finish-release-train.yml

name: Finish Release Train

on: workflow_dispatch

env:
  LC_ALL: en_US.UTF-8
  LANG: en_US.UTF-8

concurrency:
  group: finish-release-train-${{ github.ref }}
  cancel-in-progress: true

jobs:
  prepare:
    name: Extracts the version number from the release branch
    runs-on: ubuntu-latest
    outputs:
      version_number: ${{ steps.version_number.outputs.version_number }}
    steps:
      - name: Verify release branch
        if: "!contains(github.ref, 'release')"
        run: exit 1

      - uses: actions/checkout@v4

      - name: Setup Git User
        run: |
          git config --global user.name "Bitmovin Release Automation"
          git config --global user.email "support@bitmovin.com"

      - name: Detect version number
        id: version_number
        run: |
          version_number=$(echo "${{ github.ref }}" | rev | cut -d '/' -f1 | rev)
          echo "Detected version number: $version_number"
          echo "version_number=$version_number" >> $GITHUB_OUTPUT

      - name: Update Changelog
        run: |
          sed -i "s/\[${{ steps.version_number.outputs.version_number }}\].*/\[${{ steps.version_number.outputs.version_number }}\] - $(date +'%Y-%m-%d')/g" CHANGELOG.md

      - name: Commit changelog version bump
        run: |
          git add CHANGELOG.md
          git commit -m "chore: bump changelog date to today"
          git push origin ${{ github.ref }}

  trigger_publish:
    name: Push tag to trigger publishing to pub dev
    needs: [prepare]
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.ref }}
          ssh-key: ${{ secrets.PLAYER_FLUTTER_DEPLOY_KEY }}

      - name: Setup Git User
        run: |
          git config --global user.name "Bitmovin Release Automation"
          git config --global user.email "support@bitmovin.com"

      - name: Add tag
        run: |
          git tag ${{ needs.prepare.outputs.version_number }}

      - name: Push tag
        run: |
          git push origin ${{ needs.prepare.outputs.version_number }}

  create_pr:
    name: Create PR
    needs: [prepare, trigger_publish]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.ref }}

      - name: Setup Git User
        run: |
          git config --global user.name "Bitmovin Release Automation"
          git config --global user.email "support@bitmovin.com"

      - name: Create PR
        run: |
          gh pr create \
          --base "main" \
          --title "Release ${{ needs.prepare.outputs.version_number }}" \
          --body "Release ${{ needs.prepare.outputs.version_number }}. Please review and merge this PR." \
          --reviewer "${{ github.actor }}"
        env:
          GH_TOKEN: ${{ github.token }}