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import argparse
import logging
import os.path
from typing import Optional
from typing import Tuple
import pre_commit.constants as C
from pre_commit import git
from pre_commit import output
from pre_commit.clientlib import load_manifest
from pre_commit.commands.run import run
from pre_commit.store import Store
from pre_commit.util import cmd_output_b
from pre_commit.util import tmpdir
from pre_commit.util import yaml_dump
from pre_commit.xargs import xargs
logger = logging.getLogger(__name__)
def _repo_ref(tmpdir: str, repo: str, ref: Optional[str]) -> Tuple[str, str]:
# if `ref` is explicitly passed, use it
if ref is not None:
return repo, ref
ref = git.head_rev(repo)
# if it exists on disk, we'll try and clone it with the local changes
if os.path.exists(repo) and git.has_diff('HEAD', repo=repo):
logger.warning('Creating temporary repo with uncommitted changes...')
shadow = os.path.join(tmpdir, 'shadow-repo')
cmd_output_b('git', 'clone', repo, shadow)
cmd_output_b('git', 'checkout', ref, '-b', '_pc_tmp', cwd=shadow)
idx = git.git_path('index', repo=shadow)
objs = git.git_path('objects', repo=shadow)
env = dict(os.environ, GIT_INDEX_FILE=idx, GIT_OBJECT_DIRECTORY=objs)
staged_files = git.get_staged_files(cwd=repo)
if staged_files:
xargs(('git', 'add', '--'), staged_files, cwd=repo, env=env)
cmd_output_b('git', 'add', '-u', cwd=repo, env=env)
git.commit(repo=shadow)
return shadow, git.head_rev(shadow)
else:
return repo, ref
def try_repo(args: argparse.Namespace) -> int:
with tmpdir() as tempdir:
repo, ref = _repo_ref(tempdir, args.repo, args.ref)
store = Store(tempdir)
if args.hook:
hooks = [{'id': args.hook}]
else:
repo_path = store.clone(repo, ref)
manifest = load_manifest(os.path.join(repo_path, C.MANIFEST_FILE))
manifest = sorted(manifest, key=lambda hook: hook['id'])
hooks = [{'id': hook['id']} for hook in manifest]
config = {'repos': [{'repo': repo, 'rev': ref, 'hooks': hooks}]}
config_s = yaml_dump(config)
config_filename = os.path.join(tempdir, C.CONFIG_FILE)
with open(config_filename, 'w') as cfg:
cfg.write(config_s)
output.write_line('=' * 79)
output.write_line('Using config:')
output.write_line('=' * 79)
output.write(config_s)
output.write_line('=' * 79)
return run(config_filename, store, args)
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