chore: Add support for GitHub Packages

| GITHUB_REF    | version format                                   |
|---------------|--------------------------------------------------|
| refs/heads/   | #.#.#-ci.{%Y%m%d}T{%H%M%S}+sha.${GITHUB_SHA:0:9} |
| refs/pull/    | #.#.#-pr.{%Y%m%d}T{%H%M%S}+sha.${GITHUB_SHA:0:9} |
| refs/tags/v*  | #.#.#                                            |

See: open-feature#54

Signed-off-by: Austin Drenski <austin@austindrenski.io>

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
 
     - name: Run Tests
       run: dotnet test test/OpenFeature.Tests/ --configuration Release --logger:"console;verbosity=detailed"
-  
+
   unit-tests-windows:
     runs-on: windows-latest
     steps:
@@ -44,3 +44,39 @@ jobs:
 
     - name: Run Tests
       run: dotnet test test\OpenFeature.Tests\ --configuration Release --logger:"console;verbosity=detailed"
+
+  packaging:
+    needs:
+    - unit-tests-linux
+    - unit-tests-windows
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET SDK
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: |
+          6.0.x
+          7.0.x
+
+    - name: Restore
+      run: dotnet restore
+
+    - name: Pack NuGet packages (CI versions)
+      if: startsWith(github.ref, 'refs/heads/')
+      run: dotnet pack --no-restore --version-suffix "ci.$(date -u +%Y%m%dT%H%M%S)+sha.${GITHUB_SHA:0:9}"
+
+    - name: Pack NuGet packages (PR versions)
+      if: startsWith(github.ref, 'refs/pull/')
+      run: dotnet pack --no-restore --version-suffix "pr.$(date -u +%Y%m%dT%H%M%S)+sha.${GITHUB_SHA:0:9}"
+
+    - name: Pack NuGet packages (Release versions)
+      if: startsWith(github.ref, 'refs/tags/v')
+      run: dotnet pack --no-restore
+
+    - name: Publish NuGet packages
+      if: startsWith(github.ref, 'refs/heads/') || startsWith(github.ref, 'refs/pull/') || startsWith(github.ref, 'refs/tags/v')
+      run: dotnet nuget push "src/**/*.nupkg" --api-key "${GITHUB_TOKEN}" --source https://nuget.pkg.github.com/open-feature/index.json

build/Common.prod.props

@@ -2,7 +2,10 @@
   <Import Project=".\Common.props" />
 
   <PropertyGroup>
+    <ContinuousIntegrationBuild Condition="'$(CI)' == 'true'">true</ContinuousIntegrationBuild>
+    <Deterministic Condition="'$(CI)' == 'true'">true</Deterministic>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <PackRelease>true</PackRelease>
   </PropertyGroup>
 
   <PropertyGroup>

build/Common.props

@@ -26,4 +26,8 @@
   <ItemGroup>
     <PackageReference Include="System.Collections.Immutable" Version="[1.7.1, 8.0.0)" />
   </ItemGroup>
+
+  <ItemGroup Condition="'$(OS)' == 'Unix'">
+    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="all" />
+  </ItemGroup>
 </Project>

nuget.config

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<configuration>
+
+  <packageSources>
+    <add key="nuget" value="https://api.nuget.org/v3/index.json" />
+    <add key="github-open-feature" value="https://nuget.pkg.github.com/open-feature/index.json" />
+  </packageSources>
+
+  <packageSourceMapping>
+    <packageSource key="nuget">
+      <package pattern="*" />
+    </packageSource>
+    <packageSource key="github-open-feature">
+      <package pattern="OpenFeature" />
+      <package pattern="OpenFeature.*" />
+    </packageSource>
+  </packageSourceMapping>
+
+</configuration>