fix(core): prevent selecting disabled selectKey options

.changeset/proud-donuts-listen.md

@@ -0,0 +1,6 @@
+---
+"@clack/core": patch
+"@clack/prompts": patch
+---
+
+Prevent `selectKey` from selecting disabled options.

packages/core/src/prompts/select-key.ts

@@ -1,11 +1,13 @@
 import Prompt, { type PromptOptions } from './prompt.js';
 
-export interface SelectKeyOptions<T extends { value: string }>
+export interface SelectKeyOptions<T extends { value: string; disabled?: boolean }>
 	extends PromptOptions<T['value'], SelectKeyPrompt<T>> {
 	options: T[];
 	caseSensitive?: boolean;
 }
-export default class SelectKeyPrompt<T extends { value: string }> extends Prompt<T['value']> {
+export default class SelectKeyPrompt<
+	T extends { value: string; disabled?: boolean },
+> extends Prompt<T['value']> {
 	options: T[];
 	cursor = 0;
 
@@ -28,7 +30,10 @@ export default class SelectKeyPrompt<T extends { value: string }> extends Prompt
 				return;
 			}
 
-			const value = this.options.find(({ value: [initial] }) => {
+			const value = this.options.find(({ value: [initial], disabled }) => {
+				if (disabled) {
+					return false;
+				}
 				return caseSensitive ? initial === casedKey : initial?.toLowerCase() === casedKey;
 			});
 			if (value) {

packages/prompts/test/select-key.test.ts

@@ -65,6 +65,39 @@ describe.each(['true', 'false'])('text (isCI = %s)', (isCI) => {
 		expect(value).toBe('b');
 	});
 
+	test('does not select disabled options', async () => {
+		const result = prompts.selectKey({
+			message: 'foo',
+			options: [
+				{ label: 'Disabled', value: 'd', disabled: true },
+				{ label: 'Enabled', value: 'e' },
+			],
+			input,
+			output,
+		});
+
+		input.emit('keypress', 'd', { name: 'd' });
+		input.emit('keypress', 'e', { name: 'e' });
+
+		expect(await result).toBe('e');
+	});
+
+	test('skips disabled options sharing the same initial', async () => {
+		const result = prompts.selectKey({
+			message: 'foo',
+			options: [
+				{ label: 'delete', value: 'delete', disabled: true },
+				{ label: 'deploy', value: 'deploy' },
+			],
+			input,
+			output,
+		});
+
+		input.emit('keypress', 'd', { name: 'd' });
+
+		expect(await result).toBe('deploy');
+	});
+
 	test('can cancel by pressing escape', async () => {
 		const result = prompts.selectKey({
 			message: 'foo',