Add AAR support to Chrome and convert support libraries to using AARs

build/android/gyp/aar.py

Index: build/android/gyp/aar.py
diff --git a/build/android/gyp/aar.py b/build/android/gyp/aar.py
new file mode 100755
index 0000000000000000000000000000000000000000..4a5f846b1b0c6b703caa57b8065c30907fc2a4b9
--- /dev/null
+++ b/build/android/gyp/aar.py
@@ -0,0 +1,63 @@
+#!/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.
+
+"""Processes an Android AAR file."""
+
+import argparse
+import os
+import shutil
+import sys
+import zipfile
+
+from util import build_utils
+
+sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir))

[jbudorick, 2016/07/19 13:14:06]

nit: sys.path.append(os.path.abspath(...))

[Ian Wen, 2016/07/19 18:36:48]

Done.

+import gn_helpers
+
+
+def main():
+  parser = argparse.ArgumentParser(description=__doc__)
+  parser.add_argument('--input-file',
+                      help='Path to the AAR file.',
+                      required=True,
+                      metavar='FILE')
+  parser.add_argument('--extract',
+                      help='Extract the files to output directory.',
+                      action='store_true')
+  parser.add_argument('--list',
+                      help='List all the resource and jar files.',
+                      action='store_true')
+  parser.add_argument('--output-dir',
+                      help='Output directory for the extracted files. Must '
+                      'be set if --extract is set.',
+                      metavar='DIR')
+
+  args = parser.parse_args()
+  assert args.extract is not None or args.list is not None

[jbudorick, 2016/07/19 13:14:06]

nit: this should be calling parser.error if neither --extract nor --list is
specified, and it should better explain what a user should be doing.

[Ian Wen, 2016/07/19 18:36:48]

Done.

+
+  aar_file = args.input_file  # e.g. library.aar

[jbudorick, 2016/07/19 13:14:06]

nit: move these examples up into the help text.

[Ian Wen, 2016/07/19 18:36:48]

These comments are very basic. I will simply remove them. Done.

+  output_dir = args.output_dir  # e.g. path/to/output
+
+  if args.extract:
+    # Clear previously extracted versions of the AAR.
+    shutil.rmtree(output_dir, True)
+    build_utils.ExtractAll(aar_file, path=output_dir)
+
+  if args.list:
+    data = {}
+    data['resources'] = []
+    data['jars'] = []
+    with zipfile.ZipFile(aar_file) as z:
+      for name in z.namelist():
+        if name.startswith('res/') and not name.endswith('/'):
+          data['resources'].append(name)
+        if name.endswith('.jar'):
+          data['jars'].append(name)
+    print gn_helpers.ToGNString(data)
+
+
+if __name__ == '__main__':
+  sys.exit(main())