Add CI

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+on: [push, pull_request]
+name: ci
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install protoc
+        run: sudo apt-get install -y protobuf-compiler
+
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          profile: minimal
+          override: true
+          components: rustfmt, clippy
+
+      - name: Run cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings
+
+      - name: Run cargo fmt --check
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+      - name: Run cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test