Files
pre-commit/pre_commit/languages/node.py
Anthony Sottile e8a870dbbb Don't use system node.
It's usually kind of buggy and interacts poorly with local installs.
2014-08-13 10:19:30 -07:00

46 lines
1.1 KiB
Python

from __future__ import unicode_literals
import contextlib
import sys
from pre_commit.languages import helpers
from pre_commit.util import clean_path_on_failure
ENVIRONMENT_DIR = 'node_env'
class NodeEnv(helpers.Environment):
@property
def env_prefix(self):
return '. {{prefix}}{0}/bin/activate &&'.format(ENVIRONMENT_DIR)
@contextlib.contextmanager
def in_env(repo_cmd_runner):
yield NodeEnv(repo_cmd_runner)
def install_environment(repo_cmd_runner, version='default'):
assert repo_cmd_runner.exists('package.json')
env_dir = repo_cmd_runner.path(ENVIRONMENT_DIR)
with clean_path_on_failure(env_dir):
cmd = [
sys.executable, '-m', 'nodeenv', '--prebuilt',
'{{prefix}}{0}'.format(ENVIRONMENT_DIR),
]
if version != 'default':
cmd.extend(['-n', version])
repo_cmd_runner.run(cmd)
with in_env(repo_cmd_runner) as node_env:
node_env.run('cd {prefix} && npm install -g')
def run_hook(repo_cmd_runner, hook, file_args):
with in_env(repo_cmd_runner) as env:
return helpers.run_hook(env, hook, file_args)