Create code_style.yml

.github/workflows/code_style.yml

@@ -0,0 +1,29 @@
+name: Code Style
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  codestyle:
+    name: Code Style (fmt + clippy)
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          profile: minimal
+          components: rustfmt
+      - name: Check formatting
+        run: cargo fmt --all -- --check
+      - name: Check lints (cargo clippy)
+        run: cargo clippy -- -D warnings