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from __future__ import absolute_import

from __future__ import unicode_literals

import argparse

import collections

import functools

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

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 _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(

'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, 'default'),

cfgv.Optional('log_file', cfgv.check_string, ''),

cfgv.Optional('minimum_pre_commit_version', cfgv.check_string, '0'),

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_SENTINEL = 'local'

_META_SENTINEL = 'meta'

class MigrateShaToRev(object):

@staticmethod

def _cond(key):

return cfgv.Conditional(

key, cfgv.check_string,

condition_key='repo',

condition_value=cfgv.NotIn(_LOCAL_SENTINEL, _META_SENTINEL),

ensure_absent=True,

)

def check(self, dct):

if dct.get('repo') in {_LOCAL_SENTINEL, _META_SENTINEL}:

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

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.RequiredRecurse('hooks', cfgv.Array(CONFIG_HOOK_DICT)),

MigrateShaToRev(),

)

CONFIG_SCHEMA = cfgv.Map(

'Config', None,

cfgv.RequiredRecurse('repos', cfgv.Array(CONFIG_REPO_DICT)),

cfgv.Optional('exclude', cfgv.check_regex, '^$'),

cfgv.Optional('fail_fast', cfgv.check_bool, False),

)

def is_local_repo(repo_entry):

return repo_entry['repo'] == _LOCAL_SENTINEL

def is_meta_repo(repo_entry):

return repo_entry['repo'] == _META_SENTINEL

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 collections.OrderedDict([('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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