changelog.yml

name: Changelog Update

on:
  pull_request:
    branches:
      - main
    types: [opened, synchronize, reopened]

permissions: write-all

jobs:
  update_changelog:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Set up Node.js
        uses: actions/setup-node@v2
        with:
          node-version: "18"

      - name: Install conventional-changelog-cli
        run: npm install -g conventional-changelog-cli

      - name: Get PR title
        id: pr_title
        run: echo "::set-output name=title::$(jq --raw-output .pull_request.title $GITHUB_EVENT_PATH)"

      - name: Generate changelog diff
        run: |
          git fetch origin main:main
          conventional-changelog -p angular -i CHANGELOG.md -s -r 0 > changelog_diff.md
          echo "### ${GITHUB_REF##*/} - ${{ steps.pr_title.outputs.title }}" >> changelog_diff.md
          echo "::set-output name=changelog::$(cat changelog_diff.md)"

      - name: Commit and push changelog update
        run: |
          git config user.name 'github-actions'
          git config user.email 'github-actions@github.com'
          git add CHANGELOG.md
          git commit -m "Update CHANGELOG.md [skip ci]"
          git push origin HEAD:refs/heads/${{ github.head_ref }}