Adopt the Whitaker Dylint suite in the lint gate and CI

.github/workflows/ci.yml

@@ -13,6 +13,7 @@ jobs:
     env:
       CARGO_TERM_COLOR: always
       BUILD_PROFILE: debug
+      WHITAKER_INSTALLER_VERSION: '0.2.5'
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
       - name: Setup Rust
@@ -26,6 +27,24 @@ jobs:
             **/*.md
             !**/target/**
             !**/dist/**
+      - name: Cache Whitaker installer
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830  # v4.3.0
+        with:
+          path: |
+            ~/.cargo/bin/whitaker-installer
+            ~/.cache/cargo-binstall
+          key: whitaker-installer-${{ runner.os }}-${{ runner.arch }}-${{ env.WHITAKER_INSTALLER_VERSION }}
+      - name: Install Whitaker Dylint suite
+        run: |
+          if ! command -v whitaker-installer >/dev/null 2>&1; then
+            if cargo binstall --version >/dev/null 2>&1; then
+              cargo binstall --no-confirm --locked "whitaker-installer@${WHITAKER_INSTALLER_VERSION}"
+            else
+              echo "cargo-binstall unavailable; building whitaker-installer from crates.io"
+              cargo install --locked whitaker-installer --version "${WHITAKER_INSTALLER_VERSION}"
+            fi
+          fi
+          whitaker-installer
       - name: Lint
         run: make lint
       - name: Test and Measure Coverage

AGENTS.md

@@ -202,7 +202,6 @@ project:
 
 ### Testing
 
-
 - Use `rstest` fixtures for shared setup.
 - Replace duplicated tests with `#[rstest(...)]` parameterized cases.
 - Prefer `mockall` for ad hoc mocks/stubs.

Makefile

@@ -11,6 +11,7 @@ CLIPPY_FLAGS ?= $(CARGO_FLAGS) -- $(RUST_FLAGS)
 TEST_FLAGS ?= $(CARGO_FLAGS)
 MDLINT ?= markdownlint-cli2
 NIXIE ?= nixie
+WHITAKER ?= whitaker
 
 build: target/debug/$(TARGET) ## Build debug binary
 release: target/release/$(TARGET) ## Build release binary
@@ -26,9 +27,10 @@ test: ## Run tests with warnings treated as errors
 target/%/$(TARGET): ## Build binary in debug or release mode
 	$(CARGO) build $(BUILD_JOBS) $(if $(findstring release,$(@)),--release) --bin $(TARGET)
 
-lint: ## Run Clippy with warnings denied
+lint: ## Run Clippy and the Whitaker Dylint suite with warnings denied
 	RUSTDOCFLAGS="$(RUSTDOC_FLAGS)" $(CARGO) doc --no-deps
 	$(CARGO) clippy $(CLIPPY_FLAGS)
+	RUSTFLAGS="$(RUST_FLAGS)" $(WHITAKER) --all -- $(CARGO_FLAGS)
 
 fmt: ## Format Rust and Markdown sources
 	$(CARGO) fmt --all

src/main.rs

@@ -2,7 +2,7 @@
 
 // TODO: Remove this stub and implement actual application functionality.
 /// Application entry point.
-#[allow(clippy::print_stdout, reason = "CLI output is the intended behaviour")]
+#[expect(clippy::print_stdout, reason = "CLI output is the intended behaviour")]
 fn main() {
     println!("Hello from dbar!");
-}
+}