release.yml

name: release

on:
  push:
    branches:
      - 'release/*'

jobs:
  check-existing-release:
    runs-on: ubuntu-latest

    outputs:
      RELEASE_EXISTS: ${{ steps.current-pr.outputs.pr_found }}

    permissions:
      pull-requests: read

    steps:

    - name: Get current PR
      uses: 8BitJonny/gh-get-current-pr@3.0.0
      id: current-pr

  get-release-version:
    needs: check-existing-release

    if: needs.check-existing-release.outputs.RELEASE_EXISTS == 'false'

    runs-on: ubuntu-latest

    outputs:
      RELEASE_VERSION: ${{ steps.release-version.outputs.RELEASE_VERSION }}

    steps:

    - name: Extract version from branch name
      id: release-version
      run: |
        VERSION=${GITHUB_REF##*/}
        echo "RELEASE_VERSION=$VERSION" >> $GITHUB_OUTPUT

  create-release-pr:
    needs: get-release-version

    runs-on: ubuntu-latest

    steps:

    - name: Get app token
      uses: actions/create-github-app-token@v1
      id: app-token
      with:
        app-id: ${{ vars.APP_ID }}
        private-key: ${{ secrets.PRIVATE_KEY }}

    - name: Checkout the repo
      uses: actions/checkout@v4
      with:
        token: ${{ steps.app-token.outputs.token }}

    - name: Get release version
      run: |
        echo "RELEASE_VERSION=${{ needs.get-release-version.outputs.RELEASE_VERSION }}" >> $GITHUB_ENV

    - name: Get current date
      run: |
        echo "CURRENT_DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV

    - name: Build changelog
      id: build_changelog
      uses: mikepenz/release-changelog-builder-action@v4
      with:
        configurationJson: |
          {
            "categories": [
              {
                "title": "### Features",
                "labels": ["type: feature"],
                "exclude_labels": ["package: patch", "package: potts"]
              },
              {
                "title": "#### Features: \\x60patch\\x60",
                "labels": ["type: feature", "package: patch"],
                "exclude_labels": ["package: potts"],
                "exhaustive": true
              },
              {
                "title": "#### Features: \\x60potts\\x60",
                "labels": ["type: feature", "package: potts"],
                "exclude_labels": ["package: patch"],
                "exhaustive": true
              },
              {
                "title": "### Bug fixes",
                "labels": ["type: bug"]
              },
              {
                "title": "### Tests",
                "labels": ["type: test"]
              },
              {
                "title": "### Documentation",
                "labels": ["type: docs"]
              },
              {
                "title": "### Admin",
                "labels": ["type: admin"]
              }
            ],
            "template": "# [${{ env.RELEASE_VERSION }}](https://github.com/${{ github.repository }}/releases/tag/${{ env.RELEASE_VERSION }}) - ${{ env.CURRENT_DATE }}\n\n> Compare with [#{{FROM_TAG}}](https://github.com/${{ github.repository }}/compare/#{{FROM_TAG}}...${{ env.RELEASE_VERSION }})\n\n#{{CHANGELOG}}",
            "pr_template": "- #{{TITLE}} by [@#{{AUTHOR}}](https://github.com/#{{AUTHOR}}) in [##{{NUMBER}}](#{{URL}})"
          }
        toTag: ${{ github.sha }}
        token: ${{ secrets.GITHUB_TOKEN }}

    - name: Update changelog
      run: |
        export CHANGELOG=docs/_changelog/${{ env.RELEASE_VERSION }}.md
        printf -- "---\ntitle: ${{ env.RELEASE_VERSION}}\n---\n\n" > $CHANGELOG
        printf "${{ steps.build_changelog.outputs.changelog }}" >> $CHANGELOG
        a=$(< $CHANGELOG); printf '%s\n' "$a" > $CHANGELOG

    - name: Commit changelog
      uses: EndBug/add-and-commit@v9
      with:
          add: docs/_changelog/${{ env.RELEASE_VERSION}}.md
          author_name: bagheri-lab-bot[bot]
          author_email: bagheri-lab-bot[bot]@users.noreply.github.com
          message: "Add changelog for ${{ env.RELEASE_VERSION }}"
          default_author: github_actor
          push: 'origin ${{ github.event.push.ref }}'

    - name: Create pull request
      env:
        GH_TOKEN: ${{ steps.app-token.outputs.token }}
      shell: bash -l {0}
      run: |
        gh pr create --title "Release ${{ env.RELEASE_VERSION }}" --body ""