linux-hwe-6.17: clean up & standardize annotations among flavors

helpers/DATA/kernel/apply_policies.py

@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+import sys
+import json
+import subprocess
+import os
+
+def set_annotation(config, arch, flavour, value, annotations_file):
+    """Executes the Debian script to enforce a specific kernel configuration."""
+
+    cmd = [
+        "python3",
+        "debian/scripts/misc/annotations",
+        "--file", annotations_file,
+        "--arch", arch,
+        "--flavour", flavour,
+        "--config", config,
+        "--write", value
+    ]
+
+    print(f"Setting {config} for {arch} ({flavour}) to '{value}'")
+
+    try:
+        subprocess.run(cmd, check=True, stdout=subprocess.DEVNULL)
+    except subprocess.CalledProcessError:
+        print(f"  [ERROR] Failed to apply {config} on {arch} ({flavour})", file=sys.stderr)
+
+def main():
+    # Fetch the environment variable exported by helper
+    target_file = os.environ.get("KERNEL_CONFIG_ANNOTATIONS")
+
+    # Fail fast if the annotations file is not defined
+    if not target_file:
+        print("[FATAL ERROR] KERNEL_CONFIG_ANNOTATIONS environment variable is not set.", file=sys.stderr)
+        print("Aborting to prevent modifying the wrong configuration file.", file=sys.stderr)
+        sys.exit(1)
+
+    print(f"[INFO] Target annotations file: {target_file}")
+
+    # Read and parse the JSON policy from stdin
+    try:
+        policy_dict = json.load(sys.stdin)
+    except json.JSONDecodeError as e:
+        print(f"[FATAL ERROR] Invalid JSON policy format: {e}", file=sys.stderr)
+        sys.exit(1)
+
+    # Process the nested dictionary
+    for config, archs in policy_dict.items():
+        for key, value in archs.items():
+            
+            # Check if the key contains a flavour delimiter (e.g., "arm64/generic-64k")
+            if "/" in key:
+                arch, flavour = key.split("/", 1)
+                set_annotation(config, arch, flavour, value, target_file)
+            
+            # Backward compatibility for nested dicts (just in case)
+            elif isinstance(value, dict):
+                for flavour_nested, val_nested in value.items():
+                    set_annotation(config, key, flavour_nested, val_nested, target_file)
+            
+            # If it's just a plain string without a slash, default to 'generic'
+            else:
+                set_annotation(config, key, "generic", value, target_file)
+
+if __name__ == "__main__":
+    main()