Issue 1166 - Import strings from ABP for Firefox

import_locales.py

Index: import_locales.py
===================================================================
new file mode 100755
--- /dev/null
+++ b/import_locales.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+
+import codecs
+from ConfigParser import SafeConfigParser
+import os
+import re
+
+from buildtools import localeTools
+
+ie_locale_base_path = "locales"
+gecko_locale_base_path = "libadblockplus/adblockplus/chrome/locale"
+
+gecko_locale_mapping = dict(zip(localeTools.langMappingGecko.values(),
+                                localeTools.langMappingGecko.keys()))
+
+# We should be using en-US instead of en in IE, see
+# https://issues.adblockplus.org/ticket/1177
+gecko_locale_mapping["en"] = "en-US"
+
+strings_to_import = {
+  "firstRun.properties/firstRun_acceptableAdsHeadline": "first-run/first-run-aa-title",
+  "firstRun.properties/firstRun_acceptableAdsExplanation": "first-run/first-run-aa-text",
+  "filters.dtd/acceptableAds2.label": "settings/settings-acceptable-ads"
+}
+
+def read_gecko_locale_strings(locale):
+  locale_strings = {}
+  locale_files = set([key.split("/")[0] for key in strings_to_import.keys()])
+  for locale_file in locale_files:
+    locale_file_path = os.path.join(gecko_locale_base_path, locale, locale_file)
+    if os.path.exists(locale_file_path):
+      locale_strings[locale_file] = localeTools.readFile(locale_file_path)
+    else:
+      locale_strings[locale_file] = {}
+  return locale_strings
+
+# This is to keep the locale file format largely intact -
+# SafeConfigParser.write() puts spaces around equal signs.
+def write_ini(config, file):
+  for index, section in enumerate(config.sections()):
+    if index > 0:
+      file.write("\n")
+    file.write("[%s]\n" % section)
+    items = config.items(section)
+    for key, value in items:
+      file.write("%s=%s\n" % (key, re.sub(r"\s+", " ", value, flags=re.S)))
+
+def import_locale(ie_locale):
+  gecko_locale = gecko_locale_mapping.get(ie_locale, ie_locale)
+  gecko_locale_strings = read_gecko_locale_strings(gecko_locale)
+
+  ie_locale_path = "locales/%s.ini" % ie_locale
+  config = SafeConfigParser()
+  config.optionxform = str
+  with codecs.open(ie_locale_path, "r", "utf-8") as ie_locale_file:
+    config.readfp(ie_locale_file)
+
+  for source, target in strings_to_import.iteritems():
+    source_section, source_key = source.split("/")
+    target_section, target_key = target.split("/")
+    if source_key in gecko_locale_strings[source_section]:
+      value = gecko_locale_strings[source_section][source_key]
+      value = re.sub(r"\s*\(&.\)$", "", value).replace("&", "")
+      config.set(target_section, target_key, value)
+
+  with codecs.open(ie_locale_path, "w", "utf-8") as ie_locale_file:
+    write_ini(config, ie_locale_file)
+
+def import_locales():
+  ie_locales = [os.path.splitext(file)[0]
+                for file in os.listdir(ie_locale_base_path)
+                if os.path.isfile(os.path.join(ie_locale_base_path, file))]
+  for ie_locale in ie_locales:
+    import_locale(ie_locale)
+
+if __name__ == "__main__":
+  import_locales()