Add CI workflow with check, clippy, fmt, and test

Now that warnings and clippy lints are clean, enable RUSTFLAGS=-Dwarnings
to catch regressions.

Author: Marenz

.github/workflows/ci.yml

@@ -0,0 +1,62 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+env:
+  CARGO_TERM_COLOR: always
+  RUSTFLAGS: "-Dwarnings"
+
+jobs:
+  check:
+    name: Check & Clippy
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install protoc
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: cargo check
+        run: cargo check --all-targets
+
+      - name: cargo clippy
+        run: cargo clippy --all-targets
+
+  fmt:
+    name: Format
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+
+      - name: cargo fmt
+        run: cargo fmt --all -- --check
+
+  test:
+    name: Test
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install protoc
+        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
+
+      - uses: dtolnay/rust-toolchain@stable
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: cargo test (lib)
+        run: cargo test --lib

src/api/messaging.rs

@@ -414,12 +414,10 @@ pub(super) async fn toggle_platform(
                 _ => {}
             }
         }
-    } else {
-        if let Some(manager) = manager
-            && let Err(error) = manager.remove_adapter(platform).await
-        {
-            tracing::warn!(%error, platform = %platform, "failed to shut down adapter on toggle");
-        }
+    } else if let Some(manager) = manager
+        && let Err(error) = manager.remove_adapter(platform).await
+    {
+        tracing::warn!(%error, platform = %platform, "failed to shut down adapter on toggle");
     }
 
     let action = if request.enabled {