Files
56-DeZhouDaLuJia-MES_Manage…/build/webpack.dev.conf.js

111 lines
3.2 KiB
JavaScript

'use strict'
const path = require('path')
const utils = require('./utils')
const webpack = require('webpack')
const config = require('../config')
const { merge } = require('webpack-merge')
const baseWebpackConfig = require('./webpack.base.conf')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const ESLintPlugin = require('eslint-webpack-plugin')
const portfinder = require('portfinder')
const CopyWebpackPlugin = require('copy-webpack-plugin')
function resolve(dir) {
return path.join(__dirname, '..', dir)
}
const devWebpackConfig = merge(baseWebpackConfig, {
mode: 'development',
stats: 'errors-warnings',
infrastructureLogging: {
level: 'warn'
},
devtool: false, // 开发环境禁用 source map,大幅提升速度
cache: {
type: 'filesystem',
buildDependencies: {
config: [__filename]
},
// 限制缓存内存使用
maxMemoryGenerations: 5,
compression: 'gzip' // 压缩缓存,减少磁盘和内存占用
},
devServer: {
historyApiFallback: true,
hot: true,
compress: true,
host: process.env.HOST || config.dev.host,
port: process.env.PORT || config.dev.port,
open: config.dev.autoOpenBrowser,
static: {
publicPath: config.dev.assetsPublicPath,
watch: {
// 忽略 node_modules 等大目录,减少文件监听
ignored: ['**/node_modules/**', '**/dist/**', '**/.git/**'],
// 降低轮询间隔,减少 CPU 占用
aggregateTimeout: 600
}
},
client: {
logging: 'warn',
overlay: config.dev.errorOverlay ? { errors: true, warnings: false } : false
},
proxy: config.dev.proxyTable
},
plugins: [
new webpack.ProgressPlugin((percentage, message, ...args) => {
// 使用闭包保存上次的进度值
const percent = Math.floor(percentage * 100)
// 每 5% 或关键步骤时输出一次,减少控制台刷新
if (percent % 5 === 0 || percent === 100 || message.includes('building') || message.includes('done')) {
console.log(`构建进度: ${percent}% ${message}`)
}
}),
new webpack.DefinePlugin({
'process.env': require('../config/dev.env')
}),
new webpack.HotModuleReplacementPlugin(),
new CopyWebpackPlugin({
patterns: [
{
from: path.resolve(__dirname, '../static'),
to: config.build.assetsSubDirectory,
globOptions: {
ignore: ['.*']
}
}
]
}),
new HtmlWebpackPlugin({
filename: 'index.html',
template: 'index.html',
inject: true,
favicon: resolve('favicon.ico'),
title: 'AMS信息管理系统',
BASE_URL: 'static'
})
// ESLint 已在 webpack.base.conf.js 中配置,这里不需要重复添加
],
optimization: {
removeAvailableModules: false,
removeEmptyChunks: false,
splitChunks: false,
minimize: false
}
})
module.exports = new Promise((resolve, reject) => {
portfinder.basePort = process.env.PORT || config.dev.port
portfinder.getPort((err, port) => {
if (err) {
reject(err)
} else {
devWebpackConfig.devServer.port = port
process.env.PORT = port
console.log(`Your application is running here: http://${devWebpackConfig.devServer.host}:${port}`)
resolve(devWebpackConfig)
}
})
})