actions/csharp-build/action.yml

# yaml-language-server: $schema=https://json.schemastore.org/github-action.json
# permissions:
#   - contents: read  # Required for checking out repository
---
name: C# Build
description: 'Builds and tests C# projects.'
author: 'Ismo Vuorinen'

branding:
  icon: 'code'
  color: 'blue'

inputs:
  dotnet-version:
    description: 'Version of .NET SDK to use.'
    required: false
  max-retries:
    description: 'Maximum number of retry attempts for dotnet restore operations'
    required: false
    default: '3'
  token:
    description: 'GitHub token for authentication'
    required: false
    default: ''

outputs:
  build_status:
    description: 'Build completion status (success/failure)'
    value: ${{ steps.build.outputs.status }}
  test_status:
    description: 'Test execution status (success/failure/skipped)'
    value: ${{ steps.test.outputs.status }}
  dotnet_version:
    description: 'Version of .NET SDK used'
    value: ${{ steps.detect-dotnet-version.outputs.dotnet-version }}
  artifacts_path:
    description: 'Path to build artifacts'
    value: '**/bin/Release/**/*'
  test_results_path:
    description: 'Path to test results'
    value: '**/*.trx'

runs:
  using: composite
  steps:
    - name: Checkout Repository
      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
      with:
        token: ${{ inputs.token || github.token }}

    - name: Detect .NET SDK Version
      id: detect-dotnet-version
      uses: ./dotnet-version-detect
      with:
        default-version: "${{ inputs.dotnet-version || '7.0' }}"

    - name: Setup .NET SDK
      uses: actions/setup-dotnet@d4c94342e560b34958eacfc5d055d21461ed1c5d # v5.0.0
      with:
        dotnet-version: ${{ steps.detect-dotnet-version.outputs.dotnet-version }}

    - name: Cache NuGet packages
      id: cache-nuget
      uses: ./common-cache
      with:
        type: 'nuget'
        paths: '~/.nuget/packages'
        key-files: '**/*.csproj,**/*.props,**/*.targets'
        key-prefix: 'csharp-build'

    - name: Restore Dependencies
      if: steps.cache-nuget.outputs.cache-hit != 'true'
      uses: ./common-retry
      with:
        command: |
          echo "Restoring .NET dependencies..."
          dotnet restore --verbosity normal
        max-retries: ${{ inputs.max-retries }}
        description: 'Restoring .NET dependencies'

    - name: Skip Restore (Cache Hit)
      if: steps.cache-nuget.outputs.cache-hit == 'true'
      shell: bash
      run: |
        echo "Cache hit - skipping dotnet restore"

    - name: Build Solution
      id: build
      shell: bash
      run: |
        set -euo pipefail
        echo "Building .NET solution..."
        if dotnet build --configuration Release --no-restore --verbosity normal; then
          echo "status=success" >> "$GITHUB_OUTPUT"
          echo "Build completed successfully"
        else
          echo "status=failure" >> "$GITHUB_OUTPUT"
          echo "Build failed"
          exit 1
        fi

    - name: Run Tests
      id: test
      shell: bash
      run: |
        set -euo pipefail
        echo "Running .NET tests..."
        if find . -name "*.csproj" | xargs grep -lE "(Microsoft\.NET\.Test\.Sdk|xunit|nunit)" | head -1 | grep -q .; then
          if dotnet test --configuration Release --no-build \
            --collect:"XPlat Code Coverage" \
            --logger "trx;LogFileName=test-results.trx" \
            --verbosity normal; then
            echo "status=success" >> "$GITHUB_OUTPUT"
            echo "Tests completed successfully"
          else
            echo "status=failure" >> "$GITHUB_OUTPUT"
            echo "Tests failed"
            exit 1
          fi
        else
          echo "No test projects found, skipping test execution."
          echo "status=skipped" >> "$GITHUB_OUTPUT"
        fi

    - name: Upload Test Results
      if: always()
      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
      with:
        name: csharp-test-results
        path: |
          **/*.trx
          **/TestResults/**/coverage.cobertura.xml
        if-no-files-found: ignore