create_new_release.yml

name: 新規リリース(Pull Request)を作成する

on:
  workflow_dispatch:

jobs:
  get_branch_name:
    runs-on: ubuntu-22.04
    outputs:
      value: ${{ steps.job.outputs.value }}
    steps:
      - name: Extract branch name
        id: job
        run: echo "value=$(echo ${GITHUB_REF#refs/heads/})" >> $GITHUB_OUTPUT

  bump_version:
    runs-on: ubuntu-22.04
    needs: get_branch_name
    outputs:
      old_version: ${{ steps.bump.outputs.old_version }}
      new_version: ${{ steps.bump.outputs.new_version }}
    steps:
      - name: Checkout
        uses: actions/checkout@master
        with:
          persist-credentials: false
          fetch-depth: 0
      - name: Bump version
        id: bump
        run: |
          get_defined_versions () {
            grep -o -P "(?<=ThisBuild / version := \")\d+(?=\")" build.sbt
          }

          update_version_to () {
            echo "置換先のバージョン： $1"
            echo "new_version=$1" >> $GITHUB_OUTPUT
            sed -i -e "s/ThisBuild \/ version := \"[0-9]\+\"/ThisBuild \/ version := \"$1\"/g" build.sbt
          }

          if [ ! $(get_defined_versions | wc -l) = "1" ]; then
            echo "エラー：build.sbt でのバージョン指定が一意でありません。"
            exit 1
          fi

          echo "old_version=$(get_defined_versions)" >> $GITHUB_OUTPUT

          update_version_to $(get_defined_versions | xargs expr 1 +)
      # 本来であればActionsに権限を増やしたりbranch protection ruleに例外を設けるなどしてpushを許したいが、
      # どうやらこれが現時点では不可能なようなので^[1]、developへのpush権限があるユーザーと
      # そのpersonal access token(repo権限付き)をVERSION_BUMP_WORKFLOW_ACTORとVERSION_BUMP_WORKFLOW_PUSH_TOKENへ
      # 追加し、それを利用するようにしている。
      # 参考:
      #  - [1]: https://github.community/t/how-to-push-to-protected-branches-in-a-github-action/16101
      - name: Commit & Push changes
        run: |
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"

          ACTOR=${{ secrets.VERSION_BUMP_WORKFLOW_ACTOR }}
          TOKEN=${{ secrets.VERSION_BUMP_WORKFLOW_PUSH_TOKEN }}

          git add -A
          git commit -m "chore(bump): ${{ steps.bump.outputs.old_version }} -> ${{ steps.bump.outputs.new_version }}"

          # masterへのマージはブランチが最新であることが要求されるため、ここでマージしておく
          git fetch origin master
          git merge --no-ff origin/master

          git push \
            https://$ACTOR:$TOKEN@github.com/GiganticMinecraft/SeichiAssist.git \
            HEAD:${{ needs.get_branch_name.outputs.value }}

  create_release:
    runs-on: ubuntu-22.04
    needs: bump_version
    steps:
      - uses: actions/checkout@master
        with:
          # これがないとchunk_searchで引っかかってリリースのjarアップロードに失敗する
          submodules: 'recursive'

      - uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: '8'

      - name: build artifacts
        run: sbt assembly

      - name: Create release
        id: create_release
        uses: softprops/action-gh-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          files: target/build/SeichiAssist.jar
          tag_name: "v${{ needs.bump_version.outputs.new_version }}"
          draft: false
          prerelease: false

  create_pull-request_to_master:
    runs-on: ubuntu-22.04
    needs: [get_branch_name, bump_version]
    steps:
      - uses: actions/checkout@master
      - name: Create pull request
        uses: repo-sync/pull-request@v2
        with:
          destination_branch: "master"
          github_token: ${{ secrets.GITHUB_TOKEN }}
          pr_title: "バージョン ${{ needs.bump_version.outputs.new_version }} リリース"