release.yml

name: Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

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

      - name: Get version from tag
        id: version
        run: |
          VERSION=${GITHUB_REF#refs/tags/v}
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Get previous tag
        id: prev_tag
        run: |
          CURRENT_TAG=${GITHUB_REF#refs/tags/}
          PREV_TAG=$(git describe --tags --abbrev=0 ${CURRENT_TAG}^ 2>/dev/null || echo "")
          echo "prev_tag=$PREV_TAG" >> $GITHUB_OUTPUT

      - name: Generate changelog
        run: |
          PREV_TAG=${{ steps.prev_tag.outputs.prev_tag }}
          if [ -z "$PREV_TAG" ]; then
            COMMITS=$(git log --pretty=format:"- %s (%h)" HEAD)
          else
            COMMITS=$(git log --pretty=format:"- %s (%h)" ${PREV_TAG}..HEAD)
          fi

          BREAKING=$(echo "$COMMITS" | grep -iE "^- (feat|fix|refactor)(\(.+\))?!:|BREAKING CHANGE" || true)
          FEATURES=$(echo "$COMMITS" | grep -iE "^- feat(\(.+\))?:" | grep -viE "!:" || true)
          FIXES=$(echo "$COMMITS" | grep -iE "^- fix(\(.+\))?:" | grep -viE "!:" || true)
          DOCS=$(echo "$COMMITS" | grep -iE "^- docs(\(.+\))?:" || true)
          CHORES=$(echo "$COMMITS" | grep -iE "^- (chore|ci|build)(\(.+\))?:" || true)
          OTHER=$(echo "$COMMITS" | grep -viE "^- (feat|fix|docs|chore|ci|build|refactor)(\(.+\))?:" || true)

          CHANGELOG=""
          [ -n "$BREAKING" ] && CHANGELOG="$CHANGELOG## Breaking Changes\n$BREAKING\n\n"
          [ -n "$FEATURES" ] && CHANGELOG="$CHANGELOG## Features\n$FEATURES\n\n"
          [ -n "$FIXES" ] && CHANGELOG="$CHANGELOG## Bug Fixes\n$FIXES\n\n"
          [ -n "$DOCS" ] && CHANGELOG="$CHANGELOG## Documentation\n$DOCS\n\n"
          [ -n "$CHORES" ] && CHANGELOG="$CHANGELOG## Maintenance\n$CHORES\n\n"
          [ -n "$OTHER" ] && CHANGELOG="$CHANGELOG## Other Changes\n$OTHER\n\n"

          echo -e "$CHANGELOG" > changelog.md

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ github.ref_name }}
          name: ${{ github.ref_name }}
          body_path: changelog.md