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58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
import contextlib
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from pre_commit.languages import helpers
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from pre_commit.languages import python
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from pre_commit.prefixed_command_runner import CalledProcessError
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from pre_commit.util import clean_path_on_failure
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ENVIRONMENT_DIR = 'node_env'
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class NodeEnv(python.PythonEnv):
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@property
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def env_prefix(self):
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base = super(NodeEnv, self).env_prefix
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return ' '.join([
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base,
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'. {{prefix}}{0}/bin/activate &&'.format(ENVIRONMENT_DIR)]
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)
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@contextlib.contextmanager
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def in_env(repo_cmd_runner):
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yield NodeEnv(repo_cmd_runner)
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def install_environment(repo_cmd_runner):
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assert repo_cmd_runner.exists('package.json')
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with clean_path_on_failure(repo_cmd_runner.path(python.ENVIRONMENT_DIR)):
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repo_cmd_runner.run(
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['virtualenv', '{{prefix}}{0}'.format(python.ENVIRONMENT_DIR)],
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)
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with python.in_env(repo_cmd_runner) as python_env:
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python_env.run('pip install nodeenv')
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with clean_path_on_failure(repo_cmd_runner.path(ENVIRONMENT_DIR)):
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# Try and use the system level node executable first
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try:
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with clean_path_on_failure(repo_cmd_runner.path(ENVIRONMENT_DIR)):
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python_env.run(
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'nodeenv -n system {{prefix}}{0}'.format(ENVIRONMENT_DIR),
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)
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except CalledProcessError:
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# TODO: log failure here
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python_env.run(
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'nodeenv --jobs 4 {{prefix}}{0}'.format(ENVIRONMENT_DIR),
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)
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with in_env(repo_cmd_runner) as node_env:
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node_env.run('cd {prefix} && npm install -g')
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def run_hook(repo_cmd_runner, hook, file_args):
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with in_env(repo_cmd_runner) as env:
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return helpers.run_hook(env, hook, file_args)
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