chore: import upstream snapshot with attribution

packages/cli/args.ts

@@ -0,0 +1,21 @@
+import { inputPrompt } from "./interactive";
+import type { Arg, PromptConfig } from "./interactive";
+
+export const processArgument = async <T>(
+	args: Record<string, Arg>,
+	name: string,
+	promptConfig: PromptConfig
+) => {
+	const value = args[name];
+	const result = await inputPrompt<T>({
+		...promptConfig,
+		// Accept the default value if the arg is already set
+		acceptDefault: promptConfig.acceptDefault ?? value !== undefined,
+		defaultValue: value ?? promptConfig.defaultValue,
+	});
+
+	// Update value in args before returning the result
+	args[name] = result as Arg;
+
+	return result;
+};