zulip/tools/linter_lib/pyflakes.py

41 lines
1.6 KiB
Python

from __future__ import print_function
from __future__ import absolute_import
import subprocess
from .printer import print_err, colors
from typing import Any, Dict, List
def check_pyflakes(options, by_lang):
# type: (Any, Dict[str, List[str]]) -> bool
if len(by_lang['py']) == 0:
return False
failed = False
color = next(colors)
pyflakes = subprocess.Popen(['pyflakes'] + by_lang['py'],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
assert pyflakes.stdout is not None # Implied by use of subprocess.PIPE
for ln in iter(pyflakes.stdout.readline, b''):
if options.full or not (
b'imported but unused' in ln or
b'redefinition of unused' in ln or
# Our ipython startup pythonrc file intentionally imports *
(b"scripts/lib/pythonrc.py" in ln and
b" import *' used; unable to detect undefined names" in ln) or
# Special dev_settings.py import
b"from .prod_settings_template import *" in ln or
(b"settings.py" in ln and
(b"settings import *' used; unable to detect undefined names" in ln or
b"may be undefined, or defined from star imports" in ln)) or
(b"zerver/tornado/ioloop_logging.py" in ln and
b"redefinition of function 'instrument_tornado_ioloop'" in ln) or
(b"zephyr_mirror_backend.py:" in ln and
b"redefinition of unused 'simplejson' from line" in ln)):
print_err('pyflakes', color, ln)
failed = True
return failed