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For now, this is just a collection of blog posts.


Clone the en-US repo:

   hg clone https://hg.mozilla.org/gaia-l10n/en-US

and your locale's repo (I use pl as an example):

   hg clone ssh://hg.mozilla.org/gaia-l10n/pl

Install compare-locales and use compare-dirs to diff your locale against en-US:

   compare-dirs en-US pl

Alternatively, you can go to Elmo and look for the stats for 'gaia' or 'gaia-community'

Testing using the Firefox OS Simulator addon

Install in your Firefox:


Testing using standalone nightly builds

These are the same bits as the Firefox OS Simulator, but are standalone and built every night.

Go to http://ftp.mozilla.org/pub/mozilla.org/b2g/nightly/latest-mozilla-b2g18/ to download a nightly desktop build. You should get one of the b2g-18.0.multi.*-localizer.* builds. Their built-in profile have the newest localization files.

Here's what each part of the filename means:

  • b2g-18.0 is the Gecko branch; we now moved away from central/aurora/beta and created a separate branch of Gecko just for B2G,
  • multi denotes a multilocale Gecko build; netError.dtd and appstring.properties will be localized; you can test this by opening the browser app in Gaia and trying to access a nonexisting page; the "Server not found" error page should be localized,
  • next up is the platform, pretty self-explanatory,
  • localizer denotes a multilocale Gaia build, i.e. a build which has all locales enabled in it; see languages-all.json for the list.

Testing using own Gaia profile

It's possible to test localizations using a desktop build of B2G. The trickiest part is adding your locale to the build, but you only have to do it once. All the work that follows happens in your locale's HG repository.

You'll need to have Python installed for this next step. OS X and most Linux distributions come with it by default. You can download the Windows installer at http://www.python.org/download/.

Download B2G Desktop

First, you'll need a desktop build of B2G. Download one from http://ftp.mozilla.org/pub/mozilla.org/b2g/nightly/latest-mozilla-b2g18/ and install or unzip the package.

Set up Gaia

Clone Gaia.

   git clone git://github.com/mozilla-b2g/gaia.git
   cd gaia

Check out the v1-train branch:

   git checkout -b v1-train origin/v1-train

Setup the l10n repo

In your `gaia` clone from the step above:

   cd locales
   hg clone ssh://hg.mozilla.org/gaia-l10n/pl/

(Replace pl with your locale.)

Enable your locale


Next, add you locale to locales/languages_all.json:

     "ar" : "العربية",
     "en-US" : "English (US)",
     "fr" : "Français",
     "pl" : "Polski",
     "zh-TW" : "正體中文"

Create a profile

Now create a profile with your locale enabled:

   make profile LOCALE_BASEDIR=locales/ LOCALES_FILE=locales/languages_all.json GAIA_DEFAULT_LOCALE=pl GAIA_KEYBOARD_LAYOUTS=en,pl

Run Gaia

   /path/to/b2g-bin -profile /path/to/gaia/profile

(On Mac OS X, the path to the b2g executable is /Applications/B2G.app/Contents/MacOS/b2g-bin. You'll also need to specify absolute path to the profile, without the trailing slash.)

Troubleshooting/Known Issues

  • You may need to restart your desktop build the first time you change the locale to yours.
  • When an app appears to not work with your locale:
    1. Make sure its locale/locales.ini lists your locale
    2. Close the desktop build and wait a minute. I'm serious. I think there's some caching issue with the debug server running on port 8080.
  • The "Language" panel in the Settings app might read "undefined" instead of showing your locale's name.
  • The names of the applications will be in English.
  • To localize dates (like the one on the lockscreen) localize shared/date/date.properties