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