf1); - xdl_free_classifier(&cf); - return -1; - } - - xdl_free_classifier(&cf); - - if (xdl_optimize_ctxs(&xe->xdf1, &xe->xdf2) < 0) { - - xdl_free_ctx(&xe->xdf2); - xdl_free_ctx(&xe->xdf1); - return -1; - } - - return 0; -} - - -void xdl_free_env(xdfenv_t *xe) { - xdl_free_ctx(&xe->xdf2); - xdl_free_ctx(&xe->xdf1); -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.h deleted file mode 100644 index 344c569e..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xprepare.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XPREPARE_H) -#define XPREPARE_H - - - -int xdl_prepare_env(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, - xdfenv_t *xe); -void xdl_free_env(xdfenv_t *xe); - - - -#endif /* #if !defined(XPREPARE_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabdiff.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabdiff.c deleted file mode 100644 index 586d9837..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabdiff.c +++ /dev/null @@ -1,381 +0,0 @@ -/* - * xrabdiff by Davide Libenzi (Rabin's polynomial fingerprint based delta generator) - * Copyright (C) 2006 Davide Libenzi - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - * - * Hints, ideas and code for the implementation came from: - * - * Rabin's original paper: http://www.xmailserver.org/rabin.pdf - * Chan & Lu's paper: http://www.xmailserver.org/rabin_impl.pdf - * Broder's paper: http://www.xmailserver.org/rabin_apps.pdf - * LBFS source code: http://www.fs.net/sfswww/lbfs/ - * Geert Bosch's post: http://marc.theaimsgroup.com/?l=git&m=114565424620771&w=2 - * - */ - -#include "xinclude.h" - - -#if !defined(XRABPLY_TYPE32) && !defined(XRABPLY_TYPE64) -#define XRABPLY_TYPE64 long long -#define XV64(v) ((xply_word) v ## ULL) -#endif - -#include "xrabply.c" - - - -#define XRAB_SLIDE(v, c) do { \ - if (++wpos == XRAB_WNDSIZE) wpos = 0; \ - v ^= U[wbuf[wpos]]; \ - wbuf[wpos] = (c); \ - v = ((v << 8) | (c)) ^ T[v >> XRAB_SHIFT]; \ - } while (0) - - -#define XRAB_MINCPYSIZE 12 -#define XRAB_WBITS (sizeof(xply_word) * 8) - - - -typedef struct s_xrabctx { - long idxsize; - long *idx; - unsigned char const *data; - long size; -} xrabctx_t; - -typedef struct s_xrabcpyi { - long src; - long tgt; - long len; -} xrabcpyi_t; - -typedef struct s_xrabcpyi_arena { - long cnt, size; - xrabcpyi_t *acpy; -} xrabcpyi_arena_t; - - - -static void xrab_init_cpyarena(xrabcpyi_arena_t *aca) { - aca->cnt = aca->size = 0; - aca->acpy = NULL; -} - - -static void xrab_free_cpyarena(xrabcpyi_arena_t *aca) { - xdl_free(aca->acpy); -} - - -static int xrab_add_cpy(xrabcpyi_arena_t *aca, xrabcpyi_t const *rcpy) { - long size; - xrabcpyi_t *acpy; - - if (aca->cnt >= aca->size) { - size = 2 * aca->size + 1024; - if ((acpy = (xrabcpyi_t *) - xdl_realloc(aca->acpy, size * sizeof(xrabcpyi_t))) == NULL) - return -1; - aca->acpy = acpy; - aca->size = size; - } - aca->acpy[aca->cnt++] = *rcpy; - - return 0; -} - - -static long xrab_cmnseq(unsigned char const *data, long start, long size) { - unsigned char ch = data[start]; - unsigned char const *ptr, *top; - - for (ptr = data + start + 1, top = data + size; ptr < top && ch == *ptr; ptr++); - - return (long) (ptr - (data + start + 1)); -} - - -static int xrab_build_ctx(unsigned char const *data, long size, xrabctx_t *ctx) { - long i, isize, idxsize, seq, wpos = 0; - xply_word fp = 0, mask; - unsigned char ch; - unsigned char const *ptr, *eot; - long *idx; - unsigned char wbuf[XRAB_WNDSIZE]; - long maxoffs[256]; - long maxseq[256]; - xply_word maxfp[256]; - - memset(wbuf, 0, sizeof(wbuf)); - memset(maxseq, 0, sizeof(maxseq)); - isize = 2 * (size / XRAB_WNDSIZE); - for (idxsize = 1; idxsize < isize; idxsize <<= 1); - mask = (xply_word) (idxsize - 1); - if ((idx = (long *) xdl_malloc(idxsize * sizeof(long))) == NULL) - return -1; - memset(idx, 0, idxsize * sizeof(long)); - for (i = 0; i + XRAB_WNDSIZE < size; i += XRAB_WNDSIZE) { - /* - * Generate a brand new hash for the current window. Here we could - * try to perform pseudo-loop unroll by 4 blocks if necessary, and - * if we force XRAB_WNDSIZE to be a multiple of 4, we could reduce - * the branch occurence inside XRAB_SLIDE by a factor of 4. - */ - for (ptr = data + i, eot = ptr + XRAB_WNDSIZE; ptr < eot; ptr++) - XRAB_SLIDE(fp, *ptr); - - /* - * Try to scan for single value scans, and store them in the - * array according to the longest one. Before we do a fast check - * to avoid calling xrab_cmnseq() when not necessary. - */ - if ((ch = data[i]) == data[i + XRAB_WNDSIZE - 1] && - (seq = xrab_cmnseq(data, i, size)) > XRAB_WNDSIZE && - seq > maxseq[ch]) { - maxseq[ch] = seq; - maxfp[ch] = fp; - maxoffs[ch] = i + XRAB_WNDSIZE; - seq = (seq / XRAB_WNDSIZE) * XRAB_WNDSIZE; - i += seq - XRAB_WNDSIZE; - } else - idx[fp & mask] = i + XRAB_WNDSIZE; - } - - /* - * Restore back the logest sequences by overwriting target hash buckets. - */ - for (i = 0; i < 256; i++) - if (maxseq[i]) - idx[maxfp[i] & mask] = maxoffs[i]; - ctx->idxsize = idxsize; - ctx->idx = idx; - ctx->data = data; - ctx->size = size; - - return 0; -} - - -static void xrab_free_ctx(xrabctx_t *ctx) { - - xdl_free(ctx->idx); -} - - -static int xrab_diff(unsigned char const *data, long size, xrabctx_t *ctx, - xrabcpyi_arena_t *aca) { - long i, offs, ssize, src, tgt, esrc, etgt, wpos = 0; - xply_word fp = 0, mask; - long const *idx; - unsigned char const *sdata; - xrabcpyi_t rcpy; - unsigned char wbuf[XRAB_WNDSIZE]; - - xrab_init_cpyarena(aca); - memset(wbuf, 0, sizeof(wbuf)); - for (i = 0; i < XRAB_WNDSIZE - 1 && i < size; i++) - XRAB_SLIDE(fp, data[i]); - idx = ctx->idx; - sdata = ctx->data; - ssize = ctx->size; - mask = (xply_word) (ctx->idxsize - 1); - while (i < size) { - unsigned char ch = data[i++]; - - XRAB_SLIDE(fp, ch); - offs = idx[fp & mask]; - - /* - * Fast check here to probabilistically reduce false positives - * that would trigger the slow path below. - */ - if (offs == 0 || ch != sdata[offs - 1]) - continue; - - /* - * Stretch the match both sides as far as possible. - */ - src = offs - 1; - tgt = i - 1; - for (; tgt > 0 && src > 0 && data[tgt - 1] == sdata[src - 1]; - tgt--, src--); - esrc = offs; - etgt = i; - for (; etgt < size && esrc < ssize && data[etgt] == sdata[esrc]; - etgt++, esrc++); - - /* - * Avoid considering copies smaller than the XRAB_MINCPYSIZE - * threshold. - */ - if (etgt - tgt >= XRAB_MINCPYSIZE) { - rcpy.src = src; - rcpy.tgt = tgt; - rcpy.len = etgt - tgt; - if (xrab_add_cpy(aca, &rcpy) < 0) { - xrab_free_cpyarena(aca); - return -1; - } - - /* - * Fill up the new window and exit with 'i' properly set on exit. - */ - for (i = etgt - XRAB_WNDSIZE; i < etgt; i++) - XRAB_SLIDE(fp, data[i]); - } - } - - return 0; -} - - -static int xrab_tune_cpyarena(unsigned char const *data, long size, xrabctx_t *ctx, - xrabcpyi_arena_t *aca) { - long i, cpos; - xrabcpyi_t *rcpy; - - for (cpos = size, i = aca->cnt - 1; i >= 0; i--) { - rcpy = aca->acpy + i; - if (rcpy->tgt >= cpos) - rcpy->len = 0; - else if (rcpy->tgt + rcpy->len > cpos) { - if ((rcpy->len = cpos - rcpy->tgt) >= XRAB_MINCPYSIZE) - cpos = rcpy->tgt; - else - rcpy->len = 0; - } else - cpos = rcpy->tgt; - } - - return 0; -} - - -int xdl_rabdiff_mb(mmbuffer_t *mmb1, mmbuffer_t *mmb2, xdemitcb_t *ecb) { - long i, cpos, size; - unsigned long fp; - xrabcpyi_t *rcpy; - xrabctx_t ctx; - xrabcpyi_arena_t aca; - mmbuffer_t mb[2]; - unsigned char cpybuf[32]; - - fp = xdl_mmb_adler32(mmb1); - if (xrab_build_ctx((unsigned char const *) mmb1->ptr, mmb1->size, - &ctx) < 0) - return -1; - if (xrab_diff((unsigned char const *) mmb2->ptr, mmb2->size, &ctx, - &aca) < 0) { - xrab_free_ctx(&ctx); - return -1; - } - xrab_tune_cpyarena((unsigned char const *) mmb2->ptr, mmb2->size, &ctx, - &aca); - xrab_free_ctx(&ctx); - - /* - * Prepare and emit the binary patch file header. It will be used - * to verify that that file being patched matches in size and fingerprint - * the one that generated the patch. - */ - size = mmb1->size; - XDL_LE32_PUT(cpybuf, fp); - XDL_LE32_PUT(cpybuf + 4, size); - - mb[0].ptr = (char *) cpybuf; - mb[0].size = 4 + 4; - if (ecb->outf(ecb->priv, mb, 1) < 0) { - xrab_free_cpyarena(&aca); - return -1; - } - for (cpos = 0, i = 0; i < aca.cnt; i++) { - rcpy = aca.acpy + i; - if (rcpy->len == 0) - continue; - if (cpos < rcpy->tgt) { - size = rcpy->tgt - cpos; - if (size > 255) { - cpybuf[0] = XDL_BDOP_INSB; - XDL_LE32_PUT(cpybuf + 1, size); - mb[0].ptr = (char *) cpybuf; - mb[0].size = XDL_INSBOP_SIZE; - } else { - cpybuf[0] = XDL_BDOP_INS; - cpybuf[1] = (unsigned char) size; - mb[0].ptr = (char *) cpybuf; - mb[0].size = 2; - } - mb[1].ptr = mmb2->ptr + cpos; - mb[1].size = size; - if (ecb->outf(ecb->priv, mb, 2) < 0) { - xrab_free_cpyarena(&aca); - return -1; - } - cpos = rcpy->tgt; - } - cpybuf[0] = XDL_BDOP_CPY; - XDL_LE32_PUT(cpybuf + 1, rcpy->src); - XDL_LE32_PUT(cpybuf + 5, rcpy->len); - mb[0].ptr = (char *) cpybuf; - mb[0].size = XDL_COPYOP_SIZE; - if (ecb->outf(ecb->priv, mb, 1) < 0) { - xrab_free_cpyarena(&aca); - return -1; - } - cpos += rcpy->len; - } - xrab_free_cpyarena(&aca); - if (cpos < mmb2->size) { - size = mmb2->size - cpos; - if (size > 255) { - cpybuf[0] = XDL_BDOP_INSB; - XDL_LE32_PUT(cpybuf + 1, size); - mb[0].ptr = (char *) cpybuf; - mb[0].size = XDL_INSBOP_SIZE; - } else { - cpybuf[0] = XDL_BDOP_INS; - cpybuf[1] = (unsigned char) size; - mb[0].ptr = (char *) cpybuf; - mb[0].size = 2; - } - mb[1].ptr = mmb2->ptr + cpos; - mb[1].size = size; - if (ecb->outf(ecb->priv, mb, 2) < 0) - return -1; - } - - return 0; -} - - -int xdl_rabdiff(mmfile_t *mmf1, mmfile_t *mmf2, xdemitcb_t *ecb) { - mmbuffer_t mmb1, mmb2; - - if (!xdl_mmfile_iscompact(mmf1) || !xdl_mmfile_iscompact(mmf2)) - return -1; - if ((mmb1.ptr = (char *) xdl_mmfile_first(mmf1, &mmb1.size)) == NULL) - mmb1.size = 0; - if ((mmb2.ptr = (char *) xdl_mmfile_first(mmf2, &mmb2.size)) == NULL) - mmb2.size = 0; - - return xdl_rabdiff_mb(&mmb1, &mmb2, ecb); -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabply.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabply.c deleted file mode 100644 index daaabdaa..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xrabply.c +++ /dev/null @@ -1,298 +0,0 @@ -#if defined(XRABPLY_TYPE64) - -#if !defined(XV64) -#define XV64(v) ((xply_word) v ## ULL) -#endif - -#define XRAB_ROOTPOLY XV64(0x36f7381af4d70d33) - -#define XRAB_SHIFT 53 -#define XRAB_WNDSIZE 20 - -typedef unsigned XRABPLY_TYPE64 xply_word; - -static const xply_word T[256] = { - XV64(0x0), XV64(0x36f7381af4d70d33), XV64(0x5b19482f1d791755), XV64(0x6dee7035e9ae1a66), - XV64(0x80c5a844ce252399), XV64(0xb632905e3af22eaa), XV64(0xdbdce06bd35c34cc), XV64(0xed2bd871278b39ff), - XV64(0x18b50899c4a4732), XV64(0x377c6893689d4a01), XV64(0x5a9218a681335067), XV64(0x6c6520bc75e45d54), - XV64(0x814ef8cd526f64ab), XV64(0xb7b9c0d7a6b86998), XV64(0xda57b0e24f1673fe), XV64(0xeca088f8bbc17ecd), - XV64(0x316a11338948e64), XV64(0x35e19909cc438357), XV64(0x580fe93c25ed9931), XV64(0x6ef8d126d13a9402), - XV64(0x83d30957f6b1adfd), XV64(0xb524314d0266a0ce), XV64(0xd8ca4178ebc8baa8), XV64(0xee3d79621f1fb79b), - XV64(0x29df19aa4dec956), XV64(0x346ac9805009c465), XV64(0x5984b9b5b9a7de03), XV64(0x6f7381af4d70d330), - XV64(0x825859de6afbeacf), XV64(0xb4af61c49e2ce7fc), XV64(0xd94111f17782fd9a), XV64(0xefb629eb8355f0a9), - XV64(0x62d422671291cc8), XV64(0x30da7a3c85fe11fb), XV64(0x5d340a096c500b9d), XV64(0x6bc33213988706ae), - XV64(0x86e8ea62bf0c3f51), XV64(0xb01fd2784bdb3262), XV64(0xddf1a24da2752804), XV64(0xeb069a5756a22537), - XV64(0x7a612afed635bfa), XV64(0x31512ab519b456c9), XV64(0x5cbf5a80f01a4caf), XV64(0x6a48629a04cd419c), - XV64(0x8763baeb23467863), XV64(0xb19482f1d7917550), XV64(0xdc7af2c43e3f6f36), XV64(0xea8dcadecae86205), - XV64(0x53be33549bd92ac), XV64(0x33ccdb2fbd6a9f9f), XV64(0x5e22ab1a54c485f9), XV64(0x68d59300a01388ca), - XV64(0x85fe4b718798b135), XV64(0xb309736b734fbc06), XV64(0xdee7035e9ae1a660), XV64(0xe8103b446e36ab53), - XV64(0x4b0b3bcd5f7d59e), XV64(0x32478ba62120d8ad), XV64(0x5fa9fb93c88ec2cb), XV64(0x695ec3893c59cff8), - XV64(0x84751bf81bd2f607), XV64(0xb28223e2ef05fb34), XV64(0xdf6c53d706abe152), XV64(0xe99b6bcdf27cec61), - XV64(0xc5a844ce2523990), XV64(0x3aadbc56168534a3), XV64(0x5743cc63ff2b2ec5), XV64(0x61b4f4790bfc23f6), - XV64(0x8c9f2c082c771a09), XV64(0xba681412d8a0173a), XV64(0xd7866427310e0d5c), XV64(0xe1715c3dc5d9006f), - XV64(0xdd1d4c57e187ea2), XV64(0x3b26ecdf8acf7391), XV64(0x56c89cea636169f7), XV64(0x603fa4f097b664c4), - XV64(0x8d147c81b03d5d3b), XV64(0xbbe3449b44ea5008), XV64(0xd60d34aead444a6e), XV64(0xe0fa0cb45993475d), - XV64(0xf4c255fdac6b7f4), XV64(0x39bb1d452e11bac7), XV64(0x54556d70c7bfa0a1), XV64(0x62a2556a3368ad92), - XV64(0x8f898d1b14e3946d), XV64(0xb97eb501e034995e), XV64(0xd490c534099a8338), XV64(0xe267fd2efd4d8e0b), - XV64(0xec775d6468cf0c6), XV64(0x38304dccb25bfdf5), XV64(0x55de3df95bf5e793), XV64(0x632905e3af22eaa0), - XV64(0x8e02dd9288a9d35f), XV64(0xb8f5e5887c7ede6c), XV64(0xd51b95bd95d0c40a), XV64(0xe3ecada76107c939), - XV64(0xa77c66a937b2558), XV64(0x3c80fe7067ac286b), XV64(0x516e8e458e02320d), XV64(0x6799b65f7ad53f3e), - XV64(0x8ab26e2e5d5e06c1), XV64(0xbc455634a9890bf2), XV64(0xd1ab260140271194), XV64(0xe75c1e1bb4f01ca7), - XV64(0xbfc96e30f31626a), XV64(0x3d0baef9fbe66f59), XV64(0x50e5decc1248753f), XV64(0x6612e6d6e69f780c), - XV64(0x8b393ea7c11441f3), XV64(0xbdce06bd35c34cc0), XV64(0xd0207688dc6d56a6), XV64(0xe6d74e9228ba5b95), - XV64(0x9616779abefab3c), XV64(0x3f965f635f38a60f), XV64(0x52782f56b696bc69), XV64(0x648f174c4241b15a), - XV64(0x89a4cf3d65ca88a5), XV64(0xbf53f727911d8596), XV64(0xd2bd871278b39ff0), XV64(0xe44abf088c6492c3), - XV64(0x8ea37f037a5ec0e), XV64(0x3e1d0feac372e13d), XV64(0x53f37fdf2adcfb5b), XV64(0x650447c5de0bf668), - XV64(0x882f9fb4f980cf97), XV64(0xbed8a7ae0d57c2a4), XV64(0xd336d79be4f9d8c2), XV64(0xe5c1ef81102ed5f1), - XV64(0x18b50899c4a47320), XV64(0x2e42308330737e13), XV64(0x43ac40b6d9dd6475), XV64(0x755b78ac2d0a6946), - XV64(0x9870a0dd0a8150b9), XV64(0xae8798c7fe565d8a), XV64(0xc369e8f217f847ec), XV64(0xf59ed0e8e32f4adf), - XV64(0x193e581058ee3412), XV64(0x2fc9600aac393921), XV64(0x4227103f45972347), XV64(0x74d02825b1402e74), - XV64(0x99fbf05496cb178b), XV64(0xaf0cc84e621c1ab8), XV64(0xc2e2b87b8bb200de), XV64(0xf41580617f650ded), - XV64(0x1ba3a98afc30fd44), XV64(0x2d54919008e7f077), XV64(0x40bae1a5e149ea11), XV64(0x764dd9bf159ee722), - XV64(0x9b6601ce3215dedd), XV64(0xad9139d4c6c2d3ee), XV64(0xc07f49e12f6cc988), XV64(0xf68871fbdbbbc4bb), - XV64(0x1a28f903607aba76), XV64(0x2cdfc11994adb745), XV64(0x4131b12c7d03ad23), XV64(0x77c6893689d4a010), - XV64(0x9aed5147ae5f99ef), XV64(0xac1a695d5a8894dc), XV64(0xc1f41968b3268eba), XV64(0xf703217247f18389), - XV64(0x1e984abfb58d6fe8), XV64(0x286f72a5415a62db), XV64(0x45810290a8f478bd), XV64(0x73763a8a5c23758e), - XV64(0x9e5de2fb7ba84c71), XV64(0xa8aadae18f7f4142), XV64(0xc544aad466d15b24), XV64(0xf3b392ce92065617), - XV64(0x1f131a3629c728da), XV64(0x29e4222cdd1025e9), XV64(0x440a521934be3f8f), XV64(0x72fd6a03c06932bc), - XV64(0x9fd6b272e7e20b43), XV64(0xa9218a6813350670), XV64(0xc4cffa5dfa9b1c16), XV64(0xf238c2470e4c1125), - XV64(0x1d8eebac8d19e18c), XV64(0x2b79d3b679ceecbf), XV64(0x4697a3839060f6d9), XV64(0x70609b9964b7fbea), - XV64(0x9d4b43e8433cc215), XV64(0xabbc7bf2b7ebcf26), XV64(0xc6520bc75e45d540), XV64(0xf0a533ddaa92d873), - XV64(0x1c05bb251153a6be), XV64(0x2af2833fe584ab8d), XV64(0x471cf30a0c2ab1eb), XV64(0x71ebcb10f8fdbcd8), - XV64(0x9cc01361df768527), XV64(0xaa372b7b2ba18814), XV64(0xc7d95b4ec20f9272), XV64(0xf12e635436d89f41), - XV64(0x14ef8cd526f64ab0), XV64(0x2218b4cfd2214783), XV64(0x4ff6c4fa3b8f5de5), XV64(0x7901fce0cf5850d6), - XV64(0x942a2491e8d36929), XV64(0xa2dd1c8b1c04641a), XV64(0xcf336cbef5aa7e7c), XV64(0xf9c454a4017d734f), - XV64(0x1564dc5cbabc0d82), XV64(0x2393e4464e6b00b1), XV64(0x4e7d9473a7c51ad7), XV64(0x788aac69531217e4), - XV64(0x95a1741874992e1b), XV64(0xa3564c02804e2328), XV64(0xceb83c3769e0394e), XV64(0xf84f042d9d37347d), - XV64(0x17f92dc61e62c4d4), XV64(0x210e15dceab5c9e7), XV64(0x4ce065e9031bd381), XV64(0x7a175df3f7ccdeb2), - XV64(0x973c8582d047e74d), XV64(0xa1cbbd982490ea7e), XV64(0xcc25cdadcd3ef018), XV64(0xfad2f5b739e9fd2b), - XV64(0x16727d4f822883e6), XV64(0x2085455576ff8ed5), XV64(0x4d6b35609f5194b3), XV64(0x7b9c0d7a6b869980), - XV64(0x96b7d50b4c0da07f), XV64(0xa040ed11b8daad4c), XV64(0xcdae9d245174b72a), XV64(0xfb59a53ea5a3ba19), - XV64(0x12c2cef357df5678), XV64(0x2435f6e9a3085b4b), XV64(0x49db86dc4aa6412d), XV64(0x7f2cbec6be714c1e), - XV64(0x920766b799fa75e1), XV64(0xa4f05ead6d2d78d2), XV64(0xc91e2e98848362b4), XV64(0xffe9168270546f87), - XV64(0x13499e7acb95114a), XV64(0x25bea6603f421c79), XV64(0x4850d655d6ec061f), XV64(0x7ea7ee4f223b0b2c), - XV64(0x938c363e05b032d3), XV64(0xa57b0e24f1673fe0), XV64(0xc8957e1118c92586), XV64(0xfe62460bec1e28b5), - XV64(0x11d46fe06f4bd81c), XV64(0x272357fa9b9cd52f), XV64(0x4acd27cf7232cf49), XV64(0x7c3a1fd586e5c27a), - XV64(0x9111c7a4a16efb85), XV64(0xa7e6ffbe55b9f6b6), XV64(0xca088f8bbc17ecd0), XV64(0xfcffb79148c0e1e3), - XV64(0x105f3f69f3019f2e), XV64(0x26a8077307d6921d), XV64(0x4b467746ee78887b), XV64(0x7db14f5c1aaf8548), - XV64(0x909a972d3d24bcb7), XV64(0xa66daf37c9f3b184), XV64(0xcb83df02205dabe2), XV64(0xfd74e718d48aa6d1) -}; - -static const xply_word U[256] = { - XV64(0x0), XV64(0x1c3eb44b122426b2), XV64(0xe8a508cd09f4057), XV64(0x12b4e4c7c2bb66e5), - XV64(0x1d14a119a13e80ae), XV64(0x12a1552b31aa61c), XV64(0x139ef19571a1c0f9), XV64(0xfa045de6385e64b), - XV64(0xcde7a29b6aa0c6f), XV64(0x10e0ce62a48e2add), XV64(0x2542aa566354c38), XV64(0x1e6a9eee74116a8a), - XV64(0x11cadb3017948cc1), XV64(0xdf46f7b05b0aa73), XV64(0x1f408bbcc70bcc96), XV64(0x37e3ff7d52fea24), - XV64(0x19bcf4536d5418de), XV64(0x58240187f703e6c), XV64(0x1736a4dfbdcb5889), XV64(0xb081094afef7e3b), - XV64(0x4a8554acc6a9870), XV64(0x1896e101de4ebec2), XV64(0xa2205c61cf5d827), XV64(0x161cb18d0ed1fe95), - XV64(0x15628e7adbfe14b1), XV64(0x95c3a31c9da3203), XV64(0x1be8def60b6154e6), XV64(0x7d66abd19457254), - XV64(0x8762f637ac0941f), XV64(0x14489b2868e4b2ad), XV64(0x6fc7fefaa5fd448), XV64(0x1ac2cba4b87bf2fa), - XV64(0x58ed0bc2e7f3c8f), XV64(0x19b064f73c5b1a3d), XV64(0xb048030fee07cd8), XV64(0x173a347becc45a6a), - XV64(0x189a71a58f41bc21), XV64(0x4a4c5ee9d659a93), XV64(0x161021295fdefc76), XV64(0xa2e95624dfadac4), - XV64(0x950aa9598d530e0), XV64(0x156e1ede8af11652), XV64(0x7dafa19484a70b7), XV64(0x1be44e525a6e5605), - XV64(0x14440b8c39ebb04e), XV64(0x87abfc72bcf96fc), XV64(0x1ace5b00e974f019), XV64(0x6f0ef4bfb50d6ab), - XV64(0x1c3224ef432b2451), XV64(0xc90a4510f02e3), XV64(0x12b8746393b46406), XV64(0xe86c028819042b4), - XV64(0x12685f6e215a4ff), XV64(0x1d1831bdf031824d), XV64(0xfacd57a328ae4a8), XV64(0x1392613120aec21a), - XV64(0x10ec5ec6f581283e), XV64(0xcd2ea8de7a50e8c), XV64(0x1e660e4a251e6869), XV64(0x258ba01373a4edb), - XV64(0xdf8ffdf54bfa890), XV64(0x11c64b94469b8e22), XV64(0x372af538420e8c7), XV64(0x1f4c1b189604ce75), - XV64(0xb1da1785cfe791e), XV64(0x172315334eda5fac), XV64(0x597f1f48c613949), XV64(0x19a945bf9e451ffb), - XV64(0x16090061fdc0f9b0), XV64(0xa37b42aefe4df02), XV64(0x188350ed2d5fb9e7), XV64(0x4bde4a63f7b9f55), - XV64(0x7c3db51ea547571), XV64(0x1bfd6f1af87053c3), XV64(0x9498bdd3acb3526), XV64(0x15773f9628ef1394), - XV64(0x1ad77a484b6af5df), XV64(0x6e9ce03594ed36d), XV64(0x145d2ac49bf5b588), XV64(0x8639e8f89d1933a), - XV64(0x12a1552b31aa61c0), XV64(0xe9fe160238e4772), XV64(0x1c2b05a7e1352197), XV64(0x15b1ecf3110725), - XV64(0xfb5f4329094e16e), XV64(0x138b407982b0c7dc), XV64(0x13fa4be400ba139), XV64(0x1d0110f5522f878b), - XV64(0x1e7f2f0287006daf), XV64(0x2419b4995244b1d), XV64(0x10f57f8e579f2df8), XV64(0xccbcbc545bb0b4a), - XV64(0x36b8e1b263eed01), XV64(0x1f553a50341acbb3), XV64(0xde1de97f6a1ad56), XV64(0x11df6adce4858be4), - XV64(0xe9371c472814591), XV64(0x12adc58f60a56323), XV64(0x192148a21e05c6), XV64(0x1c279503b03a2374), - XV64(0x1387d0ddd3bfc53f), XV64(0xfb96496c19be38d), XV64(0x1d0d805103208568), XV64(0x133341a1104a3da), - XV64(0x24d0bedc42b49fe), XV64(0x1e73bfa6d60f6f4c), XV64(0xcc75b6114b409a9), XV64(0x10f9ef2a06902f1b), - XV64(0x1f59aaf46515c950), XV64(0x3671ebf7731efe2), XV64(0x11d3fa78b58a8907), XV64(0xded4e33a7aeafb5), - XV64(0x172f85971fd55d4f), XV64(0xb1131dc0df17bfd), XV64(0x19a5d51bcf4a1d18), XV64(0x59b6150dd6e3baa), - XV64(0xa3b248ebeebdde1), XV64(0x160590c5accffb53), XV64(0x4b174026e749db6), XV64(0x188fc0497c50bb04), - XV64(0x1bf1ffbea97f5120), XV64(0x7cf4bf5bb5b7792), XV64(0x157baf3279e01177), XV64(0x9451b796bc437c5), - XV64(0x6e55ea70841d18e), XV64(0x1adbeaec1a65f73c), XV64(0x86f0e2bd8de91d9), XV64(0x1451ba60cafab76b), - XV64(0x163b42f0b9fcf23c), XV64(0xa05f6bbabd8d48e), XV64(0x18b1127c6963b26b), XV64(0x48fa6377b4794d9), - XV64(0xb2fe3e918c27292), XV64(0x171157a20ae65420), XV64(0x5a5b365c85d32c5), XV64(0x199b072eda791477), - XV64(0x1ae538d90f56fe53), XV64(0x6db8c921d72d8e1), XV64(0x146f6855dfc9be04), XV64(0x851dc1ecded98b6), - XV64(0x7f199c0ae687efd), XV64(0x1bcf2d8bbc4c584f), XV64(0x97bc94c7ef73eaa), XV64(0x15457d076cd31818), - XV64(0xf87b6a3d4a8eae2), XV64(0x13b902e8c68ccc50), XV64(0x10de62f0437aab5), XV64(0x1d33526416138c07), - XV64(0x129317ba75966a4c), XV64(0xeada3f167b24cfe), XV64(0x1c194736a5092a1b), XV64(0x27f37db72d0ca9), - XV64(0x359cc8a6202e68d), XV64(0x1f6778c17026c03f), XV64(0xdd39c06b29da6da), XV64(0x11ed284da0b98068), - XV64(0x1e4d6d93c33c6623), XV64(0x273d9d8d1184091), XV64(0x10c73d1f13a32674), XV64(0xcf98954018700c6), - XV64(0x13b5924c9783ceb3), XV64(0xf8b260785a7e801), XV64(0x1d3fc2c0471c8ee4), XV64(0x101768b5538a856), - XV64(0xea1335536bd4e1d), XV64(0x129f871e249968af), XV64(0x2b63d9e6220e4a), XV64(0x1c15d792f40628f8), - XV64(0x1f6be8652129c2dc), XV64(0x3555c2e330de46e), XV64(0x11e1b8e9f1b6828b), XV64(0xddf0ca2e392a439), - XV64(0x27f497c80174272), XV64(0x1e41fd37923364c0), XV64(0xcf519f050880225), XV64(0x10cbadbb42ac2497), - XV64(0xa09661ffad7d66d), XV64(0x1637d254e8f3f0df), XV64(0x48336932a48963a), XV64(0x18bd82d8386cb088), - XV64(0x171dc7065be956c3), XV64(0xb23734d49cd7071), XV64(0x1997978a8b761694), XV64(0x5a923c199523026), - XV64(0x6d71c364c7dda02), XV64(0x1ae9a87d5e59fcb0), XV64(0x85d4cba9ce29a55), XV64(0x1463f8f18ec6bce7), - XV64(0x1bc3bd2fed435aac), XV64(0x7fd0964ff677c1e), XV64(0x1549eda33ddc1afb), XV64(0x97759e82ff83c49), - XV64(0x1d26e388e5028b22), XV64(0x11857c3f726ad90), XV64(0x13acb304359dcb75), XV64(0xf92074f27b9edc7), - XV64(0x324291443c0b8c), XV64(0x1c0cf6da56182d3e), XV64(0xeb8121d94a34bdb), XV64(0x1286a65686876d69), - XV64(0x11f899a153a8874d), XV64(0xdc62dea418ca1ff), XV64(0x1f72c92d8337c71a), XV64(0x34c7d669113e1a8), - XV64(0xcec38b8f29607e3), XV64(0x10d28cf3e0b22151), XV64(0x2666834220947b4), XV64(0x1e58dc7f302d6106), - XV64(0x49a17db885693fc), XV64(0x18a4a3909a72b54e), XV64(0xa10475758c9d3ab), XV64(0x162ef31c4aedf519), - XV64(0x198eb6c229681352), XV64(0x5b002893b4c35e0), XV64(0x1704e64ef9f75305), XV64(0xb3a5205ebd375b7), - XV64(0x8446df23efc9f93), XV64(0x147ad9b92cd8b921), XV64(0x6ce3d7eee63dfc4), XV64(0x1af08935fc47f976), - XV64(0x1550cceb9fc21f3d), XV64(0x96e78a08de6398f), XV64(0x1bda9c674f5d5f6a), XV64(0x7e4282c5d7979d8), - XV64(0x18a83334cb7db7ad), XV64(0x496877fd959911f), XV64(0x162263b81be2f7fa), XV64(0xa1cd7f309c6d148), - XV64(0x5bc922d6a433703), XV64(0x19822666786711b1), XV64(0xb36c2a1badc7754), XV64(0x170876eaa8f851e6), - XV64(0x1476491d7dd7bbc2), XV64(0x848fd566ff39d70), XV64(0x1afc1991ad48fb95), XV64(0x6c2addabf6cdd27), - XV64(0x962e804dce93b6c), XV64(0x155c5c4fcecd1dde), XV64(0x7e8b8880c767b3b), XV64(0x1bd60cc31e525d89), - XV64(0x114c767a629af73), XV64(0x1d2a732cb40d89c1), XV64(0xf9e97eb76b6ef24), XV64(0x13a023a06492c996), - XV64(0x1c00667e07172fdd), XV64(0x3ed2351533096f), XV64(0x128a36f2d7886f8a), XV64(0xeb482b9c5ac4938), - XV64(0xdcabd4e1083a31c), XV64(0x11f4090502a785ae), XV64(0x340edc2c01ce34b), XV64(0x1f7e5989d238c5f9), - XV64(0x10de1c57b1bd23b2), XV64(0xce0a81ca3990500), XV64(0x1e544cdb612263e5), XV64(0x26af89073064557) -}; - -#endif /* if defined(XRABPLY_TYPE64) */ - -#if defined(XRABPLY_TYPE32) - -#if !defined(XV32) -#define XV32(v) ((xply_word) v ## ULL) -#endif - -#define XRAB_ROOTPOLY XV32(0xabd1f37b) - -#define XRAB_SHIFT 23 -#define XRAB_WNDSIZE 20 - -typedef unsigned XRABPLY_TYPE32 xply_word; - -static const xply_word T[256] = { - XV32(0x0), XV32(0xabd1f37b), XV32(0x57a3e6f6), XV32(0xfc72158d), - XV32(0x4963e97), XV32(0xaf47cdec), XV32(0x5335d861), XV32(0xf8e42b1a), - XV32(0x92c7d2e), XV32(0xa2fd8e55), XV32(0x5e8f9bd8), XV32(0xf55e68a3), - XV32(0xdba43b9), XV32(0xa66bb0c2), XV32(0x5a19a54f), XV32(0xf1c85634), - XV32(0x1258fa5c), XV32(0xb9890927), XV32(0x45fb1caa), XV32(0xee2aefd1), - XV32(0x16cec4cb), XV32(0xbd1f37b0), XV32(0x416d223d), XV32(0xeabcd146), - XV32(0x1b748772), XV32(0xb0a57409), XV32(0x4cd76184), XV32(0xe70692ff), - XV32(0x1fe2b9e5), XV32(0xb4334a9e), XV32(0x48415f13), XV32(0xe390ac68), - XV32(0x24b1f4b8), XV32(0x8f6007c3), XV32(0x7312124e), XV32(0xd8c3e135), - XV32(0x2027ca2f), XV32(0x8bf63954), XV32(0x77842cd9), XV32(0xdc55dfa2), - XV32(0x2d9d8996), XV32(0x864c7aed), XV32(0x7a3e6f60), XV32(0xd1ef9c1b), - XV32(0x290bb701), XV32(0x82da447a), XV32(0x7ea851f7), XV32(0xd579a28c), - XV32(0x36e90ee4), XV32(0x9d38fd9f), XV32(0x614ae812), XV32(0xca9b1b69), - XV32(0x327f3073), XV32(0x99aec308), XV32(0x65dcd685), XV32(0xce0d25fe), - XV32(0x3fc573ca), XV32(0x941480b1), XV32(0x6866953c), XV32(0xc3b76647), - XV32(0x3b534d5d), XV32(0x9082be26), XV32(0x6cf0abab), XV32(0xc72158d0), - XV32(0x4963e970), XV32(0xe2b21a0b), XV32(0x1ec00f86), XV32(0xb511fcfd), - XV32(0x4df5d7e7), XV32(0xe624249c), XV32(0x1a563111), XV32(0xb187c26a), - XV32(0x404f945e), XV32(0xeb9e6725), XV32(0x17ec72a8), XV32(0xbc3d81d3), - XV32(0x44d9aac9), XV32(0xef0859b2), XV32(0x137a4c3f), XV32(0xb8abbf44), - XV32(0x5b3b132c), XV32(0xf0eae057), XV32(0xc98f5da), XV32(0xa74906a1), - XV32(0x5fad2dbb), XV32(0xf47cdec0), XV32(0x80ecb4d), XV32(0xa3df3836), - XV32(0x52176e02), XV32(0xf9c69d79), XV32(0x5b488f4), XV32(0xae657b8f), - XV32(0x56815095), XV32(0xfd50a3ee), XV32(0x122b663), XV32(0xaaf34518), - XV32(0x6dd21dc8), XV32(0xc603eeb3), XV32(0x3a71fb3e), XV32(0x91a00845), - XV32(0x6944235f), XV32(0xc295d024), XV32(0x3ee7c5a9), XV32(0x953636d2), - XV32(0x64fe60e6), XV32(0xcf2f939d), XV32(0x335d8610), XV32(0x988c756b), - XV32(0x60685e71), XV32(0xcbb9ad0a), XV32(0x37cbb887), XV32(0x9c1a4bfc), - XV32(0x7f8ae794), XV32(0xd45b14ef), XV32(0x28290162), XV32(0x83f8f219), - XV32(0x7b1cd903), XV32(0xd0cd2a78), XV32(0x2cbf3ff5), XV32(0x876ecc8e), - XV32(0x76a69aba), XV32(0xdd7769c1), XV32(0x21057c4c), XV32(0x8ad48f37), - XV32(0x7230a42d), XV32(0xd9e15756), XV32(0x259342db), XV32(0x8e42b1a0), - XV32(0x3916219b), XV32(0x92c7d2e0), XV32(0x6eb5c76d), XV32(0xc5643416), - XV32(0x3d801f0c), XV32(0x9651ec77), XV32(0x6a23f9fa), XV32(0xc1f20a81), - XV32(0x303a5cb5), XV32(0x9bebafce), XV32(0x6799ba43), XV32(0xcc484938), - XV32(0x34ac6222), XV32(0x9f7d9159), XV32(0x630f84d4), XV32(0xc8de77af), - XV32(0x2b4edbc7), XV32(0x809f28bc), XV32(0x7ced3d31), XV32(0xd73cce4a), - XV32(0x2fd8e550), XV32(0x8409162b), XV32(0x787b03a6), XV32(0xd3aaf0dd), - XV32(0x2262a6e9), XV32(0x89b35592), XV32(0x75c1401f), XV32(0xde10b364), - XV32(0x26f4987e), XV32(0x8d256b05), XV32(0x71577e88), XV32(0xda868df3), - XV32(0x1da7d523), XV32(0xb6762658), XV32(0x4a0433d5), XV32(0xe1d5c0ae), - XV32(0x1931ebb4), XV32(0xb2e018cf), XV32(0x4e920d42), XV32(0xe543fe39), - XV32(0x148ba80d), XV32(0xbf5a5b76), XV32(0x43284efb), XV32(0xe8f9bd80), - XV32(0x101d969a), XV32(0xbbcc65e1), XV32(0x47be706c), XV32(0xec6f8317), - XV32(0xfff2f7f), XV32(0xa42edc04), XV32(0x585cc989), XV32(0xf38d3af2), - XV32(0xb6911e8), XV32(0xa0b8e293), XV32(0x5ccaf71e), XV32(0xf71b0465), - XV32(0x6d35251), XV32(0xad02a12a), XV32(0x5170b4a7), XV32(0xfaa147dc), - XV32(0x2456cc6), XV32(0xa9949fbd), XV32(0x55e68a30), XV32(0xfe37794b), - XV32(0x7075c8eb), XV32(0xdba43b90), XV32(0x27d62e1d), XV32(0x8c07dd66), - XV32(0x74e3f67c), XV32(0xdf320507), XV32(0x2340108a), XV32(0x8891e3f1), - XV32(0x7959b5c5), XV32(0xd28846be), XV32(0x2efa5333), XV32(0x852ba048), - XV32(0x7dcf8b52), XV32(0xd61e7829), XV32(0x2a6c6da4), XV32(0x81bd9edf), - XV32(0x622d32b7), XV32(0xc9fcc1cc), XV32(0x358ed441), XV32(0x9e5f273a), - XV32(0x66bb0c20), XV32(0xcd6aff5b), XV32(0x3118ead6), XV32(0x9ac919ad), - XV32(0x6b014f99), XV32(0xc0d0bce2), XV32(0x3ca2a96f), XV32(0x97735a14), - XV32(0x6f97710e), XV32(0xc4468275), XV32(0x383497f8), XV32(0x93e56483), - XV32(0x54c43c53), XV32(0xff15cf28), XV32(0x367daa5), XV32(0xa8b629de), - XV32(0x505202c4), XV32(0xfb83f1bf), XV32(0x7f1e432), XV32(0xac201749), - XV32(0x5de8417d), XV32(0xf639b206), XV32(0xa4ba78b), XV32(0xa19a54f0), - XV32(0x597e7fea), XV32(0xf2af8c91), XV32(0xedd991c), XV32(0xa50c6a67), - XV32(0x469cc60f), XV32(0xed4d3574), XV32(0x113f20f9), XV32(0xbaeed382), - XV32(0x420af898), XV32(0xe9db0be3), XV32(0x15a91e6e), XV32(0xbe78ed15), - XV32(0x4fb0bb21), XV32(0xe461485a), XV32(0x18135dd7), XV32(0xb3c2aeac), - XV32(0x4b2685b6), XV32(0xe0f776cd), XV32(0x1c856340), XV32(0xb754903b) -}; - -static const xply_word U[256] = { - XV32(0x0), XV32(0x5ce33923), XV32(0x1217813d), XV32(0x4ef4b81e), - XV32(0x242f027a), XV32(0x78cc3b59), XV32(0x36388347), XV32(0x6adbba64), - XV32(0x485e04f4), XV32(0x14bd3dd7), XV32(0x5a4985c9), XV32(0x6aabcea), - XV32(0x6c71068e), XV32(0x30923fad), XV32(0x7e6687b3), XV32(0x2285be90), - XV32(0x3b6dfa93), XV32(0x678ec3b0), XV32(0x297a7bae), XV32(0x7599428d), - XV32(0x1f42f8e9), XV32(0x43a1c1ca), XV32(0xd5579d4), XV32(0x51b640f7), - XV32(0x7333fe67), XV32(0x2fd0c744), XV32(0x61247f5a), XV32(0x3dc74679), - XV32(0x571cfc1d), XV32(0xbffc53e), XV32(0x450b7d20), XV32(0x19e84403), - XV32(0x76dbf526), XV32(0x2a38cc05), XV32(0x64cc741b), XV32(0x382f4d38), - XV32(0x52f4f75c), XV32(0xe17ce7f), XV32(0x40e37661), XV32(0x1c004f42), - XV32(0x3e85f1d2), XV32(0x6266c8f1), XV32(0x2c9270ef), XV32(0x707149cc), - XV32(0x1aaaf3a8), XV32(0x4649ca8b), XV32(0x8bd7295), XV32(0x545e4bb6), - XV32(0x4db60fb5), XV32(0x11553696), XV32(0x5fa18e88), XV32(0x342b7ab), - XV32(0x69990dcf), XV32(0x357a34ec), XV32(0x7b8e8cf2), XV32(0x276db5d1), - XV32(0x5e80b41), XV32(0x590b3262), XV32(0x17ff8a7c), XV32(0x4b1cb35f), - XV32(0x21c7093b), XV32(0x7d243018), XV32(0x33d08806), XV32(0x6f33b125), - XV32(0x46661937), XV32(0x1a852014), XV32(0x5471980a), XV32(0x892a129), - XV32(0x62491b4d), XV32(0x3eaa226e), XV32(0x705e9a70), XV32(0x2cbda353), - XV32(0xe381dc3), XV32(0x52db24e0), XV32(0x1c2f9cfe), XV32(0x40cca5dd), - XV32(0x2a171fb9), XV32(0x76f4269a), XV32(0x38009e84), XV32(0x64e3a7a7), - XV32(0x7d0be3a4), XV32(0x21e8da87), XV32(0x6f1c6299), XV32(0x33ff5bba), - XV32(0x5924e1de), XV32(0x5c7d8fd), XV32(0x4b3360e3), XV32(0x17d059c0), - XV32(0x3555e750), XV32(0x69b6de73), XV32(0x2742666d), XV32(0x7ba15f4e), - XV32(0x117ae52a), XV32(0x4d99dc09), XV32(0x36d6417), XV32(0x5f8e5d34), - XV32(0x30bdec11), XV32(0x6c5ed532), XV32(0x22aa6d2c), XV32(0x7e49540f), - XV32(0x1492ee6b), XV32(0x4871d748), XV32(0x6856f56), XV32(0x5a665675), - XV32(0x78e3e8e5), XV32(0x2400d1c6), XV32(0x6af469d8), XV32(0x361750fb), - XV32(0x5cccea9f), XV32(0x2fd3bc), XV32(0x4edb6ba2), XV32(0x12385281), - XV32(0xbd01682), XV32(0x57332fa1), XV32(0x19c797bf), XV32(0x4524ae9c), - XV32(0x2fff14f8), XV32(0x731c2ddb), XV32(0x3de895c5), XV32(0x610bace6), - XV32(0x438e1276), XV32(0x1f6d2b55), XV32(0x5199934b), XV32(0xd7aaa68), - XV32(0x67a1100c), XV32(0x3b42292f), XV32(0x75b69131), XV32(0x2955a812), - XV32(0x271dc115), XV32(0x7bfef836), XV32(0x350a4028), XV32(0x69e9790b), - XV32(0x332c36f), XV32(0x5fd1fa4c), XV32(0x11254252), XV32(0x4dc67b71), - XV32(0x6f43c5e1), XV32(0x33a0fcc2), XV32(0x7d5444dc), XV32(0x21b77dff), - XV32(0x4b6cc79b), XV32(0x178ffeb8), XV32(0x597b46a6), XV32(0x5987f85), - XV32(0x1c703b86), XV32(0x409302a5), XV32(0xe67babb), XV32(0x52848398), - XV32(0x385f39fc), XV32(0x64bc00df), XV32(0x2a48b8c1), XV32(0x76ab81e2), - XV32(0x542e3f72), XV32(0x8cd0651), XV32(0x4639be4f), XV32(0x1ada876c), - XV32(0x70013d08), XV32(0x2ce2042b), XV32(0x6216bc35), XV32(0x3ef58516), - XV32(0x51c63433), XV32(0xd250d10), XV32(0x43d1b50e), XV32(0x1f328c2d), - XV32(0x75e93649), XV32(0x290a0f6a), XV32(0x67feb774), XV32(0x3b1d8e57), - XV32(0x199830c7), XV32(0x457b09e4), XV32(0xb8fb1fa), XV32(0x576c88d9), - XV32(0x3db732bd), XV32(0x61540b9e), XV32(0x2fa0b380), XV32(0x73438aa3), - XV32(0x6aabcea0), XV32(0x3648f783), XV32(0x78bc4f9d), XV32(0x245f76be), - XV32(0x4e84ccda), XV32(0x1267f5f9), XV32(0x5c934de7), XV32(0x7074c4), - XV32(0x22f5ca54), XV32(0x7e16f377), XV32(0x30e24b69), XV32(0x6c01724a), - XV32(0x6dac82e), XV32(0x5a39f10d), XV32(0x14cd4913), XV32(0x482e7030), - XV32(0x617bd822), XV32(0x3d98e101), XV32(0x736c591f), XV32(0x2f8f603c), - XV32(0x4554da58), XV32(0x19b7e37b), XV32(0x57435b65), XV32(0xba06246), - XV32(0x2925dcd6), XV32(0x75c6e5f5), XV32(0x3b325deb), XV32(0x67d164c8), - XV32(0xd0adeac), XV32(0x51e9e78f), XV32(0x1f1d5f91), XV32(0x43fe66b2), - XV32(0x5a1622b1), XV32(0x6f51b92), XV32(0x4801a38c), XV32(0x14e29aaf), - XV32(0x7e3920cb), XV32(0x22da19e8), XV32(0x6c2ea1f6), XV32(0x30cd98d5), - XV32(0x12482645), XV32(0x4eab1f66), XV32(0x5fa778), XV32(0x5cbc9e5b), - XV32(0x3667243f), XV32(0x6a841d1c), XV32(0x2470a502), XV32(0x78939c21), - XV32(0x17a02d04), XV32(0x4b431427), XV32(0x5b7ac39), XV32(0x5954951a), - XV32(0x338f2f7e), XV32(0x6f6c165d), XV32(0x2198ae43), XV32(0x7d7b9760), - XV32(0x5ffe29f0), XV32(0x31d10d3), XV32(0x4de9a8cd), XV32(0x110a91ee), - XV32(0x7bd12b8a), XV32(0x273212a9), XV32(0x69c6aab7), XV32(0x35259394), - XV32(0x2ccdd797), XV32(0x702eeeb4), XV32(0x3eda56aa), XV32(0x62396f89), - XV32(0x8e2d5ed), XV32(0x5401ecce), XV32(0x1af554d0), XV32(0x46166df3), - XV32(0x6493d363), XV32(0x3870ea40), XV32(0x7684525e), XV32(0x2a676b7d), - XV32(0x40bcd119), XV32(0x1c5fe83a), XV32(0x52ab5024), XV32(0xe486907) -}; - -#endif /* if defined(XRABPLY_TYPE32) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xtypes.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xtypes.h deleted file mode 100644 index 3593a664..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xtypes.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XTYPES_H) -#define XTYPES_H - - - -typedef struct s_chanode { - struct s_chanode *next; - long icurr; -} chanode_t; - -typedef struct s_chastore { - chanode_t *head, *tail; - long isize, nsize; - chanode_t *ancur; - chanode_t *sncur; - long scurr; -} chastore_t; - -typedef struct s_xrecord { - struct s_xrecord *next; - char const *ptr; - long size; - unsigned long ha; -} xrecord_t; - -typedef struct s_xdfile { - chastore_t rcha; - long nrec; - unsigned int hbits; - xrecord_t **rhash; - long dstart, dend; - xrecord_t **recs; - char *rchg; - long *rindex; - long nreff; - unsigned long *ha; -} xdfile_t; - -typedef struct s_xdfenv { - xdfile_t xdf1, xdf2; -} xdfenv_t; - - - -#endif /* #if !defined(XTYPES_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.c deleted file mode 100644 index e1b0bc27..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.c +++ /dev/null @@ -1,580 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - - -#define XDL_GUESS_NLINES 256 - - - - -long xdl_bogosqrt(long n) { - long i; - - /* - * Classical integer square root approximation using shifts. - */ - for (i = 1; n > 0; n >>= 2) - i <<= 1; - - return i; -} - - -int xdl_emit_diffrec(char const *rec, long size, char const *pre, long psize, - xdemitcb_t *ecb) { - int i = 2; - mmbuffer_t mb[3]; - - mb[0].ptr = (char *) pre; - mb[0].size = psize; - mb[1].ptr = (char *) rec; - mb[1].size = size; - if (size > 0 && rec[size - 1] != '\n') { - mb[2].ptr = (char *) "\n\\ No newline at end of file\n"; - mb[2].size = strlen(mb[2].ptr); - i++; - } - if (ecb->outf(ecb->priv, mb, i) < 0) { - - return -1; - } - - return 0; -} - - -int xdl_init_mmfile(mmfile_t *mmf, long bsize, unsigned long flags) { - - mmf->flags = flags; - mmf->head = mmf->tail = NULL; - mmf->bsize = bsize; - mmf->fsize = 0; - mmf->rcur = mmf->wcur = NULL; - mmf->rpos = 0; - - return 0; -} - - -void xdl_free_mmfile(mmfile_t *mmf) { - mmblock_t *cur, *tmp; - - for (cur = mmf->head; (tmp = cur) != NULL;) { - cur = cur->next; - xdl_free(tmp); - } -} - - -int xdl_mmfile_iscompact(mmfile_t *mmf) { - - return mmf->head == mmf->tail; -} - - -int xdl_seek_mmfile(mmfile_t *mmf, long off) { - long bsize; - - if (xdl_mmfile_first(mmf, &bsize)) { - do { - if (off < bsize) { - mmf->rpos = off; - return 0; - } - off -= bsize; - } while (xdl_mmfile_next(mmf, &bsize)); - } - - return -1; -} - - -long xdl_read_mmfile(mmfile_t *mmf, void *data, long size) { - long rsize, csize; - char *ptr = data; - mmblock_t *rcur; - - for (rsize = 0, rcur = mmf->rcur; rcur && rsize < size;) { - if (mmf->rpos >= rcur->size) { - if (!(mmf->rcur = rcur = rcur->next)) - break; - mmf->rpos = 0; - } - csize = XDL_MIN(size - rsize, rcur->size - mmf->rpos); - memcpy(ptr, rcur->ptr + mmf->rpos, csize); - rsize += csize; - ptr += csize; - mmf->rpos += csize; - } - - return rsize; -} - - -long xdl_write_mmfile(mmfile_t *mmf, void const *data, long size) { - long wsize, bsize, csize; - mmblock_t *wcur; - - for (wsize = 0; wsize < size;) { - wcur = mmf->wcur; - if (wcur && (wcur->flags & XDL_MMB_READONLY)) - return wsize; - if (!wcur || wcur->size == wcur->bsize || - (mmf->flags & XDL_MMF_ATOMIC && wcur->size + size > wcur->bsize)) { - bsize = XDL_MAX(mmf->bsize, size); - if (!(wcur = (mmblock_t *) xdl_malloc(sizeof(mmblock_t) + bsize))) { - - return wsize; - } - wcur->flags = 0; - wcur->ptr = (char *) wcur + sizeof(mmblock_t); - wcur->size = 0; - wcur->bsize = bsize; - wcur->next = NULL; - if (!mmf->head) - mmf->head = wcur; - if (mmf->tail) - mmf->tail->next = wcur; - mmf->tail = wcur; - mmf->wcur = wcur; - } - csize = XDL_MIN(size - wsize, wcur->bsize - wcur->size); - memcpy(wcur->ptr + wcur->size, (char const *) data + wsize, csize); - wsize += csize; - wcur->size += csize; - mmf->fsize += csize; - } - - return size; -} - - -long xdl_writem_mmfile(mmfile_t *mmf, mmbuffer_t *mb, int nbuf) { - int i; - long size; - char *data; - - for (i = 0, size = 0; i < nbuf; i++) - size += mb[i].size; - if (!(data = (char *) xdl_mmfile_writeallocate(mmf, size))) - return -1; - for (i = 0; i < nbuf; i++) { - memcpy(data, mb[i].ptr, mb[i].size); - data += mb[i].size; - } - - return size; -} - - -void *xdl_mmfile_writeallocate(mmfile_t *mmf, long size) { - long bsize; - mmblock_t *wcur; - char *blk; - - if (!(wcur = mmf->wcur) || wcur->size + size > wcur->bsize) { - bsize = XDL_MAX(mmf->bsize, size); - if (!(wcur = (mmblock_t *) xdl_malloc(sizeof(mmblock_t) + bsize))) { - - return NULL; - } - wcur->flags = 0; - wcur->ptr = (char *) wcur + sizeof(mmblock_t); - wcur->size = 0; - wcur->bsize = bsize; - wcur->next = NULL; - if (!mmf->head) - mmf->head = wcur; - if (mmf->tail) - mmf->tail->next = wcur; - mmf->tail = wcur; - mmf->wcur = wcur; - } - - blk = wcur->ptr + wcur->size; - wcur->size += size; - mmf->fsize += size; - - return blk; -} - - -long xdl_mmfile_ptradd(mmfile_t *mmf, char *ptr, long size, unsigned long flags) { - mmblock_t *wcur; - - if (!(wcur = (mmblock_t *) xdl_malloc(sizeof(mmblock_t)))) { - - return -1; - } - wcur->flags = flags; - wcur->ptr = ptr; - wcur->size = wcur->bsize = size; - wcur->next = NULL; - if (!mmf->head) - mmf->head = wcur; - if (mmf->tail) - mmf->tail->next = wcur; - mmf->tail = wcur; - mmf->wcur = wcur; - - mmf->fsize += size; - - return size; -} - - -long xdl_copy_mmfile(mmfile_t *mmf, long size, xdemitcb_t *ecb) { - long rsize, csize; - mmblock_t *rcur; - mmbuffer_t mb; - - for (rsize = 0, rcur = mmf->rcur; rcur && rsize < size;) { - if (mmf->rpos >= rcur->size) { - if (!(mmf->rcur = rcur = rcur->next)) - break; - mmf->rpos = 0; - } - csize = XDL_MIN(size - rsize, rcur->size - mmf->rpos); - mb.ptr = rcur->ptr + mmf->rpos; - mb.size = csize; - if (ecb->outf(ecb->priv, &mb, 1) < 0) { - - return rsize; - } - rsize += csize; - mmf->rpos += csize; - } - - return rsize; -} - - -void *xdl_mmfile_first(mmfile_t *mmf, long *size) { - - if (!(mmf->rcur = mmf->head)) - return NULL; - - *size = mmf->rcur->size; - - return mmf->rcur->ptr; -} - - -void *xdl_mmfile_next(mmfile_t *mmf, long *size) { - - if (!mmf->rcur || !(mmf->rcur = mmf->rcur->next)) - return NULL; - - *size = mmf->rcur->size; - - return mmf->rcur->ptr; -} - - -long xdl_mmfile_size(mmfile_t *mmf) { - - return mmf->fsize; -} - - -int xdl_mmfile_cmp(mmfile_t *mmf1, mmfile_t *mmf2) { - int cres; - long size, bsize1, bsize2, size1, size2; - char const *blk1, *cur1, *top1; - char const *blk2, *cur2, *top2; - - if ((cur1 = blk1 = xdl_mmfile_first(mmf1, &bsize1)) != NULL) - top1 = blk1 + bsize1; - if ((cur2 = blk2 = xdl_mmfile_first(mmf2, &bsize2)) != NULL) - top2 = blk2 + bsize2; - if (!cur1) { - if (!cur2 || xdl_mmfile_size(mmf2) == 0) - return 0; - return -*cur2; - } else if (!cur2) - return xdl_mmfile_size(mmf1) ? *cur1: 0; - for (;;) { - if (cur1 >= top1) { - if ((cur1 = blk1 = xdl_mmfile_next(mmf1, &bsize1)) != NULL) - top1 = blk1 + bsize1; - } - if (cur2 >= top2) { - if ((cur2 = blk2 = xdl_mmfile_next(mmf2, &bsize2)) != NULL) - top2 = blk2 + bsize2; - } - if (!cur1) { - if (!cur2) - break; - return -*cur2; - } else if (!cur2) - return *cur1; - size1 = top1 - cur1; - size2 = top2 - cur2; - size = XDL_MIN(size1, size2); - if ((cres = memcmp(cur1, cur2, size)) != 0) - return cres; - cur1 += size; - cur2 += size; - } - - return 0; -} - - -int xdl_mmfile_compact(mmfile_t *mmfo, mmfile_t *mmfc, long bsize, unsigned long flags) { - long fsize = xdl_mmfile_size(mmfo), size; - char *data; - char const *blk; - - if (xdl_init_mmfile(mmfc, bsize, flags) < 0) { - - return -1; - } - if (!(data = (char *) xdl_mmfile_writeallocate(mmfc, fsize))) { - - xdl_free_mmfile(mmfc); - return -1; - } - if ((blk = (char const *) xdl_mmfile_first(mmfo, &size)) != NULL) { - do { - memcpy(data, blk, size); - data += size; - } while ((blk = (char const *) xdl_mmfile_next(mmfo, &size)) != NULL); - } - - return 0; -} - - -int xdl_mmfile_outf(void *priv, mmbuffer_t *mb, int nbuf) { - mmfile_t *mmf = priv; - - if (xdl_writem_mmfile(mmf, mb, nbuf) < 0) { - - return -1; - } - - return 0; -} - - -int xdl_cha_init(chastore_t *cha, long isize, long icount) { - - cha->head = cha->tail = NULL; - cha->isize = isize; - cha->nsize = icount * isize; - cha->ancur = cha->sncur = NULL; - cha->scurr = 0; - - return 0; -} - - -void xdl_cha_free(chastore_t *cha) { - chanode_t *cur, *tmp; - - for (cur = cha->head; (tmp = cur) != NULL;) { - cur = cur->next; - xdl_free(tmp); - } -} - - -void *xdl_cha_alloc(chastore_t *cha) { - chanode_t *ancur; - void *data; - - if (!(ancur = cha->ancur) || ancur->icurr == cha->nsize) { - if (!(ancur = (chanode_t *) xdl_malloc(sizeof(chanode_t) + cha->nsize))) { - - return NULL; - } - ancur->icurr = 0; - ancur->next = NULL; - if (cha->tail) - cha->tail->next = ancur; - if (!cha->head) - cha->head = ancur; - cha->tail = ancur; - cha->ancur = ancur; - } - - data = (char *) ancur + sizeof(chanode_t) + ancur->icurr; - ancur->icurr += cha->isize; - - return data; -} - - -void *xdl_cha_first(chastore_t *cha) { - chanode_t *sncur; - - if (!(cha->sncur = sncur = cha->head)) - return NULL; - - cha->scurr = 0; - - return (char *) sncur + sizeof(chanode_t) + cha->scurr; -} - - -void *xdl_cha_next(chastore_t *cha) { - chanode_t *sncur; - - if (!(sncur = cha->sncur)) - return NULL; - cha->scurr += cha->isize; - if (cha->scurr == sncur->icurr) { - if (!(sncur = cha->sncur = sncur->next)) - return NULL; - cha->scurr = 0; - } - - return (char *) sncur + sizeof(chanode_t) + cha->scurr; -} - - -long xdl_guess_lines(mmfile_t *mf) { - long nl = 0, size, tsize = 0; - char const *data, *cur, *top; - - if ((cur = data = xdl_mmfile_first(mf, &size)) != NULL) { - for (top = data + size; nl < XDL_GUESS_NLINES;) { - if (cur >= top) { - tsize += (long) (cur - data); - if (!(cur = data = xdl_mmfile_next(mf, &size))) - break; - top = data + size; - } - nl++; - if (!(cur = memchr(cur, '\n', top - cur))) - cur = top; - else - cur++; - } - tsize += (long) (cur - data); - } - - if (nl && tsize) - nl = xdl_mmfile_size(mf) / (tsize / nl); - - return nl + 1; -} - - -unsigned long xdl_hash_record(char const **data, char const *top) { - unsigned long ha = 5381; - char const *ptr = *data; - - for (; ptr < top && *ptr != '\n'; ptr++) { - ha += (ha << 5); - ha ^= (unsigned long) *ptr; - } - *data = ptr < top ? ptr + 1: ptr; - - return ha; -} - - -unsigned int xdl_hashbits(unsigned int size) { - unsigned int val = 1, bits = 0; - - for (; val < size && bits < CHAR_BIT * sizeof(unsigned int); val <<= 1, bits++); - return bits ? bits: 1; -} - - -int xdl_num_out(char *out, long val) { - char *ptr, *str = out; - char buf[32]; - - ptr = buf + sizeof(buf) - 1; - *ptr = '\0'; - if (val < 0) { - *--ptr = '-'; - val = -val; - } - for (; val && ptr > buf; val /= 10) - *--ptr = "0123456789"[val % 10]; - if (*ptr) - for (; *ptr; ptr++, str++) - *str = *ptr; - else - *str++ = '0'; - *str = '\0'; - - return str - out; -} - - -long xdl_atol(char const *str, char const **next) { - long val, base; - char const *top; - - for (top = str; XDL_ISDIGIT(*top); top++); - if (next) - *next = top; - for (val = 0, base = 1, top--; top >= str; top--, base *= 10) - val += base * (long)(*top - '0'); - return val; -} - - -int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2, xdemitcb_t *ecb) { - int nb = 0; - mmbuffer_t mb; - char buf[128]; - - memcpy(buf, "@@ -", 4); - nb += 4; - - nb += xdl_num_out(buf + nb, c1 ? s1: s1 - 1); - - memcpy(buf + nb, ",", 1); - nb += 1; - - nb += xdl_num_out(buf + nb, c1); - - memcpy(buf + nb, " +", 2); - nb += 2; - - nb += xdl_num_out(buf + nb, c2 ? s2: s2 - 1); - - memcpy(buf + nb, ",", 1); - nb += 1; - - nb += xdl_num_out(buf + nb, c2); - - memcpy(buf + nb, " @@\n", 4); - nb += 4; - - mb.ptr = buf; - mb.size = nb; - if (ecb->outf(ecb->priv, &mb, 1) < 0) - return -1; - - return 0; -} - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.h b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.h deleted file mode 100644 index 4ceae33f..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xutils.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#if !defined(XUTILS_H) -#define XUTILS_H - - - -long xdl_bogosqrt(long n); -int xdl_emit_diffrec(char const *rec, long size, char const *pre, long psize, - xdemitcb_t *ecb); -int xdl_mmfile_outf(void *priv, mmbuffer_t *mb, int nbuf); -int xdl_cha_init(chastore_t *cha, long isize, long icount); -void xdl_cha_free(chastore_t *cha); -void *xdl_cha_alloc(chastore_t *cha); -void *xdl_cha_first(chastore_t *cha); -void *xdl_cha_next(chastore_t *cha); -long xdl_guess_lines(mmfile_t *mf); -unsigned long xdl_hash_record(char const **data, char const *top); -unsigned int xdl_hashbits(unsigned int size); -int xdl_num_out(char *out, long val); -long xdl_atol(char const *str, char const **next); -int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2, xdemitcb_t *ecb); - - - -#endif /* #if !defined(XUTILS_H) */ - diff --git a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xversion.c b/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xversion.c deleted file mode 100644 index d3184392..00000000 --- a/gems/xdiff-rb/ext/xdiff/xdiff/xdiff/xversion.c +++ /dev/null @@ -1,27 +0,0 @@ -/* - * LibXDiff by Davide Libenzi ( File Differential Library ) - * Copyright (C) 2003 Davide Libenzi - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Davide Libenzi - * - */ - -#include "xinclude.h" - - -char libxdiff_version[] = "LibXDiff v" PACKAGE_VERSION " by Davide Libenzi "; - diff --git a/gems/xdiff-rb/lib/xdiff.rb b/gems/xdiff-rb/lib/xdiff.rb deleted file mode 100644 index 6bd0aedc..00000000 --- a/gems/xdiff-rb/lib/xdiff.rb +++ /dev/null @@ -1,28 +0,0 @@ -# typed: true -module XDiff - VERSION = "0.0.1" - - def self.validate_arg(method, name, arg) - raise ArgumentError.new("(#{method}) '#{name}' cannot be nil") if arg.nil? - unless arg.is_a?(String) - raise ArgumentError.new( - "(#{method}) '#{name}' must be String (is #{arg.class})" - ) - end - end - - def self.diff(a, b) - validate_arg("diff", "a", a) - validate_arg("diff", "b", b) - Native.diff(a, b) - end - def self.patch(a, b) - validate_arg("patch", "a", a) - validate_arg("patch", "b", b) - Native.patch(a, b) - end -end - -# XDiff::Native methods defined by extension.cc -require "xdiff/extension" -XDiff::Native.init diff --git a/gems/xdiff-rb/test/xdiff_test.rb b/gems/xdiff-rb/test/xdiff_test.rb deleted file mode 100644 index 4e104be3..00000000 --- a/gems/xdiff-rb/test/xdiff_test.rb +++ /dev/null @@ -1,33 +0,0 @@ -# typed: true -require "minitest/autorun" -require "xdiff" - -class TestXDiff < Minitest::Test - def assert_patches(a, b) - diff = XDiff.diff(a, b) - - diff_hex = diff.unpack("H*").first - puts "diff (#{diff.size}): #{diff_hex}" - - refute_equal "", diff - stitched = XDiff.patch(a, diff) - assert_equal b, stitched - end - - def test_raises - assert_raises(ArgumentError) { XDiff.patch(nil, "") } - assert_raises(ArgumentError) { XDiff.patch("", nil) } - assert_raises(ArgumentError) { XDiff.patch("", 123) } - assert_raises(ArgumentError) { XDiff.patch(123, "") } - end - - def test_patch - assert_patches("foo bar", "foo bar") - assert_patches("", "") - assert_patches("foo", "") - assert_patches("", "foo") - assert_patches("abc\x00123", "123") - assert_patches("abc\x00123", "\x00") - assert_patches("\x00", "\x00") - end -end diff --git a/gems/xdiff-rb/xdiff.gemspec b/gems/xdiff-rb/xdiff.gemspec deleted file mode 100644 index fb9623fd..00000000 --- a/gems/xdiff-rb/xdiff.gemspec +++ /dev/null @@ -1,23 +0,0 @@ -require "rake" - -Gem::Specification.new do |s| - s.name = "xdiff" - s.version = "0.0.1" - s.summary = "libxdiff bindings" - s.description = "A simple hello world gem" - s.authors = ["Dylan Knutson"] - s.email = "dymk@dymk.co" - s.files = FileList[ - "lib/xdiff.rb", - "ext/xdiff/extconf.rb", - "ext/xdiff/extension.cc", - "ext/xdiff/xdiff.tar.gz", - ] - s.homepage = - "https://rubygems.org/gems/xdiff" - s.license = "MIT" - s.extensions = %w[ext/xdiff/extconf.rb] - s.add_development_dependency "rake", ">= 1.9.1" - s.add_development_dependency "rake-compiler", ">= 0.8.3" - s.add_development_dependency "minitest" -end diff --git a/sorbet/rbi/gems/diffy@3.4.3.rbi b/sorbet/rbi/gems/diffy@3.4.3.rbi deleted file mode 100644 index a1a30ab6..00000000 --- a/sorbet/rbi/gems/diffy@3.4.3.rbi +++ /dev/null @@ -1,184 +0,0 @@ -# typed: true - -# DO NOT EDIT MANUALLY -# This is an autogenerated file for types exported from the `diffy` gem. -# Please instead update this file by running `bin/tapioca gem diffy`. - - -# source://diffy//lib/diffy.rb#6 -module Diffy; end - -# source://diffy//lib/diffy/css.rb#2 -Diffy::CSS = T.let(T.unsafe(nil), String) - -# source://diffy//lib/diffy/css.rb#18 -Diffy::CSS_COLORBLIND_1 = T.let(T.unsafe(nil), String) - -# source://diffy//lib/diffy/diff.rb#2 -class Diffy::Diff - include ::Enumerable - - # supported options - # +:diff+:: A cli options string passed to diff - # +:source+:: Either _strings_ or _files_. Determines whether string1 - # and string2 should be interpreted as strings or file paths. - # +:include_diff_info+:: Include diff header info - # +:include_plus_and_minus_in_html+:: Show the +, -, ' ' at the - # beginning of lines in html output. - # - # @return [Diff] a new instance of Diff - # - # source://diffy//lib/diffy/diff.rb#35 - def initialize(string1, string2, options = T.unsafe(nil)); end - - # source://diffy//lib/diffy/diff.rb#43 - def diff; end - - # source://diffy//lib/diffy/diff.rb#79 - def each; end - - # source://diffy//lib/diffy/diff.rb#102 - def each_chunk; end - - # Returns the value of attribute options. - # - # source://diffy//lib/diffy/diff.rb#26 - def options; end - - # Returns the value of attribute string1. - # - # source://diffy//lib/diffy/diff.rb#26 - def string1; end - - # Returns the value of attribute string2. - # - # source://diffy//lib/diffy/diff.rb#26 - def string2; end - - # source://diffy//lib/diffy/diff.rb#122 - def tempfile(string); end - - # source://diffy//lib/diffy/diff.rb#134 - def to_s(format = T.unsafe(nil)); end - - private - - # source://diffy//lib/diffy/diff.rb#149 - def diff_bin; end - - # options pass to diff program - # - # source://diffy//lib/diffy/diff.rb#170 - def diff_options; end - - class << self - # source://diffy//lib/diffy/diff.rb#14 - def default_format; end - - # Sets the attribute default_format - # - # @param value the value to set the attribute default_format to. - # - # source://diffy//lib/diffy/diff.rb#13 - def default_format=(_arg0); end - - # source://diffy//lib/diffy/diff.rb#20 - def default_options; end - - # default options passed to new Diff objects - # - # source://diffy//lib/diffy/diff.rb#19 - def default_options=(_arg0); end - end -end - -# source://diffy//lib/diffy/diff.rb#3 -Diffy::Diff::ORIGINAL_DEFAULT_OPTIONS = T.let(T.unsafe(nil), Hash) - -# source://diffy//lib/diffy/format.rb#2 -module Diffy::Format - # ANSI color output suitable for terminal output - # - # source://diffy//lib/diffy/format.rb#4 - def color; end - - # Html output which does inline highlighting of changes between two lines. - # - # source://diffy//lib/diffy/format.rb#33 - def html; end - - # Basic html output which does not attempt to highlight the changes - # between lines, and is more performant. - # - # source://diffy//lib/diffy/format.rb#28 - def html_simple; end - - # Basic text output - # - # source://diffy//lib/diffy/format.rb#22 - def text; end -end - -# source://diffy//lib/diffy/html_formatter.rb#2 -class Diffy::HtmlFormatter - # @return [HtmlFormatter] a new instance of HtmlFormatter - # - # source://diffy//lib/diffy/html_formatter.rb#4 - def initialize(diff, options = T.unsafe(nil)); end - - # source://diffy//lib/diffy/html_formatter.rb#9 - def to_s; end - - private - - # remove +/- or wrap in html - # - # source://diffy//lib/diffy/html_formatter.rb#35 - def clean_line(line); end - - # source://diffy//lib/diffy/html_formatter.rb#124 - def highlight(lines); end - - # source://diffy//lib/diffy/html_formatter.rb#51 - def highlighted_words; end - - # source://diffy//lib/diffy/html_formatter.rb#104 - def reconstruct_characters(line_diff, type); end - - # source://diffy//lib/diffy/html_formatter.rb#91 - def split_characters(chunk); end - - # source://diffy//lib/diffy/html_formatter.rb#18 - def wrap_line(line); end - - # source://diffy//lib/diffy/html_formatter.rb#43 - def wrap_lines(lines); end -end - -# source://diffy//lib/diffy/split_diff.rb#2 -class Diffy::SplitDiff - # @return [SplitDiff] a new instance of SplitDiff - # - # source://diffy//lib/diffy/split_diff.rb#3 - def initialize(left, right, options = T.unsafe(nil)); end - - # source://diffy//lib/diffy/split_diff.rb#16 - def left; end - - # source://diffy//lib/diffy/split_diff.rb#16 - def right; end - - private - - # source://diffy//lib/diffy/split_diff.rb#23 - def split; end - - # source://diffy//lib/diffy/split_diff.rb#27 - def split_left; end - - # source://diffy//lib/diffy/split_diff.rb#38 - def split_right; end -end - -# source://diffy//lib/diffy.rb#7 -Diffy::WINDOWS = T.let(T.unsafe(nil), T.untyped) diff --git a/sorbet/rbi/gems/rb-bsdiff@0.1.0.rbi b/sorbet/rbi/gems/rb-bsdiff@0.1.0.rbi deleted file mode 100644 index 40757e88..00000000 --- a/sorbet/rbi/gems/rb-bsdiff@0.1.0.rbi +++ /dev/null @@ -1,9 +0,0 @@ -# typed: strict - -# DO NOT EDIT MANUALLY -# This is an autogenerated file for types exported from the `rb-bsdiff` gem. -# Please instead update this file by running `bin/tapioca gem rb-bsdiff`. - - -# THIS IS AN EMPTY RBI FILE. -# see https://github.com/Shopify/tapioca#manually-requiring-parts-of-a-gem diff --git a/sorbet/rbi/gems/xdiff@0.0.1.rbi b/sorbet/rbi/gems/xdiff@0.0.1.rbi deleted file mode 100644 index 664bf080..00000000 --- a/sorbet/rbi/gems/xdiff@0.0.1.rbi +++ /dev/null @@ -1,33 +0,0 @@ -# typed: strict - -# DO NOT EDIT MANUALLY -# This is an autogenerated file for types exported from the `xdiff` gem. -# Please instead update this file by running `bin/tapioca gem xdiff`. - - -# source://xdiff//../../xdiff-rb/lib/xdiff.rb#1 -module XDiff - class << self - # source://xdiff//../../xdiff-rb/lib/xdiff.rb#13 - def diff(a, b); end - - # source://xdiff//../../xdiff-rb/lib/xdiff.rb#18 - def patch(a, b); end - - # @raise [ArgumentError] - # - # source://xdiff//../../xdiff-rb/lib/xdiff.rb#4 - def validate_arg(method, name, arg); end - end -end - -class XDiff::Native - class << self - def diff(_arg0, _arg1); end - def init; end - def patch(_arg0, _arg1); end - end -end - -# source://xdiff//../../xdiff-rb/lib/xdiff.rb#2 -XDiff::VERSION = T.let(T.unsafe(nil), String)