From 9b62dc6f83a9fa3a265048c51cde378f6f20dd12 Mon Sep 17 00:00:00 2001
From: Saivann <saivann@gmail.com>
Date: Sat, 8 Mar 2014 22:13:45 -0500
Subject: [PATCH] Add script used to update translation templates

---
 README.md            |  4 ++--
 _contrib/updatetx.rb | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 2 deletions(-)
 create mode 100755 _contrib/updatetx.rb

diff --git a/README.md b/README.md
index 4ba6869f..88a97597 100644
--- a/README.md
+++ b/README.md
@@ -28,9 +28,9 @@ Installing dependencies on older Ubuntu and Debian distributions
 
 ### Import translations
 
-**Update translations**: You can overwrite each language files in _translations by their updated version from Transifex. You should make sure that each .html files (in _layouts, _templates) don't serve outdated content for those languages. You should also make sure that no url has been changed by translators. If one page has been replaced or moved, a redirection can be added in _config.yml.
+**Update translations**: You can update the relevant language file in \_translations/ and run ./\_contrib/updatetx.rb to update layouts and templates for this language. You should also make sure that no url has been changed by translators. If one page has been replaced or moved, a redirection can be added in \_config.yml.
 
-**Add a new language**: You can put the language file from Transifex in _translations and add the language in _config.yml in the right display order for the language bar. Make sure to review all pages and check all links.
+**Add a new language**: You can put the language file from Transifex in \_translations and add the language in \_config.yml in the right display order for the language bar. Make sure to review all pages and check all links.
 
 ### Update english strings
 
diff --git a/_contrib/updatetx.rb b/_contrib/updatetx.rb
new file mode 100755
index 00000000..8f713996
--- /dev/null
+++ b/_contrib/updatetx.rb
@@ -0,0 +1,39 @@
+#!/usr/bin/env ruby
+
+#Drop outdated fallback HTML code in all layouts for specified language.
+#Example: ./_contrib/updatetx.rb
+
+def prompt(*args)
+    print(*args)
+    gets
+end
+
+lang = prompt "Language code: "
+lang = lang.gsub(/[^a-z]/,'')
+
+if !File.exist?('_translations/' + lang + '.yml')
+  print "Wrong language code. \n"
+  exit
+end
+
+dirs = [ '_templates', '_layouts' ]
+
+dirs.each do |dir|
+  Dir.foreach(dir) do |file|
+    next if file == '.' or file == '..'
+    contents = File.read(dir + '/' + file)
+    # Drop HTML code applied to current language only ( until next {% when / else / endcase %} statement )
+    contents.gsub!(Regexp.new("{% when '" + lang + "' %}((?!{% endcase %})(?!{% else %}).)*?{% when", Regexp::MULTILINE),'{% when')
+    contents.gsub!(Regexp.new("{% when '" + lang + "' %}((?!{% endcase %}).)*?{% else %}", Regexp::MULTILINE),'{% else %}')
+    contents.gsub!(Regexp.new("{% when '" + lang + "' %}.*?{% endcase %}", Regexp::MULTILINE),'{% endcase %}')
+    # Drop complete {% case / endcase %} statements when not used by any language anymore
+    contents.gsub!(Regexp.new("{% case page.lang %}(((?!{% when ).)*?){% else %}(.*?){% endcase %}", Regexp::MULTILINE),'\1 \3')
+    contents.gsub!(Regexp.new("{% case page.lang %}(((?!{% when ).)*?){% endcase %}", Regexp::MULTILINE),'\1')
+    # Drop language in statements applied to many languages ( e.g. {% when 'ar' or 'fr' .. %} )
+    contents.gsub!(Regexp.new("{% when '" + lang + "' or (.*?) %}"),'{% when \1 %}')
+    contents.gsub!(Regexp.new("{% when (.*?) or '" + lang + "' (.*?) %}"),'{% when \1 \2 %}')
+    File.open(dir + '/' + file, 'w') do |file|
+      file.write(contents)
+    end
+  end
+end