| #!/usr/bin/env python |
| # Copyright 2019 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Chromium wrapper for pylint for passing args via stdin. |
| |
| This will be executed by vpython with the right pylint versions. |
| """ |
| |
| from __future__ import print_function |
| |
| import os |
| import sys |
| |
| HERE = os.path.dirname(os.path.abspath(__file__)) |
| PYLINT = os.path.join(HERE, 'pylint_main.py') |
| RC_FILE = os.path.join(HERE, 'pylintrc') |
| |
| ARGS_ON_STDIN = '--args-on-stdin' |
| |
| |
| def main(argv): |
| """Our main wrapper.""" |
| # Add support for a custom mode where arguments are fed line by line on |
| # stdin. This allows us to get around command line length limitations. |
| if ARGS_ON_STDIN in argv: |
| argv = [x for x in argv if x != ARGS_ON_STDIN] |
| argv.extend(x.strip() for x in sys.stdin) |
| |
| # Set default config options with the PYLINTRC environment variable. This will |
| # allow overriding with "more local" config file options, such as a local |
| # "pylintrc" file, the "--rcfile" command-line flag, or an existing PYLINTRC. |
| # |
| # Note that this is not quite the same thing as replacing pylint's built-in |
| # defaults, since, based on config file precedence, it will not be overridden |
| # by "more global" config file options, such as ~/.pylintrc, |
| # ~/.config/pylintrc, or /etc/pylintrc. This is generally the desired |
| # behavior, since we want to enforce these defaults in most cases, but allow |
| # them to be overridden for specific code or repos. |
| # |
| # If someone really doesn't ever want the depot_tools pylintrc, they can set |
| # their own PYLINTRC, or set an empty PYLINTRC to use pylint's normal config |
| # file resolution, which would include the "more global" options that are |
| # normally overridden by the depot_tools config. |
| if os.path.isfile(RC_FILE) and 'PYLINTRC' not in os.environ: |
| os.environ['PYLINTRC'] = RC_FILE |
| |
| # This import has to happen after PYLINTRC is set because the module tries to |
| # resolve the config file location on load. |
| from pylint import lint # pylint: disable=bad-option-value,import-outside-toplevel |
| lint.Run(argv) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main(sys.argv[1:])) |