Add rake tasks to add and remove keys in the locales. #6548

Contributed by Felix Schäfer

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4254 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/tasks/locales.rake

@@ -28,4 +28,62 @@ namespace :locales do
       lang.close
     end
   end
+
+  desc <<-END_DESC
+Removes a translation string from all locale file (only works for top-level childless non-multiline keys, probably doesn\'t work on windows).
+
+Options:
+  key=key_1,key_2    Comma-separated list of keys to delete
+  skip=en,de         Comma-separated list of locale files to ignore (filename without extension)
+END_DESC
+
+  task :remove_key do
+    dir = ENV['DIR'] || './config/locales'
+    files = Dir.glob(File.join(dir,'*.yml'))
+    skips = ENV['skip'] ? Regexp.union(ENV['skip'].split(',')) : nil
+    deletes = ENV['key'] ? Regexp.union(ENV['key'].split(',')) : nil
+    # Ignore multiline keys (begin with | or >) and keys with children (nothing meaningful after :)
+    delete_regex = /\A  #{deletes}: +[^\|>\s#].*\z/
+    
+    files.each do |path|
+      # Skip certain locales
+      (puts "Skipping #{path}"; next) if File.basename(path, ".yml") =~ skips
+      puts "Deleting selected keys from #{path}"
+      orig_content = File.open(path, 'r') {|file| file.read}
+      File.open(path, 'w') {|file| orig_content.each_line {|line| file.puts line unless line.chomp =~ delete_regex}}
+    end
+  end
+  
+  desc <<-END_DESC
+Adds a new top-level translation string to all locale file (only works for childless keys, probably doesn\'t work on windows, doesn't check for duplicates).
+
+Options:
+  key="some_key=foo"
+  key1="another_key=bar"
+  key_fb="foo=bar"         Keys to add in the form key=value, every option of the form key[,\\d,_*] will be recognised
+  skip=en,de               Comma-separated list of locale files to ignore (filename without extension)
+END_DESC
+
+  task :add_key do
+    dir = ENV['DIR'] || './config/locales'
+    files = Dir.glob(File.join(dir,'*.yml'))
+    skips = ENV['skip'] ? Regexp.union(ENV['skip'].split(',')) : nil
+    keys_regex = /\Akey(\d+|_.+)?\z/
+    adds = ENV.reject {|k,v| !(k =~ keys_regex)}.values.collect {|v| Array.new v.split("=",2)}
+    key_list = adds.collect {|v| v[0]}.join(", ")
+
+    files.each do |path|
+      # Skip certain locales
+      (puts "Skipping #{path}"; next) if File.basename(path, ".yml") =~ skips
+      # TODO: Check for dupliate/existing keys
+      puts "Adding #{key_list} to #{path}"
+      File.open(path, 'a') do |file|
+        adds.each do |kv|
+          Hash[*kv].to_yaml.each_line do |line|
+            file.puts "  #{line}" unless (line =~ /^---/ || line.empty?)
+          end
+        end
+      end
+    end
+  end
 end