Merge pull request #297 from roundcube/update.sh-fix-for-no-changes

.github/workflows/update-sh.yml

@@ -24,16 +24,17 @@ jobs:
     - name: Run update.sh script
       run: ./update.sh
     - name: Commit files
+      env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
-        BRANCH="changes-from-update.sh-$(date +'%Y-%m-%d')"
-        git show-ref --quiet "$BRANCH" && { "ERROR: Branch $BRANCH already exists";  exit 1; }
+        # Exit early if no changes are present.
+        test $(git status --porcelain | wc -l) -gt 0 || { echo "No changes to commit, happily cancelling this script."; exit 0; }
+        # Use a distinct branch-name (nano-seconds should be good enough).
+        BRANCH="changes-from-update.sh-$(date -I ns)"
         git switch -C "$BRANCH"
         git config --local user.email "[email protected]"
         git config --local user.name "GitHub Workflow"
         git add -A
-        git commit -m "Update roundcube version (via update.sh)" || echo "Nothing to update"
+        git commit -m "Update roundcube version (via update.sh)"
         git push --set-upstream origin "$BRANCH"
-    - name: Create Pull Request
-      run: gh pr create -B master -H changes-from-update.sh --title 'Changes from update.sh' --body "These are the changes of the automated run of ./update.sh" --assignee pabzm
-      env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        gh pr create -B master -H changes-from-update.sh --title 'Changes from update.sh' --body "These are the changes of the automated run of ./update.sh" --assignee pabzm