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from __future__ import annotations
import contextlib
import os
from typing import Generator
from typing import Sequence
from pre_commit.envcontext import envcontext
from pre_commit.envcontext import PatchesT
from pre_commit.envcontext import Var
from pre_commit.hook import Hook
from pre_commit.languages import helpers
from pre_commit.parse_shebang import find_executable
from pre_commit.prefix import Prefix
from pre_commit.util import clean_path_on_failure
ENVIRONMENT_DIR = 'coursier'
get_default_version = helpers.basic_get_default_version
healthy = helpers.basic_healthy
def install_environment(
prefix: Prefix,
version: str,
additional_dependencies: Sequence[str],
) -> None: # pragma: win32 no cover
helpers.assert_version_default('coursier', version)
helpers.assert_no_additional_deps('coursier', additional_dependencies)
# Support both possible executable names (either "cs" or "coursier")
executable = find_executable('cs') or find_executable('coursier')
if executable is None:
raise AssertionError(
'pre-commit requires system-installed "cs" or "coursier" '
'executables in the application search path',
)
envdir = prefix.path(helpers.environment_dir(ENVIRONMENT_DIR, version))
channel = prefix.path('.pre-commit-channel')
with clean_path_on_failure(envdir):
for app_descriptor in os.listdir(channel):
_, app_file = os.path.split(app_descriptor)
app, _ = os.path.splitext(app_file)
helpers.run_setup_cmd(
prefix,
(
executable,
'install',
'--default-channels=false',
f'--channel={channel}',
app,
f'--dir={envdir}',
),
)
def get_env_patch(target_dir: str) -> PatchesT: # pragma: win32 no cover
return (
('PATH', (target_dir, os.pathsep, Var('PATH'))),
)
@contextlib.contextmanager
def in_env(
prefix: Prefix,
) -> Generator[None, None, None]: # pragma: win32 no cover
target_dir = prefix.path(
helpers.environment_dir(ENVIRONMENT_DIR, get_default_version()),
)
with envcontext(get_env_patch(target_dir)):
yield
def run_hook(
hook: Hook,
file_args: Sequence[str],
color: bool,
) -> tuple[int, bytes]: # pragma: win32 no cover
with in_env(hook.prefix):
return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
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