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import contextlib
import os
import shlex
from typing import Generator
from typing import Sequence
from typing import Tuple
from pre_commit.envcontext import envcontext
from pre_commit.envcontext import PatchesT
from pre_commit.envcontext import Var
from pre_commit.hook import Hook
from pre_commit.languages import helpers
from pre_commit.prefix import Prefix
from pre_commit.util import clean_path_on_failure
ENVIRONMENT_DIR = 'perl_env'
get_default_version = helpers.basic_get_default_version
healthy = helpers.basic_healthy
def _envdir(prefix: Prefix, version: str) -> str:
directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
return prefix.path(directory)
def get_env_patch(venv: str) -> PatchesT:
return (
('PATH', (os.path.join(venv, 'bin'), os.pathsep, Var('PATH'))),
('PERL5LIB', os.path.join(venv, 'lib', 'perl5')),
('PERL_MB_OPT', f'--install_base {shlex.quote(venv)}'),
(
'PERL_MM_OPT', (
f'INSTALL_BASE={shlex.quote(venv)} '
f'INSTALLSITEMAN1DIR=none INSTALLSITEMAN3DIR=none'
),
),
)
@contextlib.contextmanager
def in_env(
prefix: Prefix,
language_version: str,
) -> Generator[None, None, None]:
with envcontext(get_env_patch(_envdir(prefix, language_version))):
yield
def install_environment(
prefix: Prefix, version: str, additional_dependencies: Sequence[str],
) -> None:
helpers.assert_version_default('perl', version)
with clean_path_on_failure(_envdir(prefix, version)):
with in_env(prefix, version):
helpers.run_setup_cmd(
prefix, ('cpan', '-T', '.', *additional_dependencies),
)
def run_hook(
hook: Hook,
file_args: Sequence[str],
color: bool,
) -> Tuple[int, bytes]:
with in_env(hook.prefix, hook.language_version):
return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
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