prepare-non-patch-release.yml

name: Prepare non-patch PR
run-name: Prepare non-patch PR, triggered by ${{ github.triggering_actor }}

on:
  push:
    branches:
      - next
  workflow_dispatch:
    inputs:
      release-type:
        description: 'Which release type to use for bumping the version'
        required: true
        default: 'prerelease'
        type: choice
        options:
          - prerelease
          - prepatch
          - preminor
          - premajor
          - patch
          - minor
          - major
      pre-id:
        description: For prerelease versions, what prerelease identifier to use, eg. 'alpha', 'beta', 'rc'
        required: false
        type: string

env:
  PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
  PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: 1

concurrency:
  group: ${{ github.workflow }}
  cancel-in-progress: true

jobs:
  prepare-non-patch-pull-request:
    name: Prepare non-patch pull request
    runs-on: ubuntu-latest
    environment: release
    defaults:
      run:
        working-directory: scripts
    steps:
      - name: Checkout next
        uses: actions/checkout@v3
        with:
          ref: next
          # this needs to be set to a high enough number that it will contain the last version tag
          # as of May 2023, the whole repo had 55K commits
          fetch-depth: 10000
          token: ${{ secrets.GH_TOKEN }}

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version-file: '.nvmrc'

      - name: Cache dependencies
        uses: actions/cache@v3
        with:
          path: |
            ~/.yarn/berry/cache
          key: yarn-v1-${{ hashFiles('scripts/yarn.lock') }}-${{ hashFiles('code/yarn.lock') }}
          restore-keys: |
            yarn-v1-${{ hashFiles('scripts/yarn.lock') }}-${{ hashFiles('code/yarn.lock') }}
            yarn-v1-${{ hashFiles('scripts/yarn.lock') }}
            yarn-v1

      - name: Install Dependencies
        working-directory: .
        run: |
          yarn task --task=install

      - name: Check if pull request is frozen
        if: github.event_name != 'workflow_dispatch'
        id: check-frozen
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: yarn release:is-pr-frozen

      - name: Cancel when frozen
        if: steps.check-frozen.outputs.frozen == 'true' && github.event_name != 'workflow_dispatch'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        # From https://stackoverflow.com/a/75809743
        run: |
          gh run cancel ${{ github.run_id }}
          gh run watch ${{ github.run_id }}

      # tags are needed to get changes and changelog generation
      - name: Fetch git tags
        run: git fetch --tags origin

      - name: Check for unreleased changes
        id: unreleased-changes
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: yarn release:unreleased-changes-exists

      - name: Cancel when no release necessary
        if: steps.unreleased-changes.outputs.has-changes-to-release == 'false'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        # From https://stackoverflow.com/a/75809743
        run: |
          gh run cancel ${{ github.run_id }}
          gh run watch ${{ github.run_id }}

      - name: Bump version deferred
        id: bump-version
        run: |
          yarn release:version --deferred --release-type ${{ inputs.release-type || 'prerelease' }} ${{ inputs.pre-id && format('{0} {1}', '--pre-id', inputs.pre-id) || '' }} --verbose

      - name: Check release vs prerelease
        id: is-prerelease
        run: yarn release:is-prerelease

      - name: Write changelog
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          yarn release:write-changelog ${{ steps.bump-version.outputs.next-version }} --verbose

      - name: 'Commit changes to branch: version-non-patch-from-${{ steps.bump-version.outputs.current-version }}'
        working-directory: .
        run: |
          git config --global user.name 'storybook-bot'
          git config --global user.email '32066757+storybook-bot@users.noreply.github.com'
          git checkout -b version-non-patch-from-${{ steps.bump-version.outputs.current-version }}
          git add .
          git commit -m "Write changelog for ${{ steps.bump-version.outputs.next-version }} [skip ci]" || true
          git push --force origin version-non-patch-from-${{ steps.bump-version.outputs.current-version }}

      - name: Resolve merge-conflicts with base branch
        if: steps.is-prerelease.outputs.prerelease == 'false'
        working-directory: .
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          git config pull.rebase false
          git pull --no-commit --no-ff origin latest-release || true
          git checkout --ours .
          git add .
          git commit --no-verify -m "Merge latest-release into version-non-patch-from-${{ steps.bump-version.outputs.current-version }} with conflicts resolved to ours [skip ci]"

      - name: Generate PR description
        id: description
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: yarn release:generate-pr-description --current-version ${{ steps.bump-version.outputs.current-version }} --next-version ${{ steps.bump-version.outputs.next-version }} --verbose

      - name: Create or update pull request
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          RELEASE_TYPE=${{ inputs.release-type || 'prerelease' }}
          CAPITALIZED_RELEASE_TYPE=${RELEASE_TYPE^}
          if PR_STATE=$(gh pr view --json state --jq .state 2>/dev/null) && [[ -n "$PR_STATE" && "$PR_STATE" == *"OPEN"* ]]; then
            gh pr edit \
              --repo "${{github.repository }}" \
              --title "Release: $CAPITALIZED_RELEASE_TYPE ${{ inputs.pre-id && format('{0} ', inputs.pre-id) }}${{ steps.bump-version.outputs.next-version }}" \
              --base ${{ steps.is-prerelease.outputs.prerelease == 'true' && 'next-release' || 'latest-release' }} \
              --body "${{ steps.description.outputs.description }}"
          else
            gh pr create \
              --repo "${{github.repository }}"\
              --title "Release: $CAPITALIZED_RELEASE_TYPE ${{ inputs.pre-id && format('{0} ', inputs.pre-id) }}${{ steps.bump-version.outputs.next-version }}" \
              --label "release" \
              --base ${{ steps.is-prerelease.outputs.prerelease == 'true' && 'next-release' || 'latest-release' }} \
              --head version-non-patch-from-${{ steps.bump-version.outputs.current-version }} \
              --body "${{ steps.description.outputs.description }}"
          fi

      - name: Report job failure to Discord
        if: failure()
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_MONITORING_URL }}
        uses: Ilshidur/action-discord@master
        with:
          args: 'The GitHub Action for preparing the release pull request bumping from v${{ steps.bump-version.outputs.current-version }} to v${{ steps.bump-version.outputs.next-version }} (triggered by ${{ github.triggering_actor }}) failed! See run at: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}'