version-or-release.yml

name: Version/Release

on:
  push:
    branches:
      - dev

jobs:
  changesets:
    name: Create Versioning PR or Start Release Pipeline
    runs-on: ubuntu-latest

    if: github.repository == 'statelyai/xstate-viz'

    outputs:
      hasChangesets: ${{ steps.changesets.outputs.hasChangesets }}

    steps:
      - name: Checkout Repo
        uses: actions/checkout@v3

      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 16
          cache: 'yarn'

      - name: Install Dependencies
        run: yarn install --frozen-lockfile

      - name: Create Release Pull Request
        id: changesets
        uses: changesets/action@master
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  create-temp-release-branch:
    name: Create temporary release branch
    runs-on: ubuntu-latest
    needs: changesets

    if: needs.changesets.outputs.hasChangesets == 'false'

    outputs:
      release-branch: ${{ steps.release-branch-check.outputs.branch }}
      version: ${{ steps.latest-version.outputs.result }}

    steps:
      - name: Checkout Repo
        uses: actions/checkout@v2

      - name: Get latest version
        id: latest-version
        uses: actions/github-script@v4
        with:
          result-encoding: string
          script: return require('./package.json').version

      - name: Check if branch for ${{ steps.latest-version.outputs.result }} is already created
        id: release-branch-check
        run: |
          branch=release-temp-${{ steps.latest-version.outputs.result }}

          if [ "$(git ls-remote https://github.com/${{ github.repository }}.git $branch)" == "" ]; then
            echo "$branch doesn't exist on the remote"
            echo "::set-output name=branch::$branch"
          else
            echo "$branch already exists on the remote"
          fi;

      # can't use the output from the previous step in the name here as it could have not been set
      - name: Create release-temp-${{ steps.latest-version.outputs.result }} branch
        if: steps.release-branch-check.outputs.branch
        run: |
          git push origin HEAD:${{ steps.release-branch-check.outputs.branch }}

  staging-deploy-trigger:
    name: Push release to staging
    runs-on: ubuntu-latest
    needs: create-temp-release-branch
    if: needs.create-temp-release-branch.outputs.release-branch
    environment: Staging Trigger

    steps:
      - name: Checkout Repo
        uses: actions/checkout@v2
        with:
          ref: ${{ needs.create-temp-release-branch.outputs.release-branch }}

      - name: Setup git user
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Create release commit
        run: |
          git commit -m 'Release ${{ needs.create-temp-release-branch.outputs.version }} to staging' --allow-empty

      - name: Force push the release to staging
        run: |
          git push origin HEAD:staging --force

  production-deploy-trigger:
    name: Push release to main
    runs-on: ubuntu-latest
    needs: create-temp-release-branch
    if: needs.create-temp-release-branch.outputs.release-branch
    environment: Production Trigger

    steps:
      - name: Checkout Repo
        uses: actions/checkout@v2
        with:
          ref: ${{ needs.create-temp-release-branch.outputs.release-branch }}

      - name: Setup git user
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Create release commit
        run: |
          git commit -m 'Release ${{ needs.create-temp-release-branch.outputs.version }} to main' --allow-empty

      - name: Force push the release to main
        run: |
          git push origin HEAD:main --force

  create-github-release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    needs: [create-temp-release-branch, production-deploy-trigger]

    steps:
      - name: Checkout Repo
        uses: actions/checkout@v2
        with:
          ref: ${{ needs.create-temp-release-branch.outputs.release-branch }}

      - name: Publish a tag
        run: |
          git tag v${{ needs.create-temp-release-branch.outputs.version }}
          git push origin v${{ needs.create-temp-release-branch.outputs.version }}

      - name: Publish a GitHub release
        uses: actions/github-script@v4
        with:
          script: |
            const { publishRelease } = require(`./scripts/publish-github-release.js`)

            await publishRelease(github, { repo: context.repo })

      - name: Remove the temporary release branch
        run: |
          git push origin --delete ${{ needs.create-temp-release-branch.outputs.release-branch }}