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from __future__ import unicode_literals

import argparse

import os

import sys

import pre_commit.constants as C

from pre_commit import color

from pre_commit import five

from pre_commit import git

from pre_commit.commands.autoupdate import autoupdate

from pre_commit.commands.clean import clean

from pre_commit.commands.install_uninstall import install

from pre_commit.commands.install_uninstall import install_hooks

from pre_commit.commands.install_uninstall import uninstall

from pre_commit.commands.run import run

from pre_commit.error_handler import error_handler

from pre_commit.logging_handler import add_logging_handler

from pre_commit.runner import Runner

# https://github.com/pre-commit/pre-commit/issues/217

# On OSX, making a virtualenv using pyvenv at . causes `virtualenv` and `pip`

# to install packages to the wrong place. We don't want anything to deal with

# pyvenv

os.environ.pop('__PYVENV_LAUNCHER__', None)

def _add_color_option(parser):

parser.add_argument(

'--color', default='auto', type=color.use_color,

metavar='{' + ','.join(color.COLOR_CHOICES) + '}',

help='Whether to use color in output. Defaults to `%(default)s`.',

)

def _add_config_option(parser):

parser.add_argument(

'-c', '--config', default='.pre-commit-config.yaml',

help='Path to alternate config file'

)

def main(argv=None):

argv = argv if argv is not None else sys.argv[1:]

argv = [five.to_text(arg) for arg in argv]

parser = argparse.ArgumentParser()

# http://stackoverflow.com/a/8521644/812183

parser.add_argument(

'-V', '--version',

action='version',

version='%(prog)s {}'.format(C.VERSION),

)

subparsers = parser.add_subparsers(dest='command')

install_parser = subparsers.add_parser(

'install', help='Install the pre-commit script.',

)

_add_color_option(install_parser)

_add_config_option(install_parser)

install_parser.add_argument(

'-f', '--overwrite', action='store_true',

help='Overwrite existing hooks / remove migration mode.',

)

install_parser.add_argument(

'--install-hooks', action='store_true',

help=(

'Whether to install hook environments for all environments '

'in the config file.'

)

install_parser.add_argument(

'-t', '--hook-type', choices=('pre-commit', 'pre-push'),

default='pre-commit',

)

install_parser.add_argument(

'--allow-missing-config', action='store_true', default=False,

help=(

'Whether to allow a missing `pre-config` configuration file '

'or exit with a failure code.'

)

install_hooks_parser = subparsers.add_parser(

'install-hooks',

help=(

'Install hook environments for all environments in the config '

'file. You may find `pre-commit install --install-hooks` more '

'useful.'

)

_add_color_option(install_hooks_parser)

_add_config_option(install_hooks_parser)

uninstall_parser = subparsers.add_parser(

'uninstall', help='Uninstall the pre-commit script.',

)

_add_color_option(uninstall_parser)

_add_config_option(uninstall_parser)

uninstall_parser.add_argument(

'-t', '--hook-type', choices=('pre-commit', 'pre-push'),

default='pre-commit',

)

clean_parser = subparsers.add_parser(

'clean', help='Clean out pre-commit files.',

)

_add_color_option(clean_parser)

_add_config_option(clean_parser)

autoupdate_parser = subparsers.add_parser(

'autoupdate',

help="Auto-update pre-commit config to the latest repos' versions.",

)

_add_color_option(autoupdate_parser)

_add_config_option(autoupdate_parser)

autoupdate_parser.add_argument(

'--tags-only', action='store_true', help='Update to tags only.',

)

run_parser = subparsers.add_parser('run', help='Run hooks.')

_add_color_option(run_parser)

_add_config_option(run_parser)

run_parser.add_argument('hook', nargs='?', help='A single hook-id to run')

run_parser.add_argument(

'--no-stash', default=False, action='store_true',

help='Use this option to prevent auto stashing of unstaged files.',

)

run_parser.add_argument(

'--verbose', '-v', action='store_true', default=False,

)

run_parser.add_argument(

'--origin', '-o',

help="The origin branch's commit_id when using `git push`.",

)

run_parser.add_argument(

'--source', '-s',

help="The remote branch's commit_id when using `git push`.",

)

run_parser.add_argument(

'--allow-unstaged-config', default=False, action='store_true',

help=(

'Allow an unstaged config to be present. Note that this will '

'be stashed before parsing unless --no-stash is specified.'

)

run_parser.add_argument(

'--hook-stage', choices=('commit', 'push'), default='commit',

help='The stage during which the hook is fired e.g. commit or push.',

)

run_parser.add_argument(

'--show-diff-on-failure', action='store_true',

help='When hooks fail, run `git diff` directly afterward.',

)

run_mutex_group = run_parser.add_mutually_exclusive_group(required=False)

run_mutex_group.add_argument(

'--all-files', '-a', action='store_true', default=False,

help='Run on all the files in the repo. Implies --no-stash.',

)

run_mutex_group.add_argument(

'--files', nargs='*', default=[],

help='Specific filenames to run hooks on.',

)

help = subparsers.add_parser(

'help', help='Show help for a specific command.',

)

help.add_argument('help_cmd', nargs='?', help='Command to show help for.')

# Argparse doesn't really provide a way to use a `default` subparser

if len(argv) == 0:

argv = ['run']

args = parser.parse_args(argv)

if args.command == 'run':

args.files = [

os.path.relpath(os.path.abspath(filename), git.get_root())

for filename in args.files

]

if args.command == 'help':

if args.help_cmd:

parser.parse_args([args.help_cmd, '--help'])

else:

parser.parse_args(['--help'])

with error_handler():

add_logging_handler(args.color)

runner = Runner.create(args.config)

git.check_for_cygwin_mismatch()

if args.command == 'install':

return install(

runner, overwrite=args.overwrite, hooks=args.install_hooks,

hook_type=args.hook_type,

skip_on_missing_conf=args.allow_missing_config,

)

elif args.command == 'install-hooks':

return install_hooks(runner)

elif args.command == 'uninstall':

return uninstall(runner, hook_type=args.hook_type)

elif args.command == 'clean':

return clean(runner)

elif args.command == 'autoupdate':

return autoupdate(runner, args.tags_only)

elif args.command == 'run':

return run(runner, args)

else:

raise NotImplementedError(

'Command {} not implemented.'.format(args.command)

)

raise AssertionError(

'Command {} failed to exit with a returncode'.format(args.command)

)

if __name__ == '__main__':

exit(main())

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