tools/dart_for_gn.py

#!/usr/bin/env python
# Copyright 2016 The Dart project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Usage: dart_for_gn.py path_to_dart_binary [arguments]
#
# We have gn set up so that actions can only run python scripts.
# We use this wrapper script when we need an action to run the Dart VM
# The first command line argument is mandatory and should be the absolute path
# to the Dart VM binary.

import subprocess
import sys

def run_command(command):
  try:
    subprocess.check_output(command, stderr=subprocess.STDOUT)
    return 0
  except subprocess.CalledProcessError as e:
    return ("Command failed: " + ' '.join(command) + "\n" +
            "output: " + e.output)

def main(argv):
  if len(argv) < 2:
    print "Requires path to Dart VM binary as first argument"
    return -1
  result = run_command(argv[1:])
  if result != 0:
    print result
    return -1
  return 0

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