feat: add build preflight and sysroot helpers

2026-05-02 22:09:36 +01:00
parent a15d79209c
commit a7be5be48a
7 changed files with 483 additions and 105 deletions
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+import argparse
+import subprocess
+import sys
+from pathlib import Path
+
+PROJECT_ROOT = Path(__file__).resolve().parents[2]
+
+PATCH_TARGETS = {
+    "kernel": PROJECT_ROOT / "recipes/core/kernel/source",
+    "base": PROJECT_ROOT / "recipes/core/base/source",
+    "relibc": PROJECT_ROOT / "recipes/core/relibc/source",
+    "bootloader": PROJECT_ROOT / "recipes/core/bootloader/source",
+    "installer": PROJECT_ROOT / "recipes/core/installer/source",
+}
+
+
+def run_patch(target: Path, patch_file: Path, reverse: bool) -> bool:
+    cmd = ["patch", "--dry-run", "-p1", "-d", str(target)]
+    if reverse:
+        cmd.insert(1, "-R")
+    with patch_file.open("rb") as handle:
+        proc = subprocess.run(cmd, stdin=handle, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+    return proc.returncode == 0
+
+
+def classify_patch(target: Path, patch_file: Path) -> str:
+    if not target.exists():
+        return "missing_target"
+    if run_patch(target, patch_file, reverse=False):
+        return "applies_cleanly"
+    if run_patch(target, patch_file, reverse=True):
+        return "already_applied"
+    return "drifted_or_obsolete"
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--strict", action="store_true")
+    args = parser.parse_args()
+
+    had_problem = False
+    for label, target in PATCH_TARGETS.items():
+        patch_dir = PROJECT_ROOT / "local/patches" / label
+        if not patch_dir.is_dir():
+            continue
+        for patch_file in sorted(patch_dir.glob("*.patch")):
+            status = classify_patch(target, patch_file)
+            print(f"{label}\t{patch_file.name}\t{status}")
+            if status in {"missing_target", "drifted_or_obsolete"}:
+                had_problem = True
+
+    return 1 if args.strict and had_problem else 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())