env installation fix

This commit is contained in:
Xuwznln
2026-05-14 18:18:53 +08:00
parent 927c7e95f5
commit 35199eb863
2 changed files with 162 additions and 14 deletions

View File

@@ -10,29 +10,170 @@ import shutil
import sys
_PATCH_MARKER = "# UniLabOS DLL Patch"
_PATCH_END_MARKER = "# End UniLabOS DLL Patch"
# 75 = EX_TEMPFAIL: 临时失败、重试即可,避免与业务退出码冲突
_RESTART_EXIT_CODE = 75
def _build_dll_patch(lib_bin: str, preload_pyd: str = "") -> str:
"""生成一段加在目标文件顶部的 DLL 加载补丁源码。
- 始终把 ``lib_bin`` 加入 DLL 搜索路径,并把 handle 挂在模块属性上,
防止 GC 清掉搜索路径(``os.add_dll_directory`` 的句柄被回收时
目录会被移除)。
- 可选地用 ``ctypes.CDLL`` 预加载一个 .pyd把它的依赖 DLL 提前装入
进程内存,作为 ``rclpy._rclpy_pybind11`` 这类首次加载点的兜底。
"""
# 用 repr() 序列化路径Python 解析 repr 的结果会还原成原始字符串,
# 不需要也不能再叠加 raw-string 前缀(叠了反而会让 \\ 变成两个反斜杠)。
lines = [
_PATCH_MARKER,
"import os as _ulab_os",
f"_ulab_p = {lib_bin!r}",
'if hasattr(_ulab_os, "add_dll_directory") and _ulab_os.path.isdir(_ulab_p):',
" try: _UNILAB_DLL_HANDLE = _ulab_os.add_dll_directory(_ulab_p)",
" except Exception: _UNILAB_DLL_HANDLE = None",
]
if preload_pyd:
lines.extend(
[
"import ctypes as _ulab_ctypes",
f"try: _ulab_ctypes.CDLL({preload_pyd!r})",
"except Exception: pass",
]
)
lines.append(_PATCH_END_MARKER)
return "\n".join(lines) + "\n"
def _apply_dll_patch(file_path: str, lib_bin: str, preload_pyd: str = "") -> bool:
"""把 DLL 补丁前置到 ``file_path``。文件不存在或已打过补丁则返回 False。"""
if not os.path.isfile(file_path):
return False
with open(file_path, "r", encoding="utf-8") as f:
content = f.read()
if _PATCH_MARKER in content:
return False
shutil.copy2(file_path, file_path + ".bak")
with open(file_path, "w", encoding="utf-8") as f:
f.write(_build_dll_patch(lib_bin, preload_pyd) + content)
return True
def _print_restart_banner(patched_files):
"""打印重启提示并以 EX_TEMPFAIL 退出。
- 不使用 ANSI 颜色码Windows 旧版 cmd / PowerShell 5 默认不开 VT 处理,
会把 ``\\033[1;33m`` 当做字面字符显示,反而让用户看不到正文。
- 同时写入 stderr 与 stdout某些上层 launcher / supervisor 只重定向
其中一路,写两遍能保证用户至少看到一份。
- 写入前防御性把流切到 UTF-8 with replace``main.py`` 里已经做过一次,
但本模块也可能被绕过 ``main.py`` 的代码路径直接 importreconfigure
失败也只是退回 errors=replace不影响整体流程。
"""
if sys.platform == "win32":
for _stream in (sys.stdout, sys.stderr):
try:
_stream.reconfigure(encoding="utf-8", errors="replace") # type: ignore[attr-defined]
except (AttributeError, OSError):
pass
bar = "#" * 78
files_lines = [f"[UniLabOS] - {p}" for p in patched_files]
body = "\n".join(
[
"",
bar,
bar,
"##",
"## [UniLabOS] Windows + conda 下检测到 DLL 加载失败,已自动打补丁。",
"## [UniLabOS] DLL load failure detected on Windows + conda;",
"## [UniLabOS] the following files have been auto-patched:",
"##",
*[f"## {line}" for line in files_lines],
"##",
"## [UniLabOS] 当前进程的 rclpy 状态已损坏,补丁需要在新进程才生效。",
"## [UniLabOS] The current process is unusable; the patch only takes",
"## [UniLabOS] effect on a fresh process.",
"##",
"## >>> 请重新运行刚才的命令 / Please re-run the same command. <<<",
"##",
bar,
bar,
"",
]
)
for stream in (sys.stderr, sys.stdout):
try:
stream.write(body)
stream.flush()
except Exception:
try:
print(body, file=stream)
except Exception:
pass
sys.exit(_RESTART_EXIT_CODE)
def patch_rclpy_dll_windows():
"""在 Windows + conda 环境下 rclpy 打 DLL 加载补丁"""
"""在 Windows + conda 环境下修复 rclpy / rosidl typesupport 的 DLL 加载。
背景conda 安装的 ros 系列包,其原生扩展依赖 ``$CONDA_PREFIX/Library/bin``
下的 DLL只有 conda 环境被正确激活、且 PATH 中含 ``Library/bin`` 时,
``os.add_dll_directory`` 才能找到它们。当从快捷方式 / IDE / 子进程 /
没激活的 shell 启动 ``unilab`` 时,会出现 ``DLL load failed``。
本函数会:
1) 修补 ``rclpy/impl/implementation_singleton.py`` —— rclpy 自身的 C 扩展入口;
2) 修补 ``rpyutils/add_dll_directories.py`` —— 所有 ``*_s__rosidl_typesupport_c.pyd``
``geometry_msgs`` / ``std_msgs`` / ``sensor_msgs`` 等)的统一加载入口。
打完补丁后**必须重启进程**才能生效(当前进程的 rclpy 已经发生过
``ImportError``,子模块仍处于损坏状态)。因此函数会主动退出,并在
stdout/stderr 同时打印明显的重启提示,避免用户被后续报错淹没。
"""
if sys.platform != "win32" or not os.environ.get("CONDA_PREFIX"):
return
try:
import rclpy
import rclpy # noqa: F401
return
except ImportError as e:
if not str(e).startswith("DLL load failed"):
return
cp = os.environ["CONDA_PREFIX"]
impl = os.path.join(cp, "Lib", "site-packages", "rclpy", "impl", "implementation_singleton.py")
pyd = glob.glob(os.path.join(cp, "Lib", "site-packages", "rclpy", "_rclpy_pybind11*.pyd"))
if not os.path.exists(impl) or not pyd:
lib_bin = os.path.join(cp, "Library", "bin")
site_packages = os.path.join(cp, "Lib", "site-packages")
if not os.path.isdir(lib_bin):
return
with open(impl, "r", encoding="utf-8") as f:
content = f.read()
lib_bin = os.path.join(cp, "Library", "bin").replace("\\", "/")
patch = f'# UniLabOS DLL Patch\nimport os,ctypes\nos.add_dll_directory("{lib_bin}") if hasattr(os,"add_dll_directory") else None\ntry: ctypes.CDLL("{pyd[0].replace(chr(92),"/")}")\nexcept: pass\n# End Patch\n'
shutil.copy2(impl, impl + ".bak")
with open(impl, "w", encoding="utf-8") as f:
f.write(patch + content)
patched = []
# 1) rclpy 自身的入口
rclpy_impl = os.path.join(site_packages, "rclpy", "impl", "implementation_singleton.py")
rclpy_pyd_matches = glob.glob(os.path.join(site_packages, "rclpy", "_rclpy_pybind11*.pyd"))
rclpy_pyd = rclpy_pyd_matches[0] if rclpy_pyd_matches else ""
if rclpy_pyd and _apply_dll_patch(rclpy_impl, lib_bin, preload_pyd=rclpy_pyd):
patched.append(rclpy_impl)
# 2) rpyutils —— 所有 rosidl typesupport pyd 的加载点;放在 rclpy 之后
# 例geometry_msgs/geometry_msgs_s__rosidl_typesupport_c.pyd
rpyutils_dll = os.path.join(site_packages, "rpyutils", "add_dll_directories.py")
if _apply_dll_patch(rpyutils_dll, lib_bin):
patched.append(rpyutils_dll)
if not patched:
# 已经打过补丁但 rclpy 仍然加载失败:原因不是缺 DLL 搜索路径,
# 不要再次打补丁污染文件,让上层看到真实的 ImportError。
return
_print_restart_banner(patched)
patch_rclpy_dll_windows()

View File

@@ -47,7 +47,10 @@ def _has_uv() -> bool:
def _install_command(installer: str, package: str, upgrade: bool, is_chinese: bool) -> List[str]:
if installer == "uv":
cmd = ["uv", "pip", "install"]
# uv >= 0.5 默认要求虚拟环境,对 conda env 会报 "No virtual environment found"。
# 显式 --python sys.executable 让 uv 把当前解释器conda/venv/system 都行)
# 视为目标环境,绕开 venv 检测。
cmd = ["uv", "pip", "install", "--python", sys.executable]
if upgrade:
cmd.append("--upgrade")
cmd.append(package)
@@ -89,7 +92,11 @@ def _print_manual_git_install_hint(requirement: str) -> None:
return
repo_dir = _repo_dir_name(git_url)
install_cmd = "uv pip install -e ." if _has_uv() else f"{sys.executable} -m pip install -e ."
install_cmd = (
f'uv pip install --python "{sys.executable}" -e .'
if _has_uv()
else f"{sys.executable} -m pip install -e ."
)
if _is_chinese_locale() and not _has_uv():
install_cmd += " -i https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple"