From 992ee014a3fd367a8e7698c75d8672ec04ef3f3c Mon Sep 17 00:00:00 2001
From: Dominik Roth <dominik.roth.dev@gmail.com>
Date: Thu, 18 Jan 2024 11:01:13 +0100
Subject: [PATCH] Ensure all PRs to release to be tagged. Will be enforced via
 branch protection.

---
 .github/workflows/ensure-release-tagged.yaml | 26 ++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 .github/workflows/ensure-release-tagged.yaml

diff --git a/.github/workflows/ensure-release-tagged.yaml b/.github/workflows/ensure-release-tagged.yaml
new file mode 100644
index 0000000..1b79d51
--- /dev/null
+++ b/.github/workflows/ensure-release-tagged.yaml
@@ -0,0 +1,26 @@
+name: Ensure Tagged Commits on Release
+
+on:
+  pull_request:
+    branches:
+      - release
+
+jobs:
+  check_tag:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out code
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: Check if base commit of PR is tagged
+      run: |
+        BASE_COMMIT=$(jq -r .pull_request.base.sha < "$GITHUB_EVENT_PATH")
+        TAG=$(git tag --contains $BASE_COMMIT)
+        if [ -z "$TAG" ]; then
+          echo "Base commit of PR is not tagged. PRs onto release must be tagged with the version number."
+          exit 1
+        fi
+        echo "Base commit of PR is tagged. Check passed."
+