prepare-release.yaml

name: Prepare next release

on:
  push:
    branches:
      - main

permissions:
  contents: write
  pull-requests: write

env:
  BOT_USER_NAME: eclipse-thingweb-bot
  BOT_EMAIL: thingweb-bot@eclipse.org

jobs:
  prepare-release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Generate a changelog
        id: git-cliff
        uses: orhun/git-cliff-action@v3
        with:
          config: cliff.toml
          args: --verbose --bump
        env:
          OUTPUT: CHANGELOG.md
          GITHUB_REPO: ${{ github.repository }}

      - name: Determine changes
        uses: orhun/git-cliff-action@v3
        id: git-cliff-changes
        with:
          config: cliff.toml
          args: --verbose --bump --unreleased --strip header
        env:
          OUTPUT: CHANGES.md
          GITHUB_REPO: ${{ github.repository }}

      - name: Format and set new version number
        id: version-number
        run: |
          NEW_VERSION=$(echo ${{ steps.git-cliff.outputs.version }}| cut -d'v' -f 2)
          echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT

      - name: Write new version to pubspec.yaml
        run: |
          NEW_VERSION=${{ steps.version-number.outputs.version }}
          sed -i "/^\(^version: \).*/s//\1$NEW_VERSION/" pubspec.yaml

      - name: Create Pull Request
        id: cpr
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.BOT_TOKEN }}
          commit-message: "chore(release): prepare release ${{ steps.version-number.outputs.version }}"
          committer: ${{ env.BOT_USER_NAME }} <${{ env.BOT_EMAIL }}>
          author: ${{ env.BOT_USER_NAME }} <${{ env.BOT_EMAIL }}>

          signoff: true
          branch: next-release
          delete-branch: true
          title: 'chore(release): prepare release ${{ steps.version-number.outputs.version }}'
          body-path: CHANGES.md
          labels: |
            release
          draft: true
          add-paths: |
            pubspec.yaml
            CHANGELOG.md