codecoverage.yml

name: Code Coverage

on:
  push:
    # branches to consider in the event; optional, defaults to all
    branches:
      - main
  workflow_dispatch:

jobs:  
  codecoverage:
    name: "Code Coverage"
    env:
        ASPNETCORE_ENVIRONMENT: "Production"

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2.3.4    

    - name: Restore Nuget Packages
      run: dotnet restore Shared.sln --source ${{ secrets.PUBLICFEEDURL }} --source ${{ secrets.PRIVATEFEED_URL }}

    - name: Build Code
      run: dotnet build Shared.sln --configuration Release

    - name: Run Unit Tests
      run: |
        echo "ASPNETCORE_ENVIRONMENT are > ${ASPNETCORE_ENVIRONMENT}"
        dotnet test "Shared.Tests/Shared.Tests.csproj" \
            --results-directory "coverage/Shared.Tests" \
            --coverlet --coverlet-output-format lcov --coverlet-file-prefix Shared.Tests \
            --coverlet-exclude "[xunit*]*" \
            --coverlet-exclude-by-attribute Obsolete \
            --coverlet-exclude-by-attribute GeneratedCodeAttribute \
            --coverlet-exclude-by-attribute CompilerGeneratedAttribute \
            --coverlet-exclude-by-attribute ExcludeFromCodeCoverageAttribute

        dotnet test "Shared.EventStore.Tests/Shared.EventStore.Tests.csproj" \
            --results-directory "coverage/Shared.EventStore.Tests" \
            --coverlet --coverlet-output-format lcov --coverlet-file-prefix Shared.EventStore.Tests \
            --coverlet-exclude "[xunit*]*" \
            --coverlet-exclude-by-attribute Obsolete \
            --coverlet-exclude-by-attribute GeneratedCodeAttribute \
            --coverlet-exclude-by-attribute CompilerGeneratedAttribute \
            --coverlet-exclude-by-attribute ExcludeFromCodeCoverageAttribute

    - name: Inspect coverage reports
      run: |
        echo "Files produced under coverage/:"
        find coverage -type f -print

        mapfile -t reports < <(find coverage -type f -name '*.info' -print)
        if [ ${#reports[@]} -eq 0 ]; then
          echo "::error::No LCOV reports were generated by the test runs."
          exit 1
        fi

        for report in "${reports[@]}"; do
          echo "--- $report ($(wc -c < "$report") bytes) ---"
          if [ ! -s "$report" ]; then
            echo "::error::LCOV report is empty: $report"
            exit 1
          fi
          grep '^SF:' "$report" || true
        done

    - name: Install LCOV merger
      run: npm install -g lcov-result-merger

    - name: Merge LCOV reports
      run: |
        set -euo pipefail
        mapfile -t reports < <(find coverage -type f -name '*.info' -print)
        if [ ${#reports[@]} -eq 0 ]; then
          echo "::error::No LCOV reports found to merge."
          exit 1
        fi
        lcov-result-merger "coverage/**/*.info" > lcov.info
        if [ ! -s lcov.info ] || ! grep -q '^SF:' lcov.info; then
          echo "::error::The merged LCOV report is empty or has no source-file records."
          exit 1
        fi
        echo "Merged report source files:"
        grep '^SF:' lcov.info

    - name: Upload merged coverage to Codacy
      uses: codacy/codacy-coverage-reporter-action@v1
      with:
        project-token: ${{ secrets.CODACY_PROJECT_TOKEN }}
        coverage-reports: ./lcov.info