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https://github.com/pre-commit/pre-commit.git
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36 lines
956 B
Python
36 lines
956 B
Python
from __future__ import unicode_literals
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from sys import platform
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from pre_commit.xargs import xargs
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import os
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ENVIRONMENT_DIR = None
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def install_environment(
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repo_cmd_runner,
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version='default',
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additional_dependencies=(),
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):
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"""Installation for pcre type is a noop."""
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raise AssertionError('Cannot install pcre repo.')
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def run_hook(repo_cmd_runner, hook, file_args):
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grep_command = 'ggrep' if platform == 'darwin' else 'grep'
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# Determine if grep is installed on system
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if os.system('which ' + grep_command) != 0:
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raise AssertionError('Cannot execute grep command: ' + grep_command)
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# For PCRE the entry is the regular expression to match
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cmd = (
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grep_command,
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'-H', '-n', '-P',
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) + tuple(hook['args']) + (hook['entry'],)
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# Grep usually returns 0 for matches, and nonzero for non-matches so we
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# negate it here.
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return xargs(cmd, file_args, negate=True)
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