tools/create_r8lib.py

#!/usr/bin/env python3
# Copyright (c) 2021, the R8 project authors. Please see the AUTHORS file
# for details. All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.

import argparse
import subprocess
import sys

import jdk


def parse_options():
  parser = argparse.ArgumentParser(description='Tag R8 Versions')
  parser.add_argument(
      '--r8jar',
      required=True,
      help='The R8 jar to compile')
  parser.add_argument(
      '--output',
      required=True,
      help='The output path for the r8lib')
  parser.add_argument(
      '--pg-conf',
      action='append',
      help='Keep configuration')
  parser.add_argument(
      '--lib',
      action='append',
      help='Additional libraries (JDK 1.8 rt.jar already included)')
  return parser.parse_args()

def main():
  args = parse_options()
  # TODO(b/139725780): See if we can remove or lower the heap size (-Xmx8g).
  cmd = [jdk.GetJavaExecutable(), '-Xmx8g', '-ea']
  cmd.extend(['-cp', 'build/libs/r8_with_deps.jar', 'com.android.tools.r8.R8'])
  cmd.append(args.r8jar)
  cmd.append('--classfile')
  cmd.extend(['--output', args.output])
  cmd.extend(['--pg-map-output', args.output + '.map'])
  cmd.extend(['--lib', 'third_party/openjdk/openjdk-rt-1.8/rt.jar'])
  if args.pg_conf:
    for pgconf in args.pg_conf:
      cmd.extend(['--pg-conf', pgconf])
  if args.lib:
    for lib in args.lib:
      cmd.extend(['--lib', lib])
  print(' '.join(cmd))
  subprocess.check_call(cmd)

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