T8218: Updated workflows for pullrequest_target policy change

Author: kumvijaya

.github/workflows/trigger-rebuild-repo-package.yml

@@ -6,25 +6,33 @@ on:
       - closed
     branches:
       - current
+      - circinus
+      - sagitta
   workflow_dispatch:
 
 jobs:
-  get_repo_name:
+  setup-vars:
     runs-on: ubuntu-latest
     outputs:
-      PACKAGE_NAME: ${{ steps.package_name.outputs.PACKAGE_NAME }}
+      PACKAGE_NAME: ${{ steps.vars.outputs.PACKAGE_NAME }}
+      BRANCH: ${{ steps.vars.outputs.BRANCH }}
     steps:
       - name: Set variables
-        id: package_name
+        id: vars
         run: |
           echo "PACKAGE_NAME=$(basename ${{ github.repository }})" >> $GITHUB_OUTPUT
+          if [ "${{ github.event_name }}" = "pull_request_target" ]; then
+            echo "BRANCH=${{ github.event.pull_request.base.ref }}" >> $GITHUB_OUTPUT
+          else
+            echo "BRANCH=${{ github.ref_name }}" >> $GITHUB_OUTPUT
+          fi
 
   trigger-build:
-    needs: get_repo_name
+    needs: setup-vars
     uses: vyos/.github/.github/workflows/trigger-rebuild-repo-package.yml@current
     with:
-      branch: ${{ github.ref_name }}
-      package_name: ${{ needs.get_repo_name.outputs.PACKAGE_NAME }}
+      branch: ${{ needs.setup-vars.outputs.BRANCH }}
+      package_name: ${{ needs.setup-vars.outputs.PACKAGE_NAME }}
     secrets:
       REMOTE_OWNER: ${{ secrets.REMOTE_OWNER }}
       REMOTE_REUSE_REPO: ${{ secrets.REMOTE_REUSE_REPO }}