const path = require('path');

module.exports = {
  publicPath: './',
  productionSourceMap: false,
  chainWebpack:(config)=>{

    // 配置路径别名
    config.resolve.alias
      .set('@',resolve('./src'))
      .set('@less',resolve('./src/assets/less'))
      .set('@page',resolve('./src/assets/less/page'))


    // 配置全局css
    const types = ['vue-modules', 'vue', 'normal-modules', 'normal']
    types.forEach(type => addStyleResource(config.module.rule('less').oneOf(type)))


    // 移除 prefetch 插件
    config.plugins.delete('prefetch')
    config.plugins.delete('preload')

  }
}


function resolve(dir){
  return path.join(__dirname,dir)
}

function addStyleResource (rule) {
  rule.use('style-resource')
    .loader('style-resources-loader')
    .options({
      patterns: [
        path.resolve(__dirname, './src/assets/less/_.less'),
      ],
    })
}