changelog.yml

name: Changelog
on:
  pull_request:
    types: [closed]

jobs:
  build:
    runs-on: ubuntu-latest
    if: startsWith(github.base_ref, 'release/') && github.event.pull_request.merged == true
    steps:
      - uses: actions/checkout@v2
        with:
            fetch-depth: 0
            persist-credentials: false
            token: ${{ github.token }}

      - name: Build Changelog
        id: github_release
        uses: mikepenz/release-changelog-builder-action@v4.1.1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          fromTag: main
          toTag: ${{ github.base_ref }}
          outputFile: CHANGELOG.release.md
          configurationJson: |
            {
              "pr_template": "- #{{TITLE}} (PR: ##{{NUMBER}})",
              "categories": [
                  {
                    "title": "### 🚀 Features",
                    "labels": ["feature", "enhancement"]
                  },
                  {
                    "title": "### 🐛 Fixes",
                    "labels": ["fix", "hotfix", "bug"]
                  },
                  {
                    "title": "### 🧪 Test",
                    "labels": ["test"]
                  },
                  {
                    "title": "### 📦 General",
                    "labels": []
                  },
                  {
                    "title": "### 📖 Documentation",
                    "labels": ["doc"]
                  }
                ],
                "label_extractor": [
                    {
                    "pattern": "(.*)/(.+)",
                    "on_property": "branch",
                    "target": "$1",
                    "flags": "gu"
                    }
                ]
            }

      - name: Create CHANGELOG.md
        run: |
            echo "## ${GITHUB_BASE_REF#release/}" > CHANGELOG.md.new
            cat CHANGELOG.release.md | sed -e 's:## :### :g'  >> CHANGELOG.md.new
            echo "" >> CHANGELOG.md.new
            git checkout origin/main -- CHANGELOG.md
            cat CHANGELOG.md >> CHANGELOG.md.new;
            mv CHANGELOG.md.new CHANGELOG.md

            git config --global user.name $GITHUB_ACTOR
            git config --global user.email $GITHUB_ACTOR@users.noreply.github.com
            git add CHANGELOG.md
            git add CHANGELOG.release.md
            git commit -m "update changelogs"
  
      - name: Push changes
        uses: ad-m/github-push-action@master
        with:
            github_token: ${{ github.token }}
            branch: ${{ github.base_ref }}