Move language pak files to assets.

build/android/gyp/locale_pak_assets.py

Index: build/android/gyp/locale_pak_assets.py
diff --git a/build/android/gyp/locale_pak_assets.py b/build/android/gyp/locale_pak_assets.py
new file mode 100755
index 0000000000000000000000000000000000000000..b7e7ea269997a0c3b27bb060d623a1126c2e1955
--- /dev/null
+++ b/build/android/gyp/locale_pak_assets.py
@@ -0,0 +1,104 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+"""Creates a srcjar for locale pak file paths.
+
+Creates a srcjar with a class containing an array of locale pak files so that
+these assets can be enumerated and extracted as necessary. This is much
+more efficient than using AssetManager.list().
+
+The generated class implements:
+  //base/android/java/src/org/chromium/base/LocalePakFiles.java
+
+Providing access to pak file paths via:
+  public static String[] getFiles()
+"""
+
+import argparse
+import collections
+import os
+import string
+import sys
+import zipfile
+
+sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir))
+from pylib.constants import host_paths
+from util import build_utils
+
+_CLASSNAME = 'LocalePakFiles'
+_PACKAGE = 'org.chromium.ui'
+_THIS_FILE = os.path.abspath(__file__)
+
+
+def _CreateLocalePakFilesJava(pakfiles, package, classname, target):
+  """Generate the java file contents for the locale pak file class."""
+  file_tmpl = string.Template("""
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file is generated by:
+//     ${THIS_FILE}
+// From target:
+//     ${TARGET}
+
+package ${PACKAGE};
+
+import org.chromium.base.annotations.SuppressFBWarnings;
+
+public class LocalePakFiles {
+    private static String[] pakFiles = {${PAKFILES}};
+
+    @SuppressFBWarnings("MS_EXPOSE_REP")
+    public static String[] getFiles() {
+        return pakFiles;
+    }
+}
+""")
+
+  values = {
+    'TARGET': target,
+    'PACKAGE': package,
+    'CLASSNAME': classname,
+    'THIS_FILE': os.path.relpath(_THIS_FILE, host_paths.DIR_SOURCE_ROOT),
+    'PAKFILES': ', '.join('"%s"' % p for p in pakfiles),
+  }
+
+  return file_tmpl.substitute(values)
+
+
+def _WriteJarOutput(output_path, in_zip_path, data):
+  """Write file data to a srcjar."""
+  path = os.path.dirname(output_path)
+  if path and not os.path.exists(path):
+    os.makedirs(path)
+  with zipfile.ZipFile(output_path, 'w') as srcjar:
+    build_utils.AddToZipHermetic(srcjar, in_zip_path, data=data)
+
+
+def main():
+  parser = argparse.ArgumentParser()
+  build_utils.AddDepfileOption(parser)
+  parser.add_argument('--locale-paks', required=True,
+      help='List of pak file paths to be added to srcjar')
+  parser.add_argument('--srcjar', required=True, help='Path to output srcjar')
+  parser.add_argument('--target', required=True, help='Target invoking script')
+
+  args = parser.parse_args()
+
+  sources = build_utils.ParseGnList(args.locale_paks)
+
+  if args.depfile:
+    build_utils.WriteDepfile(args.depfile, args.srcjar)
+
+  pakfiles = [os.path.basename(s) for s in sources]
+  srcjar_contents = _CreateLocalePakFilesJava(
+      pakfiles, _PACKAGE, _CLASSNAME, args.target)
+  in_zip_path = os.path.join(_PACKAGE.replace('.', '/'), _CLASSNAME + '.java')
+  _WriteJarOutput(args.srcjar, in_zip_path, srcjar_contents)
+
+
+if __name__ == '__main__':
+  sys.exit(main())