const path = require('path');

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

module.exports = {
    // 基本路径
    publicPath: './',
    // 输出文件目录
    outputDir: 'dist',
    // eslint-loader 是否在保存的时候检查
    lintOnSave: false,
    // 生产环境是否生成 sourceMap 文件
    productionSourceMap: true,
    // 目录别名alias
    chainWebpack: (config)=>{
        config.resolve.alias
            .set('@$', resolve('src'))
            .set('api',resolve('src/api'))
            .set('assets',resolve('src/assets'))
            .set('components',resolve('src/components'))
            .set('views',resolve('src/views'))
    },
    // css相关配置
    css: {
        // 是否使用css分离插件 ExtractTextPlugin
        extract: false,
        // 开启 CSS source maps?
        sourceMap: false,
        // css预设器配置项
        loaderOptions: {},
        // 启用 CSS modules for all css / pre-processor files.
        modules: false
    },
    // webpack-dev-server 相关配置
    devServer: {
        open: process.platform === 'darwin',
        host: 'localhost',
        port: 8080,
        https: false,
        hotOnly: false,
        // proxy:  {
        //     '/api/v1': {
        //         target: 'http://59.55.137.184:5172',
        //         ws: true,  //代理websockets
        //         changeOrigin: true,
        //         pathRewrite: {
        //             '^/api/v1': ''
        //         }
        //     }
        // },
        before: app => {}
    },
    // 第三方插件配置
    pluginOptions: {
        'style-resources-loader': {
            preProcessor: 'less',
            patterns: [path.resolve(__dirname, "src/assets/css/params.less")]
        }
    }
}