From b4b8656bf38a50bf7bd8d46e9df06348d7fb9d21 Mon Sep 17 00:00:00 2001
From: Peter Corke <peter.i.corke@gmail.com>
Date: Mon, 14 Sep 2026 17:28:46 +0200
Subject: [PATCH] ci: dependabot version updates + auto-merge parity

Brings pgraph-python in line with RTB/MVTB/bdsim: a dependabot.yml
(github-actions ecosystem), an auto-merge workflow for patch/minor
bumps, and an all-tests-passed gate job branch protection can require.
---
 .github/dependabot.yml                      |  8 +++++++
 .github/workflows/ci.yml                    | 13 +++++++++++
 .github/workflows/dependabot-auto-merge.yml | 25 +++++++++++++++++++++
 3 files changed, 46 insertions(+)
 create mode 100644 .github/dependabot.yml
 create mode 100644 .github/workflows/dependabot-auto-merge.yml

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 00000000..d4065d68
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,8 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    labels:
+      - "dependencies"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b1bb88a5..e2bf3f75 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,6 +48,19 @@ jobs:
         continue-on-error: true
         run: mypy src/pgraph/PGraph.py
 
+  all-tests-passed:
+    name: All tests passed
+    needs: unittest
+    runs-on: ubuntu-latest
+    if: always()
+    steps:
+      - name: Check test matrix result
+        run: |
+          if [ "${{ needs.unittest.result }}" != "success" ]; then
+            echo "test matrix did not succeed: ${{ needs.unittest.result }}"
+            exit 1
+          fi
+
   codecov:
     needs: unittest
     runs-on: ubuntu-latest
diff --git a/.github/workflows/dependabot-auto-merge.yml b/.github/workflows/dependabot-auto-merge.yml
new file mode 100644
index 00000000..8de7f45f
--- /dev/null
+++ b/.github/workflows/dependabot-auto-merge.yml
@@ -0,0 +1,25 @@
+name: Dependabot auto-merge
+
+on: pull_request
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v3
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+
+      - name: Enable auto-merge for patch/minor bumps
+        if: ${{ steps.metadata.outputs.update-type == 'version-update:semver-patch' || steps.metadata.outputs.update-type == 'version-update:semver-minor' }}
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}