Files
pre-commit/pre_commit/languages/golang.py
2018-01-11 21:41:48 -08:00

83 lines
2.5 KiB
Python

from __future__ import unicode_literals
import contextlib
import os.path
import sys
from pre_commit import git
from pre_commit.envcontext import envcontext
from pre_commit.envcontext import Var
from pre_commit.languages import helpers
from pre_commit.util import clean_path_on_failure
from pre_commit.util import cmd_output
from pre_commit.util import rmtree
from pre_commit.xargs import xargs
ENVIRONMENT_DIR = 'golangenv'
get_default_version = helpers.basic_get_default_version
healthy = helpers.basic_healthy
def get_env_patch(venv):
return (
('PATH', (os.path.join(venv, 'bin'), os.pathsep, Var('PATH'))),
)
@contextlib.contextmanager
def in_env(prefix):
envdir = prefix.path(
helpers.environment_dir(ENVIRONMENT_DIR, 'default'),
)
with envcontext(get_env_patch(envdir)):
yield
def guess_go_dir(remote_url):
if remote_url.endswith('.git'):
remote_url = remote_url[:-1 * len('.git')]
looks_like_url = (
not remote_url.startswith('file://') and
('//' in remote_url or '@' in remote_url)
)
remote_url = remote_url.replace(':', '/')
if looks_like_url:
_, _, remote_url = remote_url.rpartition('//')
_, _, remote_url = remote_url.rpartition('@')
return remote_url
else:
return 'unknown_src_dir'
def install_environment(prefix, version, additional_dependencies):
helpers.assert_version_default('golang', version)
directory = prefix.path(
helpers.environment_dir(ENVIRONMENT_DIR, 'default'),
)
with clean_path_on_failure(directory):
remote = git.get_remote_url(prefix.prefix_dir)
repo_src_dir = os.path.join(directory, 'src', guess_go_dir(remote))
# Clone into the goenv we'll create
helpers.run_setup_cmd(prefix, ('git', 'clone', '.', repo_src_dir))
if sys.platform == 'cygwin': # pragma: no cover
_, gopath, _ = cmd_output('cygpath', '-w', directory)
gopath = gopath.strip()
else:
gopath = directory
env = dict(os.environ, GOPATH=gopath)
cmd_output('go', 'get', './...', cwd=repo_src_dir, env=env)
for dependency in additional_dependencies:
cmd_output('go', 'get', dependency, cwd=repo_src_dir, env=env)
# Same some disk space, we don't need these after installation
rmtree(prefix.path(directory, 'src'))
rmtree(prefix.path(directory, 'pkg'))
def run_hook(prefix, hook, file_args):
with in_env(prefix):
return xargs(helpers.to_cmd(hook), file_args)