Fix offline bundle verification

offline/downloads/magisk.version

@@ -1 +1 @@
-b149cd26
+b149cd26

verify_offline_bundle.py

@@ -2,12 +2,15 @@
 
 import hashlib
 import json
+import shutil
+import subprocess
 from pathlib import Path
 import sys
 
 
 ROOT = Path(__file__).resolve().parent
 MANIFEST = ROOT / "offline" / "manifest.json"
+BASE_IMAGE = "redroid/redroid:13.0.0-latest"
 
 
 def digest(path, algorithm):
@@ -18,12 +21,42 @@ def digest(path, algorithm):
     return hasher.hexdigest()
 
 
+def runtime_available(runtime):
+    return shutil.which(runtime) is not None
+
+
+def local_base_image_present():
+    for runtime in ("docker", "podman"):
+        if not runtime_available(runtime):
+            continue
+        result = subprocess.run(
+            [runtime, "image", "inspect", BASE_IMAGE],
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+            check=False,
+        )
+        if result.returncode == 0:
+            return True, runtime
+    return False, ""
+
+
 def main():
     manifest = json.loads(MANIFEST.read_text(encoding="utf-8"))
     failures = []
+    base_image_present, base_runtime = local_base_image_present()
     for entry in manifest["artifacts"]:
         path = ROOT / entry["relative_path"]
+        if path.name == "redroid-redroid-13.0.0-latest.tar" and base_image_present:
+            print("SKIP {} ({} already present locally)".format(entry["relative_path"], BASE_IMAGE))
+            continue
         if not path.is_file():
+            if path.name == "redroid-redroid-13.0.0-latest.tar":
+                failures.append(
+                    "{} missing (and {} not found in local {} storage)".format(
+                        entry["relative_path"], BASE_IMAGE, base_runtime or "docker/podman"
+                    )
+                )
+                continue
             failures.append("{} missing".format(entry["relative_path"]))
             continue
         if path.stat().st_size != entry["size"]: