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Yipit Pre-commit Hook
#!/usr/bin/env python
import os
import re
import subprocess
import sys
modified = re.compile('^(?:M|A)(\s+)(?P<name>.*)')
CHECKS = [
{
'output': 'Checking for pdbs...',
'command': 'grep -n "import pdb" %s',
'ignore_files': ['.*pre-commit'],
'print_filename': True,
},
{
'output': 'Checking for ipdbs...',
'command': 'grep -n "import ipdb" %s',
'ignore_files': ['.*pre-commit'],
'print_filename': True,
},
{
'output': 'Checking for print statements...',
'command': 'grep -n print %s',
'match_files': ['.*\.py$'],
'ignore_files': ['.*migrations.*', '.*management/commands.*', '.*manage.py', '.*/scripts/.*'],
'print_filename': True,
},
{
'output': 'Running Pyflakes...',
'command': 'pyflakes %s',
'match_files': ['.*\.py$'],
'ignore_files': ['.*settings/.*', '.*manage.py', '.*migrations.*', '.*/terrain/.*'],
'print_filename': False,
},
{
'output': 'Running pep8...',
'command': 'pep8 -r --ignore=E501,W293 %s',
'match_files': ['.*\.py$'],
'ignore_files': ['.*migrations.*'],
'print_filename': False,
},
]
def matches_file(file_name, match_files):
return any(re.compile(match_file).match(file_name) for match_file in match_files)
def check_files(files, check):
result = 0
print check['output']
for file_name in files:
if not 'match_files' in check or matches_file(file_name, check['match_files']):
if not 'ignore_files' in check or not matches_file(file_name, check['ignore_files']):
process = subprocess.Popen(check['command'] % file_name, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
out, err = process.communicate()
if out or err:
if check['print_filename']:
prefix = '\t%s:' % file_name
else:
prefix = '\t'
output_lines = ['%s%s' % (prefix, line) for line in out.splitlines()]
print '\n'.join(output_lines)
if err:
print err
result = 1
return result
def main(all_files):
# Stash any changes to the working tree that are not going to be committed
subprocess.call(['git', 'stash', '-u', '--keep-index'], stdout=subprocess.PIPE)
files = []
if all_files:
for root, dirs, file_names in os.walk('.'):
for file_name in file_names:
files.append(os.path.join(root, file_name))
else:
p = subprocess.Popen(['git', 'status', '--porcelain'], stdout=subprocess.PIPE)
out, err = p.communicate()
for line in out.splitlines():
match = modified.match(line)
if match:
files.append(match.group('name'))
result = 0
print 'Running Django Code Validator...'
return_code = subprocess.call('$VIRTUAL_ENV/bin/python manage.py validate', shell=True)
result = return_code or result
for check in CHECKS:
result = check_files(files, check) or result
# Unstash changes to the working tree that we had stashed
subprocess.call(['git', 'reset', '--hard'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
subprocess.call(['git', 'stash', 'pop', '-q'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
sys.exit(result)
if __name__ == '__main__':
all_files = False
if len(sys.argv) > 1 and sys.argv[1] == '--all-files':
all_files = True
main(all_files)
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