1 files changed, 51 insertions, 0 deletions
diff --git a/deps/v8/build/android/gyp/util/jar_info_utils.py b/deps/v8/build/android/gyp/util/jar_info_utils.py
new file mode 100644
index 0000000000..677e4e4261
--- /dev/null
+++ b/deps/v8/build/android/gyp/util/jar_info_utils.py
@@ -0,0 +1,51 @@
+# Copyright 2018 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.
+
+import os
+
+# Utilities to read and write .jar.info files.
+#
+# A .jar.info file contains a simple mapping from fully-qualified Java class
+# names to the source file that actually defines it.
+#
+# For APKs, the .jar.info maps the class names to the .jar file that which
+# contains its .class definition instead.
+
+
+def ParseJarInfoFile(info_path):
+  """Parse a given .jar.info file as a dictionary.
+
+  Args:
+    info_path: input .jar.info file path.
+  Returns:
+    A new dictionary mapping fully-qualified Java class names to file paths.
+  """
+  info_data = dict()
+  if os.path.exists(info_path):
+    with open(info_path, 'r') as info_file:
+      for line in info_file:
+        line = line.strip()
+        if line:
+          fully_qualified_name, path = line.split(',', 1)
+          info_data[fully_qualified_name] = path
+  return info_data
+
+
+def WriteJarInfoFile(output_obj, info_data, source_file_map=None):
+  """Generate a .jar.info file from a given dictionary.
+
+  Args:
+    output_obj: output file object.
+    info_data: a mapping of fully qualified Java class names to filepaths.
+    source_file_map: an optional mapping from java source file paths to the
+      corresponding source .srcjar. This is because info_data may contain the
+      path of Java source files that where extracted from an .srcjar into a
+      temporary location.
+  """
+  for fully_qualified_name, path in sorted(info_data.iteritems()):
+    if source_file_map and path in source_file_map:
+      path = source_file_map[path]
+      assert not path.startswith('/tmp'), (
+          'Java file path should not be in temp dir: {}'.format(path))
+    output_obj.write('{},{}\n'.format(fully_qualified_name, path))