Blob entry import/export helper

Rakefile

@@ -34,6 +34,16 @@ task :good_job_cron => :environment do
   end
 end
 
+namespace :blob_entries do
+  task :export_samples => :environment do
+    limit = ENV["limit"]&.to_i || raise("need 'limit' (num)")
+    out = ENV["out"] || raise("need 'out' (file path, .json encoded)")
+    BlobEntrySampleExporter.new.export_samples(limit, out)
+  end
+  task :import_samples => :environment do
+  end
+end
+
 task :good_job do
   proxies = ["direct", "proxy-1", "dedipath-1", "serverhost-1"]
   proxy = ENV["proxy"]