Update kernel versions

Add 6.8 stable and 6.9-rc. This will allow to use 6.8 in cilium/ebpf CI
instead of 6.7 which is EOL.

Also update update-version.sh to filter out EOL releases. Turns out this
is easier to achieve using https://www.kernel.org/releases.json as a
source and using just jq for JSON transformation.

Signed-off-by: Tobias Klauser <[email protected]>

README.md

@@ -13,7 +13,7 @@ $ ./buildx.sh 6.1 amd64 vmlinux --tag foo:vmlinux
 
 ## Updating versions
 
-Use `update-version.sh` (requires `awk`, `jq` and `xmllint`):
+Use `update-version.sh` (requires `jq`):
 
 ```shell
 ./update-versions.sh

update-versions.sh

@@ -1,11 +1,8 @@
 #!/bin/bash
 # Fetch the releases encoded in the kernel.org homepage and store them as a JSON.
 
-exec curl -sL https://www.kernel.org/ |
-xmllint --html --xpath "//table[@id='releases']/tr[.//a[contains(text(), 'tarball')]]/td/strong/text() | //table[@id='releases']/tr[.//a[contains(text(), 'tarball')]]/td[1]/text()" - 2>/dev/null |
-awk '
-  BEGIN { ORS=""; print "[" }
-  /:/ { gsub(/:/, ""); type=$0; getline; version=$0; print (NR>2?",":"") "{\"version\": \"" version "\", \"type\": \"" type "\"}" }
-  END { print "]" }
-' |
-jq '.' | tee versions.json
+exec curl -sL https://www.kernel.org/releases.json |
+	jq '[ .releases[] |
+		select(.iseol == false and .moniker != "linux-next") |
+		{ "version" : .version, "type" : .moniker }]' |
+	tee versions.json

versions.json

@@ -1,34 +1,34 @@
 [
   {
-    "version": "6.8-rc4",
+    "version": "6.9-rc3",
     "type": "mainline"
   },
   {
-    "version": "6.7.4",
+    "version": "6.8.4",
     "type": "stable"
   },
   {
-    "version": "6.6.16",
+    "version": "6.6.25",
     "type": "longterm"
   },
   {
-    "version": "6.1.77",
+    "version": "6.1.84",
     "type": "longterm"
   },
   {
-    "version": "5.15.148",
+    "version": "5.15.153",
     "type": "longterm"
   },
   {
-    "version": "5.10.209",
+    "version": "5.10.214",
     "type": "longterm"
   },
   {
-    "version": "5.4.268",
+    "version": "5.4.273",
     "type": "longterm"
   },
   {
-    "version": "4.19.306",
+    "version": "4.19.311",
     "type": "longterm"
   }
 ]