TRA-3234 Fetch command (#54)

* preparation to fetch command

* get har as zip from server

* no message

* no message

cli/cmd/fetch.go

@@ -1,20 +1,28 @@
 package cmd
 
 import (
-	"fmt"
-
 	"github.com/spf13/cobra"
 )
 
+type MizuFetchOptions struct {
+	Limit        uint16
+	Directory	 string
+}
+
+var mizuFetchOptions = MizuFetchOptions{}
+
 var fetchCmd = &cobra.Command{
 	Use:   "fetch",
-	Short: "Download recorded traffic",
+	Short: "Download recorded traffic to files",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		fmt.Println("Not implemented")
+		RunMizuFetch(&mizuFetchOptions)
 		return nil
 	},
 }
 
 func init() {
 	rootCmd.AddCommand(fetchCmd)
+
+	fetchCmd.Flags().Uint16VarP(&mizuFetchOptions.Limit, "limit", "l", 1000, "Provide a custom limit for entries to fetch")
+	fetchCmd.Flags().StringVarP(&mizuFetchOptions.Directory, "directory", "d", ".", "Provide a custom directory for fetched entries")
 }