145 lines
4.5 KiB
Python
145 lines
4.5 KiB
Python
from __future__ import annotations
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import contextlib
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import functools
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import importlib.resources
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import os.path
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import shutil
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import tarfile
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from collections.abc import Generator
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from collections.abc import Sequence
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from typing import IO
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import pre_commit.constants as C
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from pre_commit import lang_base
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from pre_commit.envcontext import envcontext
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from pre_commit.envcontext import PatchesT
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from pre_commit.envcontext import UNSET
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from pre_commit.envcontext import Var
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from pre_commit.prefix import Prefix
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from pre_commit.util import CalledProcessError
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ENVIRONMENT_DIR = 'rbenv'
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health_check = lang_base.basic_health_check
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run_hook = lang_base.basic_run_hook
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def _resource_bytesio(filename: str) -> IO[bytes]:
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files = importlib.resources.files('pre_commit.resources')
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return files.joinpath(filename).open('rb')
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@functools.lru_cache(maxsize=1)
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def get_default_version() -> str:
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if all(lang_base.exe_exists(exe) for exe in ('ruby', 'gem')):
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return 'system'
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else:
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return C.DEFAULT
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def get_env_patch(
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venv: str,
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language_version: str,
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) -> PatchesT:
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patches: PatchesT = (
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('GEM_HOME', os.path.join(venv, 'gems')),
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('GEM_PATH', UNSET),
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('BUNDLE_IGNORE_CONFIG', '1'),
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)
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if language_version == 'system':
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patches += (
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(
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'PATH', (
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os.path.join(venv, 'gems', 'bin'), os.pathsep,
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Var('PATH'),
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),
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),
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)
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else: # pragma: win32 no cover
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patches += (
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('RBENV_ROOT', venv),
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(
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'PATH', (
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os.path.join(venv, 'gems', 'bin'), os.pathsep,
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os.path.join(venv, 'shims'), os.pathsep,
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os.path.join(venv, 'bin'), os.pathsep, Var('PATH'),
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),
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),
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)
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if language_version not in {'system', 'default'}: # pragma: win32 no cover
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patches += (('RBENV_VERSION', language_version),)
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return patches
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@contextlib.contextmanager
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def in_env(prefix: Prefix, version: str) -> Generator[None]:
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envdir = lang_base.environment_dir(prefix, ENVIRONMENT_DIR, version)
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with envcontext(get_env_patch(envdir, version)):
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yield
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def _extract_resource(filename: str, dest: str) -> None:
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with _resource_bytesio(filename) as bio:
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with tarfile.open(fileobj=bio) as tf:
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tf.extractall(dest)
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def _install_rbenv(
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prefix: Prefix,
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version: str,
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) -> None: # pragma: win32 no cover
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envdir = lang_base.environment_dir(prefix, ENVIRONMENT_DIR, version)
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_extract_resource('rbenv.tar.gz', prefix.path('.'))
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shutil.move(prefix.path('rbenv'), envdir)
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# Only install ruby-build if the version is specified
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if version != C.DEFAULT:
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plugins_dir = os.path.join(envdir, 'plugins')
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_extract_resource('ruby-download.tar.gz', plugins_dir)
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_extract_resource('ruby-build.tar.gz', plugins_dir)
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def _install_ruby(
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prefix: Prefix,
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version: str,
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) -> None: # pragma: win32 no cover
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try:
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lang_base.setup_cmd(prefix, ('rbenv', 'download', version))
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except CalledProcessError: # pragma: no cover (usually find with download)
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# Failed to download from mirror for some reason, build it instead
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lang_base.setup_cmd(prefix, ('rbenv', 'install', version))
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def install_environment(
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prefix: Prefix, version: str, additional_dependencies: Sequence[str],
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) -> None:
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envdir = lang_base.environment_dir(prefix, ENVIRONMENT_DIR, version)
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if version != 'system': # pragma: win32 no cover
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_install_rbenv(prefix, version)
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with in_env(prefix, version):
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# Need to call this before installing so rbenv's directories
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# are set up
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lang_base.setup_cmd(prefix, ('rbenv', 'init', '-'))
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if version != C.DEFAULT:
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_install_ruby(prefix, version)
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# Need to call this after installing to set up the shims
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lang_base.setup_cmd(prefix, ('rbenv', 'rehash'))
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with in_env(prefix, version):
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lang_base.setup_cmd(
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prefix, ('gem', 'build', *prefix.star('.gemspec')),
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)
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lang_base.setup_cmd(
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prefix,
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(
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'gem', 'install',
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'--no-document', '--no-format-executable',
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'--no-user-install',
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'--install-dir', os.path.join(envdir, 'gems'),
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'--bindir', os.path.join(envdir, 'gems', 'bin'),
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*prefix.star('.gem'), *additional_dependencies,
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),
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)
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