feat: update makefile

Makefile

@@ -1,14 +1,46 @@
 
-BINDIR := $(CURDIR)/bin
-BINNAME ?= hspguard
+# Project metadata
+APP_NAME := hspguard
+CMD_DIR := ./cmd/$(APP_NAME)
+BIN_DIR := ./bin
+BIN_PATH := $(BIN_DIR)/$(APP_NAME)
+PKG := ./...
+GO_FILES := $(shell find . -type f -name '*.go' -not -path "./vendor/*")
 
-SRC := $(shell find . -type f -name '*.go' -not -path "./vendor/*")
+# Go tools
+GO := go
+GOLINT := golangci-lint
+GOFMT := gofmt
+GOTEST := go test
+
+# Build flags
+LD_FLAGS := -s -w
+BUILD_TIME := $(shell date -u '+%Y-%m-%dT%H:%M:%SZ')
+GIT_COMMIT := $(shell git rev-parse --short HEAD 2>/dev/null || echo "unknown")
+
+.PHONY: all build clean fmt lint run
 
-.PHONY: all
 all: build
 
-.PHONY: build
-build: $(BINDIR)/$(BINNAME)
+build:
+	@mkdir -p $(BIN_DIR)
+	$(GO) build -ldflags "-X main.buildTime=$(BUILD_TIME) -X main.commitHash=$(GIT_COMMIT) $(LD_FLAGS)" -o $(BIN_PATH) $(CMD_DIR)
+
+run:
+	$(GO) run $(CMD_DIR)
+
+fmt:
+	$(GOFMT) -s -w $(GO_FILES)
+
+lint:
+	$(GOLINT) run
+
+test:
+	$(GOTEST) -v $(PKG)
+
+clean:
+	@rm -rf $(BIN_DIR)
+
+mod:
+	$(GO) mod tidy
 
-$(BINDIR)/$(BINNAME): $(SRC)
-	go build -o '$(BINDIR)'/$(BINNAME) ./cmd/$(BINNAME)