pre-commit/pre_commit/languages/haskell.py at main · pre-commit/pre-commit · GitHub

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from __future__ import annotations

import contextlib

import os.path

from collections.abc import Generator

from collections.abc import Sequence

from pre_commit import lang_base

from pre_commit.envcontext import envcontext

from pre_commit.envcontext import PatchesT

from pre_commit.envcontext import Var

from pre_commit.errors import FatalError

from pre_commit.prefix import Prefix

ENVIRONMENT_DIR = 'hs_env'

get_default_version = lang_base.basic_get_default_version

health_check = lang_base.basic_health_check

run_hook = lang_base.basic_run_hook

def get_env_patch(target_dir: str) -> PatchesT:

bin_path = os.path.join(target_dir, 'bin')

return (('PATH', (bin_path, os.pathsep, Var('PATH'))),)

@contextlib.contextmanager

def in_env(prefix: Prefix, version: str) -> Generator[None]:

envdir = lang_base.environment_dir(prefix, ENVIRONMENT_DIR, version)

with envcontext(get_env_patch(envdir)):

yield

def install_environment(

prefix: Prefix,

version: str,

additional_dependencies: Sequence[str],

) -> None:

lang_base.assert_version_default('haskell', version)

envdir = lang_base.environment_dir(prefix, ENVIRONMENT_DIR, version)

pkgs = [*prefix.star('.cabal'), *additional_dependencies]

if not pkgs:

raise FatalError('Expected .cabal files or additional_dependencies')

bindir = os.path.join(envdir, 'bin')

os.makedirs(bindir, exist_ok=True)

lang_base.setup_cmd(prefix, ('cabal', 'update'))

lang_base.setup_cmd(

prefix,

(

'cabal', 'install',

'--install-method', 'copy',

'--installdir', bindir,

*pkgs,

)

pre-commit/pre_commit/languages/haskell.py at main · pre-commit/pre-commit · GitHub

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