Bug 1117357 - Fix |mach bootstrap| for mobile/android on Mac OS X. r=gps

This does two things.  First, it aligns the brew formula name
(AndroidNdk) with the brew file name (android-ndk.rb).  Second, it
makes sure that we actually find the android-ndk.rb file.  I think
|mach bootstrap| always worked, due to a felicity where the working
directory always contained android-ndk.rb; but |python bootstrap.py|
failed because android-ndk.rb was downloaded to a temporary location
that was not included in the |brew install| command.

--HG--
rename : python/mozboot/mozboot/android-ndk-r8e.rb => python/mozboot/mozboot/android-ndk.rb
extra : rebase_source : 44f164d3d5916bc2faf4c64285e232047daea35e

python/mozboot/bin/bootstrap.py

@@ -32,7 +32,7 @@ REPOSITORY_PATH_PREFIX = 'python/mozboot'
 
 REPOSITORY_PATHS = [
     'mozboot/__init__.py',
-    'mozboot/android-ndk-r8e.rb',
+    'mozboot/android-ndk.rb',
     'mozboot/android.py',
     'mozboot/base.py',
     'mozboot/bootstrap.py',

python/mozboot/mozboot/android-ndk.rb

@@ -1,5 +1,9 @@
 require "formula"
 
+# This is an antiquated version pinned to NDK revision r8e.  That's
+# the revision Mozilla's automation currently uses.  We could push
+# this to https://github.com/Homebrew/homebrew-versions if there's a
+# problem shipping it locally.
 class AndroidNdk < Formula
   homepage "http://developer.android.com/sdk/ndk/index.html"
 

python/mozboot/mozboot/osx.py

@@ -324,11 +324,16 @@ class OSXBootstrapper(BaseBootstrapper):
     def ensure_homebrew_mobile_android_packages(self):
         import android
 
+        # If we're run from a downloaded bootstrap.py, then android-ndk.rb is
+        # fetched into a temporary directory.  This finds that directory.
+        import inspect
+        path_to_android = os.path.abspath(os.path.dirname(inspect.getfile(android)))
+
         # We don't need wget because we install the Android SDK and NDK from
         # packages.  If we used the android.py module, we'd need wget.
         packages = [
             ('android-sdk', 'android-sdk'),
-            ('android-ndk', 'android-ndk-r8e.rb'), # This is a locally provided brew formula!
+            ('android-ndk', os.path.join(path_to_android, 'android-ndk.rb')), # This is a locally provided brew formula!
             ('ant', 'ant'),
             ('brew-cask', 'caskroom/cask/brew-cask'), # For installing Java later.
         ]