chore: detect if it is arm64 (#318)

Author: LinuxSuRen

cmd/get.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"context"
 	"fmt"
+	"internal/goarch"
 	"net/http"
 	"net/url"
 	sysos "os"
@@ -127,11 +128,22 @@ func (o *downloadOption) fetch() (err error) {
 	return
 }
 
+func (o *downloadOption) archFix() {
+	if o.Arch != "arm" {
+		return
+	}
+
+	if goarch.IsArm64 == 1 {
+		o.Arch = "arm64"
+	}
+}
+
 func (o *downloadOption) preRunE(cmd *cobra.Command, args []string) (err error) {
 	// this might not be the best way to print schema
 	if o.PrintSchema {
 		return
 	}
+	o.archFix()
 
 	if err = o.fetch(); err != nil {
 		return