From 7a9d73e726c90b674c45994c4273c1d3bf465db8 Mon Sep 17 00:00:00 2001
From: Charles Lowell <10964656+chlowell@users.noreply.github.com>
Date: Thu, 30 May 2024 07:54:27 -0700
Subject: [PATCH] apiviewgo: print help instead of panicking when given no args
 (#8333)

---
 src/go/cmd/root.go | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/src/go/cmd/root.go b/src/go/cmd/root.go
index 896dc9e995a..b0211f752cf 100644
--- a/src/go/cmd/root.go
+++ b/src/go/cmd/root.go
@@ -12,17 +12,18 @@ import (
 
 // rootCmd represents the base command when called without any subcommands
 var rootCmd = &cobra.Command{
-	Use:   "apiview <packageDir> <outputDir>",
-	Short: "apiview will generate the JSON token output for APIView",
-	Long: `The apiview command can be used to generate the tokenized 
-output needed by the APIView tool to show a view of publicly 
-exposed portions of an SDK. The generated file will use the 
-following naming format: <module name>.json
-NOTE: This command will overwrite any file with the same name 
-in the output directory.`,
-	// Uncomment the following line if your bare application
-	// has an action associated with it:
+	Use: "apiviewgo <moduleDir> <outputDir>",
+	Long: `apiviewgo outputs a file representing the public API of an Azure SDK for Go
+module in APIView format. It writes this file to <outputDir>/<module name>.json,
+overwriting any file of the same name.`,
 	Run: func(cmd *cobra.Command, args []string) {
+		if len(args) != 2 {
+			err := cmd.Help()
+			if err != nil {
+				fmt.Println(err)
+			}
+			return
+		}
 		err := CreateAPIView(args[0], args[1])
 		if err != nil {
 			fmt.Println(err)