db sampler script for creating realistic development environment

Rakefile

@@ -74,6 +74,25 @@ namespace :blob_entries do
   end
 end
 
+namespace :db_sampler do
+  task :export => :environment do
+    url_names = ENV["url_names"] || raise("need 'url_names' (comma-separated)")
+    outfile_path = ENV["outfile"] || raise("need 'outfile' (file path)")
+    outfile = File.open(outfile_path, "wb")
+    DbSampler.new(outfile).export(url_names.split(","))
+  ensure
+    outfile.close if outfile
+  end
+
+  task :import => [:environment] do
+    infile_path = ENV["infile"] || raise("need 'infile' (file path)")
+    infile = File.open(infile_path, "rb")
+    DbSampler.new(infile).import
+  ensure
+    infile.close if infile
+  end
+end
+
 task :good_job do
   proxies = ["direct", "proxy-1", "dedipath-1", "serverhost-1"]
   proxy = ENV["proxy"]