def main()

in script/checkout.py [0:0]

• 27 lines of code
• 4 McCabe index (conditional complexity)

def main():
  os.chdir(os.path.join(os.path.dirname(__file__), os.pardir))

  parser = common.create_parser(True)
  args = parser.parse_args()

  # Clone depot_tools
  if not os.path.exists("depot_tools"):
    subprocess.check_call(["git", "clone", "--config", "core.autocrlf=input", "https://chromium.googlesource.com/chromium/tools/depot_tools.git", "depot_tools"])

  match = re.match('(m\\d+)(?:-([0-9a-f]+)(?:-([1-9][0-9]*))?)?', args.version)
  if not match:
    raise Exception('Expected --version "m<ver>-<sha>", got "' + args.version + '"')

  commit = match.group(2)
  checkout_skia(commit)

  # git deps
  print("> Running tools/git-sync-deps")
  # Trying to avoid 429 HTTP Error from Google repos
  git_sync_with_retries()

  # fetch ninja
  print("> Fetching ninja")
  subprocess.check_call(["python3", "bin/fetch-ninja"])

  # Patch an issue in Windows toolchain:
  # Enable delayed environment variable expansion for CMD to make GitHub Actions happy
  # https://issues.skia.org/issues/393402169
  with open("gn/toolchain/BUILD.gn", "r") as toolchain_file:
    toolchain_file_contents = toolchain_file.read()

  toolchain_file_contents = toolchain_file_contents.replace(
    'shell = "cmd.exe /c',
    'shell = "cmd.exe /v:on /c',
  ).replace(
    r'env_setup = "$shell set \"PATH=%PATH%',
    r'env_setup = "$shell set \"PATH=!PATH!',
  )

  with open("gn/toolchain/BUILD.gn", "w") as toolchain_file:
    toolchain_file.write(toolchain_file_contents)

  return 0