housekeeping: Enable release build

Author: glennawatson

.github/workflows/release.yml

@@ -0,0 +1,90 @@
+name: Build and Release
+
+on:
+  push:
+    branches: [ main ]
+
+env:
+  configuration: Release
+  productNamespacePrefix: "ReactiveMarbles"
+
+jobs:
+  release:
+    runs-on: windows-2022
+    environment:
+      name: release
+    outputs:
+      nbgv: ${{ steps.nbgv.outputs.SemVer2 }}
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2.3.4
+      with:
+        fetch-depth: 0
+
+    - name: Install .NET Core
+      uses: actions/setup-dotnet@v1.8.2
+      with:
+        dotnet-version: 3.1.x
+
+    - name: Install .NET 5
+      uses: actions/setup-dotnet@v1.8.2
+      with:
+        dotnet-version: 5.0.x
+
+    - name: Install .NET 6
+      uses: actions/setup-dotnet@v1.8.2
+      with:
+        dotnet-version: 6.0.x
+        include-prerelease: true
+        
+    - name: NBGV
+      id: nbgv
+      uses: dotnet/nbgv@master
+      with:
+        setAllVars: true
+
+    - name: NuGet Restore
+      run: dotnet restore
+      working-directory: src
+      
+    - name: Build
+      run: dotnet build --configuration=${{ env.configuration }} --verbosity=minimal --no-restore
+      working-directory: src
+
+    - uses: nuget/setup-nuget@v1
+      name: Setup NuGet
+
+    - name: Pack
+      run: dotnet pack --configuration=${{ env.configuration }} --verbosity=minimal --no-restore
+      working-directory: src
+
+    # Decode the base 64 encoded pfx and save the Signing_Certificate
+    - name: Sign NuGet packages
+      shell: pwsh
+      run: |
+        $pfx_cert_byte = [System.Convert]::FromBase64String("${{ secrets.SIGNING_CERTIFICATE }}")
+        [IO.File]::WriteAllBytes("GitHubActionsWorkflow.pfx", $pfx_cert_byte)
+        $secure_password = ConvertTo-SecureString ${{ secrets.SIGN_CERTIFICATE_PASSWORD }} –asplaintext –force
+        Import-PfxCertificate -FilePath GitHubActionsWorkflow.pfx -Password $secure_password -CertStoreLocation Cert:\CurrentUser\My
+        nuget sign -Timestamper http://timestamp.digicert.com -CertificateFingerprint ${{ secrets.SIGN_CERTIFICATE_HASH }} **/*.nupkg
+        
+    - name: Changelog
+      uses: glennawatson/ChangeLog@v1
+      id: changelog
+
+    - name: Create Release
+      uses: actions/create-release@v1.1.4
+      env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
+      with:
+          tag_name: ${{ steps.nbgv.outputs.SemVer2 }}
+          release_name: ${{ steps.nbgv.outputs.SemVer2 }}
+          body: |
+            ${{ steps.changelog.outputs.commitLog }}
+            
+    - name: NuGet Push
+      env:
+        NUGET_AUTH_TOKEN: ${{ secrets.NUGET_API_KEY }}
+        SOURCE_URL: https://api.nuget.org/v3/index.json
+      run: |
+        dotnet nuget push -s ${{ env.SOURCE_URL }} -k ${{ env.NUGET_AUTH_TOKEN }} **/*.nupkg