cleanup headers of files pulled from transifex.

conf/locale/config

 {
- "locales" : ["en"],
+ "locales" : ["en", "es"],
  "dummy-locale" : "fr"
 }

i18n/make_dummy.py

@@ -2,6 +2,12 @@
 
 # Generate test translation files from human-readable po files.
 # 
+# Dummy language is specified in configuration file (see config.py)
+# two letter language codes reference:
+# see http://www.loc.gov/standards/iso639-2/php/code_list.php
+#
+# Django will not localize in languages that django itself has not been
+# localized for. So we are using a well-known language (default='fr').
 #
 # po files can be generated with this:
 # django-admin.py makemessages --all --extension html -l en
@@ -18,7 +24,8 @@
 import os, sys
 import polib
 from dummy import Dummy
-from execute import get_logger, create_dir_if_necessary
+from config import CONFIGURATION
+from execute import create_dir_if_necessary
 
 def main(file, locale):
     """
@@ -47,21 +54,13 @@ def new_filename(original_filename, new_locale):
                                         msgs_dir,
                                         orig_file))
 
-
-# Dummy language 
-# two letter language codes reference:
-# see http://www.loc.gov/standards/iso639-2/php/code_list.php
-#
-# Django will not localize in languages that django itself has not been
-# localized for. So we are using a well-known language: 'fr'.
-
-DEFAULT_LOCALE = 'fr'
-
 if __name__ == '__main__':
+    # required arg: file
     if len(sys.argv)<2:
         raise Exception("missing file argument")
+    # optional arg: locale
     if len(sys.argv)<3:
-        locale = DEFAULT_LOCALE
+        locale = CONFIGURATION.get_dummy_locale()
     else:
         locale = sys.argv[2]
     main(sys.argv[1], locale)

i18n/transifex.py

 #!/usr/bin/python
 
-import sys
+import os, sys
+from polib import pofile
+from config import CONFIGURATION
+from extract import SOURCE_WARN
 from execute import execute
 
+TRANSIFEX_HEADER = 'Translations in this file have been downloaded from %s'
+TRANSIFEX_URL = 'https://www.transifex.com/projects/p/edx-studio/'
+
 def push():
     execute('tx push -s')
 
 def pull():
     execute('tx pull')
+    clean_translated_locales()
+
+
+def clean_translated_locales():
+    """
+    Strips out the warning from all translated po files
+    about being an English source file.
+    """
+    for locale in CONFIGURATION.get_locales():
+        if locale != CONFIGURATION.get_source_locale():
+            clean_locale(locale)
+        
+def clean_locale(locale):
+    """
+    Strips out the warning from all of a locale's translated po files
+    about being an English source file.
+    Iterates over machine-generated files.
+    """
+    dirname = CONFIGURATION.get_messages_dir(locale)
+    for filename in ('django-partial.po', 'djangojs.po', 'mako.po'):
+        clean_file(os.path.join(dirname, filename))
+
+def clean_file(file):
+    """
+    Strips out the warning from a translated po file about being an English source file.
+    Replaces warning with a note about coming from Transifex.
+    """
+    po = pofile(file)
+    if po.header.find(SOURCE_WARN) != -1:
+        new_header = get_new_header(po)
+        new = po.header.replace(SOURCE_WARN, new_header)
+        po.header = new
+        po.save()
 
+def get_new_header(po):
+    team = po.metadata.get('Language-Team', None)
+    if not team:
+        return TRANSIFEX_HEADER % TRANSIFEX_URL
+    else:
+        return TRANSIFEX_HEADER % team
 
 if __name__ == '__main__':
     if len(sys.argv)<2: