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# Copyright 2018 The Chromium Authors
# 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 ReadAarSourceInfo(info_path):
"""Returns the source= path from an .aar's source.info file."""
# The .info looks like: "source=path/to/.aar\n".
with open(info_path, encoding='utf-8') as f:
return f.read().rstrip().split('=', 1)[1]
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 = {}
if os.path.exists(info_path):
with open(info_path, 'r', encoding='utf-8') 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.items()):
if source_file_map and path in source_file_map:
path = source_file_map[path]
assert not path.startswith('/tmp'), (
f'Java file path should not be in temp dir: {path}')
output_obj.write(f'{fully_qualified_name},{path}\n')
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