Created
July 25, 2014 13:43
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python flake8 git pre-commit hook
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#!/usr/bin/env python | |
from __future__ import with_statement | |
import os | |
import shutil | |
import subprocess | |
import sys | |
import tempfile | |
def system(*args, **kwargs): | |
kwargs.setdefault('stdout', subprocess.PIPE) | |
proc = subprocess.Popen(args, **kwargs) | |
out, err = proc.communicate() | |
return out | |
def main(): | |
files = (file for file in system('git', 'diff', '--name-only', '--staged', '--diff-filter=AM').splitlines() if file.endswith('.py')) | |
tempdir = tempfile.mkdtemp() | |
for name in files: | |
filename = os.path.join(tempdir, name) | |
filepath = os.path.dirname(filename) | |
if not os.path.exists(filepath): | |
os.makedirs(filepath) | |
with file(filename, 'w') as f: | |
system('git', 'show', ':' + name, stdout=f) | |
output = system('flake8', '--ignore=E501', '.', cwd=tempdir) | |
shutil.rmtree(tempdir) | |
if output: | |
print output, | |
sys.exit(1) | |
if __name__ == '__main__': | |
main() |
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pip install flake8