ansible/test/lib/ansible_test/_internal/sanity/pep8.py

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"""Sanity test for PEP 8 style guidelines using pycodestyle."""
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
from .. import types as t
from ..sanity import (
SanitySingleVersion,
SanityMessage,
SanityFailure,
SanitySuccess,
SANITY_ROOT,
)
from ..target import (
TestTarget,
)
from ..util import (
SubprocessError,
read_lines_without_comments,
parse_to_list_of_dict,
find_python,
is_subdir,
)
from ..util_common import (
run_command,
)
from ..config import (
SanityConfig,
)
class Pep8Test(SanitySingleVersion):
"""Sanity test for PEP 8 style guidelines using pycodestyle."""
@property
def error_code(self): # type: () -> t.Optional[str]
"""Error code for ansible-test matching the format used by the underlying test program, or None if the program does not use error codes."""
return 'A100'
def filter_targets(self, targets): # type: (t.List[TestTarget]) -> t.List[TestTarget]
"""Return the given list of test targets, filtered to include only those relevant for the test."""
return [target for target in targets if os.path.splitext(target.path)[1] == '.py' or is_subdir(target.path, 'bin')]
def test(self, args, targets, python_version):
"""
:type args: SanityConfig
:type targets: SanityTargets
:type python_version: str
:rtype: TestResult
"""
current_ignore_file = os.path.join(SANITY_ROOT, 'pep8', 'current-ignore.txt')
current_ignore = sorted(read_lines_without_comments(current_ignore_file, remove_blank_lines=True))
settings = self.load_processor(args)
paths = [target.path for target in targets.include]
cmd = [
find_python(python_version),
'-m', 'pycodestyle',
'--max-line-length', '160',
'--config', '/dev/null',
'--ignore', ','.join(sorted(current_ignore)),
] + paths
if paths:
try:
stdout, stderr = run_command(args, cmd, capture=True)
status = 0
except SubprocessError as ex:
stdout = ex.stdout
stderr = ex.stderr
status = ex.status
if stderr:
raise SubprocessError(cmd=cmd, status=status, stderr=stderr, stdout=stdout)
else:
stdout = None
if args.explain:
return SanitySuccess(self.name)
if stdout:
pattern = '^(?P<path>[^:]*):(?P<line>[0-9]+):(?P<column>[0-9]+): (?P<code>[WE][0-9]{3}) (?P<message>.*)$'
results = parse_to_list_of_dict(pattern, stdout)
else:
results = []
results = [SanityMessage(
message=r['message'],
path=r['path'],
line=int(r['line']),
column=int(r['column']),
level='warning' if r['code'].startswith('W') else 'error',
code=r['code'],
) for r in results]
errors = settings.process_errors(results, paths)
if errors:
return SanityFailure(self.name, messages=errors)
return SanitySuccess(self.name)