chore: coverage automation

.gitignore

@@ -1,3 +1,4 @@
 /target
 result/
 *.json
+tarpaulin-report.*

Makefile

@@ -0,0 +1,23 @@
+rwildcard=$(foreach d,$(wildcard $(1:=/*)),$(call rwildcard,$d,$2) $(filter $(subst *,%,$2),$d))
+rust_files=$(call rwildcard,src,*.rs)
+
+test: $(rust-files)
+	cargo test
+
+build: $(rust-files)
+	cargo build
+
+tarpaulin-report.%: $(rust_files)
+	cargo tarpaulin --skip-clean --test --out $*
+
+cover: tarpaulin-report.html
+
+view-cover: tarpaulin-report.html
+	open $<
+	
+clean-tarpaulin:
+	rm -f tarpaulin-report.*
+
+clean: clean-tarpaulin
+	cargo clean
+

flake.nix

@@ -37,7 +37,7 @@
     rust-bin = pkgs.rust-bin;
     
     devShells.default = pkgs.mkShell {
-      nativeBuildInputs = with pkgs; [ gnumake my-rust-bin rust-analyzer ];
+      nativeBuildInputs = with pkgs; [ gnumake my-rust-bin rust-analyzer cargo-tarpaulin ];
     };
   });
 }