update git shim

2026-05-01 02:20:49 +00:00
commit 283a447806
3 changed files with 147 additions and 0 deletions
--- a/git/setup.py
+++ b/git/setup.py
@@ -0,0 +1,107 @@
+"""Shim setup.py: downloads pre-built wheels from GitHub Releases at install time."""
+import os
+import platform
+import time
+import zipfile
+from io import BytesIO
+from urllib.error import URLError
+from urllib.request import urlopen
+
+try:
+  import tomllib
+except ImportError:
+  import tomli as tomllib
+
+from setuptools import setup
+from setuptools.command.build_py import build_py
+
+_HERE = os.path.dirname(os.path.abspath(__file__))
+with open(os.path.join(_HERE, "pyproject.toml"), "rb") as _f:
+  _cfg = tomllib.load(_f)
+
+REPO_URL = _cfg["tool"]["shim"]["repo_url"]
+TAG = _cfg["tool"]["shim"]["tag"]
+DATADIR = _cfg["tool"]["shim"]["datadir"]
+VERSION = _cfg["project"]["version"]
+MODULE = _cfg["project"]["name"].replace("-", "_")
+
+# all top-level packages bundled in this wheel (e.g. acados + casadi).
+# `packages` may be a flat list or a dict with find.include patterns.
+_pkgs = _cfg.get("tool", {}).get("setuptools", {}).get("packages", [f"{MODULE}*"])
+if isinstance(_pkgs, list):
+  _INCLUDE = _pkgs
+elif isinstance(_pkgs, dict):
+  _INCLUDE = _pkgs.get("find", {}).get("include", [f"{MODULE}*"])
+else:
+  _INCLUDE = [f"{MODULE}*"]
+TOP_PACKAGES = sorted({p.rstrip("*").rstrip("/") for p in _INCLUDE if p.rstrip("*").rstrip("/")})
+
+PLATFORM_MAP = {
+  ("Linux", "x86_64"): "linux_x86_64",
+  ("Linux", "aarch64"): "linux_aarch64",
+  ("Darwin", "arm64"): "macosx_11_0_arm64",
+}
+
+
+class InstallPrebuilt(build_py):
+  def run(self):
+    module_dir = os.path.join(_HERE, MODULE)
+    data_dir = os.path.join(module_dir, DATADIR)
+
+    if not os.path.exists(os.path.join(data_dir, "bin")):
+      key = (platform.system(), platform.machine())
+      plat = PLATFORM_MAP.get(key)
+      if plat is None:
+        raise RuntimeError(f"unsupported platform: {key}")
+
+      whl_names = [
+        f"{MODULE}-{VERSION}-py3-none-{plat}.whl",
+        f"{MODULE}-{VERSION}-py3-none-any.whl",
+      ]
+
+      raw = None
+      for whl_name in whl_names:
+        url = f"{REPO_URL}/releases/download/{TAG}/{whl_name}"
+        print(f"Downloading {url} ...")
+        for attempt in range(3):
+          try:
+            raw = urlopen(url, timeout=60).read()
+            break
+          except (URLError, OSError) as e:
+            if attempt == 2:
+              if whl_name == whl_names[-1]:
+                raise
+              break
+            wait = 2 ** attempt
+            print(f"Download failed ({e}), retrying in {wait}s ...")
+            time.sleep(wait)
+        if raw is not None:
+          break
+
+      print("Extracting wheel ...")
+      with zipfile.ZipFile(BytesIO(raw)) as zf:
+        purelib_data = f"{MODULE}-{VERSION}.data/purelib/"
+        for info in zf.infolist():
+          if info.is_dir():
+            continue
+          name = info.filename
+          if name.startswith(purelib_data):
+            rel = name[len(purelib_data):]
+          else:
+            rel = name
+          if "/" not in rel:
+            continue
+          top = rel.split("/", 1)[0]
+          if top not in TOP_PACKAGES:
+            continue
+          dest = os.path.join(_HERE, rel)
+          os.makedirs(os.path.dirname(dest), exist_ok=True)
+          with open(dest, "wb") as f:
+            f.write(zf.read(info))
+          if info.external_attr >> 16 & 0o111:
+            os.chmod(dest, 0o755)
+
+    super().run()
+
+
+setup(cmdclass={"build_py": InstallPrebuilt})