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from __future__ import annotations
import os.path
import re
import tempfile
from typing import Any
from typing import NamedTuple
from typing import Sequence
import pre_commit.constants as C
from pre_commit import git
from pre_commit import output
from pre_commit.clientlib import InvalidManifestError
from pre_commit.clientlib import load_config
from pre_commit.clientlib import load_manifest
from pre_commit.clientlib import LOCAL
from pre_commit.clientlib import META
from pre_commit.commands.migrate_config import migrate_config
from pre_commit.store import Store
from pre_commit.util import CalledProcessError
from pre_commit.util import cmd_output
from pre_commit.util import cmd_output_b
from pre_commit.yaml import yaml_dump
from pre_commit.yaml import yaml_load
class RevInfo(NamedTuple):
repo: str
rev: str
frozen: str | None
@classmethod
def from_config(cls, config: dict[str, Any]) -> RevInfo:
return cls(config['repo'], config['rev'], None)
def update(self, tags_only: bool, freeze: bool) -> RevInfo:
git_cmd = ('git', *git.NO_FS_MONITOR)
if tags_only:
tag_cmd = (
*git_cmd, 'describe',
'FETCH_HEAD', '--tags', '--abbrev=0',
)
else:
tag_cmd = (
*git_cmd, 'describe',
'FETCH_HEAD', '--tags', '--exact',
)
with tempfile.TemporaryDirectory() as tmp:
git.init_repo(tmp, self.repo)
cmd_output_b(
*git_cmd, 'fetch', 'origin', 'HEAD', '--tags',
cwd=tmp,
)
try:
rev = cmd_output(*tag_cmd, cwd=tmp)[1].strip()
except CalledProcessError:
cmd = (*git_cmd, 'rev-parse', 'FETCH_HEAD')
rev = cmd_output(*cmd, cwd=tmp)[1].strip()
else:
if tags_only:
rev = git.get_best_candidate_tag(rev, tmp)
frozen = None
if freeze:
exact_rev_cmd = (*git_cmd, 'rev-parse', rev)
exact = cmd_output(*exact_rev_cmd, cwd=tmp)[1].strip()
if exact != rev:
rev, frozen = exact, rev
return self._replace(rev=rev, frozen=frozen)
class RepositoryCannotBeUpdatedError(RuntimeError):
pass
def _check_hooks_still_exist_at_rev(
repo_config: dict[str, Any],
info: RevInfo,
store: Store,
) -> None:
try:
path = store.clone(repo_config['repo'], info.rev)
manifest = load_manifest(os.path.join(path, C.MANIFEST_FILE))
except InvalidManifestError as e:
raise RepositoryCannotBeUpdatedError(str(e))
# See if any of our hooks were deleted with the new commits
hooks = {hook['id'] for hook in repo_config['hooks']}
hooks_missing = hooks - {hook['id'] for hook in manifest}
if hooks_missing:
raise RepositoryCannotBeUpdatedError(
f'Cannot update because the update target is missing these '
f'hooks:\n{", ".join(sorted(hooks_missing))}',
)
REV_LINE_RE = re.compile(r'^(\s+)rev:(\s*)([\'"]?)([^\s#]+)(.*)(\r?\n)$')
def _original_lines(
path: str,
rev_infos: list[RevInfo | None],
retry: bool = False,
) -> tuple[list[str], list[int]]:
"""detect `rev:` lines or reformat the file"""
with open(path, newline='') as f:
original = f.read()
lines = original.splitlines(True)
idxs = [i for i, line in enumerate(lines) if REV_LINE_RE.match(line)]
if len(idxs) == len(rev_infos):
return lines, idxs
elif retry:
raise AssertionError('could not find rev lines')
else:
with open(path, 'w') as f:
f.write(yaml_dump(yaml_load(original)))
return _original_lines(path, rev_infos, retry=True)
def _write_new_config(path: str, rev_infos: list[RevInfo | None]) -> None:
lines, idxs = _original_lines(path, rev_infos)
for idx, rev_info in zip(idxs, rev_infos):
if rev_info is None:
continue
match = REV_LINE_RE.match(lines[idx])
assert match is not None
new_rev_s = yaml_dump({'rev': rev_info.rev}, default_style=match[3])
new_rev = new_rev_s.split(':', 1)[1].strip()
if rev_info.frozen is not None:
comment = f' # frozen: {rev_info.frozen}'
elif match[5].strip().startswith('# frozen:'):
comment = ''
else:
comment = match[5]
lines[idx] = f'{match[1]}rev:{match[2]}{new_rev}{comment}{match[6]}'
with open(path, 'w', newline='') as f:
f.write(''.join(lines))
def autoupdate(
config_file: str,
store: Store,
tags_only: bool,
freeze: bool,
repos: Sequence[str] = (),
) -> int:
"""Auto-update the pre-commit config to the latest versions of repos."""
migrate_config(config_file, quiet=True)
retv = 0
rev_infos: list[RevInfo | None] = []
changed = False
config = load_config(config_file)
for repo_config in config['repos']:
if repo_config['repo'] in {LOCAL, META}:
continue
info = RevInfo.from_config(repo_config)
if repos and info.repo not in repos:
rev_infos.append(None)
continue
output.write(f'Updating {info.repo} ... ')
new_info = info.update(tags_only=tags_only, freeze=freeze)
try:
_check_hooks_still_exist_at_rev(repo_config, new_info, store)
except RepositoryCannotBeUpdatedError as error:
output.write_line(error.args[0])
rev_infos.append(None)
retv = 1
continue
if new_info.rev != info.rev:
changed = True
if new_info.frozen:
updated_to = f'{new_info.frozen} (frozen)'
else:
updated_to = new_info.rev
msg = f'updating {info.rev} -> {updated_to}.'
output.write_line(msg)
rev_infos.append(new_info)
else:
output.write_line('already up to date.')
rev_infos.append(None)
if changed:
_write_new_config(config_file, rev_infos)
return retv
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