workflow: push right after rebasing

.gitea/workflows/update-flake.yaml

@@ -2,7 +2,7 @@ name: Update Nix Flake
 
 on:
   schedule:
-    - cron: "30 0 * * *" # daily run
+    - cron: "45 0 * * *" # daily run
   workflow_dispatch: {}
 
 jobs:
@@ -16,10 +16,29 @@ jobs:
           fetch-depth: 0
           ref: flake-updates
 
-      - name: Fetch latest changes and reset branch
+      - name: Git config
+        shell: bash
         run: |
-          git fetch origin main
-          git reset --hard origin/main
+          git config user.name "Gitea Actions"
+          git config user.email "actions@gitea.local"
+
+      - name: Rebase from main branch
+        shell: bash
+        run: |
+            commits_ahead=$(git rev-list --count HEAD..origin/main)
+            echo "Commits ahead: $commits_ahead"
+            git log --oneline -5
+            echo "----------"
+            git log --oneline -5 origin/main
+            echo .
+
+            if [ $commits_ahead -ne 0 ]
+            then
+              git rebase -X theirs origin/main
+              git push --force-with-lease origin flake-updates
+            else
+              echo "Rebase not necessary"
+            fi
 
       - name: Set up Nix
         uses: cachix/install-nix-action@v31
@@ -30,12 +49,9 @@ jobs:
       - name: Commit and push changes
         shell: bash
         run: |
-          git config user.name "Gitea Actions"
-          git config user.email "actions@gitea.local"
           git add flake.lock
-          if git diff --cached --quiet; then
-            echo "No changes to commit."
-          else
+          git status
+          git diff --cached --quiet && echo "No changes to commit." && exit 0
+
           git commit -m "Update flake.lock $(date -I)"
-            git push origin flake-updates
-          fi
+          git push --force-with-lease origin flake-updates