fix(plugin-help): should not show command placeholder when only registered root command

Author: so1ve

packages/plugin-help/src/renderer.ts

@@ -173,7 +173,10 @@ export class HelpRenderer {
 				usage += ` ${command.parameters.map((p) => (typeof p === "string" ? p : p.key)).join(" ")}`;
 			}
 		} else {
-			if (this._cli._commands.size > 0) {
+			if (
+				this._cli._commands.size > 0 &&
+				!(this._cli._commands.has("") && this._cli._commands.size === 1)
+			) {
 				usage += this._cli._commands.has("") ? " [command]" : " <command>";
 			}
 		}

packages/plugin-help/test/__snapshots__/plugin-help.test.ts.snap

@@ -222,6 +222,34 @@ exports[`plugin-help > should not show commands placeholder when no commands exi
 ]
 `;
 
+exports[`plugin-help > should not show commands placeholder when no commands exist 2`] = `
+[
+  [
+    "test
+
+Usage
+  $ test [flags]
+
+Global Flags
+  --help, -h  Boolean  Show help  [default: false]",
+  ],
+]
+`;
+
+exports[`plugin-help > should not show commands placeholder when only registered root command 1`] = `
+[
+  [
+    "test
+
+Usage
+  $ test [flags]
+
+Global Flags
+  --help, -h  Boolean  Show help  [default: false]",
+  ],
+]
+`;
+
 exports[`plugin-help > should not show commands which set \`show\` to false 1`] = `
 [
   [

packages/plugin-help/test/plugin-help.test.ts

@@ -150,6 +150,15 @@ describe("plugin-help", () => {
 		expect(getConsoleMock("log").mock.calls).toMatchSnapshot();
 	});
 
+	it("should not show commands placeholder when only registered root command", () => {
+		TestBaseCli()
+			.use(helpPlugin({ command: false }))
+			.command("")
+			.parse(["--help"]);
+
+		expect(getConsoleMock("log").mock.calls).toMatchSnapshot();
+	});
+
 	it("should not show commands which set `show` to false", () => {
 		TestBaseCli()
 			.use(helpPlugin())