mytool-xjp/src/lib/writeTemp.js

前端脚手架工具

// 把模板中的变量替换为用户输入的变量，输出模板到制定文件夹

const Metalsmith = require('metalsmith');
const Handlebars = require('handlebars');
const path = require('path');
const fs = require('fs');
const { askQuestion } = require('./askQuestion');

const loadTemplate = async () => {
  // 从toolrc.json文件读取配置
  const dirPath = process.cwd();
  if (!fs.existsSync('toolrc.json')) {
    throw new Error('toolrc.json配置文件不存在');
  }
  const configJson = path.join(dirPath, 'toolrc.json');
  const config = fs.readFileSync(configJson);
  const { source, dist, questionConfig } = JSON.parse(config);
  const answer = await askQuestion(questionConfig);
  const metalsmith = Metalsmith(__dirname);

  metalsmith
    .metadata(answer)
    .source(path.join(dirPath, source))
    .destination(path.join(dirPath, dist))
    .use(function (files, metalsmith, done) {
      //遍历替换模板
      Object.keys(files).forEach(fileName => {
        const fileContentsString = files[fileName].contents.toString();
        //Handlebar compile 前需要转换为字符串
        files[fileName].contents = new Buffer(Handlebars.compile(fileContentsString)(metalsmith.metadata()));
      });
      done();
    }).build(function (err) {
    if (err) throw err;
  });
};

module.exports.loadTemplate = loadTemplate;