Adding version command to cli tool

Makefile

@@ -6,6 +6,7 @@ VERSION := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev
 BUILD_TIME := $(shell date -u '+%Y-%m-%d_%H:%M:%S')
 GIT_COMMIT := $(shell git rev-parse HEAD 2>/dev/null || echo "unknown")
 DEB_PACKAGE_NAME := $(BINARY_NAME)_$(VERSION)_amd64.deb
+PKG_PATH=git.runcible.io/${REPO_OWNER}/${REPO_NAME}/cmd
 
 # Default target
 .PHONY: all
@@ -16,7 +17,7 @@ all: build
 build:
 	@echo "Building $(BINARY_NAME) version $(VERSION)..."
 	@mkdir -p $(BUILD_DIR)
-	@go build -ldflags "-X main.Version=$(VERSION) -X main.BuildTime=$(BUILD_TIME) -X main.GitCommit=$(GIT_COMMIT)" \
+	@go build -ldflags "-X $(PKG_PATH).Version=$(VERSION) -X $(PKG_PATH).BuildTime=$(BUILD_TIME) -X $(PKG_PATH).GitCommit=$(GIT_COMMIT)" \
 		-o $(BUILD_DIR)/$(BINARY_NAME) .
 
 # Clean build artifacts

cmd/root.go

@@ -13,7 +13,7 @@ var rootCmd = &cobra.Command{
 	Long: `A longer description that spans multiple lines and likely contains
 examples and usage of using your application.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("Hello from your new Go CLI!")
+		fmt.Println("Hello from your new Go CLI tool ${REPO_NAME}!")
 	},
 }
 

cmd/version.go

@@ -0,0 +1,38 @@
+package cmd
+
+import (
+	"fmt"
+	"runtime/debug"
+
+	"github.com/spf13/cobra"
+)
+
+// These variables are set at build time using ldflags
+var (
+	Version   = "dev"     // Represents the version of the application
+	BuildTime = "unknown" // The time the binary was built
+	GitCommit = "unknown" // The git commit hash
+)
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print the version number, build time, and git commit",
+	Long:  `Displays the application's version, the time it was built, the git commit it was built from, and the Go version used.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Printf("Version:    %s\n", Version)
+		fmt.Printf("Build Time: %s\n", BuildTime)
+		fmt.Printf("Git Commit: %s\n", GitCommit)
+
+		// Print Go version and other build info if available
+		if info, ok := debug.ReadBuildInfo(); ok {
+			fmt.Printf("Go Version: %s\n", info.GoVersion)
+		}
+	},
+}
+
+// init function is called by Go when the package is initialized.
+// We use it to add the 'version' command to our root command.
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}