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node.py
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48 lines (32 loc) · 1.31 KB
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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(
helpers.environment_dir(ENVIRONMENT_DIR, self.language_version),
)
@contextlib.contextmanager
def in_env(repo_cmd_runner, language_version):
yield NodeEnv(repo_cmd_runner, language_version)
def install_environment(repo_cmd_runner, version='default'):
assert repo_cmd_runner.exists('package.json')
directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
env_dir = repo_cmd_runner.path(directory)
with clean_path_on_failure(env_dir):
cmd = [
sys.executable, '-m', 'nodeenv', '--prebuilt',
'{{prefix}}{0}'.format(directory),
]
if version != 'default':
cmd.extend(['-n', version])
repo_cmd_runner.run(cmd)
with in_env(repo_cmd_runner, version) 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, hook['language_version']) as env:
return helpers.run_hook(env, hook, file_args)