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from __future__ import absolute_import
from __future__ import unicode_literals
import argparse
import functools
import logging
import pipes
import sys
import cfgv
from aspy.yaml import ordered_load
from identify.identify import ALL_TAGS
import pre_commit.constants as C
from pre_commit.error_handler import FatalError
from pre_commit.languages.all import all_languages
from pre_commit.util import parse_version
logger = logging.getLogger('pre_commit')
def check_type_tag(tag):
if tag not in ALL_TAGS:
raise cfgv.ValidationError(
'Type tag {!r} is not recognized. '
'Try upgrading identify and pre-commit?'.format(tag),
)
def check_min_version(version):
if parse_version(version) > parse_version(C.VERSION):
raise cfgv.ValidationError(
'pre-commit version {} is required but version {} is installed. '
'Perhaps run `pip install --upgrade pre-commit`.'.format(
version, C.VERSION,
),
)
def _make_argparser(filenames_help):
parser = argparse.ArgumentParser()
parser.add_argument('filenames', nargs='*', help=filenames_help)
parser.add_argument('-V', '--version', action='version', version=C.VERSION)
return parser
MANIFEST_HOOK_DICT = cfgv.Map(
'Hook', 'id',
cfgv.Required('id', cfgv.check_string),
cfgv.Required('name', cfgv.check_string),
cfgv.Required('entry', cfgv.check_string),
cfgv.Required('language', cfgv.check_one_of(all_languages)),
cfgv.Optional('alias', cfgv.check_string, ''),
cfgv.Optional(
'files', cfgv.check_and(cfgv.check_string, cfgv.check_regex), '',
),
cfgv.Optional(
'exclude', cfgv.check_and(cfgv.check_string, cfgv.check_regex), '^$',
),
cfgv.Optional('types', cfgv.check_array(check_type_tag), ['file']),
cfgv.Optional('exclude_types', cfgv.check_array(check_type_tag), []),
cfgv.Optional(
'additional_dependencies', cfgv.check_array(cfgv.check_string), [],
),
cfgv.Optional('args', cfgv.check_array(cfgv.check_string), []),
cfgv.Optional('always_run', cfgv.check_bool, False),
cfgv.Optional('pass_filenames', cfgv.check_bool, True),
cfgv.Optional('description', cfgv.check_string, ''),
cfgv.Optional('language_version', cfgv.check_string, C.DEFAULT),
cfgv.Optional('log_file', cfgv.check_string, ''),
cfgv.Optional('minimum_pre_commit_version', cfgv.check_string, '0'),
cfgv.Optional('require_serial', cfgv.check_bool, False),
cfgv.Optional('stages', cfgv.check_array(cfgv.check_one_of(C.STAGES)), []),
cfgv.Optional('verbose', cfgv.check_bool, False),
)
MANIFEST_SCHEMA = cfgv.Array(MANIFEST_HOOK_DICT)
class InvalidManifestError(FatalError):
pass
load_manifest = functools.partial(
cfgv.load_from_filename,
schema=MANIFEST_SCHEMA,
load_strategy=ordered_load,
exc_tp=InvalidManifestError,
)
def validate_manifest_main(argv=None):
parser = _make_argparser('Manifest filenames.')
args = parser.parse_args(argv)
ret = 0
for filename in args.filenames:
try:
load_manifest(filename)
except InvalidManifestError as e:
print(e)
ret = 1
return ret
LOCAL = 'local'
META = 'meta'
class MigrateShaToRev(object):
key = 'rev'
@staticmethod
def _cond(key):
return cfgv.Conditional(
key, cfgv.check_string,
condition_key='repo',
condition_value=cfgv.NotIn(LOCAL, META),
ensure_absent=True,
)
def check(self, dct):
if dct.get('repo') in {LOCAL, META}:
self._cond('rev').check(dct)
self._cond('sha').check(dct)
elif 'sha' in dct and 'rev' in dct:
raise cfgv.ValidationError('Cannot specify both sha and rev')
elif 'sha' in dct:
self._cond('sha').check(dct)
else:
self._cond('rev').check(dct)
def apply_default(self, dct):
if 'sha' in dct:
dct['rev'] = dct.pop('sha')
def remove_default(self, dct):
pass
def _entry(modname):
"""the hook `entry` is passed through `shlex.split()` by the command
runner, so to prevent issues with spaces and backslashes (on Windows)
it must be quoted here.
"""
return '{} -m pre_commit.meta_hooks.{}'.format(
pipes.quote(sys.executable), modname,
)
def warn_unknown_keys_root(extra, orig_keys, dct):
logger.warning(
'Unexpected key(s) present at root: {}'.format(', '.join(extra)),
)
def warn_unknown_keys_repo(extra, orig_keys, dct):
logger.warning(
'Unexpected key(s) present on {}: {}'.format(
dct['repo'], ', '.join(extra),
),
)
_meta = (
(
'check-hooks-apply', (
('name', 'Check hooks apply to the repository'),
('files', C.CONFIG_FILE),
('entry', _entry('check_hooks_apply')),
),
),
(
'check-useless-excludes', (
('name', 'Check for useless excludes'),
('files', C.CONFIG_FILE),
('entry', _entry('check_useless_excludes')),
),
),
(
'identity', (
('name', 'identity'),
('verbose', True),
('entry', _entry('identity')),
),
),
)
META_HOOK_DICT = cfgv.Map(
'Hook', 'id',
cfgv.Required('id', cfgv.check_string),
cfgv.Required('id', cfgv.check_one_of(tuple(k for k, _ in _meta))),
# language must be system
cfgv.Optional('language', cfgv.check_one_of({'system'}), 'system'),
*([
# default to the hook definition for the meta hooks
cfgv.ConditionalOptional(key, cfgv.check_any, value, 'id', hook_id)
for hook_id, values in _meta
for key, value in values
] + [
# default to the "manifest" parsing
cfgv.OptionalNoDefault(item.key, item.check_fn)
# these will always be defaulted above
if item.key in {'name', 'language', 'entry'} else
item
for item in MANIFEST_HOOK_DICT.items
])
)
CONFIG_HOOK_DICT = cfgv.Map(
'Hook', 'id',
cfgv.Required('id', cfgv.check_string),
# All keys in manifest hook dict are valid in a config hook dict, but
# are optional.
# No defaults are provided here as the config is merged on top of the
# manifest.
*[
cfgv.OptionalNoDefault(item.key, item.check_fn)
for item in MANIFEST_HOOK_DICT.items
if item.key != 'id'
]
)
CONFIG_REPO_DICT = cfgv.Map(
'Repository', 'repo',
cfgv.Required('repo', cfgv.check_string),
cfgv.ConditionalRecurse(
'hooks', cfgv.Array(CONFIG_HOOK_DICT),
'repo', cfgv.NotIn(LOCAL, META),
),
cfgv.ConditionalRecurse(
'hooks', cfgv.Array(MANIFEST_HOOK_DICT),
'repo', LOCAL,
),
cfgv.ConditionalRecurse(
'hooks', cfgv.Array(META_HOOK_DICT),
'repo', META,
),
MigrateShaToRev(),
cfgv.WarnAdditionalKeys(('repo', 'rev', 'hooks'), warn_unknown_keys_repo),
)
DEFAULT_LANGUAGE_VERSION = cfgv.Map(
'DefaultLanguageVersion', None,
cfgv.NoAdditionalKeys(all_languages),
*[cfgv.Optional(x, cfgv.check_string, C.DEFAULT) for x in all_languages]
)
CONFIG_SCHEMA = cfgv.Map(
'Config', None,
cfgv.RequiredRecurse('repos', cfgv.Array(CONFIG_REPO_DICT)),
cfgv.OptionalRecurse(
'default_language_version', DEFAULT_LANGUAGE_VERSION, {},
),
cfgv.Optional(
'default_stages',
cfgv.check_array(cfgv.check_one_of(C.STAGES)),
C.STAGES,
),
cfgv.Optional('exclude', cfgv.check_regex, '^$'),
cfgv.Optional('fail_fast', cfgv.check_bool, False),
cfgv.Optional(
'minimum_pre_commit_version',
cfgv.check_and(cfgv.check_string, check_min_version),
'0',
),
cfgv.WarnAdditionalKeys(
(
'repos',
'default_language_version',
'default_stages',
'exclude',
'fail_fast',
'minimum_pre_commit_version',
),
warn_unknown_keys_root,
),
)
class InvalidConfigError(FatalError):
pass
def ordered_load_normalize_legacy_config(contents):
data = ordered_load(contents)
if isinstance(data, list):
# TODO: Once happy, issue a deprecation warning and instructions
return {'repos': data}
else:
return data
load_config = functools.partial(
cfgv.load_from_filename,
schema=CONFIG_SCHEMA,
load_strategy=ordered_load_normalize_legacy_config,
exc_tp=InvalidConfigError,
)
def validate_config_main(argv=None):
parser = _make_argparser('Config filenames.')
args = parser.parse_args(argv)
ret = 0
for filename in args.filenames:
try:
load_config(filename)
except InvalidConfigError as e:
print(e)
ret = 1
return ret
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