add build.yml

Author: niltor

.github/workflows/build.yml

@@ -0,0 +1,44 @@
+name: Build and Publish to NuGet
+
+on:
+  push:
+    branches:
+      - nuget
+    tags:
+      - 'v*'
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write  # Enable GitHub OIDC token issuance for this job
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '10.0.x'
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --configuration Release --no-restore
+
+      - name: Run tests
+        run: dotnet test --configuration Release --no-build --verbosity normal
+
+      - name: Pack NuGet package
+        run: dotnet pack src/Perigon.MiniDb/Perigon.MiniDb.csproj --configuration Release --output ./artifacts --no-build
+
+      - name: NuGet login (OIDC → temp API key)
+        uses: NuGet/login@v1
+        id: nuget-login
+        with:
+          user: ${{ secrets.NUGET_USER }}
+
+      - name: Publish to NuGet
+        run: dotnet nuget push ./artifacts/*.nupkg --api-key ${{ steps.nuget-login.outputs.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json --skip-duplicate