components/module_installer/android/module_desc_java.py

#!/usr/bin/env python
#
# Copyright 2019 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.
"""Writes Java module descriptor to srcjar file."""

import argparse
import os
import sys
import zipfile

sys.path.append(
    os.path.join(
        os.path.dirname(__file__), '..', '..', '..', 'build', 'android', 'gyp'))
from util import build_utils

_TEMPLATE = '''\
// This file is autogenerated by
//     components/module_installer/android/module_desc_java.py
// Please do not change its content.

package org.chromium.components.module_installer.builder;

import org.chromium.base.annotations.UsedByReflection;

@UsedByReflection("Module.java")
public class ModuleDescriptor_{MODULE} implements ModuleDescriptor {{
    private static final String[] LIBRARIES = {{{LIBRARIES}}};

    @Override
    public String[] getLibraries() {{
        return LIBRARIES;
    }}
}}
'''


def main():
  parser = argparse.ArgumentParser()
  parser.add_argument('--module', required=True, help='The module name.')
  parser.add_argument(
      '--libraries', required=True, help='GN list of native library paths.')
  parser.add_argument(
      '--output', required=True, help='Path to the generated srcjar file.')
  options = parser.parse_args(build_utils.ExpandFileArgs(sys.argv[1:]))
  options.libraries = build_utils.ParseGnList(options.libraries)

  libraries = []
  for path in options.libraries:
    path = path.strip()
    filename = os.path.split(path)[1]
    assert filename.startswith('lib')
    assert filename.endswith('.so')
    # Remove lib prefix and .so suffix.
    libraries += [filename[3:-3]]

  format_dict = {
      'MODULE': options.module,
      'LIBRARIES': ','.join(['"%s"' % l for l in libraries]),
  }
  with build_utils.AtomicOutput(options.output) as f:
    with zipfile.ZipFile(f.name, 'w') as srcjar_file:
      build_utils.AddToZipHermetic(
          srcjar_file,
          'org/chromium/components/module_installer/builder/'
          'ModuleDescriptor_%s.java' % options.module,
          data=_TEMPLATE.format(**format_dict))


if __name__ == '__main__':
  sys.exit(main())