Move cli to separate package

cli/generate_secret.go

@@ -0,0 +1,26 @@
+package cli
+
+import (
+	"fmt"
+
+	"github.com/9seconds/mtg/v2/mtglib"
+)
+
+type GenerateSecret struct {
+	base
+
+	HostName string `arg optional help:"Hostname to use for domain fronting. Default is '${domain_front}'." name:"hostname" default:"${domain_front}"` // nolint: lll, govet
+	Hex      bool   `help:"Print secret in hex encoding."`
+}
+
+func (c *GenerateSecret) Run(cli *CLI) error { // nolint: unparam
+	secret := mtglib.GenerateSecret(cli.GenerateSecret.HostName)
+
+	if cli.GenerateSecret.Hex {
+		fmt.Println(secret.Hex()) // nolint: forbidigo
+	} else {
+		fmt.Println(secret.Base64()) // nolint: forbidigo
+	}
+
+	return nil
+}