# File lib/fastcst/changeset.rb, line 311
311:         def ChangeSet.make_changeset(cs_name, source, target)
312:             changes = ChangeSetBuilder.new(source, target)
313:             
314:             if not changes.has_changes?
315:                 UI.event :exit, "Nothing changed.  Exiting."
316:             else
317:                 begin
318:                     changes.detect_moved_files
319:                 
320:                     md_out = Zlib::GzipWriter.new(File.open(cs_name + ".yaml", "w"))
321:                     data_out = Zlib::GzipWriter.new(File.open(cs_name + ".fcs", "w"))
322:                 
323:                     changes.write_changeset(md_out, data_out)
324:                 ensure
325:                     md_out.close
326:                     data_out.close
327:                 end
328:             end
329:             
330:             return changes
331:         end