added new job prepare-labels

Author: shani34

.github/workflows/backport-assistant.yml

@@ -16,6 +16,35 @@ on:
       - 'release/*.*.x'
 
 jobs:
+  prepare-labels:
+    # Only run if 'backport/all' is present on a merged PR
+    if: github.event.pull_request.merged && contains(github.event.pull_request.labels.*.name, 'backport/all')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Extract Versions and Apply Labels
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+        run: |
+          # 1. Extract version numbers from the HCL file (assuming file is named 'versions.hcl')
+          # This looks for lines like: version "1.22" {
+          # And extracts: 1.22
+          VERSIONS=$(grep -oE 'version "[0-9]+\.[0-9]+"' .release/versions.hcl | cut -d'"' -f2)
+          
+          if [ -z "$VERSIONS" ]; then
+            echo "No versions found in file. Exiting."
+            exit 1
+          fi
+          
+          # 2. Loop through and apply labels
+          for v in $VERSIONS; do
+            echo "Processing version: $v"
+            gh pr edit $PR_NUMBER --add-label "backport/$v"
+            gh pr edit $PR_NUMBER --add-label "backport/ent/$v"
+          done
   backport:
     if: github.event.pull_request.merged
     runs-on: ubuntu-latest
@@ -31,7 +60,8 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.ELEVATED_GITHUB_TOKEN_WORKFLOW }}
           ENABLE_VERSION_MANIFESTS: true
   backport-ent:
-    if: github.event.pull_request.merged && contains(join(github.event.pull_request.labels.*.name), 'backport/ent')
+    if: github.event.pull_request.merged && (contains(join(github.event.pull_request.labels.*.name), 'backport/ent') ||
+      contains(join(github.event.pull_request.labels.*.name), 'backport/all'))
     runs-on: ubuntu-latest
     steps:
       - name: Trigger backport for Enterprise