pre-release.yml

name: Pre-Release
on:
  workflow_dispatch:
    inputs:
      semver-type:
        description: "Can be one of [major,minor,patch]. CAUTION: This will enforce a new pre-release with the specified semantic version type bumped."
        required: false

env:
  NODE_VERSION: 14
  KEPTN_BOT_NAME: "Keptn Contrib Bot"
  KEPTN_BOT_EMAIL: "keptn-contrib-bot@users.noreply.github.com"
  RELEASE_NOTES_FILE: "RELEASE-BODY.md" # If you change this, then also adapt .gitignore!
  PRERELEASE_KEYWORD: "next"

defaults:
  run:
    shell: bash

jobs:
  unit-tests:
    name: Unit Tests
    runs-on: ubuntu-20.04
    steps:
      - name: Check out repository
        uses: actions/checkout@v4.1.1
      - name: Unit tests
        uses: ./.github/actions/unit-tests

  prepare:
    name: Prepare pre-release run
    runs-on: ubuntu-20.04
    outputs:
      next-version: ${{ steps.version_number.outputs.next-version }}
      branch: ${{ steps.current_branch.outputs.branch }}
    steps:
      - name: Check SemVer input
        env:
          SEMVER_TYPE: ${{ github.event.inputs.semver-type }}
        run: |
          if [[ ! -z "$SEMVER_TYPE" ]]; then
            echo "SemVer Type is defined. Checking for valid SemVer type..."
            if [[ "$SEMVER_TYPE" == "major" ]] || [[ "$SEMVER_TYPE" == "minor" ]] || [[ "$SEMVER_TYPE" == "patch" ]]; then
              echo "::notice::SemVer Type is correctly set to $SEMVER_TYPE! Continuing with this version bump..."
            else
              echo "::error::ERROR: Enforced SemVer does not match any of [major,minor,patch]!"
              echo "Exiting..."
              exit 1
            fi
          else
            echo "::notice::No SemVer type defined, continuing with auto generated version number..."
          fi

      - name: Checkout repo
        uses: actions/checkout@v4.1.1
        with:
          fetch-depth: 0
          token: ${{ secrets.KEPTN_BOT_TOKEN }}

      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: ${{ env.NODE_VERSION }}

      - name: Find next version number
        id: version_number
        env:
          SEMVER_TYPE: ${{ github.event.inputs.semver-type }}
        run: |
          if [[ ! -z "$SEMVER_TYPE" ]]; then
            npx standard-version@^9.3.2 \
              --skip.commit \
              --skip.tag \
              --skip.changelog \
              --prerelease "${{ env.PRERELEASE_KEYWORD }}" \
              --release-as "$SEMVER_TYPE"
          else
            npx standard-version@^9.3.2 \
              --skip.commit \
              --skip.tag \
              --skip.changelog \
              --prerelease "${{ env.PRERELEASE_KEYWORD }}"
          fi

          NEXT_VERSION=$(cat VERSION.txt)
          echo "::set-output name=next-version::${NEXT_VERSION}"
          git checkout HEAD -- VERSION.txt

      - name: Find current branch
        id: current_branch
        run: |
          branch=${GITHUB_REF#refs/heads/}
          echo "::set-output name=branch::${branch}"

  ############################################################################
  # Build Docker Image
  ############################################################################
  docker_build:
    needs: prepare
    name: Build Docker Image
    runs-on: ubuntu-20.04
    env:
      VERSION: ${{ needs.prepare.outputs.next-version }}
    steps:
      - name: Checkout Code
        uses: actions/checkout@v4.1.1

      # load DOCKER_ORGANIZATION & IMAGE variable from .ci_env
      - name: Load CI Environment from .ci_env
        id: load_ci_env
        uses: c-py/action-dotenv-to-setenv@v4
        with:
          env-file: .ci_env

      - name: Docker Build
        uses: keptn/gh-automation/.github/actions/docker-build@v1.6.0
        with:
          TAGS: |
            ${{ env.DOCKER_ORGANIZATION }}/${{ env.IMAGE }}:${{ env.VERSION }}
          BUILD_ARGS: |
            version=${{ env.VERSION }}
          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
          REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}

  ############################################################################
  # Build Helm Chart
  ############################################################################
  build-helm-chart:
    needs: prepare
    name: Build Helm Charts
    uses: ./.github/workflows/build-helm-chart.yml
    with:
      branch: ${{ needs.prepare.outputs.branch }}
      version: ${{ needs.prepare.outputs.next-version }}
      release: true

  ############################################################################
  # Pre-Release
  ############################################################################
  pre-release:
    name: "Pre-Release"
    runs-on: ubuntu-20.04
    needs: [prepare, docker_build, build-helm-chart]
    steps:
      - name: Checkout repo
        uses: actions/checkout@v4.1.1
        with:
          fetch-depth: 0
          token: ${{ secrets.KEPTN_BOT_TOKEN }}

      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: ${{ env.NODE_VERSION }}

      - name: Configure Git
        env:
          KEPTN_BOT_NAME: ${{ env.KEPTN_BOT_NAME }}
          KEPTN_BOT_EMAIL: ${{ env.KEPTN_BOT_EMAIL }}
        run: |
          git config user.name "$KEPTN_BOT_NAME"
          git config user.email "$KEPTN_BOT_EMAIL"

      - name: Prepare GitHub Pre-Release Notes
        env:
          SEMVER_TYPE: ${{ github.event.inputs.semver-type }}
        run: |
          if [[ ! -z "$SEMVER_TYPE" ]]; then
            npx standard-version@^9.3.2 \
              --prerelease "${{ env.PRERELEASE_KEYWORD }}" \
              -i "${{ env.RELEASE_NOTES_FILE }}" \
              --skip.commit \
              --skip.tag \
              --header "" \
              --release-as "$SEMVER_TYPE"
          else
            npx standard-version@^9.3.2 \
              --prerelease "${{ env.PRERELEASE_KEYWORD }}" \
              -i "${{ env.RELEASE_NOTES_FILE }}" \
              --skip.commit \
              --skip.tag \
              --header ""
          fi

      - name: Create Pre-Release Package
        id: create-release-package
        env:
          SEMVER_TYPE: ${{ github.event.inputs.semver-type }}
          GITHUB_TOKEN: ${{ secrets.KEPTN_BOT_TOKEN }}
        run: |
          echo "🚀 Creating release package now..."

          if [[ ! -z "$SEMVER_TYPE" ]]; then
            npx standard-version@^9.3.2 \
              --release-as "$SEMVER_TYPE" \
              --prerelease "${{ env.PRERELEASE_KEYWORD }}" \
              --skip.commit \
              --skip.changelog
          else
            npx standard-version@^9.3.2 \
              --prerelease "${{ env.PRERELEASE_KEYWORD }}" \
              --skip.commit \
              --skip.changelog
          fi

          echo "::set-output name=tag-name::$(git describe --tags --abbrev=0)"

      # No need for a PR here, because we do not want any changes to be committed. Just push the pre-release tag
      - name: Push Tags
        run: |
          git push --follow-tags

      - name: Download Pre-Release Artifacts
        uses: actions/download-artifact@v3
        with:
          path: ./dist

      - name: Create GitHub Pre-Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          RELEASE_TAG: ${{ steps.create-release-package.outputs.tag-name }}
        run: |
          gh release create "${{ env.RELEASE_TAG }}" --draft --prerelease --notes-file "${{ env.RELEASE_NOTES_FILE }}" --title "${{ env.RELEASE_TAG }}" ./dist/installer/*.tgz