from __future__ import annotations import os.path import shlex import sys import time from typing import MutableMapping from unittest import mock import pytest import pre_commit.constants as C from pre_commit import color from pre_commit.commands.install_uninstall import install from pre_commit.commands.run import _compute_cols from pre_commit.commands.run import _full_msg from pre_commit.commands.run import _get_skips from pre_commit.commands.run import _has_unmerged_paths from pre_commit.commands.run import _start_msg from pre_commit.commands.run import Classifier from pre_commit.commands.run import filter_by_include_exclude from pre_commit.commands.run import run from pre_commit.util import cmd_output from pre_commit.util import make_executable from testing.auto_namedtuple import auto_namedtuple from testing.fixtures import add_config_to_repo from testing.fixtures import git_dir from testing.fixtures import make_consuming_repo from testing.fixtures import modify_config from testing.fixtures import read_config from testing.fixtures import sample_meta_config from testing.fixtures import write_config from testing.util import cmd_output_mocked_pre_commit_home from testing.util import cwd from testing.util import git_commit from testing.util import run_opts def test_start_msg(): ret = _start_msg(start='start', end_len=5, cols=15) # 4 dots: 15 - 5 - 5 - 1 assert ret == 'start....' def test_full_msg(): ret = _full_msg( start='start', end_msg='end', end_color='', use_color=False, cols=15, ) # 6 dots: 15 - 5 - 3 - 1 assert ret == 'start......end\n' def test_full_msg_with_cjk(): ret = _full_msg( start='啊あ아', end_msg='end', end_color='', use_color=False, cols=15, ) # 5 dots: 15 - 6 - 3 - 1 assert ret == '啊あ아.....end\n' def test_full_msg_with_color(): ret = _full_msg( start='start', end_msg='end', end_color=color.RED, use_color=True, cols=15, ) # 6 dots: 15 - 5 - 3 - 1 assert ret == f'start......{color.RED}end{color.NORMAL}\n' def test_full_msg_with_postfix(): ret = _full_msg( start='start', postfix='post ', end_msg='end', end_color='', use_color=False, cols=20, ) # 6 dots: 20 - 5 - 5 - 3 - 1 assert ret == 'start......post end\n' def test_full_msg_postfix_not_colored(): ret = _full_msg( start='start', postfix='post ', end_msg='end', end_color=color.RED, use_color=True, cols=20, ) # 6 dots: 20 - 5 - 5 - 3 - 1 assert ret == f'start......post {color.RED}end{color.NORMAL}\n' @pytest.fixture def repo_with_passing_hook(tempdir_factory): git_path = make_consuming_repo(tempdir_factory, 'script_hooks_repo') with cwd(git_path): yield git_path @pytest.fixture def repo_with_failing_hook(tempdir_factory): git_path = make_consuming_repo(tempdir_factory, 'failing_hook_repo') with cwd(git_path): yield git_path @pytest.fixture def aliased_repo(tempdir_factory): git_path = make_consuming_repo(tempdir_factory, 'script_hooks_repo') with cwd(git_path): with modify_config() as config: config['repos'][0]['hooks'].append( {'id': 'bash_hook', 'alias': 'foo_bash'}, ) stage_a_file() yield git_path def stage_a_file(filename='foo.py'): open(filename, 'a').close() cmd_output('git', 'add', filename) def _do_run(cap_out, store, repo, args, environ={}, config_file=C.CONFIG_FILE): with cwd(repo): # replicates `main._adjust_args_and_chdir` behaviour ret = run(config_file, store, args, environ=environ) printed = cap_out.get_bytes() return ret, printed def _test_run( cap_out, store, repo, opts, expected_outputs, expected_ret, stage, config_file=C.CONFIG_FILE, ): if stage: stage_a_file() args = run_opts(**opts) ret, printed = _do_run(cap_out, store, repo, args, config_file=config_file) assert ret == expected_ret, (ret, expected_ret, printed) for expected_output_part in expected_outputs: assert expected_output_part in printed def test_run_all_hooks_failing(cap_out, store, repo_with_failing_hook): _test_run( cap_out, store, repo_with_failing_hook, {}, ( b'Failing hook', b'Failed', b'hook id: failing_hook', b'Fail\nfoo.py\n', ), expected_ret=1, stage=True, ) def test_arbitrary_bytes_hook(cap_out, store, tempdir_factory): git_path = make_consuming_repo(tempdir_factory, 'arbitrary_bytes_repo') with cwd(git_path): _test_run( cap_out, store, git_path, {}, (b'\xe2\x98\x83\xb2\n',), 1, True, ) def test_hook_that_modifies_but_returns_zero(cap_out, store, tempdir_factory): git_path = make_consuming_repo( tempdir_factory, 'modified_file_returns_zero_repo', ) with cwd(git_path): stage_a_file('bar.py') _test_run( cap_out, store, git_path, {}, ( # The first should fail b'Failed', # With a modified file (default message + the hook's output) b'- files were modified by this hook\n\n' b'Modified: foo.py', # The next hook should pass despite the first modifying b'Passed', # The next hook should fail b'Failed', # bar.py was modified, but provides no additional output b'- files were modified by this hook\n', ), 1, True, ) def test_types_hook_repository(cap_out, store, tempdir_factory): git_path = make_consuming_repo(tempdir_factory, 'types_repo') with cwd(git_path): stage_a_file('bar.py') stage_a_file('bar.notpy') ret, printed = _do_run(cap_out, store, git_path, run_opts()) assert ret == 1 assert b'bar.py' in printed assert b'bar.notpy' not in printed def test_types_or_hook_repository(cap_out, store, tempdir_factory): git_path = make_consuming_repo(tempdir_factory, 'types_or_repo') with cwd(git_path): stage_a_file('bar.notpy') stage_a_file('bar.pxd') stage_a_file('bar.py') ret, printed = _do_run(cap_out, store, git_path, run_opts()) assert ret == 1 assert b'bar.notpy' not in printed assert b'bar.pxd' in printed assert b'bar.py' in printed def test_exclude_types_hook_repository(cap_out, store, tempdir_factory): git_path = make_consuming_repo(tempdir_factory, 'exclude_types_repo') with cwd(git_path): with open('exe', 'w') as exe: exe.write('#!/usr/bin/env python3\n') make_executable('exe') cmd_output('git', 'add', 'exe') stage_a_file('bar.py') ret, printed = _do_run(cap_out, store, git_path, run_opts()) assert ret == 1 assert b'bar.py' in printed assert b'exe' not in printed def test_global_exclude(cap_out, store, in_git_dir): config = { 'exclude': r'^foo\.py$', 'repos': [{'repo': 'meta', 'hooks': [{'id': 'identity'}]}], } write_config('.', config) open('foo.py', 'a').close() open('bar.py', 'a').close() cmd_output('git', 'add', '.') opts = run_opts(verbose=True) ret, printed = _do_run(cap_out, store, str(in_git_dir), opts) assert ret == 0 # Does not contain foo.py since it was excluded assert printed.startswith(f'identity{"." * 65}Passed\n'.encode()) assert printed.endswith(b'\n\n.pre-commit-config.yaml\nbar.py\n\n') def test_global_files(cap_out, store, in_git_dir): config = { 'files': r'^bar\.py$', 'repos': [{'repo': 'meta', 'hooks': [{'id': 'identity'}]}], } write_config('.', config) open('foo.py', 'a').close() open('bar.py', 'a').close() cmd_output('git', 'add', '.') opts = run_opts(verbose=True) ret, printed = _do_run(cap_out, store, str(in_git_dir), opts) assert ret == 0 # Does not contain foo.py since it was excluded assert printed.startswith(f'identity{"." * 65}Passed\n'.encode()) assert printed.endswith(b'\n\nbar.py\n\n') @pytest.mark.parametrize( ('t1', 't2', 'expected'), ( (1.234, 2., b'\n- duration: 0.77s\n'), (1., 1., b'\n- duration: 0s\n'), ), ) def test_verbose_duration(cap_out, store, in_git_dir, t1, t2, expected): write_config('.', {'repo': 'meta', 'hooks': [{'id': 'identity'}]}) cmd_output('git', 'add', '.') opts = run_opts(verbose=True) with mock.patch.object(time, 'time', side_effect=(t1, t2)): ret, printed = _do_run(cap_out, store, str(in_git_dir), opts) assert ret == 0 assert expected in printed @pytest.mark.parametrize( ('args', 'expected_out'), [ ( { 'show_diff_on_failure': True, }, b'All changes made by hooks:', ), ( { 'show_diff_on_failure': True, 'color': True, }, b'All changes made by hooks:', ), ( { 'show_diff_on_failure': True, 'all_files': True, }, b'reproduce locally with: pre-commit run --all-files', ), ], ) def test_show_diff_on_failure( args, expected_out, capfd, cap_out, store, tempdir_factory, ): git_path = make_consuming_repo( tempdir_factory, 'modified_file_returns_zero_repo', ) with cwd(git_path): stage_a_file('bar.py') _test_run( cap_out, store, git_path, args, # we're only testing the output after running expected_out, 1, True, ) out, _ = capfd.readouterr() assert 'diff --git' in out @pytest.mark.parametrize( ('options', 'outputs', 'expected_ret', 'stage'), ( ({}, (b'Bash hook', b'Passed'), 0, True), ({'verbose': True}, (b'foo.py\nHello World',), 0, True), ({'hook': 'bash_hook'}, (b'Bash hook', b'Passed'), 0, True), ( {'hook': 'nope'}, (b'No hook with id `nope` in stage `commit`',), 1, True, ), ( {'hook': 'nope', 'hook_stage': 'push'}, (b'No hook with id `nope` in stage `push`',), 1, True, ), ( {'all_files': True, 'verbose': True}, (b'foo.py',), 0, True, ), ( {'files': ('foo.py',), 'verbose': True}, (b'foo.py',), 0, True, ), ({}, (b'Bash hook', b'(no files to check)', b'Skipped'), 0, False), ), ) def test_run( cap_out, store, repo_with_passing_hook, options, outputs, expected_ret, stage, ): _test_run( cap_out, store, repo_with_passing_hook, options, outputs, expected_ret, stage, ) def test_run_output_logfile(cap_out, store, tempdir_factory): expected_output = ( b'This is STDOUT output\n', b'This is STDERR output\n', ) git_path = make_consuming_repo(tempdir_factory, 'logfile_repo') with cwd(git_path): _test_run( cap_out, store, git_path, {}, expected_output, expected_ret=1, stage=True, ) logfile_path = os.path.join(git_path, 'test.log') assert os.path.exists(logfile_path) with open(logfile_path, 'rb') as logfile: logfile_content = logfile.readlines() for expected_output_part in expected_output: assert expected_output_part in logfile_content def test_always_run(cap_out, store, repo_with_passing_hook): with modify_config() as config: config['repos'][0]['hooks'][0]['always_run'] = True _test_run( cap_out, store, repo_with_passing_hook, {}, (b'Bash hook', b'Passed'), 0, stage=False, ) def test_always_run_alt_config(cap_out, store, repo_with_passing_hook): repo_root = '.' config = read_config(repo_root) config['repos'][0]['hooks'][0]['always_run'] = True alt_config_file = 'alternate_config.yaml' add_config_to_repo(repo_root, config, config_file=alt_config_file) _test_run( cap_out, store, repo_with_passing_hook, {}, (b'Bash hook', b'Passed'), 0, stage=False, config_file=alt_config_file, ) def test_hook_verbose_enabled(cap_out, store, repo_with_passing_hook): with modify_config() as config: config['repos'][0]['hooks'][0]['always_run'] = True config['repos'][0]['hooks'][0]['verbose'] = True _test_run( cap_out, store, repo_with_passing_hook, {}, (b'Hello World',), 0, stage=False, ) @pytest.mark.parametrize( ('from_ref', 'to_ref'), (('master', ''), ('', 'master')), ) def test_from_ref_to_ref_error_msg_error( cap_out, store, repo_with_passing_hook, from_ref, to_ref, ): args = run_opts(from_ref=from_ref, to_ref=to_ref) ret, printed = _do_run(cap_out, store, repo_with_passing_hook, args) assert ret == 1 assert b'Specify both --from-ref and --to-ref.' in printed def test_all_push_options_ok(cap_out, store, repo_with_passing_hook): args = run_opts( from_ref='master', to_ref='master', remote_branch='master', local_branch='master', remote_name='origin', remote_url='https://example.com/repo', ) ret, printed = _do_run(cap_out, store, repo_with_passing_hook, args) assert ret == 0 assert b'Specify both --from-ref and --to-ref.' not in printed def test_is_squash_merge(cap_out, store, repo_with_passing_hook): args = run_opts(is_squash_merge='1') environ: MutableMapping[str, str] = {} ret, printed = _do_run( cap_out, store, repo_with_passing_hook, args, environ, ) assert environ['PRE_COMMIT_IS_SQUASH_MERGE'] == '1' def test_rewrite_command(cap_out, store, repo_with_passing_hook): args = run_opts(rewrite_command='amend') environ: MutableMapping[str, str] = {} ret, printed = _do_run( cap_out, store, repo_with_passing_hook, args, environ, ) assert environ['PRE_COMMIT_REWRITE_COMMAND'] == 'amend' def test_checkout_type(cap_out, store, repo_with_passing_hook): args = run_opts(from_ref='', to_ref='', checkout_type='1') environ: MutableMapping[str, str] = {} ret, printed = _do_run( cap_out, store, repo_with_passing_hook, args, environ, ) assert environ['PRE_COMMIT_CHECKOUT_TYPE'] == '1' def test_has_unmerged_paths(in_merge_conflict): assert _has_unmerged_paths() is True cmd_output('git', 'add', '.') assert _has_unmerged_paths() is False def test_merge_conflict(cap_out, store, in_merge_conflict): ret, printed = _do_run(cap_out, store, in_merge_conflict, run_opts()) assert ret == 1 assert b'Unmerged files. Resolve before committing.' in printed def test_merge_conflict_modified(cap_out, store, in_merge_conflict): # Touch another file so we have unstaged non-conflicting things assert os.path.exists('placeholder') with open('placeholder', 'w') as placeholder_file: placeholder_file.write('bar\nbaz\n') ret, printed = _do_run(cap_out, store, in_merge_conflict, run_opts()) assert ret == 1 assert b'Unmerged files. Resolve before committing.' in printed def test_merge_conflict_resolved(cap_out, store, in_merge_conflict): cmd_output('git', 'add', '.') ret, printed = _do_run(cap_out, store, in_merge_conflict, run_opts()) for msg in ( b'Checking merge-conflict files only.', b'Bash hook', b'Passed', ): assert msg in printed @pytest.mark.parametrize( ('hooks', 'expected'), ( ([], 80), ([auto_namedtuple(id='a', name='a' * 51)], 81), ( [ auto_namedtuple(id='a', name='a' * 51), auto_namedtuple(id='b', name='b' * 52), ], 82, ), ), ) def test_compute_cols(hooks, expected): assert _compute_cols(hooks) == expected @pytest.mark.parametrize( ('environ', 'expected_output'), ( ({}, set()), ({'SKIP': ''}, set()), ({'SKIP': ','}, set()), ({'SKIP': ',foo'}, {'foo'}), ({'SKIP': 'foo'}, {'foo'}), ({'SKIP': 'foo,bar'}, {'foo', 'bar'}), ({'SKIP': ' foo , bar'}, {'foo', 'bar'}), ), ) def test_get_skips(environ, expected_output): ret = _get_skips(environ) assert ret == expected_output def test_skip_hook(cap_out, store, repo_with_passing_hook): ret, printed = _do_run( cap_out, store, repo_with_passing_hook, run_opts(), {'SKIP': 'bash_hook'}, ) for msg in (b'Bash hook', b'Skipped'): assert msg in printed def test_skip_aliased_hook(cap_out, store, aliased_repo): ret, printed = _do_run( cap_out, store, aliased_repo, run_opts(hook='foo_bash'), {'SKIP': 'foo_bash'}, ) assert ret == 0 # Only the aliased hook runs and is skipped for msg in (b'Bash hook', b'Skipped'): assert printed.count(msg) == 1 def test_skip_bypasses_installation(cap_out, store, repo_with_passing_hook): config = { 'repo': 'local', 'hooks': [ { 'id': 'skipme', 'name': 'skipme', 'entry': 'skipme', 'language': 'python', 'additional_dependencies': ['/pre-commit-does-not-exist'], }, ], } add_config_to_repo(repo_with_passing_hook, config) ret, printed = _do_run( cap_out, store, repo_with_passing_hook, run_opts(all_files=True), {'SKIP': 'skipme'}, ) assert ret == 0 def test_hook_id_not_in_non_verbose_output( cap_out, store, repo_with_passing_hook, ): ret, printed = _do_run( cap_out, store, repo_with_passing_hook, run_opts(verbose=False), ) assert b'[bash_hook]' not in printed def test_hook_id_in_verbose_output(cap_out, store, repo_with_passing_hook): ret, printed = _do_run( cap_out, store, repo_with_passing_hook, run_opts(verbose=True), ) assert b'- hook id: bash_hook' in printed def test_multiple_hooks_same_id(cap_out, store, repo_with_passing_hook): with cwd(repo_with_passing_hook): # Add bash hook on there again with modify_config() as config: config['repos'][0]['hooks'].append({'id': 'bash_hook'}) stage_a_file() ret, output = _do_run(cap_out, store, repo_with_passing_hook, run_opts()) assert ret == 0 assert output.count(b'Bash hook') == 2 def test_aliased_hook_run(cap_out, store, aliased_repo): ret, output = _do_run( cap_out, store, aliased_repo, run_opts(verbose=True, hook='bash_hook'), ) assert ret == 0 # Both hooks will run since they share the same ID assert output.count(b'Bash hook') == 2 ret, output = _do_run( cap_out, store, aliased_repo, run_opts(verbose=True, hook='foo_bash'), ) assert ret == 0 # Only the aliased hook runs assert output.count(b'Bash hook') == 1 def test_non_ascii_hook_id(repo_with_passing_hook, tempdir_factory): with cwd(repo_with_passing_hook): _, stdout, _ = cmd_output_mocked_pre_commit_home( sys.executable, '-m', 'pre_commit.main', 'run', '☃', retcode=None, tempdir_factory=tempdir_factory, ) assert 'UnicodeDecodeError' not in stdout # Doesn't actually happen, but a reasonable assertion assert 'UnicodeEncodeError' not in stdout def test_stdout_write_bug_py26(repo_with_failing_hook, store, tempdir_factory): with cwd(repo_with_failing_hook): with modify_config() as config: config['repos'][0]['hooks'][0]['args'] = ['☃'] stage_a_file() install(C.CONFIG_FILE, store, hook_types=['pre-commit']) # Have to use subprocess because pytest monkeypatches sys.stdout _, out = git_commit( fn=cmd_output_mocked_pre_commit_home, tempdir_factory=tempdir_factory, retcode=None, ) assert 'UnicodeEncodeError' not in out # Doesn't actually happen, but a reasonable assertion assert 'UnicodeDecodeError' not in out def test_lots_of_files(store, tempdir_factory): # windows xargs seems to have a bug, here's a regression test for # our workaround git_path = make_consuming_repo(tempdir_factory, 'script_hooks_repo') with cwd(git_path): # Override files so we run against them with modify_config() as config: config['repos'][0]['hooks'][0]['files'] = '' # Write a crap ton of files for i in range(400): open(f'{"a" * 100}{i}', 'w').close() cmd_output('git', 'add', '.') install(C.CONFIG_FILE, store, hook_types=['pre-commit']) git_commit( fn=cmd_output_mocked_pre_commit_home, tempdir_factory=tempdir_factory, ) def test_stages(cap_out, store, repo_with_passing_hook): config = { 'repo': 'local', 'hooks': [ { 'id': f'do-not-commit-{i}', 'name': f'hook {i}', 'entry': 'DO NOT COMMIT', 'language': 'pygrep', 'stages': [stage], } for i, stage in enumerate(('commit', 'push', 'manual'), 1) ], } add_config_to_repo(repo_with_passing_hook, config) stage_a_file() def _run_for_stage(stage): args = run_opts(hook_stage=stage) ret, printed = _do_run(cap_out, store, repo_with_passing_hook, args) assert not ret, (ret, printed) # this test should only run one hook assert printed.count(b'hook ') == 1 return printed assert _run_for_stage('commit').startswith(b'hook 1...') assert _run_for_stage('push').startswith(b'hook 2...') assert _run_for_stage('manual').startswith(b'hook 3...') def test_commit_msg_hook(cap_out, store, commit_msg_repo): filename = '.git/COMMIT_EDITMSG' with open(filename, 'w') as f: f.write('This is the commit message') _test_run( cap_out, store, commit_msg_repo, {'hook_stage': 'commit-msg', 'commit_msg_filename': filename}, expected_outputs=[b'Must have "Signed off by:"', b'Failed'], expected_ret=1, stage=False, ) def test_post_checkout_hook(cap_out, store, tempdir_factory): path = git_dir(tempdir_factory) config = { 'repo': 'meta', 'hooks': [ {'id': 'identity', 'stages': ['post-checkout']}, ], } add_config_to_repo(path, config) with cwd(path): _test_run( cap_out, store, path, {'hook_stage': 'post-checkout'}, expected_outputs=[b'identity...'], expected_ret=0, stage=False, ) def test_prepare_commit_msg_hook(cap_out, store, prepare_commit_msg_repo): filename = '.git/COMMIT_EDITMSG' with open(filename, 'w') as f: f.write('This is the commit message') _test_run( cap_out, store, prepare_commit_msg_repo, {'hook_stage': 'prepare-commit-msg', 'commit_msg_filename': filename}, expected_outputs=[b'Add "Signed off by:"', b'Passed'], expected_ret=0, stage=False, ) with open(filename) as f: assert 'Signed off by: ' in f.read() def test_local_hook_passes(cap_out, store, repo_with_passing_hook): config = { 'repo': 'local', 'hooks': [ { 'id': 'identity-copy', 'name': 'identity-copy', 'entry': '{} -m pre_commit.meta_hooks.identity'.format( shlex.quote(sys.executable), ), 'language': 'system', 'files': r'\.py$', }, { 'id': 'do_not_commit', 'name': 'Block if "DO NOT COMMIT" is found', 'entry': 'DO NOT COMMIT', 'language': 'pygrep', }, ], } add_config_to_repo(repo_with_passing_hook, config) with open('placeholder.py', 'w') as staged_file: staged_file.write('"""TODO: something"""\n') cmd_output('git', 'add', 'placeholder.py') _test_run( cap_out, store, repo_with_passing_hook, opts={}, expected_outputs=[b''], expected_ret=0, stage=False, ) def test_local_hook_fails(cap_out, store, repo_with_passing_hook): config = { 'repo': 'local', 'hooks': [{ 'id': 'no-todo', 'name': 'No TODO', 'entry': 'sh -c "! grep -iI todo $@" --', 'language': 'system', }], } add_config_to_repo(repo_with_passing_hook, config) with open('placeholder.py', 'w') as staged_file: staged_file.write('"""TODO: something"""\n') cmd_output('git', 'add', 'placeholder.py') _test_run( cap_out, store, repo_with_passing_hook, opts={}, expected_outputs=[b''], expected_ret=1, stage=False, ) def test_meta_hook_passes(cap_out, store, repo_with_passing_hook): add_config_to_repo(repo_with_passing_hook, sample_meta_config()) _test_run( cap_out, store, repo_with_passing_hook, opts={}, expected_outputs=[b'Check for useless excludes'], expected_ret=0, stage=False, ) @pytest.fixture def modified_config_repo(repo_with_passing_hook): with modify_config(repo_with_passing_hook, commit=False) as config: # Some minor modification config['repos'][0]['hooks'][0]['files'] = '' yield repo_with_passing_hook def test_error_with_unstaged_config(cap_out, store, modified_config_repo): args = run_opts() ret, printed = _do_run(cap_out, store, modified_config_repo, args) assert b'Your pre-commit configuration is unstaged.' in printed assert ret == 1 def test_commit_msg_missing_filename(cap_out, store, repo_with_passing_hook): args = run_opts(hook_stage='commit-msg') ret, printed = _do_run(cap_out, store, repo_with_passing_hook, args) assert ret == 1 assert printed == ( b'[ERROR] `--commit-msg-filename` is required for ' b'`--hook-stage commit-msg`\n' ) @pytest.mark.parametrize( 'opts', (run_opts(all_files=True), run_opts(files=[C.CONFIG_FILE])), ) def test_no_unstaged_error_with_all_files_or_files( cap_out, store, modified_config_repo, opts, ): ret, printed = _do_run(cap_out, store, modified_config_repo, opts) assert b'Your pre-commit configuration is unstaged.' not in printed def test_files_running_subdir(repo_with_passing_hook, tempdir_factory): with cwd(repo_with_passing_hook): os.mkdir('subdir') open('subdir/foo.py', 'w').close() cmd_output('git', 'add', 'subdir/foo.py') with cwd('subdir'): # Use subprocess to demonstrate behaviour in main _, stdout, _ = cmd_output_mocked_pre_commit_home( sys.executable, '-m', 'pre_commit.main', 'run', '-v', # Files relative to where we are (#339) '--files', 'foo.py', tempdir_factory=tempdir_factory, ) assert 'subdir/foo.py' in stdout @pytest.mark.parametrize( ('pass_filenames', 'hook_args', 'expected_out'), ( (True, [], b'foo.py'), (False, [], b''), (True, ['some', 'args'], b'some args foo.py'), (False, ['some', 'args'], b'some args'), ), ) def test_pass_filenames( cap_out, store, repo_with_passing_hook, pass_filenames, hook_args, expected_out, ): with modify_config() as config: config['repos'][0]['hooks'][0]['pass_filenames'] = pass_filenames config['repos'][0]['hooks'][0]['args'] = hook_args stage_a_file() ret, printed = _do_run( cap_out, store, repo_with_passing_hook, run_opts(verbose=True), ) assert expected_out + b'\nHello World' in printed assert (b'foo.py' in printed) == pass_filenames def test_fail_fast(cap_out, store, repo_with_failing_hook): with modify_config() as config: # More than one hook config['fail_fast'] = True config['repos'][0]['hooks'] *= 2 stage_a_file() ret, printed = _do_run(cap_out, store, repo_with_failing_hook, run_opts()) # it should have only run one hook assert printed.count(b'Failing hook') == 1 def test_fail_fast_per_hook(cap_out, store, repo_with_failing_hook): with modify_config() as config: # More than one hook config['repos'][0]['hooks'] *= 2 config['repos'][0]['hooks'][0]['fail_fast'] = True stage_a_file() ret, printed = _do_run(cap_out, store, repo_with_failing_hook, run_opts()) # it should have only run one hook assert printed.count(b'Failing hook') == 1 def test_classifier_removes_dne(): classifier = Classifier(('this_file_does_not_exist',)) assert classifier.filenames == [] def test_classifier_normalizes_filenames_on_windows_to_forward_slashes(tmpdir): with tmpdir.as_cwd(): tmpdir.join('a/b/c').ensure() with mock.patch.object(os, 'altsep', '/'): with mock.patch.object(os, 'sep', '\\'): classifier = Classifier.from_config((r'a\b\c',), '', '^$') assert classifier.filenames == ['a/b/c'] def test_classifier_does_not_normalize_backslashes_non_windows(tmpdir): with mock.patch.object(os.path, 'lexists', return_value=True): with mock.patch.object(os, 'altsep', None): with mock.patch.object(os, 'sep', '/'): classifier = Classifier.from_config((r'a/b\c',), '', '^$') assert classifier.filenames == [r'a/b\c'] def test_classifier_empty_types_or(tmpdir): tmpdir.join('bar').ensure() os.symlink(tmpdir.join('bar'), tmpdir.join('foo')) with tmpdir.as_cwd(): classifier = Classifier(('foo', 'bar')) for_symlink = classifier.by_types( classifier.filenames, types=['symlink'], types_or=[], exclude_types=[], ) for_file = classifier.by_types( classifier.filenames, types=['file'], types_or=[], exclude_types=[], ) assert for_symlink == ['foo'] assert for_file == ['bar'] @pytest.fixture def some_filenames(): return ( '.pre-commit-hooks.yaml', 'pre_commit/git.py', 'pre_commit/main.py', ) def test_include_exclude_base_case(some_filenames): ret = filter_by_include_exclude(some_filenames, '', '^$') assert ret == [ '.pre-commit-hooks.yaml', 'pre_commit/git.py', 'pre_commit/main.py', ] def test_matches_broken_symlink(tmpdir): with tmpdir.as_cwd(): os.symlink('does-not-exist', 'link') ret = filter_by_include_exclude({'link'}, '', '^$') assert ret == ['link'] def test_include_exclude_total_match(some_filenames): ret = filter_by_include_exclude(some_filenames, r'^.*\.py$', '^$') assert ret == ['pre_commit/git.py', 'pre_commit/main.py'] def test_include_exclude_does_search_instead_of_match(some_filenames): ret = filter_by_include_exclude(some_filenames, r'\.yaml$', '^$') assert ret == ['.pre-commit-hooks.yaml'] def test_include_exclude_exclude_removes_files(some_filenames): ret = filter_by_include_exclude(some_filenames, '', r'\.py$') assert ret == ['.pre-commit-hooks.yaml'] def test_args_hook_only(cap_out, store, repo_with_passing_hook): config = { 'repo': 'local', 'hooks': [ { 'id': 'identity-copy', 'name': 'identity-copy', 'entry': '{} -m pre_commit.meta_hooks.identity'.format( shlex.quote(sys.executable), ), 'language': 'system', 'files': r'\.py$', 'stages': ['commit'], }, { 'id': 'do_not_commit', 'name': 'Block if "DO NOT COMMIT" is found', 'entry': 'DO NOT COMMIT', 'language': 'pygrep', }, ], } add_config_to_repo(repo_with_passing_hook, config) stage_a_file() ret, printed = _do_run( cap_out, store, repo_with_passing_hook, run_opts(hook='do_not_commit'), ) assert b'identity-copy' not in printed def test_skipped_without_any_setup_for_post_checkout(in_git_dir, store): environ = {'_PRE_COMMIT_SKIP_POST_CHECKOUT': '1'} opts = run_opts(hook_stage='post-checkout') assert run(C.CONFIG_FILE, store, opts, environ=environ) == 0 def test_pre_commit_env_variable_set(cap_out, store, repo_with_passing_hook): args = run_opts() environ: MutableMapping[str, str] = {} ret, printed = _do_run( cap_out, store, repo_with_passing_hook, args, environ, ) assert environ['PRE_COMMIT'] == '1'