mirror of
https://github.com/pre-commit/pre-commit.git
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61 lines
1.7 KiB
Python
61 lines
1.7 KiB
Python
from __future__ import unicode_literals
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import contextlib
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import sys
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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 shell_escape
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ENVIRONMENT_DIR = 'node_env'
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class NodeEnv(helpers.Environment):
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@property
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def env_prefix(self):
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return ". '{{prefix}}{0}/bin/activate' &&".format(
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helpers.environment_dir(ENVIRONMENT_DIR, self.language_version),
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)
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@contextlib.contextmanager
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def in_env(repo_cmd_runner, language_version):
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yield NodeEnv(repo_cmd_runner, language_version)
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def install_environment(
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repo_cmd_runner,
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version='default',
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additional_dependencies=None,
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):
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assert repo_cmd_runner.exists('package.json')
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directory = helpers.environment_dir(ENVIRONMENT_DIR, version)
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env_dir = repo_cmd_runner.path(directory)
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with clean_path_on_failure(env_dir):
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cmd = [
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sys.executable, '-m', 'nodeenv', '--prebuilt',
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'{{prefix}}{0}'.format(directory),
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]
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if version != 'default':
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cmd.extend(['-n', version])
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repo_cmd_runner.run(cmd)
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with in_env(repo_cmd_runner, version) as node_env:
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node_env.run("cd '{prefix}' && npm install -g")
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if additional_dependencies:
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node_env.run(
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"cd '{prefix}' && npm install -g " +
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' '.join(
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shell_escape(dep) for dep in additional_dependencies
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)
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)
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def run_hook(repo_cmd_runner, hook, file_args):
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with in_env(repo_cmd_runner, hook['language_version']) as env:
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return helpers.run_hook(env, hook, file_args)
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