gh/actions: copy over stuff from Maple's efforts

Author: thefossguy-ciq

.github/workflows/sync.yml

@@ -8,24 +8,39 @@ on:
 jobs:
   sync:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+         include:
+           - branch: master
+             remote: https://git.kernel.org/pub/scm/linux/security/vulns.git
+             remote_branch: master
+
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      BRANCH: ${{ matrix.branch }}
+      REMOTE: ${{ matrix.remote }}
+      REMOTE_BRANCH: ${{ matrix.remote_branch }}
+
     steps:
       - name: Install git
         run: sudo apt-get install -y git
 
       - name: Check out repository
         uses: actions/checkout@v4
+        with:
+          ref: ${{ env.BRANCH }}
+          path: ${{ env.BRANCH }}
 
       - name: Sync kernel-security-vulns
+        working-directory: ./${{ env.BRANCH }}
         run: |
           set -xeuf -o pipefail
 
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
 
-
-          git remote add upstream https://git.kernel.org/pub/scm/linux/security/vulns.git
+          git remote add upstream ${REMOTE}
           git fetch upstream --tags --quiet
-          git rebase upstream/master
+          git rebase upstream/${REMOTE_BRANCH}
           git push origin --follow-tags