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# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
# For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
# Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
from __future__ import annotations
import contextlib
import os
import sys
from collections.abc import Iterator, Sequence
from pathlib import Path
from astroid import builder
from astroid.manager import AstroidManager
from astroid.nodes.scoped_nodes import Module
DATA_DIR = Path("testdata") / "python3"
RESOURCE_PATH = Path(__file__).parent / DATA_DIR / "data"
def find(name: str) -> str:
return os.path.normpath(os.path.join(os.path.dirname(__file__), DATA_DIR, name))
def build_file(path: str, modname: str | None = None) -> Module:
return builder.AstroidBuilder(AstroidManager()).file_build(find(path), modname)
class SysPathSetup:
def setUp(self) -> None:
sys.path.insert(0, find(""))
def tearDown(self) -> None:
del sys.path[0]
datadir = find("")
for key in list(sys.path_importer_cache):
if key.startswith(datadir):
del sys.path_importer_cache[key]
def _augment_sys_path(additional_paths: Sequence[str]) -> list[str]:
original = list(sys.path)
changes = []
seen = set()
for additional_path in additional_paths:
if additional_path not in seen:
changes.append(additional_path)
seen.add(additional_path)
sys.path[:] = changes + sys.path
return original
@contextlib.contextmanager
def augmented_sys_path(additional_paths: Sequence[str]) -> Iterator[None]:
"""Augment 'sys.path' by adding entries from additional_paths."""
original = _augment_sys_path(additional_paths)
try:
yield
finally:
sys.path[:] = original
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