feat(grum): add version cmd

Author: jaronnie

cmd/version.go

@@ -0,0 +1,60 @@
+/*
+Copyright © 2024 jaronnie <jaron@jaronnie.com>
+
+*/
+
+package cmd
+
+import (
+	"bytes"
+	"fmt"
+	"runtime"
+	"time"
+
+	"github.com/spf13/cast"
+	"github.com/spf13/cobra"
+)
+
+var (
+	Version string
+	Commit  string
+	Date    string
+)
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: `Print grum version`,
+	Run: func(cmd *cobra.Command, args []string) {
+		getVersion()
+	},
+}
+
+func getVersion() {
+	var versionBuffer bytes.Buffer
+
+	if Version != "" {
+		versionBuffer.WriteString(fmt.Sprintf("grum version %s %s/%s\n", Version, runtime.GOOS, runtime.GOARCH))
+	} else {
+		versionBuffer.WriteString(fmt.Sprintf("grum version %s %s/%s\n", "unknown", runtime.GOOS, runtime.GOARCH))
+	}
+
+	versionBuffer.WriteString(fmt.Sprintf("Go version %s\n", runtime.Version()))
+	if Commit != "" {
+		versionBuffer.WriteString(fmt.Sprintf("Git commit %s\n", Commit))
+	} else {
+		versionBuffer.WriteString(fmt.Sprintf("Git commit %s\n", "unknown"))
+	}
+
+	if Date != "" {
+		versionBuffer.WriteString(fmt.Sprintf("Build date %s\n", cast.ToTimeInDefaultLocation(Date, time.Local)))
+	} else {
+		versionBuffer.WriteString(fmt.Sprintf("Build date %s\n", "unknown"))
+	}
+
+	fmt.Print(versionBuffer.String())
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}

main.go

@@ -7,6 +7,17 @@ package main
 
 import "github.com/jaronnie/grum/cmd"
 
+// ldflags
+var (
+	version = "1.3.0"
+	commit  string
+	date    string
+)
+
 func main() {
+	cmd.Version = version
+	cmd.Date = date
+	cmd.Commit = commit
+
 	cmd.Execute()
 }