add macos build job

.github/workflows/release-showbridge.yaml

@@ -110,6 +110,44 @@ jobs:
           name: showbridge-windows
           path: |
             showbridge_*.zip
+  macos:
+    runs-on: macos-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+      - name: setup go
+        uses: actions/setup-go@v6
+        with:
+          go-version-file: "go.mod"
+      - name: setup zig
+        uses: mlugg/setup-zig@v2
+        with:
+          version: 0.16.0
+      - name: setup env variables
+        run: |
+          echo "SHOWBRIDGE_VERSION=${GITHUB_REF_NAME}" >> $GITHUB_ENV
+          echo "SHORT_COMMIT=${GITHUB_SHA::7}" >> $GITHUB_ENV
+      - name: clean tag
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: echo "SHOWBRIDGE_VERSION=${SHOWBRIDGE_VERSION#v}" >> $GITHUB_ENV
+      - name: build amd64
+        run: |
+          SDK_PATH=$(xcrun --show-sdk-path) CGO_ENABLED=1 GOOS=darwin GOARCH=amd64 CC="clang -arch x86_64 -isysroot $SDK_PATH" CXX="clang++ -arch x86_64 -isysroot $SDK_PATH" go build -o showbridge -ldflags="-s -w -X main.version=${SHOWBRIDGE_VERSION}-${SHORT_COMMIT}" ./cmd/showbridge
+          tar -czf showbridge_${SHOWBRIDGE_VERSION}_macOS-amd64.tar.gz showbridge
+      - name: build arm64
+        run: |
+          SDK_PATH=$(xcrun --show-sdk-path) CGO_ENABLED=1 GOOS=darwin GOARCH=arm64 CC="clang -arch arm64 -isysroot $SDK_PATH" CXX="clang++ -arch arm64 -isysroot $SDK_PATH" go build -o showbridge -ldflags="-s -w -X main.version=${SHOWBRIDGE_VERSION}-${SHORT_COMMIT}" ./cmd/showbridge
+          tar -czf showbridge_${SHOWBRIDGE_VERSION}_macOS-arm64.tar.gz showbridge
+
+      - name: upload macos artifacts
+        uses: actions/upload-artifact@v7
+        if: github.event_name == 'workflow_dispatch'
+        with:
+          name: showbridge-macos
+          path: |
+            showbridge_*.tar.gz
   docker:
     runs-on: ubuntu-latest
     needs: linux_amd64