def main()

in build/linux/install-chromeos-fonts.py [0:0]

• 40 lines of code
• 10 McCabe index (conditional complexity)

def main(args):
  if not sys.platform.startswith('linux'):
    print("Error: %s must be run on Linux." % __file__)
    return 1

  if os.getuid() != 0:
    print("Error: %s must be run as root." % __file__)
    return 1

  if not os.path.isdir(FONTS_DIR):
    print("Error: Destination directory does not exist: %s" % FONTS_DIR)
    return 1

  dest_dir = os.path.join(FONTS_DIR, 'chromeos')

  stamp = os.path.join(dest_dir, ".stamp02")
  if os.path.exists(stamp):
    with open(stamp) as s:
      if s.read() == URL:
        print("Chrome OS fonts already up-to-date in %s." % dest_dir)
        return 0

  if os.path.isdir(dest_dir):
    shutil.rmtree(dest_dir)
  os.mkdir(dest_dir)
  os.chmod(dest_dir, 0o755)

  print("Installing Chrome OS fonts to %s." % dest_dir)
  tarball = os.path.join(dest_dir, os.path.basename(URL))
  subprocess.check_call(['curl', '-L', URL, '-o', tarball])
  subprocess.check_call(['tar', '--no-same-owner', '--no-same-permissions',
                         '-xf', tarball, '-C', dest_dir])
  os.remove(tarball)

  readme = os.path.join(dest_dir, "README")
  with open(readme, 'w') as s:
    s.write("This directory and its contents are auto-generated.\n")
    s.write("It may be deleted and recreated. Do not modify.\n")
    s.write("Script: %s\n" % __file__)

  with open(stamp, 'w') as s:
    s.write(URL)

  for base, dirs, files in os.walk(dest_dir):
    for dir in dirs:
      os.chmod(os.path.join(base, dir), 0o755)
    for file in files:
      os.chmod(os.path.join(base, file), 0o644)

  return 0