mirror of
https://github.com/bytedance/deer-flow.git
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b1dad2480a
* test(scripts): resolve Git Bash instead of the WSL launcher for Windows shell-script tests * test(scripts): pin Windows shell-discovery rules in unit tests and prefer Git's sh.exe for POSIX-sh tests
123 lines
4.6 KiB
Python
123 lines
4.6 KiB
Python
"""Locate a shell that can actually run the repo's POSIX shell scripts.
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On POSIX hosts ``bash``/``sh`` from PATH are fine. On Windows the suite must
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run Git Bash (MSYS2): the WSL launcher at ``%SystemRoot%\\System32\\bash.exe``
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and the Microsoft Store alias stubs under ``WindowsApps`` also answer to the
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name ``bash`` — and CreateProcess searches System32 before PATH, so even a
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literal ``["bash", ...]`` argv with Git Bash first on PATH still reaches
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WSL — but neither can run repo scripts against Windows checkout paths. The
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discovery below mirrors what ``scripts/run-with-git-bash.cmd`` already does
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for the Makefile.
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"""
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from __future__ import annotations
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import os
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import shutil
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from pathlib import Path
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import pytest
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def _script_bash_candidates(git: str | None, program_files: str | None, path_bash: str | None) -> list[Path]:
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"""Build the ordered bash candidate list for Windows hosts."""
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candidates: list[Path] = []
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if git is not None:
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# Git for Windows layout: <root>/cmd/git.exe (or <root>/bin/git.exe)
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# both resolve to <root>/bin/bash.exe two levels up from git's parent.
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candidates.append(Path(git).resolve().parent.parent / "bin" / "bash.exe")
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if program_files:
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candidates.append(Path(program_files) / "Git" / "bin" / "bash.exe")
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if path_bash is not None:
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candidates.append(Path(path_bash))
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return candidates
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def _script_sh_candidates(git: str | None, program_files: str | None) -> list[Path]:
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"""Build the ordered POSIX-sh candidate list for Windows hosts.
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Git for Windows ships a real ``sh.exe`` at ``<root>/bin/sh.exe`` (and
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``<root>/usr/bin/sh.exe``); preferring it over bash lets ``#!/bin/sh``
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scripts run under an actual sh, like the POSIX CI legs.
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"""
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candidates: list[Path] = []
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if git is not None:
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git_root = Path(git).resolve().parent.parent
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candidates.append(git_root / "bin" / "sh.exe")
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candidates.append(git_root / "usr" / "bin" / "sh.exe")
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if program_files:
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program_files_git = Path(program_files) / "Git"
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candidates.append(program_files_git / "bin" / "sh.exe")
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candidates.append(program_files_git / "usr" / "bin" / "sh.exe")
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return candidates
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def _first_runnable_shell(candidates: list[Path], system_root: Path) -> str | None:
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"""Return the first candidate that is a real shell, rejecting stub launchers.
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The WSL launcher lives in System32/SysWOW64 and the Microsoft Store alias
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stubs live under WindowsApps; neither is an MSYS2 shell that can run repo
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scripts against Windows checkout paths.
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"""
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rejected_parents = (system_root / "System32", system_root / "SysWOW64")
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for candidate in candidates:
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try:
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resolved = candidate.resolve()
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except OSError:
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continue
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if not resolved.is_file():
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continue
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if any(parent in resolved.parents for parent in rejected_parents):
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continue
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if "WindowsApps" in resolved.parts:
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continue
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return str(resolved)
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return None
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def find_script_bash() -> str | None:
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"""Return a bash able to run the repo's shell scripts, or ``None``."""
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if os.name != "nt":
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return shutil.which("bash")
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candidates = _script_bash_candidates(
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git=shutil.which("git"),
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program_files=os.environ.get("ProgramFiles"),
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path_bash=shutil.which("bash"),
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)
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system_root = Path(os.environ.get("SystemRoot", r"C:\Windows"))
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return _first_runnable_shell(candidates, system_root)
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def require_script_bash() -> str:
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"""Return :func:`find_script_bash`'s result, skipping the test when absent."""
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bash = find_script_bash()
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if bash is None:
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pytest.skip("repo shell-script tests need Git Bash on Windows")
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return bash
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def find_posix_sh() -> str | None:
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"""Return a shell able to run the repo's POSIX-sh scripts.
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Plain ``sh`` on POSIX hosts. On Windows no ``sh`` exists on PATH outside
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an MSYS2 installation, so prefer the real ``sh.exe`` shipped with Git for
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Windows and fall back to Git Bash when it is absent.
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"""
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if os.name != "nt":
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return shutil.which("sh")
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candidates = _script_sh_candidates(
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git=shutil.which("git"),
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program_files=os.environ.get("ProgramFiles"),
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)
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system_root = Path(os.environ.get("SystemRoot", r"C:\Windows"))
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return _first_runnable_shell(candidates, system_root) or find_script_bash()
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def require_posix_sh() -> str:
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"""Return :func:`find_posix_sh`'s result, skipping the test when absent."""
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sh = find_posix_sh()
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if sh is None:
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pytest.skip("repo shell-script tests need Git Bash on Windows")
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return sh
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