added workflows

.gitea/workflows/publish-nuget.yaml

@@ -0,0 +1,35 @@
+name: .NET Publish
+
+on:
+  push:
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+'
+      - 'v[0-9]+.[0-9]+.[0-9]+-rc[0-9]+'
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Setup .NET
+      uses: https://github.com/actions/setup-dotnet@v3
+      with:
+        dotnet-version: 8.x
+
+    - name: Restore dependencies
+      run: dotnet restore Core/Core.csproj
+
+    - name: Create the package
+      env:
+        RELEASE_VERSION: ${{ gitea.ref_name }}
+      run: >
+        dotnet pack --no-restore --configuration Release --output nupkgs Core/Core.csproj
+        `echo $RELEASE_VERSION | sed -E 's|^(v([0-9]+(\.[0-9]+){2}))(-([a-z0-9]+)){1}|/p:ReleaseVersion=\2 /p:VersionSuffix=\5|; s|^(v([0-9]+(\.[0-9]+){2}))$|/p:ReleaseVersion=\2|'`
+
+    - name: Publish the package to Gitea
+      run: dotnet nuget push --source ${{ vars.OUTPUT_NUGET_REGISTRY }} --api-key ${{ secrets.LOCAL_NUGET_PACKAGE_TOKEN }} nupkgs/*.nupkg
+
+    - name: Publish the package to NuGet.org
+      run: dotnet nuget push --source https://api.nuget.org/v3/index.json --api-key ${{ secrets.NUGET_PACKAGE_TOKEN }} nupkgs/*.nupkg