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# Copyright (C) 2020 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import re
import subprocess
import sys
from typing import List, Mapping, Optional
# TODO: Empty this list!
SKIP_FILES = (
'030', '040', '041', '044', '045', '055', '056', '057', '065', '093',
'096', '118', '124', '132', '136', '139', '147', '148', '149',
'151', '152', '155', '163', '165', '194', '196', '202',
'203', '205', '206', '207', '208', '210', '211', '212', '213', '216',
'218', '219', '224', '228', '234', '235', '236', '237', '238',
'240', '242', '245', '246', '248', '255', '256', '257', '258', '260',
'262', '264', '266', '274', '277', '280', '281', '295', '296', '298',
'299', '302', '303', '304', '307',
'nbd-fault-injector.py', 'qcow2.py', 'qcow2_format.py', 'qed.py'
)
def is_python_file(filename):
if not os.path.isfile(filename):
return False
if filename.endswith('.py'):
return True
with open(filename, encoding='utf-8') as f:
try:
first_line = f.readline()
return re.match('^#!.*python', first_line) is not None
except UnicodeDecodeError: # Ignore binary files
return False
def get_test_files() -> List[str]:
named_tests = [f'tests/{entry}' for entry in os.listdir('tests')]
check_tests = set(os.listdir('.') + named_tests) - set(SKIP_FILES)
return list(filter(is_python_file, check_tests))
def run_linter(
tool: str,
args: List[str],
env: Optional[Mapping[str, str]] = None,
suppress_output: bool = False,
) -> None:
"""
Run a python-based linting tool.
:param suppress_output: If True, suppress all stdout/stderr output.
:raise CalledProcessError: If the linter process exits with failure.
"""
subprocess.run(
('python3', '-m', tool, *args),
env=env,
check=True,
stdout=subprocess.PIPE if suppress_output else None,
stderr=subprocess.STDOUT if suppress_output else None,
universal_newlines=True,
)
def main() -> None:
"""
Used by the Python CI system as an entry point to run these linters.
"""
def show_usage() -> None:
print(f"Usage: {sys.argv[0]} < --mypy | --pylint >", file=sys.stderr)
sys.exit(1)
if len(sys.argv) != 2:
show_usage()
files = get_test_files()
if sys.argv[1] == '--pylint':
run_linter('pylint', files)
elif sys.argv[1] == '--mypy':
run_linter('mypy', files)
else:
print(f"Unrecognized argument: '{sys.argv[1]}'", file=sys.stderr)
show_usage()
if __name__ == '__main__':
main()
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