pre-commit/tests/repository_test.py

from __future__ import absolute_import
from __future__ import unicode_literals

import os.path
import re
import shutil

import cfgv
import mock
import pytest

import pre_commit.constants as C
from pre_commit import five
from pre_commit import parse_shebang
from pre_commit.clientlib import CONFIG_SCHEMA
from pre_commit.clientlib import load_manifest
from pre_commit.envcontext import envcontext
from pre_commit.languages import golang
from pre_commit.languages import helpers
from pre_commit.languages import node
from pre_commit.languages import pcre
from pre_commit.languages import python
from pre_commit.languages import ruby
from pre_commit.languages import rust
from pre_commit.prefix import Prefix
from pre_commit.repository import all_hooks
from pre_commit.repository import Hook
from pre_commit.repository import install_hook_envs
from pre_commit.util import cmd_output
from testing.fixtures import make_config_from_repo
from testing.fixtures import make_repo
from testing.fixtures import modify_manifest
from testing.util import cwd
from testing.util import get_resource_path
from testing.util import skipif_cant_run_docker
from testing.util import skipif_cant_run_swift
from testing.util import xfailif_broken_deep_listdir
from testing.util import xfailif_no_pcre_support
from testing.util import xfailif_no_venv
from testing.util import xfailif_windows_no_ruby


def _norm_out(b):
    return b.replace(b'\r\n', b'\n')


def _get_hook_no_install(repo_config, store, hook_id):
    config = {'repos': [repo_config]}
    config = cfgv.validate(config, CONFIG_SCHEMA)
    config = cfgv.apply_defaults(config, CONFIG_SCHEMA)
    hooks = all_hooks(config, store)
    hook, = [hook for hook in hooks if hook.id == hook_id]
    return hook


def _get_hook(repo_config, store, hook_id):
    hook = _get_hook_no_install(repo_config, store, hook_id)
    install_hook_envs([hook], store)
    return hook


def _test_hook_repo(
        tempdir_factory,
        store,
        repo_path,
        hook_id,
        args,
        expected,
        expected_return_code=0,
        config_kwargs=None,
):
    path = make_repo(tempdir_factory, repo_path)
    config = make_config_from_repo(path, **(config_kwargs or {}))
    ret = _get_hook(config, store, hook_id).run(args)
    assert ret[0] == expected_return_code
    assert _norm_out(ret[1]) == expected


def test_python_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'python_hooks_repo',
        'foo', [os.devnull],
        b"['" + five.to_bytes(os.devnull) + b"']\nHello World\n",
    )


def test_python_hook_default_version(tempdir_factory, store):
    # make sure that this continues to work for platforms where default
    # language detection does not work
    with mock.patch.object(
            python, 'get_default_version', return_value=C.DEFAULT,
    ):
        test_python_hook(tempdir_factory, store)


def test_python_hook_args_with_spaces(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'python_hooks_repo',
        'foo',
        [],
        b"['i have spaces', 'and\"\\'quotes', '$and !this']\n"
        b'Hello World\n',
        config_kwargs={
            'hooks': [{
                'id': 'foo',
                'args': ['i have spaces', 'and"\'quotes', '$and !this'],
            }],
        },
    )


def test_python_hook_weird_setup_cfg(in_git_dir, tempdir_factory, store):
    in_git_dir.join('setup.cfg').write('[install]\ninstall_scripts=/usr/sbin')

    _test_hook_repo(
        tempdir_factory, store, 'python_hooks_repo',
        'foo', [os.devnull],
        b"['" + five.to_bytes(os.devnull) + b"']\nHello World\n",
    )


@xfailif_no_venv
def test_python_venv(tempdir_factory, store):  # pragma: no cover (no venv)
    _test_hook_repo(
        tempdir_factory, store, 'python_venv_hooks_repo',
        'foo', [os.devnull],
        b"['" + five.to_bytes(os.devnull) + b"']\nHello World\n",
    )


def test_switch_language_versions_doesnt_clobber(tempdir_factory, store):
    # We're using the python3 repo because it prints the python version
    path = make_repo(tempdir_factory, 'python3_hooks_repo')

    def run_on_version(version, expected_output):
        config = make_config_from_repo(path)
        config['hooks'][0]['language_version'] = version
        ret = _get_hook(config, store, 'python3-hook').run([])
        assert ret[0] == 0
        assert _norm_out(ret[1]) == expected_output

    run_on_version('python2', b'2\n[]\nHello World\n')
    run_on_version('python3', b'3\n[]\nHello World\n')


def test_versioned_python_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'python3_hooks_repo',
        'python3-hook',
        [os.devnull],
        b"3\n['" + five.to_bytes(os.devnull) + b"']\nHello World\n",
    )


@skipif_cant_run_docker  # pragma: windows no cover
def test_run_a_docker_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'docker_hooks_repo',
        'docker-hook',
        ['Hello World from docker'], b'Hello World from docker\n',
    )


@skipif_cant_run_docker  # pragma: windows no cover
def test_run_a_docker_hook_with_entry_args(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'docker_hooks_repo',
        'docker-hook-arg',
        ['Hello World from docker'], b'Hello World from docker',
    )


@skipif_cant_run_docker  # pragma: windows no cover
def test_run_a_failing_docker_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'docker_hooks_repo',
        'docker-hook-failing',
        ['Hello World from docker'], b'',
        expected_return_code=1,
    )


@skipif_cant_run_docker  # pragma: windows no cover
@pytest.mark.parametrize('hook_id', ('echo-entrypoint', 'echo-cmd'))
def test_run_a_docker_image_hook(tempdir_factory, store, hook_id):
    _test_hook_repo(
        tempdir_factory, store, 'docker_image_hooks_repo',
        hook_id,
        ['Hello World from docker'], b'Hello World from docker\n',
    )


@xfailif_broken_deep_listdir
def test_run_a_node_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'node_hooks_repo',
        'foo', [os.devnull], b'Hello World\n',
    )


@xfailif_broken_deep_listdir
def test_run_versioned_node_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'node_versioned_hooks_repo',
        'versioned-node-hook', [os.devnull], b'v9.3.0\nHello World\n',
    )


@xfailif_windows_no_ruby
def test_run_a_ruby_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'ruby_hooks_repo',
        'ruby_hook', [os.devnull], b'Hello world from a ruby hook\n',
    )


@xfailif_windows_no_ruby
def test_run_versioned_ruby_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'ruby_versioned_hooks_repo',
        'ruby_hook',
        [os.devnull],
        b'2.5.1\nHello world from a ruby hook\n',
    )


@xfailif_windows_no_ruby
def test_run_ruby_hook_with_disable_shared_gems(
        tempdir_factory,
        store,
        tmpdir,
):
    """Make sure a Gemfile in the project doesn't interfere."""
    tmpdir.join('Gemfile').write('gem "lol_hai"')
    tmpdir.join('.bundle').mkdir()
    tmpdir.join('.bundle', 'config').write(
        'BUNDLE_DISABLE_SHARED_GEMS: true\n'
        'BUNDLE_PATH: vendor/gem\n',
    )
    with cwd(tmpdir.strpath):
        _test_hook_repo(
            tempdir_factory, store, 'ruby_versioned_hooks_repo',
            'ruby_hook',
            [os.devnull],
            b'2.5.1\nHello world from a ruby hook\n',
        )


def test_system_hook_with_spaces(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'system_hook_with_spaces_repo',
        'system-hook-with-spaces', [os.devnull], b'Hello World\n',
    )


@skipif_cant_run_swift  # pragma: windows no cover
def test_swift_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'swift_hooks_repo',
        'swift-hooks-repo', [], b'Hello, world!\n',
    )


def test_golang_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'golang_hooks_repo',
        'golang-hook', [], b'hello world\n',
    )


def test_golang_hook_still_works_when_gobin_is_set(tempdir_factory, store):
    gobin_dir = tempdir_factory.get()
    with envcontext([('GOBIN', gobin_dir)]):
        test_golang_hook(tempdir_factory, store)
    assert os.listdir(gobin_dir) == []


def test_rust_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'rust_hooks_repo',
        'rust-hook', [], b'hello world\n',
    )


@pytest.mark.parametrize('dep', ('cli:shellharden:3.1.0', 'cli:shellharden'))
def test_additional_rust_cli_dependencies_installed(
        tempdir_factory, store, dep,
):
    path = make_repo(tempdir_factory, 'rust_hooks_repo')
    config = make_config_from_repo(path)
    # A small rust package with no dependencies.
    config['hooks'][0]['additional_dependencies'] = [dep]
    hook = _get_hook(config, store, 'rust-hook')
    binaries = os.listdir(
        hook.prefix.path(
            helpers.environment_dir(rust.ENVIRONMENT_DIR, C.DEFAULT), 'bin',
        ),
    )
    # normalize for windows
    binaries = [os.path.splitext(binary)[0] for binary in binaries]
    assert 'shellharden' in binaries


def test_additional_rust_lib_dependencies_installed(
        tempdir_factory, store,
):
    path = make_repo(tempdir_factory, 'rust_hooks_repo')
    config = make_config_from_repo(path)
    # A small rust package with no dependencies.
    deps = ['shellharden:3.1.0']
    config['hooks'][0]['additional_dependencies'] = deps
    hook = _get_hook(config, store, 'rust-hook')
    binaries = os.listdir(
        hook.prefix.path(
            helpers.environment_dir(rust.ENVIRONMENT_DIR, C.DEFAULT), 'bin',
        ),
    )
    # normalize for windows
    binaries = [os.path.splitext(binary)[0] for binary in binaries]
    assert 'rust-hello-world' in binaries
    assert 'shellharden' not in binaries


def test_missing_executable(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'not_found_exe',
        'not-found-exe', [os.devnull],
        b'Executable `i-dont-exist-lol` not found',
        expected_return_code=1,
    )


def test_run_a_script_hook(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'script_hooks_repo',
        'bash_hook', ['bar'], b'bar\nHello World\n',
    )


def test_run_hook_with_spaced_args(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'arg_per_line_hooks_repo',
        'arg-per-line',
        ['foo bar', 'baz'],
        b'arg: hello\narg: world\narg: foo bar\narg: baz\n',
    )


def test_run_hook_with_curly_braced_arguments(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'arg_per_line_hooks_repo',
        'arg-per-line',
        [],
        b"arg: hi {1}\narg: I'm {a} problem\n",
        config_kwargs={
            'hooks': [{
                'id': 'arg-per-line',
                'args': ['hi {1}', "I'm {a} problem"],
            }],
        },
    )


def _make_grep_repo(language, entry, store, args=()):
    config = {
        'repo': 'local',
        'hooks': [{
            'id': 'grep-hook',
            'name': 'grep-hook',
            'language': language,
            'entry': entry,
            'args': args,
            'types': ['text'],
        }],
    }
    return _get_hook(config, store, 'grep-hook')


@pytest.fixture
def greppable_files(tmpdir):
    with tmpdir.as_cwd():
        cmd_output('git', 'init', '.')
        tmpdir.join('f1').write_binary(b"hello'hi\nworld\n")
        tmpdir.join('f2').write_binary(b'foo\nbar\nbaz\n')
        tmpdir.join('f3').write_binary(b'[WARN] hi\n')
        yield tmpdir


class TestPygrep(object):
    language = 'pygrep'

    def test_grep_hook_matching(self, greppable_files, store):
        hook = _make_grep_repo(self.language, 'ello', store)
        ret, out, _ = hook.run(('f1', 'f2', 'f3'))
        assert ret == 1
        assert _norm_out(out) == b"f1:1:hello'hi\n"

    def test_grep_hook_case_insensitive(self, greppable_files, store):
        hook = _make_grep_repo(self.language, 'ELLO', store, args=['-i'])
        ret, out, _ = hook.run(('f1', 'f2', 'f3'))
        assert ret == 1
        assert _norm_out(out) == b"f1:1:hello'hi\n"

    @pytest.mark.parametrize('regex', ('nope', "foo'bar", r'^\[INFO\]'))
    def test_grep_hook_not_matching(self, regex, greppable_files, store):
        hook = _make_grep_repo(self.language, regex, store)
        ret, out, _ = hook.run(('f1', 'f2', 'f3'))
        assert (ret, out) == (0, b'')


@xfailif_no_pcre_support  # pragma: windows no cover
class TestPCRE(TestPygrep):
    """organized as a class for xfailing pcre"""
    language = 'pcre'

    def test_pcre_hook_many_files(self, greppable_files, store):
        # This is intended to simulate lots of passing files and one failing
        # file to make sure it still fails.  This is not the case when naively
        # using a system hook with `grep -H -n '...'`
        hook = _make_grep_repo('pcre', 'ello', store)
        ret, out, _ = hook.run((os.devnull,) * 15000 + ('f1',))
        assert ret == 1
        assert _norm_out(out) == b"f1:1:hello'hi\n"

    def test_missing_pcre_support(self, greppable_files, store):
        def no_grep(exe, **kwargs):
            assert exe == pcre.GREP
            return None

        with mock.patch.object(parse_shebang, 'find_executable', no_grep):
            hook = _make_grep_repo('pcre', 'ello', store)
            ret, out, _ = hook.run(('f1', 'f2', 'f3'))
            assert ret == 1
            expected = 'Executable `{}` not found'.format(pcre.GREP).encode()
            assert out == expected


def _norm_pwd(path):
    # Under windows bash's temp and windows temp is different.
    # This normalizes to the bash /tmp
    return cmd_output(
        'bash', '-c', "cd '{}' && pwd".format(path),
        encoding=None,
    )[1].strip()


def test_cwd_of_hook(in_git_dir, tempdir_factory, store):
    # Note: this doubles as a test for `system` hooks
    _test_hook_repo(
        tempdir_factory, store, 'prints_cwd_repo',
        'prints_cwd', ['-L'], _norm_pwd(in_git_dir.strpath) + b'\n',
    )


def test_lots_of_files(tempdir_factory, store):
    _test_hook_repo(
        tempdir_factory, store, 'script_hooks_repo',
        'bash_hook', [os.devnull] * 15000, mock.ANY,
    )


def test_additional_dependencies_roll_forward(tempdir_factory, store):
    path = make_repo(tempdir_factory, 'python_hooks_repo')

    config1 = make_config_from_repo(path)
    hook1 = _get_hook(config1, store, 'foo')
    with python.in_env(hook1.prefix, hook1.language_version):
        assert 'mccabe' not in cmd_output('pip', 'freeze', '-l')[1]

    # Make another repo with additional dependencies
    config2 = make_config_from_repo(path)
    config2['hooks'][0]['additional_dependencies'] = ['mccabe']
    hook2 = _get_hook(config2, store, 'foo')
    with python.in_env(hook2.prefix, hook2.language_version):
        assert 'mccabe' in cmd_output('pip', 'freeze', '-l')[1]

    # should not have affected original
    with python.in_env(hook1.prefix, hook1.language_version):
        assert 'mccabe' not in cmd_output('pip', 'freeze', '-l')[1]


@xfailif_windows_no_ruby  # pragma: windows no cover
def test_additional_ruby_dependencies_installed(tempdir_factory, store):
    path = make_repo(tempdir_factory, 'ruby_hooks_repo')
    config = make_config_from_repo(path)
    config['hooks'][0]['additional_dependencies'] = ['tins']
    hook = _get_hook(config, store, 'ruby_hook')
    with ruby.in_env(hook.prefix, hook.language_version):
        output = cmd_output('gem', 'list', '--local')[1]
        assert 'tins' in output


@xfailif_broken_deep_listdir  # pragma: windows no cover
def test_additional_node_dependencies_installed(tempdir_factory, store):
    path = make_repo(tempdir_factory, 'node_hooks_repo')
    config = make_config_from_repo(path)
    # Careful to choose a small package that's not depped by npm
    config['hooks'][0]['additional_dependencies'] = ['lodash']
    hook = _get_hook(config, store, 'foo')
    with node.in_env(hook.prefix, hook.language_version):
        output = cmd_output('npm', 'ls', '-g')[1]
        assert 'lodash' in output


def test_additional_golang_dependencies_installed(
        tempdir_factory, store,
):
    path = make_repo(tempdir_factory, 'golang_hooks_repo')
    config = make_config_from_repo(path)
    # A small go package
    deps = ['github.com/golang/example/hello']
    config['hooks'][0]['additional_dependencies'] = deps
    hook = _get_hook(config, store, 'golang-hook')
    binaries = os.listdir(
        hook.prefix.path(
            helpers.environment_dir(golang.ENVIRONMENT_DIR, C.DEFAULT), 'bin',
        ),
    )
    # normalize for windows
    binaries = [os.path.splitext(binary)[0] for binary in binaries]
    assert 'hello' in binaries


def test_local_golang_additional_dependencies(store):
    config = {
        'repo': 'local',
        'hooks': [{
            'id': 'hello',
            'name': 'hello',
            'entry': 'hello',
            'language': 'golang',
            'additional_dependencies': ['github.com/golang/example/hello'],
        }],
    }
    ret = _get_hook(config, store, 'hello').run(())
    assert ret[0] == 0
    assert _norm_out(ret[1]) == b'Hello, Go examples!\n'


def test_local_rust_additional_dependencies(store):
    config = {
        'repo': 'local',
        'hooks': [{
            'id': 'hello',
            'name': 'hello',
            'entry': 'hello',
            'language': 'rust',
            'additional_dependencies': ['cli:hello-cli:0.2.2'],
        }],
    }
    ret = _get_hook(config, store, 'hello').run(())
    assert ret[0] == 0
    assert _norm_out(ret[1]) == b'Hello World!\n'


def test_fail_hooks(store):
    config = {
        'repo': 'local',
        'hooks': [{
            'id': 'fail',
            'name': 'fail',
            'language': 'fail',
            'entry': 'make sure to name changelogs as .rst!',
            'files': r'changelog/.*(?<!\.rst)$',
        }],
    }
    hook = _get_hook(config, store, 'fail')
    ret = hook.run(('changelog/1234.bugfix', 'changelog/wat'))
    assert ret[0] == 1
    assert ret[1] == (
        b'make sure to name changelogs as .rst!\n'
        b'\n'
        b'changelog/1234.bugfix\n'
        b'changelog/wat\n'
    )


def test_unknown_keys(store, fake_log_handler):
    config = {
        'repo': 'local',
        'hooks': [{
            'id': 'too-much',
            'name': 'too much',
            'hello': 'world',
            'foo': 'bar',
            'language': 'system',
            'entry': 'true',
        }],
    }
    _get_hook(config, store, 'too-much')
    expected = 'Unexpected key(s) present on local => too-much: foo, hello'
    assert fake_log_handler.handle.call_args[0][0].msg == expected


def test_reinstall(tempdir_factory, store, log_info_mock):
    path = make_repo(tempdir_factory, 'python_hooks_repo')
    config = make_config_from_repo(path)
    _get_hook(config, store, 'foo')
    # We print some logging during clone (1) + install (3)
    assert log_info_mock.call_count == 4
    log_info_mock.reset_mock()
    # Reinstall on another run should not trigger another install
    _get_hook(config, store, 'foo')
    assert log_info_mock.call_count == 0


def test_control_c_control_c_on_install(tempdir_factory, store):
    """Regression test for #186."""
    path = make_repo(tempdir_factory, 'python_hooks_repo')
    config = make_config_from_repo(path)
    hooks = [_get_hook_no_install(config, store, 'foo')]

    class MyKeyboardInterrupt(KeyboardInterrupt):
        pass

    # To simulate a killed install, we'll make PythonEnv.run raise ^C
    # and then to simulate a second ^C during cleanup, we'll make shutil.rmtree
    # raise as well.
    with pytest.raises(MyKeyboardInterrupt):
        with mock.patch.object(
            helpers, 'run_setup_cmd', side_effect=MyKeyboardInterrupt,
        ):
            with mock.patch.object(
                shutil, 'rmtree', side_effect=MyKeyboardInterrupt,
            ):
                install_hook_envs(hooks, store)

    # Should have made an environment, however this environment is broken!
    hook, = hooks
    assert hook.prefix.exists(
        helpers.environment_dir(python.ENVIRONMENT_DIR, hook.language_version),
    )

    # However, it should be perfectly runnable (reinstall after botched
    # install)
    install_hook_envs(hooks, store)
    retv, stdout, stderr = hook.run(())
    assert retv == 0


def test_invalidated_virtualenv(tempdir_factory, store):
    # A cached virtualenv may become invalidated if the system python upgrades
    # This should not cause every hook in that virtualenv to fail.
    path = make_repo(tempdir_factory, 'python_hooks_repo')
    config = make_config_from_repo(path)
    hook = _get_hook(config, store, 'foo')

    # Simulate breaking of the virtualenv
    libdir = hook.prefix.path(
        helpers.environment_dir(python.ENVIRONMENT_DIR, hook.language_version),
        'lib', hook.language_version,
    )
    paths = [
        os.path.join(libdir, p) for p in ('site.py', 'site.pyc', '__pycache__')
    ]
    cmd_output('rm', '-rf', *paths)

    # pre-commit should rebuild the virtualenv and it should be runnable
    retv, stdout, stderr = _get_hook(config, store, 'foo').run(())
    assert retv == 0


def test_really_long_file_paths(tempdir_factory, store):
    base_path = tempdir_factory.get()
    really_long_path = os.path.join(base_path, 'really_long' * 10)
    cmd_output('git', 'init', really_long_path)

    path = make_repo(tempdir_factory, 'python_hooks_repo')
    config = make_config_from_repo(path)

    with cwd(really_long_path):
        _get_hook(config, store, 'foo')


def test_config_overrides_repo_specifics(tempdir_factory, store):
    path = make_repo(tempdir_factory, 'script_hooks_repo')
    config = make_config_from_repo(path)

    hook = _get_hook(config, store, 'bash_hook')
    assert hook.files == ''
    # Set the file regex to something else
    config['hooks'][0]['files'] = '\\.sh$'
    hook = _get_hook(config, store, 'bash_hook')
    assert hook.files == '\\.sh$'


def _create_repo_with_tags(tempdir_factory, src, tag):
    path = make_repo(tempdir_factory, src)
    cmd_output('git', 'tag', tag, cwd=path)
    return path


def test_tags_on_repositories(in_tmpdir, tempdir_factory, store):
    tag = 'v1.1'
    git1 = _create_repo_with_tags(tempdir_factory, 'prints_cwd_repo', tag)
    git2 = _create_repo_with_tags(tempdir_factory, 'script_hooks_repo', tag)

    config1 = make_config_from_repo(git1, rev=tag)
    ret1 = _get_hook(config1, store, 'prints_cwd').run(('-L',))
    assert ret1[0] == 0
    assert ret1[1].strip() == _norm_pwd(in_tmpdir)

    config2 = make_config_from_repo(git2, rev=tag)
    ret2 = _get_hook(config2, store, 'bash_hook').run(('bar',))
    assert ret2[0] == 0
    assert ret2[1] == b'bar\nHello World\n'


@pytest.fixture
def local_python_config():
    # Make a "local" hooks repo that just installs our other hooks repo
    repo_path = get_resource_path('python_hooks_repo')
    manifest = load_manifest(os.path.join(repo_path, C.MANIFEST_FILE))
    hooks = [
        dict(hook, additional_dependencies=[repo_path]) for hook in manifest
    ]
    return {'repo': 'local', 'hooks': hooks}


def test_local_python_repo(store, local_python_config):
    hook = _get_hook(local_python_config, store, 'foo')
    # language_version should have been adjusted to the interpreter version
    assert hook.language_version != C.DEFAULT
    ret = hook.run(('filename',))
    assert ret[0] == 0
    assert _norm_out(ret[1]) == b"['filename']\nHello World\n"


def test_default_language_version(store, local_python_config):
    config = {
        'default_language_version': {'python': 'fake'},
        'default_stages': ['commit'],
        'repos': [local_python_config],
    }

    # `language_version` was not set, should default
    hook, = all_hooks(config, store)
    assert hook.language_version == 'fake'

    # `language_version` is set, should not default
    config['repos'][0]['hooks'][0]['language_version'] = 'fake2'
    hook, = all_hooks(config, store)
    assert hook.language_version == 'fake2'


def test_default_stages(store, local_python_config):
    config = {
        'default_language_version': {'python': C.DEFAULT},
        'default_stages': ['commit'],
        'repos': [local_python_config],
    }

    # `stages` was not set, should default
    hook, = all_hooks(config, store)
    assert hook.stages == ['commit']

    # `stages` is set, should not default
    config['repos'][0]['hooks'][0]['stages'] = ['push']
    hook, = all_hooks(config, store)
    assert hook.stages == ['push']


def test_hook_id_not_present(tempdir_factory, store, fake_log_handler):
    path = make_repo(tempdir_factory, 'script_hooks_repo')
    config = make_config_from_repo(path)
    config['hooks'][0]['id'] = 'i-dont-exist'
    with pytest.raises(SystemExit):
        _get_hook(config, store, 'i-dont-exist')
    assert fake_log_handler.handle.call_args[0][0].msg == (
        '`i-dont-exist` is not present in repository file://{}.  '
        'Typo? Perhaps it is introduced in a newer version?  '
        'Often `pre-commit autoupdate` fixes this.'.format(path)
    )


def test_too_new_version(tempdir_factory, store, fake_log_handler):
    path = make_repo(tempdir_factory, 'script_hooks_repo')
    with modify_manifest(path) as manifest:
        manifest[0]['minimum_pre_commit_version'] = '999.0.0'
    config = make_config_from_repo(path)
    with pytest.raises(SystemExit):
        _get_hook(config, store, 'bash_hook')
    msg = fake_log_handler.handle.call_args[0][0].msg
    assert re.match(
        r'^The hook `bash_hook` requires pre-commit version 999\.0\.0 but '
        r'version \d+\.\d+\.\d+ is installed.  '
        r'Perhaps run `pip install --upgrade pre-commit`\.$',
        msg,
    )


@pytest.mark.parametrize('version', ('0.1.0', C.VERSION))
def test_versions_ok(tempdir_factory, store, version):
    path = make_repo(tempdir_factory, 'script_hooks_repo')
    with modify_manifest(path) as manifest:
        manifest[0]['minimum_pre_commit_version'] = version
    config = make_config_from_repo(path)
    # Should succeed
    _get_hook(config, store, 'bash_hook')


def test_manifest_hooks(tempdir_factory, store):
    path = make_repo(tempdir_factory, 'script_hooks_repo')
    config = make_config_from_repo(path)
    hook = _get_hook(config, store, 'bash_hook')

    assert hook == Hook(
        src='file://{}'.format(path),
        prefix=Prefix(mock.ANY),
        additional_dependencies=[],
        alias='',
        always_run=False,
        args=[],
        description='',
        entry='bin/hook.sh',
        exclude='^$',
        exclude_types=[],
        files='',
        id='bash_hook',
        language='script',
        language_version='default',
        log_file='',
        minimum_pre_commit_version='0',
        name='Bash hook',
        pass_filenames=True,
        require_serial=False,
        stages=(
            'commit', 'prepare-commit-msg', 'commit-msg', 'manual', 'push',
        ),
        types=['file'],
        verbose=False,
    )