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from __future__ import annotations
import functools
import logging
import os.path
import re
import shlex
import sys
from collections.abc import Sequence
from typing import Any
from typing import NamedTuple
import cfgv
from identify.identify import ALL_TAGS
import pre_commit.constants as C
from pre_commit.all_languages import language_names
from pre_commit.errors import FatalError
from pre_commit.yaml import yaml_load
logger = logging.getLogger('pre_commit')
check_string_regex = cfgv.check_and(cfgv.check_string, cfgv.check_regex)
HOOK_TYPES = (
'commit-msg',
'post-checkout',
'post-commit',
'post-merge',
'post-rewrite',
'pre-commit',
'pre-merge-commit',
'pre-push',
'pre-rebase',
'prepare-commit-msg',
'editor'
)
# `manual` is not invoked by any installed git hook. See #719
STAGES = (*HOOK_TYPES, 'manual')
def check_type_tag(tag: str) -> None:
if tag not in ALL_TAGS:
raise cfgv.ValidationError(
f'Type tag {tag!r} is not recognized. '
f'Try upgrading identify and pre-commit?',
)
def parse_version(s: str) -> tuple[int, ...]:
"""poor man's version comparison"""
return tuple(int(p) for p in s.split('.'))
def check_min_version(version: str) -> None:
if parse_version(version) > parse_version(C.VERSION):
raise cfgv.ValidationError(
f'pre-commit version {version} is required but version '
f'{C.VERSION} is installed. '
f'Perhaps run `pip install --upgrade pre-commit`.',
)
_STAGES = {
'commit': 'pre-commit',
'merge-commit': 'pre-merge-commit',
'push': 'pre-push',
}
def transform_stage(stage: str) -> str:
return _STAGES.get(stage, stage)
MINIMAL_MANIFEST_SCHEMA = cfgv.Array(
cfgv.Map(
'Hook', 'id',
cfgv.Required('id', cfgv.check_string),
cfgv.Optional('stages', cfgv.check_array(cfgv.check_string), []),
),
)
def warn_for_stages_on_repo_init(repo: str, directory: str) -> None:
try:
manifest = cfgv.load_from_filename(
os.path.join(directory, C.MANIFEST_FILE),
schema=MINIMAL_MANIFEST_SCHEMA,
load_strategy=yaml_load,
exc_tp=InvalidManifestError,
)
except InvalidManifestError:
return # they'll get a better error message when it actually loads!
legacy_stages = {} # sorted set
for hook in manifest:
for stage in hook.get('stages', ()):
if stage in _STAGES:
legacy_stages[stage] = True
# # Just make this quiet since we (CDX) are aware of this. We will update the stage names a few weeks
# # after the migration to the latest version rolls out.
# if legacy_stages:
# logger.warning(
# f'repo `{repo}` uses deprecated stage names '
# f'({", ".join(legacy_stages)}) which will be removed in a '
# f'future version. '
# f'Hint: often `pre-commit autoupdate --repo {shlex.quote(repo)}` '
# f'will fix this. '
# f'if it does not -- consider reporting an issue to that repo.',
# )
class StagesMigrationNoDefault(NamedTuple):
key: str
default: Sequence[str]
def check(self, dct: dict[str, Any]) -> None:
if self.key not in dct:
return
val = dct[self.key]
cfgv.check_array(cfgv.check_any)(val)
val = [transform_stage(v) for v in val]
cfgv.check_array(cfgv.check_one_of(STAGES))(val)
def apply_default(self, dct: dict[str, Any]) -> None:
if self.key not in dct:
return
dct[self.key] = [transform_stage(v) for v in dct[self.key]]
def remove_default(self, dct: dict[str, Any]) -> None:
raise NotImplementedError
class StagesMigration(StagesMigrationNoDefault):
def apply_default(self, dct: dict[str, Any]) -> None:
dct.setdefault(self.key, self.default)
super().apply_default(dct)
class DeprecatedStagesWarning(NamedTuple):
key: str
def check(self, dct: dict[str, Any]) -> None:
if self.key not in dct:
return
val = dct[self.key]
cfgv.check_array(cfgv.check_any)(val)
# # Just make this quiet since we (CDX) are aware of this. We will update the stage names a few weeks
# # after the migration to the latest version rolls out.
# legacy_stages = [stage for stage in val if stage in _STAGES]
# if legacy_stages:
# logger.warning(
# f'hook id `{dct["id"]}` uses deprecated stage names '
# f'({", ".join(legacy_stages)}) which will be removed in a '
# f'future version. '
# f'run: `pre-commit migrate-config` to automatically fix this.',
# )
def apply_default(self, dct: dict[str, Any]) -> None:
pass
def remove_default(self, dct: dict[str, Any]) -> None:
raise NotImplementedError
class DeprecatedDefaultStagesWarning(NamedTuple):
key: str
def check(self, dct: dict[str, Any]) -> None:
if self.key not in dct:
return
val = dct[self.key]
cfgv.check_array(cfgv.check_any)(val)
# # Just make this quiet since we (CDX) are aware of this. We will update the stage names a few weeks
# # after the migration to the latest version rolls out.
# legacy_stages = [stage for stage in val if stage in _STAGES]
# if legacy_stages:
# logger.warning(
# f'top-level `default_stages` uses deprecated stage names '
# f'({", ".join(legacy_stages)}) which will be removed in a '
# f'future version. '
# f'run: `pre-commit migrate-config` to automatically fix this.',
# )
def apply_default(self, dct: dict[str, Any]) -> None:
pass
def remove_default(self, dct: dict[str, Any]) -> None:
raise NotImplementedError
MANIFEST_HOOK_DICT = cfgv.Map(
'Hook', 'id',
# check first in case it uses some newer, incompatible feature
cfgv.Optional(
'minimum_pre_commit_version',
cfgv.check_and(cfgv.check_string, check_min_version),
'0',
),
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(language_names)),
cfgv.Optional('alias', cfgv.check_string, ''),
cfgv.Optional('files', check_string_regex, ''),
cfgv.Optional('exclude', check_string_regex, '^$'),
cfgv.Optional('types', cfgv.check_array(check_type_tag), ['file']),
cfgv.Optional('types_or', cfgv.check_array(check_type_tag), []),
cfgv.Optional('exclude_types', cfgv.check_array(check_type_tag), []),
cfgv.Optional(
'additional_dependencies', cfgv.check_array(cfgv.check_string), [],
),
cfgv.Optional('args', cfgv.check_array(cfgv.check_string), []),
cfgv.Optional('always_run', cfgv.check_bool, False),
cfgv.Optional('fail_fast', cfgv.check_bool, False),
cfgv.Optional('pass_filenames', cfgv.check_bool, True),
cfgv.Optional('description', cfgv.check_string, ''),
cfgv.Optional('language_version', cfgv.check_string, C.DEFAULT),
cfgv.Optional('log_file', cfgv.check_string, ''),
cfgv.Optional('require_serial', cfgv.check_bool, False),
StagesMigration('stages', []),
cfgv.Optional('verbose', cfgv.check_bool, False),
cfgv.Optional('commit_changes', cfgv.check_bool, False),
cfgv.Optional('stream_output', cfgv.check_bool, False),
cfgv.Optional('exclude_os', cfgv.check_array(cfgv.check_string), []),
)
MANIFEST_SCHEMA = cfgv.Array(MANIFEST_HOOK_DICT)
class InvalidManifestError(FatalError):
pass
load_manifest = functools.partial(
cfgv.load_from_filename,
schema=MANIFEST_SCHEMA,
load_strategy=yaml_load,
exc_tp=InvalidManifestError,
)
LOCAL = 'local'
META = 'meta'
class WarnMutableRev(cfgv.Conditional):
def check(self, dct: dict[str, Any]) -> None:
super().check(dct)
if self.key in dct:
rev = dct[self.key]
if '.' not in rev and not re.match(r'^[a-fA-F0-9]+$', rev):
logger.warning(
f'The {self.key!r} field of repo {dct["repo"]!r} '
f'appears to be a mutable reference '
f'(moving tag / branch). Mutable references are never '
f'updated after first install and are not supported. '
f'See https://pre-commit.com/#using-the-latest-version-for-a-repository ' # noqa: E501
f'for more details. '
f'Hint: `pre-commit autoupdate` often fixes this.',
)
class OptionalSensibleRegexAtHook(cfgv.OptionalNoDefault):
def check(self, dct: dict[str, Any]) -> None:
super().check(dct)
if '/*' in dct.get(self.key, ''):
logger.warning(
f'The {self.key!r} field in hook {dct.get("id")!r} is a '
f"regex, not a glob -- matching '/*' probably isn't what you "
f'want here',
)
for fwd_slash_re in (r'[\\/]', r'[\/]', r'[/\\]'):
if fwd_slash_re in dct.get(self.key, ''):
logger.warning(
fr'pre-commit normalizes slashes in the {self.key!r} '
fr'field in hook {dct.get("id")!r} to forward slashes, '
fr'so you can use / instead of {fwd_slash_re}',
)
class OptionalSensibleRegexAtTop(cfgv.OptionalNoDefault):
def check(self, dct: dict[str, Any]) -> None:
super().check(dct)
if '/*' in dct.get(self.key, ''):
logger.warning(
f'The top-level {self.key!r} field is a regex, not a glob -- '
f"matching '/*' probably isn't what you want here",
)
for fwd_slash_re in (r'[\\/]', r'[\/]', r'[/\\]'):
if fwd_slash_re in dct.get(self.key, ''):
logger.warning(
fr'pre-commit normalizes the slashes in the top-level '
fr'{self.key!r} field to forward slashes, so you '
fr'can use / instead of {fwd_slash_re}',
)
def _entry(modname: str) -> str:
"""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 f'{shlex.quote(sys.executable)} -m pre_commit.meta_hooks.{modname}'
def warn_unknown_keys_root(
extra: Sequence[str],
orig_keys: Sequence[str],
dct: dict[str, str],
) -> None:
logger.warning(f'Unexpected key(s) present at root: {", ".join(extra)}')
def warn_unknown_keys_repo(
extra: Sequence[str],
orig_keys: Sequence[str],
dct: dict[str, str],
) -> None:
logger.warning(
f'Unexpected key(s) present on {dct["repo"]}: {", ".join(extra)}',
)
_meta = (
(
'check-hooks-apply', (
('name', 'Check hooks apply to the repository'),
('files', f'^{re.escape(C.CONFIG_FILE)}$'),
('entry', _entry('check_hooks_apply')),
),
),
(
'check-useless-excludes', (
('name', 'Check for useless excludes'),
('files', f'^{re.escape(C.CONFIG_FILE)}$'),
('entry', _entry('check_useless_excludes')),
),
),
(
'identity', (
('name', 'identity'),
('verbose', True),
('entry', _entry('identity')),
),
),
)
class NotAllowed(cfgv.OptionalNoDefault):
def check(self, dct: dict[str, Any]) -> None:
if self.key in dct:
raise cfgv.ValidationError(f'{self.key!r} cannot be overridden')
_COMMON_HOOK_WARNINGS = (
OptionalSensibleRegexAtHook('files', cfgv.check_string),
OptionalSensibleRegexAtHook('exclude', cfgv.check_string),
DeprecatedStagesWarning('stages'),
)
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'),
# entry cannot be overridden
NotAllowed('entry', cfgv.check_any),
*(
# 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
),
*_COMMON_HOOK_WARNINGS,
)
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'
if item.key != 'stages'
),
StagesMigrationNoDefault('stages', []),
*_COMMON_HOOK_WARNINGS,
)
LOCAL_HOOK_DICT = cfgv.Map(
'Hook', 'id',
*MANIFEST_HOOK_DICT.items,
*_COMMON_HOOK_WARNINGS,
)
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(LOCAL_HOOK_DICT),
'repo', LOCAL,
),
cfgv.ConditionalRecurse(
'hooks', cfgv.Array(META_HOOK_DICT),
'repo', META,
),
WarnMutableRev(
'rev', cfgv.check_string,
condition_key='repo',
condition_value=cfgv.NotIn(LOCAL, META),
ensure_absent=True,
),
cfgv.WarnAdditionalKeys(('repo', 'rev', 'hooks'), warn_unknown_keys_repo),
)
DEFAULT_LANGUAGE_VERSION = cfgv.Map(
'DefaultLanguageVersion', None,
cfgv.NoAdditionalKeys(language_names),
*(cfgv.Optional(x, cfgv.check_string, C.DEFAULT) for x in language_names),
)
CONFIG_SCHEMA = cfgv.Map(
'Config', None,
# check first in case it uses some newer, incompatible feature
cfgv.Optional(
'minimum_pre_commit_version',
cfgv.check_and(cfgv.check_string, check_min_version),
'0',
),
cfgv.RequiredRecurse('repos', cfgv.Array(CONFIG_REPO_DICT)),
cfgv.Optional(
'default_install_hook_types',
cfgv.check_array(cfgv.check_one_of(HOOK_TYPES)),
['pre-commit'],
),
cfgv.OptionalRecurse(
'default_language_version', DEFAULT_LANGUAGE_VERSION, {},
),
StagesMigration('default_stages', STAGES),
DeprecatedDefaultStagesWarning('default_stages'),
cfgv.Optional('files', check_string_regex, ''),
cfgv.Optional('exclude', check_string_regex, '^$'),
cfgv.Optional('fail_fast', cfgv.check_bool, False),
cfgv.Optional('metrics_command', cfgv.check_string, None),
cfgv.WarnAdditionalKeys(
(
'repos',
'default_install_hook_types',
'default_language_version',
'default_stages',
'files',
'exclude',
'fail_fast',
'metrics_command',
'minimum_pre_commit_version',
'ci',
),
warn_unknown_keys_root,
),
OptionalSensibleRegexAtTop('files', cfgv.check_string),
OptionalSensibleRegexAtTop('exclude', cfgv.check_string),
# do not warn about configuration for pre-commit.ci
cfgv.OptionalNoDefault('ci', cfgv.check_type(dict)),
)
class InvalidConfigError(FatalError):
pass
load_config = functools.partial(
cfgv.load_from_filename,
schema=CONFIG_SCHEMA,
load_strategy=yaml_load,
exc_tp=InvalidConfigError,
)
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