add github actions

.github/workflows/build.yml

@@ -0,0 +1,48 @@
+name: build
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Info
+        run: echo 'Building ${{ github.ref }}'
+
+      - uses: actions/checkout@v2
+
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 9.0.100
+
+      - name: Start MongoDB
+        uses: supercharge/mongodb-github-action@1.11.0
+        with:
+          mongodb-version: '8.0'
+
+      - name: Build & Test
+        run: make test config=Release
+
+  publish:
+    if: contains(github.ref, 'refs/tags/')
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Info
+        run: echo 'Building ${{ github.ref }}'
+
+      - uses: actions/checkout@v1
+
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 9.0.100
+
+      - name: Build nuget
+        run: make nuget config=Release version=${GITHUB_REF#refs/tags/} 
+
+      - name: publish nuget
+        run: make publish nugetkey=${{secrets.NUGET_KEY}}

Makefile

@@ -0,0 +1,17 @@
+config ?= Debug
+version ?= 0.0.0
+
+
+build:
+	dotnet build
+
+test:
+	dotnet test
+
+nuget:
+	dotnet pack -c $(config) -p:Version=$(version) -o .out
+
+publish: .out/*.nupkg
+	@for file in $^ ; do \
+		dotnet nuget push $$file -k $(nugetkey) -s https://api.nuget.org/v3/index.json --skip-duplicate ; \
+    done