template-ivan/command.js

scaffold template

#!/usr/bin/env node

/* eslint-disable import/no-unresolved, max-params, global-require */

const fs = require('fs-extra')
const path = require('path')
const chalk = require('chalk')
const spawn = require('cross-spawn')

/**
 * react项目初始化
 * @param  {string} appPath           被构建的项目目录
 * @param  {string} appName           被构建的项目名
 * @param  {string} template          被构建的模版名
 */
function command(appPath, appName, template = 'react') {
  const ownPackageName = require(path.join(__dirname, 'package.json')).name
  const ownPath = path.join(appPath, 'node_modules', ownPackageName)

  // delete package.json
  fs.removeSync(path.join(appPath, 'package.json'))

  // Copy the files for the user
  const templatePath = path.join(ownPath, template)
  fs.copySync(templatePath, appPath)

  const appPackage = require(path.join(appPath, 'package.json'))
  // Setup the app name
  appPackage.name = appName

  // 对象补充赋值属性，然后进行赋值
  fs.writeFileSync(
    path.join(appPath, 'package.json'),
    JSON.stringify(appPackage, null, 2),
  )

  // Rename gitignore after the fact to prevent npm from renaming it to .npmignore
  // See: https://github.com/npm/npm/issues/1862
  fs.move(
    path.join(appPath, 'gitignore'),
    path.join(appPath, '.gitignore'),
  ).then(console.error)

  fs.removeSync(path.join(appPath, 'node_modules', ownPackageName))

  // Install react, react-dom, react-router and so on
  const proc = spawn.sync('npm', ['install'], { stdio: 'inherit' })
  if (proc.status !== 0) {
    console.error(chalk.red('\nInstall package failed'))
    return
  }

  console.log(chalk.green(`Success! Created ${chalk.yellow(appName)} at ${chalk.yellow(appPath)}`))
}

module.exports = command