happy-weapp-cli/src/command/init.js

happy小程序脚手架

const fs = require('fs-extra')
const path = require('path')
const chalk = require('chalk')
const lodash = require('lodash')
const inquirer = require('inquirer')
const download = require('download')
const ejs = require('ejs')
const boxen = require('boxen')
const ora = require('ora')
const co = require('co')
const prompt = require('co-prompt')
const Util = require('../libs/utils')
const HAPPY_WEAPP_TEMPLATE = 'https://github.com/cilla123/happy-weapp-template/archive/master.zip'

module.exports = (projectName) => {
    
    co(function *(){

        if (typeof projectName == 'object') {
            console.log(chalk.red(`创建失败，请输入项目名称`))
            return
        }

        if (fs.existsSync(projectName)) {
            console.log(chalk.red(`创建失败，当前目录 ${projectName} 已存在`));
            return;
        }

        let promps = [{
            type: 'input',
            name: 'name',
            message: '请输入项目名:',
            default: `${projectName}`,
            validate(input) {
                if (!input) {
                    return '项目名不能为空';
                }
                return true;
            }
        }, {
            type: 'input',
            name: 'version',
            default: '0.0.1',
            message: '请输入项目版本号:'
        }, {
            type: 'input',
            name: 'description',
            message: '请输入项目描述信息:'
        }, {
            type: 'input',
            name: 'keywords',
            message: '请输入项目关键字（多个关键字之间用空格隔开）:'
        }, {
            type: 'input',
            name: 'author',
            message: '请输入项目作者信息:'
        }];

        inquirer.prompt(promps).then((answers) => {
            answers.keywords = answers.keywords ? answers.keywords.split(' ') : [];
            let downloadPath = path.join(Util.getRootPath(), 'downloads/');

            // 显示 loading
            const spinner = ora({
                text: '正在下载项目模板...',
                color: 'green'
            }).start();

            download(HAPPY_WEAPP_TEMPLATE, downloadPath, {
                extract: true
            }).then((data) => {
                // 关闭 loading
                spinner.stop();

                let item;
                let content;
                let fileData;
                for (let i = 0; i < data.length; i++) {
                    item = data[i];
                    item.newPath = path.join(process.cwd(), item.path.replace(item.path.split('/')[0], projectName));

                    if (item.type === 'file') {
                        fileData = fs.readFileSync(path.join(downloadPath, item.path), 'utf8');
                        if (/package.json/.test(item.path)) {
                            content = ejs.compile(fileData)(answers);
                        } else {
                            content = fileData;
                        }

                        fs.outputFileSync(item.newPath, content);
                        console.log(chalk.green('新建文件：', item.newPath));
                    } else if (item.type === 'directory') {
                        fs.ensureDirSync(item.newPath);
                        console.log(chalk.green('新建目录：', item.newPath));
                    }
                }

                let msg = `
                ✔ 项目初始化成功

                请按照下面的步骤进行操作：
                    1. cd ${projectName}
                    2. npm install 安装项目依赖
                    3. npm run dev 开启开发环境
                    4. npm run build 开启生产环境
                    `;
                console.log(boxen(msg, {
                    padding: {
                        left: 0,
                        right: 4,
                        top: 0,
                        bottom: 0
                    },
                    margin: 0,
                    borderColor: 'green',
                    borderStyle: 'classic'
                }));
            }).catch((err) => {
                console.log(err);
            });
        });
    })
};