From cbe3761a6a70502cf785c3aed9f2df97f7b05f30 Mon Sep 17 00:00:00 2001
From: Marcus Messer <marcus@marcusm.co.uk>
Date: Mon, 25 May 2026 13:21:28 +0100
Subject: [PATCH 1/2] Added GitHub Actions release workflow and updated build
 workflow to trigger on version tags

---
 .github/workflows/build.yml   |  2 ++
 .github/workflows/release.yml | 68 +++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)
 create mode 100644 .github/workflows/release.yml

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f1c3fc4..707aed9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,6 +6,8 @@ on:
       - "README.md"
     branches:
       - main
+    tags:
+      - 'v*.*.*'
   pull_request:
   workflow_dispatch:
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..a8efb59
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,68 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - prod
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version to release (e.g. 1.2.3, leave empty to auto-bump patch)'
+        required: false
+        type: string
+
+jobs:
+  release:
+    name: Create Release
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Check for existing tag on HEAD
+        id: idempotency
+        run: |
+          EXISTING=$(git describe --exact-match --tags HEAD 2>/dev/null || true)
+          if echo "$EXISTING" | grep -qE '^v[0-9]+\.[0-9]+\.[0-9]+$'; then
+            echo "HEAD is already tagged as $EXISTING — skipping release."
+            echo "skip=true" >> $GITHUB_OUTPUT
+          else
+            echo "skip=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Determine version
+        if: steps.idempotency.outputs.skip == 'false'
+        id: version
+        run: |
+          if [ -n "${{ inputs.version }}" ]; then
+            NEW_VERSION="v${{ inputs.version }}"
+          else
+            LATEST=$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0")
+            MAJOR=$(echo "${LATEST#v}" | cut -d. -f1)
+            MINOR=$(echo "${LATEST#v}" | cut -d. -f2)
+            PATCH=$(echo "${LATEST#v}" | cut -d. -f3)
+            NEW_VERSION="v${MAJOR}.${MINOR}.$((PATCH + 1))"
+          fi
+          echo "version=${NEW_VERSION}" >> $GITHUB_OUTPUT
+          echo "Releasing ${NEW_VERSION}"
+
+      - name: Create and push tag
+        if: steps.idempotency.outputs.skip == 'false'
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git tag ${{ steps.version.outputs.version }}
+          git push origin ${{ steps.version.outputs.version }}
+
+      - name: Create GitHub Release
+        if: steps.idempotency.outputs.skip == 'false'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh release create ${{ steps.version.outputs.version }} \
+            --generate-notes \
+            --title "Release ${{ steps.version.outputs.version }}"

From e5ca6c06ad1cc939acd81b044b3b45e164b1c753 Mon Sep 17 00:00:00 2001
From: Marcus Messer <marcus@marcusm.co.uk>
Date: Mon, 25 May 2026 13:28:09 +0100
Subject: [PATCH 2/2] Triggered evaluation-function-base release from release
 workflow

---
 .github/workflows/release.yml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a8efb59..5e878c6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -66,3 +66,12 @@ jobs:
           gh release create ${{ steps.version.outputs.version }} \
             --generate-notes \
             --title "Release ${{ steps.version.outputs.version }}"
+
+      - name: Trigger evaluation-function-base release
+        if: steps.idempotency.outputs.skip == 'false'
+        uses: peter-evans/repository-dispatch@v3
+        with:
+          token: ${{ secrets.EVALUATION_FUNCTION_BASE_BUILD_TRIGGER_TOKEN }}
+          repository: ${{ github.repository_owner }}/evaluation-function-base
+          event-type: release
+          client-payload: '{"shimmy_version": "${{ steps.version.outputs.version }}"}'