Add interface of command line

Author: alexvitayu

bin/hexlet-path-size

@@ -1,9 +1,23 @@
 package main
 
 import (
+	"context"
 	"fmt"
+	"log"
+	"os"
+
+	"github.com/urfave/cli/v3"
 )
 
 func main() {
 	fmt.Println("Hello from Hexlet!")
+	cmd := &cli.Command{
+		Name:  "hexlet-path-size",
+		Usage: "print size of a file or directory;",
+	}
+
+	if err := cmd.Run(context.Background(), os.Args); err != nil {
+		log.Fatal(err)
+	}
+
 }

cmd/hexlet-path-size/main.go

@@ -1,3 +1,5 @@
 module code
 
 go 1.24.4
+
+require github.com/urfave/cli/v3 v3.3.8 // indirect

go.mod

@@ -0,0 +1,2 @@
+github.com/urfave/cli/v3 v3.3.8 h1:BzolUExliMdet9NlJ/u4m5vHSotJ3PzEqSAZ1oPMa/E=
+github.com/urfave/cli/v3 v3.3.8/go.mod h1:FJSKtM/9AiiTOJL4fJ6TbMUkxBXn7GO9guZqoZtpYpo=

go.sum

@@ -1 +1,20 @@
 package main
+
+import (
+	"context"
+	"log"
+	"os"
+
+	"github.com/urfave/cli/v3"
+)
+
+func Help() {
+	cmd := &cli.Command{
+		Name:  "hexlet-path-size",
+		Usage: "print size of a file or directory;",
+	}
+
+	if err := cmd.Run(context.Background(), os.Args); err != nil {
+		log.Fatal(err)
+	}
+}