From d38af43567e95c66bd799db9e3a192bda3b4fc6b Mon Sep 17 00:00:00 2001
From: Liam MacPherson <liammacpherson1996@gmail.com>
Date: Tue, 16 Apr 2024 12:56:26 +0100
Subject: [PATCH] ci: implement tagging of repository on change

---
 .../pull-request-semver-label-check.yaml      | 39 ++++++++++++++
 .../pull-request-semver-tag-merge.yaml        | 52 +++++++++++++++++++
 2 files changed, 91 insertions(+)
 create mode 100644 .github/workflows/pull-request-semver-label-check.yaml
 create mode 100644 .github/workflows/pull-request-semver-tag-merge.yaml

diff --git a/.github/workflows/pull-request-semver-label-check.yaml b/.github/workflows/pull-request-semver-label-check.yaml
new file mode 100644
index 0000000..89fecce
--- /dev/null
+++ b/.github/workflows/pull-request-semver-label-check.yaml
@@ -0,0 +1,39 @@
+name: 'Check PR for SemVer Label'
+on:
+  pull_request:
+    types:
+      - labeled
+      - unlabeled
+      - opened
+      - reopened
+      - synchronize
+    branches:
+      - main
+
+permissions:
+  pull-requests: read
+  contents: read
+
+jobs:
+  semver-check:
+    name: 'Check PR for SemVer Label'
+    if: |
+      contains(github.event.pull_request.labels.*.name, 'skip-release') == false
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Parse the SemVer label
+        id: label
+        uses: UKHomeOffice/match-label-action@v1
+        with:
+          labels: minor,major,patch
+          mode: singular
+
+      - name: Calculate SemVer value
+        id: calculate
+        uses: UKHomeOffice/semver-calculate-action@v2
+        with:
+          increment: ${{ steps.label.outputs.matchedLabels }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/pull-request-semver-tag-merge.yaml b/.github/workflows/pull-request-semver-tag-merge.yaml
new file mode 100644
index 0000000..0266df5
--- /dev/null
+++ b/.github/workflows/pull-request-semver-tag-merge.yaml
@@ -0,0 +1,52 @@
+name: 'SemVer Tag on Main Merge'
+on:
+  pull_request:
+    types:
+      - closed
+    branches:
+      - main
+
+permissions:
+  pull-requests: read
+  contents: write
+
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: false
+
+jobs:
+  semver-tag:
+    name: 'Tag Repository with SemVer'
+    if: |
+      github.event.pull_request.merged == true &&
+      contains(github.event.pull_request.labels.*.name, 'skip-release') == false
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Parse the SemVer label
+        id: label
+        uses: UKHomeOffice/match-label-action@v1
+        with:
+          labels: minor,major,patch
+          mode: singular
+
+      - name: Calculate SemVer value
+        id: calculate
+        uses: UKHomeOffice/semver-calculate-action@v2
+        with:
+          increment: ${{ steps.label.outputs.matchedLabels }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: actions/create-github-app-token@v1
+        id: app-token
+        with:
+          app-id: ${{ secrets.GH_APP_ID }}
+          private-key: ${{ secrets.GH_APP_PEM_FILE }}
+
+      - name: Tag Repository
+        uses: UKHomeOffice/semver-tag-action@v4
+        with:
+          tag: ${{ steps.calculate.outputs.version }}
+          github_token: ${{ steps.app-token.outputs.token }}