bunny-cli/bin/demo.js

#!/usr/bin/env node
const { program } = require('commander'); // 命令行提示工具
const chalk = require('chalk'); // 终端输出颜色变化
const inquirer = require('inquirer'); // 交互选项
const ora = require('ora'); // loading效果
const spinner = ora('Loading unicorns').start(); // 注意要使用x几版本因为不支持
const figlet = require('figlet'); // 生成艺术字

figlet('Hello World!!', function (err, data) {
	if (err) {
		console.log('Something went wrong...');
		console.dir(err);
		return;
	}
	console.log(data);
});

figlet.text(
	'Boo!',
	{
		font: 'Ghost',
		horizontalLayout: 'default',
		verticalLayout: 'default',
		width: 80,
		whitespaceBreak: true,
	},
	function (err, data) {
		if (err) {
			console.log('Something went wrong...');
			console.dir(err);
			return;
		}
		console.log(data);
	},
);

console.log(
	figlet.textSync('Boo!', {
		font: 'Ghost',
		horizontalLayout: 'default',
		verticalLayout: 'default',
		width: 80,
		whitespaceBreak: true,
	}),
);

setTimeout(() => {
	spinner.color = 'red';
	spinner.text = '网络较慢，请稍后...';
}, 1000);

setTimeout(() => {
	spinner.succeed('下载成功！！！');
}, 2000);

setTimeout(() => {
	spinner.fail('下载失败！！！');
}, 3000);

inquirer
	.prompt([
		/* Pass your questions in here */
		{ type: 'input', name: 'food', message: '你吃什么', default: '包子' },
		{ type: 'input', name: 'food', message: '吃辣吗？', default: '微辣' },
	])
	.then(answers => {
		// Use user feedback for... whatever!!
		console.log(answers);
	})
	.catch(error => {
		if (error.isTtyError) {
			// Prompt couldn't be rendered in the current environment
		} else {
			// Something else went wrong
		}
	});

console.log(chalk.red('文字颜色'));

program.name('bunny-cli').usage('<command> [options]');

program
	.option('-d, --debug', 'output extra debugging')
	.option('-s, --small', 'small pizza size')
	.option('-p, --pizza-type <type>', 'flavour of pizza');

program
	.command('clone <source> [destination]')
	.description('clone a repository into a newly created directory')
	.action((source, destination) => {
		console.log(source, destination);
	});

program.parse(process.argv);

const options = program.opts();
console.log(options);