From e3829cc5d067599ba8416821f67a936b8b3dd368 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 3 Nov 2020 07:17:38 +0100 Subject: Merging upstream version 2.8.2. Signed-off-by: Daniel Baumann --- pre_commit/languages/helpers.py | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'pre_commit/languages/helpers.py') diff --git a/pre_commit/languages/helpers.py b/pre_commit/languages/helpers.py index 01c65ab..29138fd 100644 --- a/pre_commit/languages/helpers.py +++ b/pre_commit/languages/helpers.py @@ -1,6 +1,7 @@ import multiprocessing import os import random +import re from typing import Any from typing import List from typing import Optional @@ -10,6 +11,7 @@ from typing import Tuple from typing import TYPE_CHECKING import pre_commit.constants as C +from pre_commit import parse_shebang from pre_commit.hook import Hook from pre_commit.prefix import Prefix from pre_commit.util import cmd_output_b @@ -20,6 +22,31 @@ if TYPE_CHECKING: FIXED_RANDOM_SEED = 1542676187 +SHIMS_RE = re.compile(r'[/\\]shims[/\\]') + + +def exe_exists(exe: str) -> bool: + found = parse_shebang.find_executable(exe) + if found is None: # exe exists + return False + + homedir = os.path.expanduser('~') + try: + common: Optional[str] = os.path.commonpath((found, homedir)) + except ValueError: # on windows, different drives raises ValueError + common = None + + return ( + # it is not in a /shims/ directory + not SHIMS_RE.search(found) and + ( + # the homedir is / (docker, service user, etc.) + os.path.dirname(homedir) == homedir or + # the exe is not contained in the home directory + common != homedir + ) + ) + def run_setup_cmd(prefix: Prefix, cmd: Tuple[str, ...]) -> None: cmd_output_b(*cmd, cwd=prefix.prefix_dir) -- cgit v1.2.3