# Copyright (c) 2011, the Dart 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.
#
# This python script creates a version string in a C++ file.

import sys
import time
from optparse import OptionParser
import utils

def debugLog(message):
  print >> sys.stderr, message
  sys.stderr.flush()

def makeVersionString():
  version_string = utils.GetVersion()
  debugLog("Returning version string: %s " % version_string)
  return version_string


def makeFile(output_file, input_file):
  version_cc_text = open(input_file).read()
  version_string = makeVersionString()
  version_cc_text = version_cc_text.replace("{{VERSION_STR}}",
                                            version_string)
  version_time = time.ctime(time.time())
  version_cc_text = version_cc_text.replace("{{BUILD_TIME}}",
                                            version_time)
  open(output_file, 'w').write(version_cc_text)
  return True


def main(args):
  try:
    # Parse input.
    parser = OptionParser()
    parser.add_option("--output",
                      action="store", type="string",
                      help="output file name")
    parser.add_option("--input",
                      action="store", type="string",
                      help="input template file")

    (options, args) = parser.parse_args()
    if not options.output:
      sys.stderr.write('--output not specified\n')
      return -1
    if not len(options.input):
      sys.stderr.write('--input not specified\n')
      return -1

    files = []
    for arg in args:
      files.append(arg)

    if not makeFile(options.output, options.input):
      return -1

    return 0
  except Exception, inst:
    sys.stderr.write('make_version.py exception\n')
    sys.stderr.write(str(inst))
    sys.stderr.write('\n')
    return -1

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