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import contextlib
import os.path
import shutil
import tarfile
from typing import Generator
from typing import Sequence
from typing import Tuple
import pre_commit.constants as C
from pre_commit.envcontext import envcontext
from pre_commit.envcontext import PatchesT
from pre_commit.envcontext import UNSET
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 CalledProcessError
from pre_commit.util import clean_path_on_failure
from pre_commit.util import resource_bytesio
ENVIRONMENT_DIR = 'rbenv'
get_default_version = helpers.basic_get_default_version
healthy = helpers.basic_healthy
def get_env_patch(
venv: str,
language_version: str,
) -> PatchesT: # pragma: win32 no cover
patches: PatchesT = (
('GEM_HOME', os.path.join(venv, 'gems')),
('GEM_PATH', UNSET),
('RBENV_ROOT', venv),
('BUNDLE_IGNORE_CONFIG', '1'),
(
'PATH', (
os.path.join(venv, 'gems', 'bin'), os.pathsep,
os.path.join(venv, 'shims'), os.pathsep,
os.path.join(venv, 'bin'), os.pathsep, Var('PATH'),
),
),
)
if language_version != C.DEFAULT:
patches += (('RBENV_VERSION', language_version),)
return patches
@contextlib.contextmanager # pragma: win32 no cover
def in_env(
prefix: Prefix,
language_version: str,
) -> Generator[None, None, None]:
envdir = prefix.path(
helpers.environment_dir(ENVIRONMENT_DIR, language_version),
)
with envcontext(get_env_patch(envdir, language_version)):
yield
def _extract_resource(filename: str, dest: str) -> None:
with resource_bytesio(filename) as bio:
with tarfile.open(fileobj=bio) as tf:
tf.extractall(dest)
def _install_rbenv(
prefix: Prefix,
version: str = C.DEFAULT,
) -> None: # pragma: win32 no cover
directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
_extract_resource('rbenv.tar.gz', prefix.path('.'))
shutil.move(prefix.path('rbenv'), prefix.path(directory))
# Only install ruby-build if the version is specified
if version != C.DEFAULT:
plugins_dir = prefix.path(directory, 'plugins')
_extract_resource('ruby-download.tar.gz', plugins_dir)
_extract_resource('ruby-build.tar.gz', plugins_dir)
def _install_ruby(
prefix: Prefix,
version: str,
) -> None: # pragma: win32 no cover
try:
helpers.run_setup_cmd(prefix, ('rbenv', 'download', version))
except CalledProcessError: # pragma: no cover (usually find with download)
# Failed to download from mirror for some reason, build it instead
helpers.run_setup_cmd(prefix, ('rbenv', 'install', version))
def install_environment(
prefix: Prefix, version: str, additional_dependencies: Sequence[str],
) -> None: # pragma: win32 no cover
additional_dependencies = tuple(additional_dependencies)
directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
with clean_path_on_failure(prefix.path(directory)):
# TODO: this currently will fail if there's no version specified and
# there's no system ruby installed. Is this ok?
_install_rbenv(prefix, version=version)
with in_env(prefix, version):
# Need to call this before installing so rbenv's directories are
# set up
helpers.run_setup_cmd(prefix, ('rbenv', 'init', '-'))
if version != C.DEFAULT:
_install_ruby(prefix, version)
# Need to call this after installing to set up the shims
helpers.run_setup_cmd(prefix, ('rbenv', 'rehash'))
helpers.run_setup_cmd(
prefix, ('gem', 'build', *prefix.star('.gemspec')),
)
helpers.run_setup_cmd(
prefix,
(
'gem', 'install', '--no-document',
*prefix.star('.gem'), *additional_dependencies,
),
)
def run_hook(
hook: Hook,
file_args: Sequence[str],
color: bool,
) -> Tuple[int, bytes]: # pragma: win32 no cover
with in_env(hook.prefix, hook.language_version):
return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
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