release.yml

name: Create Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

jobs:
  create-release:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up build environment
        run: |
          sudo apt-get update
          sudo apt-get install -y cmake build-essential libcmocka-dev lcov python3

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

          # Find previous tag
          PREV_TAG=$(git describe --tags --abbrev=0 ${GITHUB_REF}^ 2>/dev/null || echo "")
          if [ -z "$PREV_TAG" ]; then
            # If no previous tag, get the first commit
            PREV_TAG=$(git rev-list --max-parents=0 HEAD)
          fi
          echo "prev_tag=$PREV_TAG" >> $GITHUB_OUTPUT

      - name: Build with Coverage
        run: |
          cmake -B build -DCMAKE_BUILD_TYPE=Debug -DENABLE_COVERAGE=ON
          cmake --build build

      - name: Run Tests
        id: tests
        run: |
          cd build
          # distinct output file for parsing
          ctest --output-on-failure | tee test_output.log

          # Simple parsing for summary stats
          PASSED=$(grep -oE '[0-9]+% tests passed' test_output.log | grep -oE '[0-9]+' || echo "0")
          TOTAL=$(grep -oE '[0-9]+ tests failed out of [0-9]+' test_output.log | awk '{print $6}' || echo "0")
          if [ "$TOTAL" = "0" ]; then
             # If 100% passed, grep matches "X tests passed, 0 tests failed out of Y"
             TOTAL=$(grep -oE 'out of [0-9]+' test_output.log | awk '{print $3}' | head -n1 || echo "0")
          fi

          # Calculate Passed count
          COUNT_PASSED=$(echo "$TOTAL * $PASSED / 100" | bc)

          echo "{\"total\": $TOTAL, \"passed\": $COUNT_PASSED}" > ../test_stats.json

      - name: Generate Coverage Report
        run: |
          cd build
          lcov --capture --directory . --output-file coverage.info
          lcov --remove coverage.info '/usr/*' '*/tests/*' '*/examples/*' --output-file coverage.filtered.info --ignore-errors unused
          lcov --list coverage.filtered.info > ../coverage_summary.txt || echo "Coverage: N/A" > ../coverage_summary.txt

          # Extract percentage for summary file (e.g. "lines......: 85.5%")
          grep "lines......:" ../coverage_summary.txt | awk '{print $2}' > ../coverage_percent.txt || echo "N/A" > ../coverage_percent.txt

      - name: Generate Release Notes
        id: notes
        run: |
          # Use our helper script
          python3 tools/generate_release_notes.py \
            "${{ steps.version.outputs.version }}" \
            "${{ steps.version.outputs.prev_tag }}" \
            "test_stats.json" \
            "coverage_percent.txt" > release_notes.md

          # Cat to console for debugging
          cat release_notes.md

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: ${{ steps.version.outputs.tag }}
          name: iolinki ${{ steps.version.outputs.version }}
          body_path: release_notes.md
          draft: false
          prerelease: false
          files: |
            build/examples/simple_device/simple_device
            build/tests/test_init
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  back-merge-develop:
    needs: create-release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Merge Main to Develop
        run: |
          git config user.name "GitHub Actions"
          git config user.email "actions@github.com"
          git checkout develop
          git merge origin/main
          git push origin develop