mirror of
https://github.com/pre-commit/pre-commit.git
synced 2026-01-13 12:30:08 -06:00
130 lines
4.8 KiB
Python
130 lines
4.8 KiB
Python
from __future__ import unicode_literals
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import contextlib
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import io
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import os.path
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import shutil
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import tarfile
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import pre_commit.constants as C
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from pre_commit.envcontext import envcontext
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from pre_commit.envcontext import Var
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from pre_commit.languages import helpers
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from pre_commit.util import CalledProcessError
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from pre_commit.util import clean_path_on_failure
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from pre_commit.util import resource_bytesio
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ENVIRONMENT_DIR = 'rbenv'
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get_default_version = helpers.basic_get_default_version
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healthy = helpers.basic_healthy
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def get_env_patch(venv, language_version): # pragma: windows no cover
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patches = (
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('GEM_HOME', os.path.join(venv, 'gems')),
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('RBENV_ROOT', venv),
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('BUNDLE_IGNORE_CONFIG', '1'),
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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 != C.DEFAULT:
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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, language_version): # pragma: windows no cover
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envdir = prefix.path(
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helpers.environment_dir(ENVIRONMENT_DIR, language_version),
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)
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with envcontext(get_env_patch(envdir, language_version)):
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yield
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def _extract_resource(filename, dest):
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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(prefix, version=C.DEFAULT): # pragma: windows no cover
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directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
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_extract_resource('rbenv.tar.gz', prefix.path('.'))
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shutil.move(prefix.path('rbenv'), prefix.path(directory))
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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 = prefix.path(directory, '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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activate_path = prefix.path(directory, 'bin', 'activate')
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with io.open(activate_path, 'w') as activate_file:
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# This is similar to how you would install rbenv to your home directory
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# However we do a couple things to make the executables exposed and
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# configure it to work in our directory.
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# We also modify the PS1 variable for manual debugging sake.
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activate_file.write(
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'#!/usr/bin/env bash\n'
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"export RBENV_ROOT='{directory}'\n"
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'export PATH="$RBENV_ROOT/bin:$PATH"\n'
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'eval "$(rbenv init -)"\n'
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'export PS1="(rbenv)$PS1"\n'
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# This lets us install gems in an isolated and repeatable
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# directory
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"export GEM_HOME='{directory}/gems'\n"
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'export PATH="$GEM_HOME/bin:$PATH"\n'
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'\n'.format(directory=prefix.path(directory)),
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)
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# If we aren't using the system ruby, add a version here
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if version != C.DEFAULT:
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activate_file.write('export RBENV_VERSION="{}"\n'.format(version))
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def _install_ruby(prefix, version): # pragma: windows no cover
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try:
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helpers.run_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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helpers.run_setup_cmd(prefix, ('rbenv', 'install', version))
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def install_environment(
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prefix, version, additional_dependencies,
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): # pragma: windows no cover
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additional_dependencies = tuple(additional_dependencies)
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directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
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with clean_path_on_failure(prefix.path(directory)):
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# TODO: this currently will fail if there's no version specified and
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# there's no system ruby installed. Is this ok?
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_install_rbenv(prefix, version=version)
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with in_env(prefix, version):
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# Need to call this before installing so rbenv's directories are
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# set up
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helpers.run_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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helpers.run_setup_cmd(prefix, ('rbenv', 'rehash'))
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helpers.run_setup_cmd(
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prefix, ('gem', 'build') + prefix.star('.gemspec'),
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)
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helpers.run_setup_cmd(
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prefix,
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('gem', 'install', '--no-document') +
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prefix.star('.gem') + additional_dependencies,
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)
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def run_hook(hook, file_args): # pragma: windows no cover
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with in_env(hook.prefix, hook.language_version):
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return helpers.run_xargs(hook, helpers.to_cmd(hook), file_args)
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