build-release.yml

name: Build release

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'New version number eg: 5.0.0'
        required: true
        type: string
  pull_request:

permissions:
  contents: write
  pull-requests: write

jobs:
  build-release:
    name: Build release
    runs-on: Ubuntu-22.04

    steps:
      - name: Checkout
        uses: actions/checkout@v4.2.2

      - name: Setup Node
        uses: actions/setup-node@v4.1.0
        with:
          node-version-file: .nvmrc

      - name: Install dependencies
        run: npm ci

      - name: Validate version
        uses: actions/github-script@v7.0.1
        with:
          script: |
            const { validateVersion } = await import('${{ github.workspace }}/.github/workflows/scripts/changelog-release-helper.mjs')

            await validateVersion(${{ inputs.version }})

      - name: Update package version
        run: npm version --no-git-tag-version --workspace govuk-frontend ${{ inputs.version }}

      - name: Update CHANGELOG
        uses: actions/github-script@v7.0.1
        with:
          script: |
            const { updateChangelog } = await import('${{ github.workspace }}/.github/workflows/scripts/changelog-release-helper.mjs')

            await updateChangelog(${{ inputs.version }})

      - name: Generate release notes
        uses: actions/github-script@v7.0.1
        with:
          script: |
            const { generateReleaseNotes } = await import('${{ github.workspace }}/.github/workflows/scripts/changelog-release-helper.mjs')

            await generateReleaseNotes()

      - name: Run tests
        run: npm run test

      - name: Build release
        run: npm run build:release

      - name: Create pull request
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          branch: release-${{ inputs.version }}
          delete-branch: true
          commit-message: 'Release ${{ inputs.version }}'
          title: 'Release ${{ inputs.version }}'
          body-path: release-notes-body
          base: ${{ github.head_ref }}