csharp_release.yml

name: Publish Release To NuGet

on:
  release:
    types: [ published ] # Trigger on published pre-releases and releases
  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag name'
        required: true
        default: 'v4.1.0'

jobs:
  variables:
    name: Set Variables
    runs-on: ubuntu-latest
    env:
      TAG: ${{ github.event.release.tag_name || github.event.inputs.tag }}
    steps:
      - name: Extract semantic version from tag
        id: set_version
        run: |
          # Remove the "v" prefix if it exists and extract the semantic version number
          SEMANTIC_VERSION=$(echo "${TAG}" | grep -Po "(?<=^|[^0-9])([0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?(-[a-zA-Z]+[0-9]*)?)")
          SEMANTIC_VERSION=${SEMANTIC_VERSION#"v"}
          if [ -z "${SEMANTIC_VERSION}" ]; then
            echo "Error: Tag '${TAG}' does not start with a valid semantic version number (e.g., #.#.#; #.#.#.#; #.#.#.#-beta)"
            exit 1
          fi
          echo "Extracted semantic version: ${SEMANTIC_VERSION}"
          echo "semantic_version=${SEMANTIC_VERSION}" >> $GITHUB_OUTPUT
    outputs:
      tag: ${{ env.TAG }}
      semanticVersion: ${{ steps.set_version.outputs.semantic_version }}
  
  buildFrameworkVersions:
    name: Build .NET Framework versions
    needs: [ variables ]
    runs-on: windows-2019 # required version for Framework 4.0
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ needs.variables.outputs.tag }}
      - name: Add msbuild to PATH
        uses: microsoft/setup-msbuild@v2
      - name: Setup NuGet
        uses: nuget/setup-nuget@v2
      - name: Restore NuGet packages
        run: nuget restore ./OptimizelySDK.NETFramework.sln
      - name: Build and strongly name assemblies
        run: msbuild /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=$(pwd)/keypair.snk /p:Configuration=Release ./OptimizelySDK.NETFramework.sln
      - name: Upload Framework artifacts
        uses: actions/upload-artifact@v4
        with:
          name: unsigned-dlls-framework
          if-no-files-found: error
          path: ./**/bin/Release/**/Optimizely*.dll

  buildStandard16:
    name: Build .NET 1.6 version
    needs: [ variables ]
    runs-on: windows-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ needs.variables.outputs.tag }}
      - name: Setup .NET
        uses: actions/setup-dotnet@v4
      - name: Restore dependencies
        run: dotnet restore OptimizelySDK.NetStandard16/OptimizelySDK.NetStandard16.csproj
      - name: Build and strongly name assemblies
        run: dotnet build OptimizelySDK.NetStandard16/OptimizelySDK.NetStandard16.csproj /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=$(pwd)/keypair.snk -c Release
      - name: Upload Standard 1.6 artifact
        uses: actions/upload-artifact@v4
        with:
          name: unsigned-dlls-standard16
          if-no-files-found: error
          path: ./**/bin/Release/**/Optimizely*.dll

  buildStandard20:
    name: Build .NET 2.0 version
    needs: [ variables ]
    runs-on: windows-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ needs.variables.outputs.tag }}
      - name: Setup .NET
        uses: actions/setup-dotnet@v4
      - name: Restore dependencies
        run: dotnet restore OptimizelySDK.NetStandard20/OptimizelySDK.NetStandard20.csproj
      - name: Build and strongly name Standard 2.0 project
        run: dotnet build OptimizelySDK.NetStandard20/OptimizelySDK.NetStandard20.csproj /p:SignAssembly=true /p:AssemblyOriginatorKeyFile=$(pwd)/keypair.snk -c Release
      - name: Build and strongly name assemblies
        uses: actions/upload-artifact@v4
        with:
          name: unsigned-dlls-standard20
          if-no-files-found: error
          path: ./**/bin/Release/**/Optimizely*.dll
          
  combineArtifacts:
    name: Combine artifacts
    needs: [ variables, buildFrameworkVersions, buildStandard16, buildStandard20 ]
    runs-on: ubuntu-latest
    steps:
      - name: Download Framework artifacts
        uses: actions/download-artifact@v4
        with:
          name: unsigned-dlls-framework
      - name: Download Standard 1.6 artifacts
        uses: actions/download-artifact@v4
        with:
          name: unsigned-dlls-standard16
      - name: Download Standard 2.0 artifacts
        uses: actions/download-artifact@v4
        with:
          name: unsigned-dlls-standard20
      - name: Combine artifacts
        run: |
          mkdir -p ./unsigned-dlls
          mv ./unsigned-dlls-framework/**/Optimizely*.dll ./unsigned-dlls/
          mv ./unsigned-dlls-standard16/**/Optimizely*.dll ./unsigned-dlls/
          mv ./unsigned-dlls-standard20/**/Optimizely*.dll ./unsigned-dlls/
      - name: Upload combined artifacts
        uses: actions/upload-artifact@v4
        with:
          name: unsigned-dlls
          if-no-files-found: error

  sign:
    name: Send DLLs for signing
    needs: [ variables, buildFrameworkVersions, buildStandard16, buildStandard20 ]
    runs-on: ubuntu-latest
    env:
      # TODO: Replace actual values
      SIGNING_SERVER_PRIVATE_KEY: ${{ secrets.SIGNING_SERVER_PRIVATE_KEY }}
      SIGNING_SERVER_HOST: ${{ secrets.SIGNING_SERVER_HOST }}
      SIGNING_SERVER_UPLOAD_PATH: /path/to/UPLOAD/directory
      SIGNING_SERVER_DOWNLOAD_PATH: /path/to/DOWNLOAD/directory
    steps:
      # TODO: Remove this when we're ready to automate 
      - name: Temporarily halt progress
        run: exit 1
      - name: Download the unsigned files
        uses: actions/download-artifact@v4
        with:
          name: unsigned-dlls
          path: ./unsigned-dlls
      - name: Setup SSH
        uses: shimataro/ssh-key-action@v2
        with:
          key: $SIGNING_SERVER_PRIVATE_KEY
      - name: Send files to signing server
        run: scp -r ./unsigned-dlls $SIGNING_SERVER_HOST:$SIGNING_SERVER_UPLOAD_PATH
      - name: Wait for artifact to be published
        run: |
          for i in {1..60}; do
              # Replace with actual path
              if ssh $SIGNING_SERVER_HOST "ls $SIGNING_SERVER_DOWNLOAD_PATH"; then
              exit 0
              fi
              sleep 10
          done
          exit 1
      - name: Download signed files
        run: |
          mkdir ./signed-dlls
          scp -r $SIGNING_SERVER_HOST:$SIGNING_SERVER_DOWNLOAD_PATH ./signed-dlls
      - name: Delete signed files from server
        run: ssh $SIGNING_SERVER_HOST "rm -rf $SIGNING_SERVER_DOWNLOAD_PATH/*"
      - name: Upload signed files
        uses: actions/upload-artifact@v4
        with:
          name: signed-dlls
          if-no-files-found: error
          path: ./signed-dlls

  pack:
    name: Pack NuGet package
    needs: [ variables, sign ]
    runs-on: ubuntu-latest
    env:
      VERSION: ${{ needs.variables.outputs.semanticVersion }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ needs.variables.outputs.tag }}
      - name: Install mono
        run: |
          sudo apt update
          sudo apt install -y mono-devel
      - name: Download NuGet files
        uses: actions/download-artifact@v4
        with:
          name: signed-dlls
          path: ./signed-dlls
      - name: Organize files
        run: |
          pushd ./signed-dlls
          # Move all dlls to the root directory
          find . -type f -name "*.dll" -exec mv {} .
          popd
          # Create directories
          mkdir -p nuget/lib/net35/ nuget/lib/net40/ nuget/lib/net45/ nuget/lib/netstandard1.6/ nuget/lib/netstandard2.0/
          pushd ./nuget
          # Move files to directories
          mv ../signed-dlls/OptimizelySDK.Net35.dll lib/net35/
          mv ../signed-dlls/OptimizelySDK.Net40.dll lib/net40/
          mv ../signed-dlls/OptimizelySDK.dll lib/net45/
          mv ../signed-dlls/OptimizelySDK.NetStandard16.dll lib/netstandard1.6/
          mv ../signed-dlls/OptimizelySDK.NetStandard20.dll lib/netstandard2.0/
          popd
      - name: Create nuspec
        # Uses env.VERSION in OptimizelySDK.nuspec.template
        run: |
          chmod +x ./OptimizelySDK.nuspec.template
          ./OptimizelySDK.nuspec.template
      - name: Pack NuGet package
        run: |
          pushd ./nuget
          nuget pack OptimizelySDK.nuspec
          popd
      - name: Upload nupkg artifact
        uses: actions/upload-artifact@v4
        with:
          name: nuget-package
          if-no-files-found: error
          path: ./nuget/Optimizely.SDK.${{ env.VERSION }}.nupkg

  publish:
    name: Publish package to NuGet after reviewing the artifact
    needs: [ variables, pack ]
    runs-on: ubuntu-latest
    # Review the `nuget-package` artifact ensuring the dlls are 
    # organized and signed before approving.
    environment: 'i-reviewed-nuget-package-artifact'
    env:
      VERSION: ${{ needs.variables.outputs.semanticVersion }}
    steps:
      - name: Download NuGet files
        uses: actions/download-artifact@v4
        with:
          name: nuget-package
          path: ./nuget
      - name: Setup .NET
        uses: actions/setup-dotnet@v4
      - name: Publish NuGet package
        run: |
          dotnet nuget push ./nuget/Optimizely.SDK.${{ env.VERSION }}.nupkg --source https://api.nuget.org/v3/index.json --api-key ${{ secrets.NUGET_API_KEY }}