Feat#: add CI/CD build

Add CI/CD for the solution in two stages:
- Build the native library on a windows-latest runner
- Assemble the final NuGet package from the native library

The location of the native library during the build process is not
really optimal, but works well enough.

Triggers on both pushes and release published events; NuGet package is
only published on release published.

Author: j4lc

.github/workflows/build-publish.yml

@@ -0,0 +1,76 @@
+name: 'Build and release NuGet package'
+
+on:
+  push:
+  release:
+    types:
+      - published
+
+jobs:
+  build-native:
+    name: 'Build native library'
+    runs-on: windows-latest
+
+    outputs:
+      native-id: ${{ steps.artup.outputs.artifact-id }}
+
+    steps:
+      - name: 'Checkout repo'
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: 'Install msbuild'
+        uses: microsoft/setup-msbuild@30375c66a4eea26614e0d39710365f22f8b0af57 # v3
+
+      - name: 'Install NuGet'
+        uses: NuGet/setup-nuget@fd55a6f3b34392fa83fde1454582407d8c714123 # v4.0
+
+      - name: 'Restore NuGet packages'
+        run: nuget restore Native\ApplicationLoopback.vcxproj -PackagesDirectory Native\packages
+
+      - name: 'Build project'
+        run: msbuild /t:build /p:Platform=x64 /p:Configuration=Release Native\ApplicationLoopback.vcxproj
+
+      - name: 'Upload artifact'
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        id: artup
+        with:
+          name: 'native-lib'
+          path: Native\x64\Release\ApplicationLoopback.dll
+
+  build-publish:
+    name: 'Build and push NuGet'
+    runs-on: ubuntu-latest
+
+    needs:
+      - build-native
+
+    env:
+      IS_RELEASE: ${{ github.event_name == 'release' && github.event.action == 'published' }}
+
+    steps:
+      - name: 'Checkout repo'
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: 'Download native lib'
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          artifact-ids: ${{ needs.build-native.outputs.native-id }}
+
+      - name: 'Build NuGet'
+        uses: Yellow-Dog-Man/composite-actions-templates/.github/actions/dotnet-build@606ac289d701be7b7d90e5ff8647dedf57d6d755 # main
+        with:
+          dotnet-build-args: ${{ env.IS_RELEASE == 'true' && format('-p:Version={0} -o nupkgs', github.ref_name) || '-o nupkgs' }}
+          dotnet-project-path: 'ApplicationLoopback.NET/ApplicationLoopback.NET/ApplicationLoopback.NET.csproj'
+          dotnet-build-type: 'pack'
+
+      - name: 'Upload artifact'
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: 'nuget-packages'
+          path: nupkgs/*.nupkg
+
+      - name: 'Push nuget'
+        if: ${{ env.IS_RELEASE == 'true' }}
+        uses: Yellow-Dog-Man/composite-actions-templates/.github/actions/dotnet-build-push-nuget@606ac289d701be7b7d90e5ff8647dedf57d6d755 # main
+        with:
+           dotnet-nuget-auth-token: ${{ secrets.NUGET_TOKEN }}

ApplicationLoopback.NET/ApplicationLoopback.NET/ApplicationLoopback.NET.csproj

@@ -3,16 +3,15 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
+    
+    <PackageId>YellowDogMan.ApplicationLoobpack.NET</PackageId>
   </PropertyGroup>
 
   <ItemGroup>
-    <None Remove="ApplicationLoopback.dll" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <Content Include="ApplicationLoopback.dll">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
+    <None Include="../../ApplicationLoopback.dll"
+          Pack="true"
+          PackagePath="runtimes/win-x64/native/"
+          CopyToOutputDirectory="PreserveNewest" />
   </ItemGroup>
 
   <ItemGroup>