1 files changed, 46 insertions, 1 deletions
diff --git a/lib/tasks/gettext.rake b/lib/tasks/gettext.rake
index 9bdb6169b..4df92b008 100644
--- a/lib/tasks/gettext.rake
+++ b/lib/tasks/gettext.rake
@@ -35,14 +35,59 @@ namespace :gettext do
         end
    end
 
+   desc 'Update locale files with slightly changed English msgids using a csv file of old to new strings'
+   task :update_msgids_from_csv do
+       mapping_file = find_mapping_file(ENV['MAPPING_FILE'])
+       mappings = {}
+       CSV.parse(clean_csv_mapping_file(mapping_file)) do |csv_line|
+           from,to = csv_line
+           mappings[from] = to
+       end
+       Dir.glob("locale/**/app.po").each do |po_file|
+           lang_mappings = mappings.clone
+           lines = []
+           File.read(po_file).each_line do |line|
+               /^msgid "(.*)"/ =~ line
+               if $1 && mappings[$1]
+                    lines << "msgid \"#{lang_mappings.delete($1)}\""
+                 else
+                    lines << line
+                end
+           end
+           puts "Mappings unused in #{po_file}: #{lang_mappings.keys}" unless lang_mappings.empty?
+           File.open(po_file, "w") { |f| f.puts(lines) }
+       end
+   end
+
+   # Use a quote for quote-escaping as CSV errors on the \" with "Missing or stray quote"
+   def clean_csv_mapping_file(file)
+       data = ''
+       File.foreach(file) do |line|
+         data += line.gsub('\"', '""')
+       end
+       data
+   end
+
    def find_theme(theme)
        unless theme
            puts "Usage: Specify an Alaveteli-theme with THEME=[theme directory name]"
-           exit(0)
+           exit(1)
        end
        theme
    end
 
+   def find_mapping_file(file)
+       unless file
+           puts "Usage: Specify a csv file mapping old to new strings with MAPPING_FILE=[file name]"
+           exit(1)
+       end
+       unless File.exists?(file)
+           puts "Error: MAPPING_FILE #{file} not found"
+           exit(1)
+       end
+       file
+   end
+
    def theme_files_to_translate(theme)
        Dir.glob("{lib/themes/#{theme}/lib}/**/*.{rb,erb}")
    end