feat(@clack/prompts): add tasks (#154)

Author: cpreston321

.changeset/curvy-lobsters-tell.md

@@ -0,0 +1,5 @@
+---
+'@clack/prompts': minor
+---
+
+Add tasks function for executing tasks in spinners

packages/prompts/README.md

@@ -156,3 +156,19 @@ const group = await p.group(
 
 console.log(group.name, group.age, group.color);
 ```
+
+### Tasks
+
+Execute multiple tasks in spinners.
+
+```js
+await p.tasks([
+  {
+    title: 'Installing via npm',
+    task: async (message) => {
+      // Do installation here
+      return 'Installed via npm';
+    },
+  },
+]);
+```

packages/prompts/src/index.ts

@@ -774,3 +774,33 @@ export const group = async <T>(
 
 	return results;
 };
+
+export type Task = {
+	/**
+	 * Task title
+	 */
+	title: string;
+	/**
+	 * Task function
+	 */
+	task: (message: (string: string) => void) => string | Promise<string> | void | Promise<void>;
+
+	/**
+	 * If enabled === false the task will be skipped
+	 */
+	enabled?: boolean;
+};
+
+/**
+ * Define a group of tasks to be executed
+ */
+export const tasks = async (tasks: Task[]) => {
+	for (const task of tasks) {
+		if (task.enabled === false) continue;
+
+		const s = spinner();
+		s.start(task.title);
+		const result = await task.task(s.message);
+		s.stop(result || task.title);
+	}
+};