Show kv help when run without params (#6937)

Author: lrapoport-cf

.changeset/cyan-cycles-occur.md

@@ -0,0 +1,5 @@
+---
+"wrangler": patch
+---
+
+fix: show help when kv commands are run without parameters

packages/wrangler/src/__tests__/kv.test.ts

@@ -1,5 +1,6 @@
 import { writeFileSync } from "node:fs";
 import { http, HttpResponse } from "msw";
+import { endEventLoop } from "./helpers/end-event-loop";
 import { mockAccountId, mockApiToken } from "./helpers/mock-account-id";
 import { mockConsoleMethods } from "./helpers/mock-console";
 import { clearDialogs, mockConfirm } from "./helpers/mock-dialogs";
@@ -53,6 +54,57 @@ describe("wrangler", () => {
 		`);
 	});
 
+	it("should show help when no argument is passed", async () => {
+		await runWrangler("kv");
+		await endEventLoop();
+		expect(std.out).toMatchInlineSnapshot(`
+			"wrangler kv
+
+			🗂️  Manage Workers KV Namespaces
+
+			COMMANDS
+			  wrangler kv namespace  Interact with your Workers KV Namespaces
+			  wrangler kv key        Individually manage Workers KV key-value pairs
+			  wrangler kv bulk       Interact with multiple Workers KV key-value pairs at once
+
+			GLOBAL FLAGS
+			  -j, --experimental-json-config  Experimental: support wrangler.json  [boolean]
+			  -c, --config                    Path to .toml configuration file  [string]
+			  -e, --env                       Environment to use for operations and .env files  [string]
+			  -h, --help                      Show help  [boolean]
+			  -v, --version                   Show version number  [boolean]"
+		`);
+	});
+
+	it("should show help when an invalid argument is passed", async () => {
+		await expect(() => runWrangler("kv asdf")).rejects.toThrow(
+			"Unknown argument: asdf"
+		);
+		expect(std.err).toMatchInlineSnapshot(`
+			"X [ERROR] Unknown argument: asdf
+
+			"
+		`);
+		expect(std.out).toMatchInlineSnapshot(`
+			"
+			wrangler kv
+
+			🗂️  Manage Workers KV Namespaces
+
+			COMMANDS
+			  wrangler kv namespace  Interact with your Workers KV Namespaces
+			  wrangler kv key        Individually manage Workers KV key-value pairs
+			  wrangler kv bulk       Interact with multiple Workers KV key-value pairs at once
+
+			GLOBAL FLAGS
+			  -j, --experimental-json-config  Experimental: support wrangler.json  [boolean]
+			  -c, --config                    Path to .toml configuration file  [string]
+			  -e, --env                       Environment to use for operations and .env files  [string]
+			  -h, --help                      Show help  [boolean]
+			  -v, --version                   Show version number  [boolean]"
+		`);
+	});
+
 	describe("kv namespace", () => {
 		describe("create", () => {
 			function mockCreateRequest(expectedTitle: string) {

packages/wrangler/src/kv/index.ts

@@ -38,6 +38,7 @@ export function registerKvSubcommands(
 	subHelp: SubHelp
 ) {
 	return kvYargs
+		.command(subHelp)
 		.command(
 			"namespace",
 			`Interact with your Workers KV Namespaces`,
@@ -63,6 +64,7 @@ export function registerKvSubcommands(
 
 export function kvNamespace(kvYargs: CommonYargsArgv) {
 	return kvYargs
+		.demandCommand()
 		.command(
 			"create <namespace>",
 			"Create a new namespace",
@@ -201,6 +203,7 @@ export function kvNamespace(kvYargs: CommonYargsArgv) {
 
 export const kvKey = (kvYargs: CommonYargsArgv) => {
 	return kvYargs
+		.demandCommand()
 		.command(
 			"put <key> [value]",
 			"Write a single key/value pair to the given namespace",
@@ -542,6 +545,7 @@ export const kvKey = (kvYargs: CommonYargsArgv) => {
 
 export const kvBulk = (kvYargs: CommonYargsArgv) => {
 	return kvYargs
+		.demandCommand()
 		.command(
 			"put <filename>",
 			"Upload multiple key-value pairs to a namespace",