build: profiles.json: add kernel version information

Currently downstream tools like ASU lack information about kernel
version to find out the relevant kmod build folder on downloads server.

So lets fix it by providing a new `linux_kernel` JSON array which would
for the start provide Linux kernel version, revision and vermagic
information.

  "linux_kernel": {
     "release": "1",
     "vermagic": "b57450c07d3a786158c3601fc5cee57d",
     "version": "6.6.61"
   },

Fixes: openwrt/openwrt#17036
Fixes: efahl/owut#9
Co-developed-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Eric Fahlgren <ericfahlgren@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17042
Signed-off-by: Petr Štetiar <ynezz@true.cz>
(cherry picked from commit c857145e034f623e31ab2028049a547ecd94ce85)

diff --git a/scripts/json_overview_image_info.py b/scripts/json_overview_image_info.py
index 0d2cf7f1ef5134d9b9edcc01fcde205844b4e268..96921c27430a86b08048442a63b978c28a23ef95 100755 (executable)
--- a/scripts/json_overview_image_info.py
+++ b/scripts/json_overview_image_info.py
@@ -47,7 +47,13 @@ for device_id, profile in output.get("profiles", {}).items():
 
 
 if output:
-    default_packages, output["arch_packages"] = run(
+    (
+        default_packages,
+        output["arch_packages"],
+        linux_version,
+        linux_release,
+        linux_vermagic,
+    ) = run(
         [
             "make",
             "--no-print-directory",
@@ -55,6 +61,9 @@ if output:
             "target/linux/",
             "val.DEFAULT_PACKAGES",
             "val.ARCH_PACKAGES",
+            "val.LINUX_VERSION",
+            "val.LINUX_RELEASE",
+            "val.LINUX_VERMAGIC",
             "V=s",
         ],
         stdout=PIPE,
@@ -64,7 +73,11 @@ if output:
     ).stdout.splitlines()
 
     output["default_packages"] = sorted(default_packages.split())
-
+    output["linux_kernel"] = {
+        "version": linux_version,
+        "release": linux_release,
+        "vermagic": linux_vermagic,
+    }
     output_path.write_text(json.dumps(output, sort_keys=True, separators=(",", ":")))
 else:
     print("JSON info file script could not find any JSON files for target")