1 files changed, 166 insertions, 0 deletions
diff --git a/deps/v8/build/android/gyp/aar.py b/deps/v8/build/android/gyp/aar.py
new file mode 100755
index 0000000000..d0f357db33
--- /dev/null
+++ b/deps/v8/build/android/gyp/aar.py
@@ -0,0 +1,166 @@
+#!/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 posixpath
+import re
+import shutil
+import sys
+from xml.etree import ElementTree
+import zipfile
+
+from util import build_utils
+from util import md5_check
+
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__),
+                                             os.pardir, os.pardir)))
+import gn_helpers
+
+
+def _IsManifestEmpty(manifest_str):
+  """Returns whether the given manifest has merge-worthy elements.
+
+  E.g.: <activity>, <service>, etc.
+  """
+  doc = ElementTree.fromstring(manifest_str)
+  for node in doc:
+    if node.tag == 'application':
+      if len(node):
+        return False
+    elif node.tag != 'uses-sdk':
+      return False
+
+  return True
+
+
+def _CreateInfo(aar_file):
+  data = {}
+  data['aidl'] = []
+  data['assets'] = []
+  data['resources'] = []
+  data['subjars'] = []
+  data['subjar_tuples'] = []
+  data['has_classes_jar'] = False
+  data['has_proguard_flags'] = False
+  data['has_native_libraries'] = False
+  data['has_r_text_file'] = False
+  with zipfile.ZipFile(aar_file) as z:
+    data['is_manifest_empty'] = (
+        _IsManifestEmpty(z.read('AndroidManifest.xml')))
+
+    for name in z.namelist():
+      if name.endswith('/'):
+        continue
+      if name.startswith('aidl/'):
+        data['aidl'].append(name)
+      elif name.startswith('res/'):
+        data['resources'].append(name)
+      elif name.startswith('libs/') and name.endswith('.jar'):
+        label = posixpath.basename(name)[:-4]
+        label = re.sub(r'[^a-zA-Z0-9._]', '_', label)
+        data['subjars'].append(name)
+        data['subjar_tuples'].append([label, name])
+      elif name.startswith('assets/'):
+        data['assets'].append(name)
+      elif name.startswith('jni/'):
+        data['has_native_libraries'] = True
+        if 'native_libraries' in data:
+          data['native_libraries'].append(name)
+        else:
+          data['native_libraries'] = [name]
+      elif name == 'classes.jar':
+        data['has_classes_jar'] = True
+      elif name == 'proguard.txt':
+        data['has_proguard_flags'] = True
+      elif name == 'R.txt':
+        # Some AARs, e.g. gvr_controller_java, have empty R.txt. Such AARs
+        # have no resources as well. We treat empty R.txt as having no R.txt.
+        data['has_r_text_file'] = (z.read('R.txt').strip() != '')
+
+  return """\
+# Generated by //build/android/gyp/aar.py
+# To regenerate, use "update_android_aar_prebuilts = true" and run "gn gen".
+
+""" + gn_helpers.ToGNString(data)
+
+
+def _AddCommonArgs(parser):
+  parser.add_argument('aar_file',
+                      help='Path to the AAR file.',
+                      type=os.path.normpath)
+
+
+def main():
+  parser = argparse.ArgumentParser(description=__doc__)
+  command_parsers = parser.add_subparsers(dest='command')
+  subp = command_parsers.add_parser(
+      'list', help='Output a GN scope describing the contents of the .aar.')
+  _AddCommonArgs(subp)
+  subp.add_argument('--output',
+                    help='Output file.',
+                    default='-')
+
+  subp = command_parsers.add_parser('extract', help='Extracts the .aar')
+  _AddCommonArgs(subp)
+  subp.add_argument('--output-dir',
+                    help='Output directory for the extracted files.',
+                    required=True,
+                    type=os.path.normpath)
+  subp.add_argument('--assert-info-file',
+                    help='Path to .info file. Asserts that it matches what '
+                         '"list" would output.',
+                    type=argparse.FileType('r'))
+
+  args = parser.parse_args()
+
+  if args.command == 'extract':
+    if args.assert_info_file:
+      expected = _CreateInfo(args.aar_file)
+      actual = args.assert_info_file.read()
+      if actual != expected:
+        raise Exception('android_aar_prebuilt() cached .info file is '
+                        'out-of-date. Run gn gen with '
+                        'update_android_aar_prebuilts=true to update it.')
+
+    def clobber():
+      # Clear previously extracted versions of the AAR if it is obsolete.
+      shutil.rmtree(args.output_dir, ignore_errors=True)
+      build_utils.ExtractAll(args.aar_file, path=args.output_dir)
+
+    with zipfile.ZipFile(args.aar_file) as zf:
+      md5_check.CallAndRecordIfStale(
+          clobber, input_paths=[args.aar_file],
+          output_paths=[
+              os.path.join(args.output_dir, n) for n in zf.namelist()])
+
+  elif args.command == 'list':
+    aar_info = _CreateInfo(args.aar_file)
+    aar_output_present = args.output != '-' and os.path.isfile(args.output)
+    if aar_output_present:
+      # Some .info files are read-only, for examples the cipd-controlled ones
+      # under third_party/android_deps/repositoty. To deal with these, first
+      # that its content is correct, and if it is, exit without touching
+      # the file system.
+      file_info = open(args.output, 'r').read()
+      if file_info == aar_info:
+        return
+
+    # Try to write the file. This may fail for read-only ones that were
+    # not updated.
+    try:
+      with open(args.output, 'w') as f:
+        f.write(aar_info)
+    except IOError as e:
+      if not aar_output_present:
+        raise e
+      raise Exception('Could not update output file: %s\n%s\n' %
+                      (args.output, e))
+
+if __name__ == '__main__':
+  sys.exit(main())