mirror of
https://github.com/pre-commit/pre-commit.git
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68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
from __future__ import unicode_literals
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import contextlib
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import os
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import sys
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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 clean_path_on_failure
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from pre_commit.util import cmd_output
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from pre_commit.xargs import xargs
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ENVIRONMENT_DIR = 'node_env'
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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): # pragma: windows no cover
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if sys.platform == 'cygwin': # pragma: no cover
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_, win_venv, _ = cmd_output('cygpath', '-w', venv)
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install_prefix = r'{}\bin'.format(win_venv.strip())
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else:
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install_prefix = venv
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return (
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('NODE_VIRTUAL_ENV', venv),
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('NPM_CONFIG_PREFIX', install_prefix),
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('npm_config_prefix', install_prefix),
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('NODE_PATH', os.path.join(venv, 'lib', 'node_modules')),
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('PATH', (os.path.join(venv, 'bin'), os.pathsep, Var('PATH'))),
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)
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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)):
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yield
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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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assert prefix.exists('package.json')
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directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
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env_dir = prefix.path(directory)
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with clean_path_on_failure(env_dir):
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cmd = [sys.executable, '-m', 'nodeenv', '--prebuilt', env_dir]
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if version != 'default':
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cmd.extend(['-n', version])
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cmd_output(*cmd)
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with in_env(prefix, version):
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helpers.run_setup_cmd(
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prefix,
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('npm', 'install', '-g', '.') + additional_dependencies,
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)
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def run_hook(prefix, hook, file_args): # pragma: windows no cover
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with in_env(prefix, hook['language_version']):
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return xargs(helpers.to_cmd(hook), file_args)
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