mirror of
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138 lines
4.2 KiB
Python
138 lines
4.2 KiB
Python
"""Utilities that are imported by multiple scripts in the tests directory."""
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from __future__ import annotations
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import os
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import re
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import subprocess
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import sys
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import venv
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from functools import lru_cache
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from pathlib import Path
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from typing import Any, NamedTuple
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from typing_extensions import Annotated
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import pathspec
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try:
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from termcolor import colored as colored # pyright: ignore[reportGeneralTypeIssues]
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except ImportError:
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def colored(text: str, color: str | None = None, **kwargs: Any) -> str: # type: ignore[misc]
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return text
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# A backport of functools.cache for Python <3.9
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# This module is imported by mypy_test.py, which needs to run on 3.8 in CI
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cache = lru_cache(None)
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def strip_comments(text: str) -> str:
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return text.split("#")[0].strip()
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def print_error(error: str, end: str = "\n", fix_path: tuple[str, str] = ("", "")) -> None:
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error_split = error.split("\n")
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old, new = fix_path
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for line in error_split[:-1]:
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print(colored(line.replace(old, new), "red"))
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print(colored(error_split[-1], "red"), end=end)
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def print_success_msg() -> None:
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print(colored("success", "green"))
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# ====================================================================
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# Dynamic venv creation
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# ====================================================================
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class VenvInfo(NamedTuple):
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pip_exe: Annotated[str, "A path to the venv's pip executable"]
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python_exe: Annotated[str, "A path to the venv's python executable"]
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@staticmethod
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def of_existing_venv(venv_dir: Path) -> VenvInfo:
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if sys.platform == "win32":
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pip = venv_dir / "Scripts" / "pip.exe"
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python = venv_dir / "Scripts" / "python.exe"
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else:
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pip = venv_dir / "bin" / "pip"
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python = venv_dir / "bin" / "python"
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return VenvInfo(str(pip), str(python))
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def make_venv(venv_dir: Path) -> VenvInfo:
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try:
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venv.create(venv_dir, with_pip=True, clear=True)
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except subprocess.CalledProcessError as e:
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if "ensurepip" in e.cmd and b"KeyboardInterrupt" not in e.stdout.splitlines():
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print_error(
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"stubtest requires a Python installation with ensurepip. "
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"If on Linux, you may need to install the python3-venv package."
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)
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raise
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return VenvInfo.of_existing_venv(venv_dir)
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@cache
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def get_mypy_req() -> str:
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with open("requirements-tests.txt", encoding="UTF-8") as requirements_file:
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return next(strip_comments(line) for line in requirements_file if "mypy" in line)
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# ====================================================================
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# Parsing the stdlib/VERSIONS file
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# ====================================================================
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VERSIONS_RE = re.compile(r"^([a-zA-Z_][a-zA-Z0-9_.]*): ([23]\.\d{1,2})-([23]\.\d{1,2})?$")
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# ====================================================================
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# Getting test-case directories from package names
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# ====================================================================
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class PackageInfo(NamedTuple):
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name: str
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test_case_directory: Path
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@property
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def is_stdlib(self) -> bool:
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return self.name == "stdlib"
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def testcase_dir_from_package_name(package_name: str) -> Path:
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return Path("stubs", package_name, "@tests/test_cases")
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def get_all_testcase_directories() -> list[PackageInfo]:
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testcase_directories: list[PackageInfo] = []
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for package_name in os.listdir("stubs"):
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potential_testcase_dir = testcase_dir_from_package_name(package_name)
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if potential_testcase_dir.is_dir():
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testcase_directories.append(PackageInfo(package_name, potential_testcase_dir))
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return [PackageInfo("stdlib", Path("test_cases"))] + sorted(testcase_directories)
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# ====================================================================
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# Parsing .gitignore
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# ====================================================================
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@cache
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def get_gitignore_spec() -> pathspec.PathSpec:
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with open(".gitignore", encoding="UTF-8") as f:
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return pathspec.PathSpec.from_lines("gitwildmatch", f.readlines())
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def spec_matches_path(spec: pathspec.PathSpec, path: Path) -> bool:
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normalized_path = path.as_posix()
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if path.is_dir():
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normalized_path += "/"
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return spec.match_file(normalized_path)
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