python-zulip-api/tools/lint

#! /usr/bin/env python3

import argparse

from zulint.command import add_default_linter_arguments, LinterConfig

from custom_check import python_rules, non_py_rules
from pep8 import check_pep8

EXCLUDED_FILES = [
    # This is an external file that doesn't comply with our codestyle
    'zulip/integrations/perforce/git_p4.py',
]

def run():
    # type: () -> None
    parser = argparse.ArgumentParser()
    add_default_linter_arguments(parser)
    args = parser.parse_args()

    linter_config = LinterConfig(args)

    by_lang = linter_config.list_files(file_types=['py', 'sh', 'json', 'md', 'txt'],
                                       exclude=EXCLUDED_FILES)

    linter_config.external_linter('mypy', ['tools/run-mypy'], ['py'], pass_targets=False,
                                  description="Static type checker for Python (config: mypy.ini)")

    @linter_config.lint
    def custom_py():
        # type: () -> int
        """Runs custom checks for python files (config: tools/linter_lib/custom_check.py)"""
        failed = python_rules.check(by_lang, verbose=args.verbose)
        return 1 if failed else 0

    @linter_config.lint
    def custom_nonpy():
        # type: () -> int
        """Runs custom checks for non-python files (config: tools/linter_lib/custom_check.py)"""
        failed = False
        for rule in non_py_rules:
            failed = failed or rule.check(by_lang, verbose=args.verbose)
        return 1 if failed else 0

    @linter_config.lint
    def pep8():
        # type: () -> int
        """Standard Python style linter on 50% of files (config: tools/linter_lib/pep8.py)"""
        failed = check_pep8(by_lang['py'])
        return 1 if failed else 0

    linter_config.do_lint()

if __name__ == '__main__':
    run()