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import contextlib
import os.path
import shutil
from cfgv import apply_defaults
from cfgv import validate
import pre_commit.constants as C
from pre_commit import git
from pre_commit.clientlib import CONFIG_SCHEMA
from pre_commit.clientlib import load_manifest
from pre_commit.util import cmd_output
from pre_commit.util import yaml_dump
from pre_commit.util import yaml_load
from testing.util import get_resource_path
from testing.util import git_commit
def copy_tree_to_path(src_dir, dest_dir):
"""Copies all of the things inside src_dir to an already existing dest_dir.
This looks eerily similar to shutil.copytree, but copytree has no option
for not creating dest_dir.
"""
names = os.listdir(src_dir)
for name in names:
srcname = os.path.join(src_dir, name)
destname = os.path.join(dest_dir, name)
if os.path.isdir(srcname):
shutil.copytree(srcname, destname)
else:
shutil.copy(srcname, destname)
def git_dir(tempdir_factory):
path = tempdir_factory.get()
cmd_output('git', 'init', path)
return path
def make_repo(tempdir_factory, repo_source):
path = git_dir(tempdir_factory)
copy_tree_to_path(get_resource_path(repo_source), path)
cmd_output('git', 'add', '.', cwd=path)
git_commit(msg=make_repo.__name__, cwd=path)
return path
@contextlib.contextmanager
def modify_manifest(path, commit=True):
"""Modify the manifest yielded by this context to write to
.pre-commit-hooks.yaml.
"""
manifest_path = os.path.join(path, C.MANIFEST_FILE)
with open(manifest_path) as f:
manifest = yaml_load(f.read())
yield manifest
with open(manifest_path, 'w') as manifest_file:
manifest_file.write(yaml_dump(manifest))
if commit:
git_commit(msg=modify_manifest.__name__, cwd=path)
@contextlib.contextmanager
def modify_config(path='.', commit=True):
"""Modify the config yielded by this context to write to
.pre-commit-config.yaml
"""
config_path = os.path.join(path, C.CONFIG_FILE)
with open(config_path) as f:
config = yaml_load(f.read())
yield config
with open(config_path, 'w', encoding='UTF-8') as config_file:
config_file.write(yaml_dump(config))
if commit:
git_commit(msg=modify_config.__name__, cwd=path)
def sample_local_config():
return {
'repo': 'local',
'hooks': [{
'id': 'do_not_commit',
'name': 'Block if "DO NOT COMMIT" is found',
'entry': 'DO NOT COMMIT',
'language': 'pygrep',
}],
}
def sample_meta_config():
return {'repo': 'meta', 'hooks': [{'id': 'check-useless-excludes'}]}
def make_config_from_repo(repo_path, rev=None, hooks=None, check=True):
manifest = load_manifest(os.path.join(repo_path, C.MANIFEST_FILE))
config = {
'repo': f'file://{repo_path}',
'rev': rev or git.head_rev(repo_path),
'hooks': hooks or [{'id': hook['id']} for hook in manifest],
}
if check:
wrapped = validate({'repos': [config]}, CONFIG_SCHEMA)
wrapped = apply_defaults(wrapped, CONFIG_SCHEMA)
config, = wrapped['repos']
return config
else:
return config
def read_config(directory, config_file=C.CONFIG_FILE):
config_path = os.path.join(directory, config_file)
with open(config_path) as f:
config = yaml_load(f.read())
return config
def write_config(directory, config, config_file=C.CONFIG_FILE):
if type(config) is not list and 'repos' not in config:
assert isinstance(config, dict), config
config = {'repos': [config]}
with open(os.path.join(directory, config_file), 'w') as outfile:
outfile.write(yaml_dump(config))
def add_config_to_repo(git_path, config, config_file=C.CONFIG_FILE):
write_config(git_path, config, config_file=config_file)
cmd_output('git', 'add', config_file, cwd=git_path)
git_commit(msg=add_config_to_repo.__name__, cwd=git_path)
return git_path
def remove_config_from_repo(git_path, config_file=C.CONFIG_FILE):
cmd_output('git', 'rm', config_file, cwd=git_path)
git_commit(msg=remove_config_from_repo.__name__, cwd=git_path)
return git_path
def make_consuming_repo(tempdir_factory, repo_source):
path = make_repo(tempdir_factory, repo_source)
config = make_config_from_repo(path)
git_path = git_dir(tempdir_factory)
return add_config_to_repo(git_path, config)
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