ci.yml

name: CI

on:
  push:
  pull_request:

jobs:

  build-nuget:
    if: github.event_name == 'push' || github.event.pull_request.head.repo.id != github.event.pull_request.base.repo.id
    name: Build NuGet package
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v3
    - name: Setup .NET SDK
      uses: actions/setup-dotnet@v3
      with:
        dotnet-version: 7.0.x
    - name: Build project
      run: dotnet build src/SemanticVersioning --configuration=Release
    - name: Build NuGet package
      run: dotnet pack src/SemanticVersioning --configuration=Release --no-build --output nuget
    - name: Upload NuGet artifact
      uses: actions/upload-artifact@v4.4.0
      with:
        name: nuget-package
        path: nuget

  test-nuget:
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest]
        dotnet: [net6.0, net7.0]
        include:
        - os: windows-latest
          dotnet: net472
      fail-fast: false
    name: Test NuGet package (${{ matrix.dotnet }} on ${{ matrix.os }})
    runs-on: ${{ matrix.os }}
    needs: build-nuget
    steps:
    - name: Checkout
      uses: actions/checkout@v3
    - name: Get version
      id: get-version
      run: echo "version=$((Select-Xml -Path ./src/SemanticVersioning/SemanticVersioning.csproj -XPath '/Project/PropertyGroup/Version/text()').node.Value)" >> $env:GITHUB_OUTPUT
      shell: pwsh
    - name: Download NuGet artifact
      uses: actions/download-artifact@v4.1.8
      with:
        name: nuget-package
        path: nuget
    - name: Setup .NET 6 SDK
      if: matrix.dotnet == 'net6.0'
      uses: actions/setup-dotnet@v3
      with:
        dotnet-version: 6.0.x
    - name: Setup .NET 7 SDK
      uses: actions/setup-dotnet@v3
      with:
        dotnet-version: 7.0.x
    - name: Add local NuGet feed
      run: |
        dotnet new nugetconfig
        dotnet nuget add source -n local $PWD/nuget
    - name: Change test project references to use local NuGet package
      run: |
        dotnet remove test/SemanticVersioning.Tests reference src/SemanticVersioning/SemanticVersioning.csproj
        dotnet add test/SemanticVersioning.Tests package SemanticVersioning -v ${{ steps.get-version.outputs.version }}
    - name: Build & Run .NET unit tests
      run: dotnet test test/SemanticVersioning.Tests --configuration=Release --framework ${{ matrix.dotnet }}

  publish-release:
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/') && !github.event.repository.fork
    name: Publish release
    runs-on: ubuntu-latest
    needs: test-nuget
    steps:
    - name: Checkout
      uses: actions/checkout@v3
    - name: Check version
      id: check-version
      shell: pwsh
      run: |
        $version = (Select-Xml -Path ./src/SemanticVersioning/SemanticVersioning.csproj -XPath '/Project/PropertyGroup/Version/text()').node.Value
        $tag = "${{ github.ref }}".SubString(10)
        if (-not ($tag -eq $version)) {
          echo "::error ::There is a mismatch between the project version ($version) and the tag ($tag)"
          exit 1
        }
        echo "version=$version" >> $env:GITHUB_OUTPUT
    - name: Download NuGet artifact
      uses: actions/download-artifact@v4.1.8
      with:
        name: nuget-package
        path: nuget
    - name: Publish to NuGet
      run: dotnet nuget push nuget/SemanticVersioning.${{ steps.check-version.outputs.version }}.nupkg --api-key ${{ secrets.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json