release.yml

name: Create Release

on:
  push:
    branches:
      - main
    paths-ignore:
      - "README.md"
      - "CONTRIBUTING.md"
      - "CODE_OF_CONDUCT.md"
      - "SECURITY.md"
      - "LICENSE"
      - ".github/ISSUE_TEMPLATE/**"
      - ".github/PULL_REQUEST_TEMPLATE.md"

permissions:
  contents: write
  pull-requests: write

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Get latest tag
        id: get_latest_tag
        run: |
          LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0")
          echo "latest_tag=$LATEST_TAG" >> $GITHUB_OUTPUT
          echo "Latest tag: $LATEST_TAG"

      - name: Determine version bump
        id: version_bump
        run: |
          if [ "${{ steps.get_latest_tag.outputs.latest_tag }}" = "v0.0.0" ]; then
            COMMITS=$(git log --pretty=format:"%s" main)
          else
            COMMITS=$(git log ${{ steps.get_latest_tag.outputs.latest_tag }}..HEAD --pretty=format:"%s")
          fi

          echo "Commits since last tag:"
          echo "$COMMITS"

          BUMP="patch"

          if echo "$COMMITS" | grep -qiE "^(feat|feature)(\(.+\))?!:|^BREAKING CHANGE:|breaking:"; then
            BUMP="major"
          elif echo "$COMMITS" | grep -qiE "^(feat|feature)(\(.+\))?:"; then
            BUMP="minor"
          fi

          echo "bump=$BUMP" >> $GITHUB_OUTPUT
          echo "Version bump type: $BUMP"

      - name: Calculate new version
        id: new_version
        run: |
          LATEST_TAG="${{ steps.get_latest_tag.outputs.latest_tag }}"
          BUMP="${{ steps.version_bump.outputs.bump }}"

          VERSION=${LATEST_TAG#v}
          IFS='.' read -r -a VERSION_PARTS <<< "$VERSION"
          MAJOR="${VERSION_PARTS[0]:-0}"
          MINOR="${VERSION_PARTS[1]:-0}"
          PATCH="${VERSION_PARTS[2]:-0}"

          if [ "$BUMP" = "major" ]; then
            MAJOR=$((MAJOR + 1))
            MINOR=0
            PATCH=0
          elif [ "$BUMP" = "minor" ]; then
            MINOR=$((MINOR + 1))
            PATCH=0
          else
            PATCH=$((PATCH + 1))
          fi

          NEW_VERSION="v${MAJOR}.${MINOR}.${PATCH}"
          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
          echo "New version: $NEW_VERSION"

      - name: Generate changelog
        id: changelog
        run: |
          LATEST_TAG="${{ steps.get_latest_tag.outputs.latest_tag }}"
          NEW_VERSION="${{ steps.new_version.outputs.new_version }}"

          echo "# Release $NEW_VERSION" > /tmp/release_notes.md
          echo "" >> /tmp/release_notes.md

          if [ "$LATEST_TAG" = "v0.0.0" ]; then
            echo "## Initial Release" >> /tmp/release_notes.md
            echo "" >> /tmp/release_notes.md
            echo "First release of the GitHub Copilot CLI customization blueprint." >> /tmp/release_notes.md
          else
            echo "## What's Changed" >> /tmp/release_notes.md
            echo "" >> /tmp/release_notes.md

            FEAT_COMMITS=()
            FIX_COMMITS=()
            DOCS_COMMITS=()
            REFACTOR_COMMITS=()
            CHORE_COMMITS=()
            OTHER_COMMITS=()

            while IFS= read -r line; do
              if echo "$line" | grep -qiE "^(feat|feature)(\(.+\))?:"; then
                FEAT_COMMITS+=("$line")
              elif echo "$line" | grep -qiE "^fix(\(.+\))?:"; then
                FIX_COMMITS+=("$line")
              elif echo "$line" | grep -qiE "^docs(\(.+\))?:"; then
                DOCS_COMMITS+=("$line")
              elif echo "$line" | grep -qiE "^refactor(\(.+\))?:"; then
                REFACTOR_COMMITS+=("$line")
              elif echo "$line" | grep -qiE "^chore(\(.+\))?:"; then
                CHORE_COMMITS+=("$line")
              else
                OTHER_COMMITS+=("$line")
              fi
            done < <(git log $LATEST_TAG..HEAD --pretty=format:"%s")

            if [ ${#FEAT_COMMITS[@]} -gt 0 ]; then
              echo "### ✨ Features" >> /tmp/release_notes.md
              for commit in "${FEAT_COMMITS[@]}"; do
                echo "- $commit" >> /tmp/release_notes.md
              done
              echo "" >> /tmp/release_notes.md
            fi

            if [ ${#FIX_COMMITS[@]} -gt 0 ]; then
              echo "### 🐛 Bug Fixes" >> /tmp/release_notes.md
              for commit in "${FIX_COMMITS[@]}"; do
                echo "- $commit" >> /tmp/release_notes.md
              done
              echo "" >> /tmp/release_notes.md
            fi

            if [ ${#DOCS_COMMITS[@]} -gt 0 ]; then
              echo "### 📚 Documentation" >> /tmp/release_notes.md
              for commit in "${DOCS_COMMITS[@]}"; do
                echo "- $commit" >> /tmp/release_notes.md
              done
              echo "" >> /tmp/release_notes.md
            fi

            if [ ${#REFACTOR_COMMITS[@]} -gt 0 ]; then
              echo "### ♻️ Refactoring" >> /tmp/release_notes.md
              for commit in "${REFACTOR_COMMITS[@]}"; do
                echo "- $commit" >> /tmp/release_notes.md
              done
              echo "" >> /tmp/release_notes.md
            fi

            if [ ${#CHORE_COMMITS[@]} -gt 0 ]; then
              echo "### 🔧 Maintenance" >> /tmp/release_notes.md
              for commit in "${CHORE_COMMITS[@]}"; do
                echo "- $commit" >> /tmp/release_notes.md
              done
              echo "" >> /tmp/release_notes.md
            fi

            if [ ${#OTHER_COMMITS[@]} -gt 0 ]; then
              echo "### Other Changes" >> /tmp/release_notes.md
              for commit in "${OTHER_COMMITS[@]}"; do
                echo "- $commit" >> /tmp/release_notes.md
              done
              echo "" >> /tmp/release_notes.md
            fi
          fi

          {
            echo "changelog<<EOF"
            cat /tmp/release_notes.md
            echo "EOF"
          } >> $GITHUB_OUTPUT

      - name: Check if release needed
        id: check_release
        run: |
          LATEST_TAG="${{ steps.get_latest_tag.outputs.latest_tag }}"

          if [ "$LATEST_TAG" = "v0.0.0" ]; then
            COMMIT_COUNT=$(git rev-list --count HEAD)
          else
            COMMIT_COUNT=$(git rev-list --count $LATEST_TAG..HEAD)
          fi

          if [ "$COMMIT_COUNT" -eq 0 ]; then
            echo "needs_release=false" >> $GITHUB_OUTPUT
          else
            echo "needs_release=true" >> $GITHUB_OUTPUT
          fi

      - name: Create Release
        if: steps.check_release.outputs.needs_release == 'true'
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.new_version.outputs.new_version }}
          name: Release ${{ steps.new_version.outputs.new_version }}
          body: ${{ steps.changelog.outputs.changelog }}
          draft: false
          prerelease: false

      - name: Update CHANGELOG.md
        if: steps.check_release.outputs.needs_release == 'true'
        run: |
          NEW_VERSION="${{ steps.new_version.outputs.new_version }}"
          DATE=$(date +%Y-%m-%d)

          {
            echo "## [$NEW_VERSION] - $DATE"
            echo ""
            tail -n +3 /tmp/release_notes.md
            echo ""
          } > /tmp/changelog_entry.md

          if [ -f CHANGELOG.md ]; then
            awk '/^---$/ { print; system("cat /tmp/changelog_entry.md"); next }1' CHANGELOG.md > /tmp/new_changelog.md
            mv /tmp/new_changelog.md CHANGELOG.md
          fi

          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

          if ! git diff --quiet CHANGELOG.md; then
            git add CHANGELOG.md
            git commit -m "chore: update CHANGELOG for $NEW_VERSION [skip ci]"
            git push origin main
          fi