Add a release GHA workflow

.github/workflows/prerelease-checks.yml

@@ -0,0 +1,18 @@
+name: Pre-release checks
+
+on:
+  workflow_call:
+
+jobs:
+
+  check-commit-ancestor:
+    name: Check commit ancestor
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check commit has been pushed on origin/main
+        run: |
+          git fetch --quiet origin main
+          git merge-base --is-ancestor HEAD origin/main

.github/workflows/release.yml

@@ -0,0 +1,51 @@
+name: Release npm module
+
+on:
+  push:
+    branches:
+      - release/*
+
+jobs:
+
+  pre-release-check:
+    uses: cucumber/cucumber-react/.github/workflows/prerelease-checks.yml@add-release-workflow
+
+  test:
+    uses: cucumber/cucumber-react/.github/workflows/test.yml@add-release-workflow
+
+  publish-npm:
+    name: Publish NPM module
+    needs: [pre-release-check, test]
+    runs-on: ubuntu-latest
+    environment: Release
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '16'
+          cache: 'npm'
+          cache-dependency-path: package-lock.json
+
+      - run: npm install-ci-test
+
+      - run: npm run compile
+
+      - uses: cucumber/[email protected]
+        with:
+          npm-token: ${{ secrets.NPM_TOKEN }}
+
+  create-github-release:
+    name: Create GitHub Release and Git tag
+    needs: [publish-npm]
+    runs-on: ubuntu-latest
+    environment: Release
+    permissions:
+      contents: write
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: cucumber/[email protected]
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -7,6 +7,7 @@ on:
   pull_request:
     branches:
       - main
+  workflow_call:
 
 jobs:
   test:

RELEASING.md

@@ -0,0 +1 @@
+See [.github/RELEASING](https://github.com/cucumber/.github/blob/main/RELEASING.md).