ci: add clippy and fmt actions

.github/workflows/ci.yml

@@ -55,3 +55,58 @@ jobs:
           command: test
           args: --all-features --verbose
   
+  clippy:
+    name: clippy (ubuntu-latest, stable)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install latest stable
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          components: clippy
+
+      - name: Cache cargo registry
+        uses: actions/cache@v1
+        with:
+          path: ~/.cargo/registry
+          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('Cargo.lock') }}
+
+      - name: Cache cargo index
+        uses: actions/cache@v1
+        with:
+          path: ~/.cargo/git
+          key: ${{ runner.os }}-cargo-index-${{ hashFiles('Cargoo.lock') }}
+
+      - name: Cache cargo build
+        uses: actions/cache@v1
+        with:
+          path: target
+          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('Cargo.lock') }}
+
+      - name: Check clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings
+  
+  fmt:
+    name: fmt (ubuntu-latest, stable)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install latest stable
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          components: rustfmt
+
+      - name: Check format
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check

README.md

@@ -1,5 +1,6 @@
 # Sonic Channel
 
+[![Build](https://github.com/pleshevskiy/sonic-channel/actions/workflows/ci.yml/badge.svg)](https://github.com/pleshevskiy/sonic-channel/actions/workflows/ci.yml)
 [![unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg)](https://github.com/rust-secure-code/safety-dance/)
 [![Documentation](https://docs.rs/sonic-channel/badge.svg)](https://docs.rs/sonic-channel)
 [![Crates.io](https://img.shields.io/crates/v/sonic-channel)](https://crates.io/crates/sonic-channel)