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import functools
import io
import logging
import os.path
from unittest import mock
import pytest
from pre_commit import output
from pre_commit.envcontext import envcontext
from pre_commit.logging_handler import logging_handler
from pre_commit.store import Store
from pre_commit.util import cmd_output
from pre_commit.util import make_executable
from testing.fixtures import git_dir
from testing.fixtures import make_consuming_repo
from testing.fixtures import write_config
from testing.util import cwd
from testing.util import git_commit
@pytest.fixture(autouse=True)
def no_warnings(recwarn):
yield
warnings = []
for warning in recwarn: # pragma: no cover
message = str(warning.message)
# ImportWarning: Not importing directory '...' missing __init__(.py)
if not (
isinstance(warning.message, ImportWarning) and
message.startswith('Not importing directory ') and
' missing __init__' in message
):
warnings.append(
f'{warning.filename}:{warning.lineno} {message}',
)
assert not warnings
@pytest.fixture
def tempdir_factory(tmpdir):
class TmpdirFactory:
def __init__(self):
self.tmpdir_count = 0
def get(self):
path = tmpdir.join(str(self.tmpdir_count)).strpath
self.tmpdir_count += 1
os.mkdir(path)
return path
yield TmpdirFactory()
@pytest.fixture
def in_tmpdir(tempdir_factory):
path = tempdir_factory.get()
with cwd(path):
yield path
@pytest.fixture
def in_git_dir(tmpdir):
repo = tmpdir.join('repo').ensure_dir()
with repo.as_cwd():
cmd_output('git', 'init')
yield repo
def _make_conflict():
cmd_output('git', 'checkout', 'origin/master', '-b', 'foo')
with open('conflict_file', 'w') as conflict_file:
conflict_file.write('herp\nderp\n')
cmd_output('git', 'add', 'conflict_file')
with open('foo_only_file', 'w') as foo_only_file:
foo_only_file.write('foo')
cmd_output('git', 'add', 'foo_only_file')
git_commit(msg=_make_conflict.__name__)
cmd_output('git', 'checkout', 'origin/master', '-b', 'bar')
with open('conflict_file', 'w') as conflict_file:
conflict_file.write('harp\nddrp\n')
cmd_output('git', 'add', 'conflict_file')
with open('bar_only_file', 'w') as bar_only_file:
bar_only_file.write('bar')
cmd_output('git', 'add', 'bar_only_file')
git_commit(msg=_make_conflict.__name__)
cmd_output('git', 'merge', 'foo', retcode=None)
@pytest.fixture
def in_merge_conflict(tempdir_factory):
path = make_consuming_repo(tempdir_factory, 'script_hooks_repo')
open(os.path.join(path, 'dummy'), 'a').close()
cmd_output('git', 'add', 'dummy', cwd=path)
git_commit(msg=in_merge_conflict.__name__, cwd=path)
conflict_path = tempdir_factory.get()
cmd_output('git', 'clone', path, conflict_path)
with cwd(conflict_path):
_make_conflict()
yield os.path.join(conflict_path)
@pytest.fixture
def in_conflicting_submodule(tempdir_factory):
git_dir_1 = git_dir(tempdir_factory)
git_dir_2 = git_dir(tempdir_factory)
git_commit(msg=in_conflicting_submodule.__name__, cwd=git_dir_2)
cmd_output('git', 'submodule', 'add', git_dir_2, 'sub', cwd=git_dir_1)
with cwd(os.path.join(git_dir_1, 'sub')):
_make_conflict()
yield
@pytest.fixture
def commit_msg_repo(tempdir_factory):
path = git_dir(tempdir_factory)
config = {
'repo': 'local',
'hooks': [{
'id': 'must-have-signoff',
'name': 'Must have "Signed off by:"',
'entry': 'grep -q "Signed off by:"',
'language': 'system',
'stages': ['commit-msg'],
}],
}
write_config(path, config)
with cwd(path):
cmd_output('git', 'add', '.')
git_commit(msg=commit_msg_repo.__name__)
yield path
@pytest.fixture
def prepare_commit_msg_repo(tempdir_factory):
path = git_dir(tempdir_factory)
script_name = 'add_sign_off.sh'
config = {
'repo': 'local',
'hooks': [{
'id': 'add-signoff',
'name': 'Add "Signed off by:"',
'entry': f'./{script_name}',
'language': 'script',
'stages': ['prepare-commit-msg'],
}],
}
write_config(path, config)
with cwd(path):
with open(script_name, 'w') as script_file:
script_file.write(
'#!/usr/bin/env bash\n'
'set -eu\n'
'echo "\nSigned off by: " >> "$1"\n',
)
make_executable(script_name)
cmd_output('git', 'add', '.')
git_commit(msg=prepare_commit_msg_repo.__name__)
yield path
@pytest.fixture
def failing_prepare_commit_msg_repo(tempdir_factory):
path = git_dir(tempdir_factory)
config = {
'repo': 'local',
'hooks': [{
'id': 'add-signoff',
'name': 'Add "Signed off by:"',
'entry': 'bash -c "exit 1"',
'language': 'system',
'stages': ['prepare-commit-msg'],
}],
}
write_config(path, config)
with cwd(path):
cmd_output('git', 'add', '.')
git_commit(msg=failing_prepare_commit_msg_repo.__name__)
yield path
@pytest.fixture(autouse=True, scope='session')
def dont_write_to_home_directory():
"""pre_commit.store.Store will by default write to the home directory
We'll mock out `Store.get_default_directory` to raise invariantly so we
don't construct a `Store` object that writes to our home directory.
"""
class YouForgotToExplicitlyChooseAStoreDirectory(AssertionError):
pass
with mock.patch.object(
Store,
'get_default_directory',
side_effect=YouForgotToExplicitlyChooseAStoreDirectory,
):
yield
@pytest.fixture(autouse=True, scope='session')
def configure_logging():
with logging_handler(use_color=False):
yield
@pytest.fixture
def mock_store_dir(tempdir_factory):
tmpdir = tempdir_factory.get()
with mock.patch.object(
Store,
'get_default_directory',
return_value=tmpdir,
):
yield tmpdir
@pytest.fixture
def store(tempdir_factory):
yield Store(os.path.join(tempdir_factory.get(), '.pre-commit'))
@pytest.fixture
def log_info_mock():
with mock.patch.object(logging.getLogger('pre_commit'), 'info') as mck:
yield mck
class FakeStream:
def __init__(self):
self.data = io.BytesIO()
def write(self, s):
self.data.write(s)
def flush(self):
pass
class Fixture:
def __init__(self, stream):
self._stream = stream
def get_bytes(self):
"""Get the output as-if no encoding occurred"""
data = self._stream.data.getvalue()
self._stream.data.seek(0)
self._stream.data.truncate()
return data.replace(b'\r\n', b'\n')
def get(self):
"""Get the output assuming it was written as UTF-8 bytes"""
return self.get_bytes().decode()
@pytest.fixture
def cap_out():
stream = FakeStream()
write = functools.partial(output.write, stream=stream)
write_line_b = functools.partial(output.write_line_b, stream=stream)
with mock.patch.multiple(output, write=write, write_line_b=write_line_b):
yield Fixture(stream)
@pytest.fixture
def fake_log_handler():
handler = mock.Mock(level=logging.INFO)
logger = logging.getLogger('pre_commit')
logger.addHandler(handler)
yield handler
logger.removeHandler(handler)
@pytest.fixture(scope='session', autouse=True)
def set_git_templatedir(tmpdir_factory):
tdir = str(tmpdir_factory.mktemp('git_template_dir'))
with envcontext((('GIT_TEMPLATE_DIR', tdir),)):
yield
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