mirror of
https://github.com/pre-commit/pre-commit.git
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79 lines
2.4 KiB
Python
79 lines
2.4 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.languages.python import bin_dir
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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 _envdir(prefix, version):
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directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
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return prefix.path(directory)
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def get_env_patch(venv):
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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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elif sys.platform == 'win32': # pragma: no cover
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install_prefix = bin_dir(venv)
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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', (bin_dir(venv), os.pathsep, Var('PATH'))),
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)
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@contextlib.contextmanager
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def in_env(prefix, language_version):
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with envcontext(get_env_patch(_envdir(prefix, language_version))):
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yield
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def install_environment(prefix, version, additional_dependencies):
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additional_dependencies = tuple(additional_dependencies)
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assert prefix.exists('package.json')
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envdir = _envdir(prefix, version)
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# https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx?f=255&MSPPError=-2147217396#maxpath
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if sys.platform == 'win32': # pragma: no cover
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envdir = '\\\\?\\' + os.path.normpath(envdir)
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with clean_path_on_failure(envdir):
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cmd = [
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sys.executable, '-mnodeenv', '--prebuilt', '--clean-src', envdir,
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]
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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):
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with in_env(prefix, hook['language_version']):
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return xargs(
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helpers.to_cmd(hook),
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file_args,
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target_concurrency=helpers.target_concurrency(hook),
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)
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