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import contextlib
import os
import sys
from typing import Generator
from typing import Sequence
from typing import Tuple
import pre_commit.constants as C
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.prefix import Prefix
from pre_commit.util import clean_path_on_failure
from pre_commit.util import cmd_output
ENVIRONMENT_DIR = 'lua_env'
get_default_version = helpers.basic_get_default_version
healthy = helpers.basic_healthy
def _get_lua_version() -> str: # pragma: win32 no cover
"""Get the Lua version used in file paths."""
_, stdout, _ = cmd_output('luarocks', 'config', '--lua-ver')
return stdout.strip()
def get_env_patch(d: str) -> PatchesT: # pragma: win32 no cover
version = _get_lua_version()
so_ext = 'dll' if sys.platform == 'win32' else 'so'
return (
('PATH', (os.path.join(d, 'bin'), os.pathsep, Var('PATH'))),
(
'LUA_PATH', (
os.path.join(d, 'share', 'lua', version, '?.lua;'),
os.path.join(d, 'share', 'lua', version, '?', 'init.lua;;'),
),
),
(
'LUA_CPATH',
(os.path.join(d, 'lib', 'lua', version, f'?.{so_ext};;'),),
),
)
def _envdir(prefix: Prefix) -> str: # pragma: win32 no cover
directory = helpers.environment_dir(ENVIRONMENT_DIR, C.DEFAULT)
return prefix.path(directory)
@contextlib.contextmanager # pragma: win32 no cover
def in_env(prefix: Prefix) -> Generator[None, None, None]:
with envcontext(get_env_patch(_envdir(prefix))):
yield
def install_environment(
prefix: Prefix,
version: str,
additional_dependencies: Sequence[str],
) -> None: # pragma: win32 no cover
helpers.assert_version_default('lua', version)
envdir = _envdir(prefix)
with clean_path_on_failure(envdir):
with in_env(prefix):
# luarocks doesn't bootstrap a tree prior to installing
# so ensure the directory exists.
os.makedirs(envdir, exist_ok=True)
# Older luarocks (e.g., 2.4.2) expect the rockspec as an arg
for rockspec in prefix.star('.rockspec'):
make_cmd = ('luarocks', '--tree', envdir, 'make', rockspec)
helpers.run_setup_cmd(prefix, make_cmd)
# luarocks can't install multiple packages at once
# so install them individually.
for dependency in additional_dependencies:
cmd = ('luarocks', '--tree', envdir, 'install', dependency)
helpers.run_setup_cmd(prefix, cmd)
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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