def _test_style(filename, ignore):
""" Test style for a certain file.
"""
if isinstance(ignore, (list, tuple)):
ignore = ','.join(ignore)
orig_dir = os.getcwd()
orig_argv = sys.argv
os.chdir(ROOT_DIR)
sys.argv[1:] = [filename]
sys.argv.append('--ignore=' + ignore)
nerrors = 1
try:
import flake8 # noqa
from flake8.main.application import Application
app = Application()
app.run()
nerrors = app.result_count
app.exit()
except SystemExit as ex:
return nerrors
finally:
os.chdir(orig_dir)
sys.argv[:] = orig_argv
def test_style(rel_path='.'):
# Ensure we have flake8
try:
import flake8 # noqa
from flake8.main.application import Application
except ImportError as err:
sys.exit('Cannot do style test: ' + str(err))
# Prepare
os.chdir(ROOT_DIR)
if rel_path in ('', '.'):
sys.argv[1:] = ['flexx', 'flexxamples']
else:
sys.argv[1:] = ['flexx/' + rel_path]
# Do test
print('Running flake8 tests ...')
app = Application()
app.run()
# Report
nerrors = app.result_count
if nerrors:
print('Arg! Found %i style errors.' % nerrors)
else:
print('Hooray, no style errors found!')
# Exit (will exit(1) if errors)
app.exit()
def test_flake8(dir):
src_dir = os.path.abspath(os.path.join(__file__, '..', '..', dir))
app = Application()
app.run([src_dir])
assert app.result_count == 0
from flake8.main.application import Application
import pytest
if __name__ == "__main__":
# Lint code
flake8 = Application()
flake8.run(['assignment', '--max-line-length', '100'])
if flake8.result_count > 0:
print('-- flake8 found code style issues --')
flake8.exit()
# Run tests
pytest.main(['-v', '--basetemp', 'processing_results'])
def lint(paths, config, **lintargs):
from flake8.main.application import Application
log = lintargs['log']
root = lintargs['root']
config_path = os.path.join(root, '.flake8')
if lintargs.get('fix'):
fix_cmd = [
os.path.join(bindir, 'autopep8'),
'--global-config',
config_path,
'--in-place',
'--recursive',
]
if config.get('exclude'):
fix_cmd.extend(['--exclude', ','.join(config['exclude'])])
subprocess.call(fix_cmd + paths)
# Run flake8.
app = Application()
log.debug("flake8 version={}".format(app.version))
output_file = mozfile.NamedTemporaryFile(mode='r')
flake8_cmd = [
'--config',
config_path,
'--output-file',
output_file.name,
'--format',
'{"path":"%(path)s","lineno":%(row)s,'
'"column":%(col)s,"rule":"%(code)s","message":"%(text)s"}',
'--filename',
','.join(['*.{}'.format(e) for e in config['extensions']]),
]
log.debug("Command: {}".format(' '.join(flake8_cmd)))
orig_make_file_checker_manager = app.make_file_checker_manager
def wrap_make_file_checker_manager(self):
"""Flake8 is very inefficient when it comes to applying exclusion
rules, using `expand_exclusions` to turn directories into a list of
relevant python files is an order of magnitude faster.
Hooking into flake8 here also gives us a convenient place to merge the
`exclude` rules specified in the root .flake8 with the ones added by
tools/lint/mach_commands.py.
"""
# Ignore exclude rules if `--no-filter` was passed in.
config.setdefault('exclude', [])
if lintargs.get('use_filters', True):
config['exclude'].extend(self.options.exclude)
# Since we use the root .flake8 file to store exclusions, we haven't
# properly filtered the paths through mozlint's `filterpaths` function
# yet. This mimics that though there could be other edge cases that are
# different. Maybe we should call `filterpaths` directly, though for
# now that doesn't appear to be necessary.
filtered = [
p for p in paths
if not any(p.startswith(e) for e in config['exclude'])
]
self.args = self.args + list(expand_exclusions(filtered, config, root))
if not self.args:
raise NothingToLint
return orig_make_file_checker_manager()
app.make_file_checker_manager = wrap_make_file_checker_manager.__get__(
app, Application)
# Make sure to run from repository root so exclusions are joined to the
# repository root and not the current working directory.
oldcwd = os.getcwd()
os.chdir(root)
try:
app.run(flake8_cmd)
except NothingToLint:
pass
finally:
os.chdir(oldcwd)
results = []
def process_line(line):
# Escape slashes otherwise JSON conversion will not work
line = line.replace('\\', '\\\\')
try:
res = json.loads(line)
except ValueError:
print('Non JSON output from linter, will not be processed: {}'.
format(line))
return
if res.get('code') in LINE_OFFSETS:
res['lineoffset'] = LINE_OFFSETS[res['code']]
results.append(result.from_config(config, **res))
list(map(process_line, output_file.readlines()))
return results
def lint(paths, config, **lintargs):
from flake8.main.application import Application
root = lintargs['root']
config_path = os.path.join(root, '.flake8')
if lintargs.get('fix'):
fix_cmd = [
os.path.join(bindir, 'autopep8'),
'--global-config',
config_path,
'--in-place',
'--recursive',
]
if config.get('exclude'):
fix_cmd.extend(['--exclude', ','.join(config['exclude'])])
subprocess.call(fix_cmd + paths)
# Run flake8.
app = Application()
output_file = mozfile.NamedTemporaryFile(mode='r')
flake8_cmd = [
'--config',
config_path,
'--output-file',
output_file.name,
'--format',
'{"path":"%(path)s","lineno":%(row)s,'
'"column":%(col)s,"rule":"%(code)s","message":"%(text)s"}',
'--filename',
','.join(['*.{}'.format(e) for e in config['extensions']]),
]
orig_make_file_checker_manager = app.make_file_checker_manager
def wrap_make_file_checker_manager(self):
"""Flake8 is very inefficient when it comes to applying exclusion
rules, using `expand_exclusions` to turn directories into a list of
relevant python files is an order of magnitude faster.
Hooking into flake8 here also gives us a convenient place to merge the
`exclude` rules specified in the root .flake8 with the ones added by
tools/lint/mach_commands.py.
"""
config.setdefault('exclude', []).extend(self.options.exclude)
self.options.exclude = None
self.args = self.args + list(expand_exclusions(paths, config, root))
if not self.args:
raise NothingToLint
return orig_make_file_checker_manager()
app.make_file_checker_manager = wrap_make_file_checker_manager.__get__(
app, Application)
# Make sure to run from repository root so exclusions are joined to the
# repository root and not the current working directory.
oldcwd = os.getcwd()
os.chdir(root)
try:
app.run(flake8_cmd)
except NothingToLint:
pass
finally:
os.chdir(oldcwd)
results = []
def process_line(line):
# Escape slashes otherwise JSON conversion will not work
line = line.replace('\\', '\\\\')
try:
res = json.loads(line)
except ValueError:
print('Non JSON output from linter, will not be processed: {}'.
format(line))
return
if res.get('code') in LINE_OFFSETS:
res['lineoffset'] = LINE_OFFSETS[res['code']]
results.append(result.from_config(config, **res))
list(map(process_line, output_file.readlines()))
return results
from flake8.main.application import Application
import pytest
if __name__ == "__main__":
# Lint code
flake8 = Application()
flake8.run([
'assignment', '--max-line-length', '100', '--banned-modules',
'skimage.exposure = The scikit-image exposure module is not allowed for this assignment'
])
if flake8.result_count > 0:
print('-- flake8 found code style issues --')
flake8.exit()
# Run tests
pytest.main([
'-v', '--basetemp', 'processing_results', '-W',
'ignore::DeprecationWarning'
])
