Github action CI (run test + publish release)

Author: myxo

.github/workflows/ci.yml

@@ -0,0 +1,70 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - master
+    tags:
+      - "v*"
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: true
+
+      - name: Run tests
+        run: go test ./...
+
+      - name: Cross-compile binaries
+        run: |
+          mkdir -p dist
+          for GOOS in linux darwin; do
+            for GOARCH in amd64 arm64; do
+              bin="dist/drawbridge-${GOOS}-${GOARCH}"
+              GOOS=$GOOS GOARCH=$GOARCH CGO_ENABLED=0 go build -o "$bin" .
+            done
+          done
+
+  release:
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: test
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: true
+
+      - name: Build release binaries
+        run: |
+          mkdir -p dist
+          for GOARCH in amd64 arm64; do
+            bin="dist/drawbridge-linux-${GOARCH}"
+            GOOS=$GOOS GOARCH=$GOARCH CGO_ENABLED=0 go build -o "$bin" .
+          done
+
+      - name: Publish release
+        uses: softprops/action-gh-release@v2
+        with:
+          name: ${{ github.ref_name }}
+          tag_name: ${{ github.ref_name }}
+          files: dist/*