release-nuget.yml

name: Build & Publish NuGet

on:
  push:
    branches:
      - release       # run when pushing to the release branch
  workflow_dispatch:   # optional manual trigger

jobs:
  build-pack-push:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v6

      - name: Setup .NET
        uses: actions/setup-dotnet@v5
        with:
          dotnet-version: '9.0.x'

      # Read base version from central config file and build full version
      - name: Determine version
        id: version
        run: |
          BASE_VERSION=$(cat VERSION.txt)
          echo "Base version: $BASE_VERSION"
          FULL_VERSION="$BASE_VERSION.${GITHUB_RUN_NUMBER}"
          echo "Full version: $FULL_VERSION"
          echo "BASE_VERSION=$BASE_VERSION" >> $GITHUB_OUTPUT
          echo "FULL_VERSION=$FULL_VERSION" >> $GITHUB_OUTPUT

      # Find solution file dynamically (first .sln we encounter)
      - name: Locate solution file
        id: solution
        run: |
          SOLUTION=$(find . -maxdepth 5 -name "*.sln" | head -n 1)
          if [ -z "$SOLUTION" ]; then
            echo "❌ No solution file (*.sln) found in the repo."
            exit 1
          fi
          echo "Found solution: $SOLUTION"
          echo "SOLUTION_PATH=$SOLUTION" >> $GITHUB_OUTPUT

      # Restore using the solution
      - name: Restore
        run: dotnet restore "${{ steps.solution.outputs.SOLUTION_PATH }}"
      
      # Pack all packable projects in the solution into ./artifacts with unified version
      - name: Pack all NuGet projects
        run: dotnet pack "./FluentAAS/FluentAAS.sln" -c Release -o ./artifacts /p:PackageVersion=${{ steps.version.outputs.FULL_VERSION }}
      
      # Publish NuGet packages to nuget.org
      - name: Publish to NuGet
        run: dotnet nuget push "./artifacts/*.nupkg" \
          --api-key ${{ secrets.NUGET_API_KEY }} \
          --source https://api.nuget.org/v3/index.json \
          --skip-duplicate

      # Build changelog / release notes automatically using release-changelog-builder
      - name: Build Changelog
        id: build_changelog
        uses: mikepenz/release-changelog-builder-action@v6
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          fetchReleaseInformation: "true"
          failOnError: "true"

      # Upload artifacts to the workflow run (extra manual download option)
      - name: Upload NuGet Artifacts
        uses: actions/upload-artifact@v4
        with:
          name: nuget-packages-${{ steps.version.outputs.FULL_VERSION }}
          path: ./artifacts/*.nupkg

      # Create GitHub Release with generated changelog and attach .nupkg files
      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: v${{ steps.version.outputs.FULL_VERSION }}
          name: FluentAAS v${{ steps.version.outputs.FULL_VERSION }}
          body: ${{ steps.build_changelog.outputs.changelog }}
          files: ./artifacts/*.nupkg
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}