禁用 vue-cli webpack 编码图像 base64

Posted 2023-02-22

【中文标题】禁用 vue-cli webpack 编码图像 base64

【英文标题】：disable vue-cli webpack encoding image base64

【发布时间】：2017-08-16 21:29:22

【问题描述】：

我只是尝试使用 webpack 模板的 vuejs，然后我意识到我页面中的每个图像都是用 data:image/png;base64 编码的 .. 出于某种原因，我认为我不想使用该功能

我没有设置.htaccess文件将图像编码为base64，所以我认为问题出在webpack，但我找不到任何与base64图像编码相关的webpack文件

我无法弄清楚如何禁用它，我已经尝试禁用一些我认为与我在 webpack 上的问题相关的组件，但它没有帮助.. 我错过了什么吗？

谁能帮帮我？

webpack.prod.conf.js

var path = require('path')
var utils = require('./utils')
var webpack = require('webpack')
var config = require('../config')
var merge = require('webpack-merge')
var baseWebpackConfig = require('./webpack.base.conf')
var CopyWebpackPlugin = require('copy-webpack-plugin')
var htmlWebpackPlugin = require('html-webpack-plugin')
var ExtractTextPlugin = require('extract-text-webpack-plugin')
var OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin')

var env = process.env.NODE_ENV === 'testing'
  ? require('../config/test.env')
  : config.build.env

var webpackConfig = merge(baseWebpackConfig, 
  module: 
    rules: utils.styleLoaders(
      sourceMap: config.build.productionSourceMap,
      extract: true
    )
  ,
  devtool: config.build.productionSourceMap ? '#source-map' : false,
  output: 
    path: config.build.assetsRoot,
    filename: utils.assetsPath('js/[name].[chunkhash].js'),
    chunkFilename: utils.assetsPath('js/[id].[chunkhash].js')
  ,
  plugins: [
    // http://vuejs.github.io/vue-loader/en/workflow/production.html
    new webpack.DefinePlugin(
      'process.env': env
    ),
    new webpack.optimize.UglifyJsPlugin(
      compress: 
        warnings: false
      ,
      sourceMap: true
    ),
    // extract css into its own file
    new ExtractTextPlugin(
      filename: utils.assetsPath('css/[name].[contenthash].css')
    ),
    // Compress extracted CSS. We are using this plugin so that possible
    // duplicated CSS from different components can be deduped.
    new OptimizeCSSPlugin(
      cssProcessorOptions: 
        safe: true
      
    ),
    // generate dist index.html with correct asset hash for caching.
    // you can customize output by editing /index.html
    // see https://github.com/ampedandwired/html-webpack-plugin
    new HtmlWebpackPlugin(
      filename: process.env.NODE_ENV === 'testing'
        ? 'index.html'
        : config.build.index,
      template: 'index.html',
      inject: true,
      minify: 
        removeComments: true,
        collapseWhitespace: true,
        removeAttributeQuotes: true
        // more options:
        // https://github.com/kangax/html-minifier#options-quick-reference
      ,
      // necessary to consistently work with multiple chunks via CommonsChunkPlugin
      chunksSortMode: 'dependency'
    ),
    // split vendor js into its own file
    new webpack.optimize.CommonsChunkPlugin(
      name: 'vendor',
      minChunks: function (module, count) 
        // any required modules inside node_modules are extracted to vendor
        return (
          module.resource &&
          /\.js$/.test(module.resource) &&
          module.resource.indexOf(
            path.join(__dirname, '../node_modules')
          ) === 0
        )
      
    ),
    // extract webpack runtime and module manifest to its own file in order to
    // prevent vendor hash from being updated whenever app bundle is updated
    new webpack.optimize.CommonsChunkPlugin(
      name: 'manifest',
      chunks: ['vendor']
    ),
    // copy custom static assets
    new CopyWebpackPlugin([
      
        from: path.resolve(__dirname, '../static'),
        to: config.build.assetsSubDirectory,
        ignore: ['.*']
      
    ])
  ]
)

if (config.build.productionGzip) 
  var CompressionWebpackPlugin = require('compression-webpack-plugin')

  webpackConfig.plugins.push(
    new CompressionWebpackPlugin(
      asset: '[path].gz[query]',
      algorithm: 'gzip',
      test: new RegExp(
        '\\.(' +
        config.build.productionGzipExtensions.join('|') +
        ')$'
      ),
      threshold: 10240,
      minRatio: 0.8
    )
  )


if (config.build.bundleAnalyzerReport) 
  var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
  webpackConfig.plugins.push(new BundleAnalyzerPlugin())


module.exports = webpackConfig

webpack.base.conf

var path = require('path')
var utils = require('./utils')
var config = require('../config')
var vueLoaderConfig = require('./vue-loader.conf')

function resolve (dir) 
  return path.join(__dirname, '..', dir)


module.exports = 
  entry: 
    app: './src/main.js'
  ,
  output: 
    path: config.build.assetsRoot,
    filename: '[name].js',
    publicPath: process.env.NODE_ENV === 'production'
      ? config.build.assetsPublicPath
      : config.dev.assetsPublicPath
  ,
  resolve: 
    extensions: ['.js', '.vue', '.json'],
    alias: 
      'vue$': 'vue/dist/vue.esm.js',
      '@': resolve('src')
    
  ,
  module: 
    rules: [
      
        test: /\.(js|vue)$/,
        loader: 'eslint-loader',
        enforce: 'pre',
        include: [resolve('src'), resolve('test')],
        options: 
          formatter: require('eslint-friendly-formatter')
        
      ,
      
        test: /\.vue$/,
        loader: 'vue-loader',
        options: vueLoaderConfig
      ,
      
        test: /\.js$/,
        loader: 'babel-loader',
        include: [resolve('src'), resolve('test')]
      ,
      
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        loader: 'url-loader',
        query: 
          limit: 10000,
          name: utils.assetsPath('img/[name].[hash:7].[ext]')
        
      ,
      
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        loader: 'url-loader',
        query: 
          limit: 10000,
          name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
        
      
    ]
  

vue-loader.conf

var utils = require('./utils')
var config = require('../config')
var isProduction = process.env.NODE_ENV === 'production'

module.exports = 
  loaders: utils.cssLoaders(
    sourceMap: isProduction
      ? config.build.productionSourceMap
      : config.dev.cssSourceMap,
    extract: isProduction
  )

utils.js

var path = require('path')
var config = require('../config')
var ExtractTextPlugin = require('extract-text-webpack-plugin')

exports.assetsPath = function (_path) 
  var assetsSubDirectory = process.env.NODE_ENV === 'production'
    ? config.build.assetsSubDirectory
    : config.dev.assetsSubDirectory
  return path.posix.join(assetsSubDirectory, _path)


exports.cssLoaders = function (options) 
  options = options || 

  var cssLoader = 
    loader: 'css-loader',
    options: 
      minimize: process.env.NODE_ENV === 'production',
      sourceMap: options.sourceMap
    
  

  // generate loader string to be used with extract text plugin
  function generateLoaders (loader, loaderOptions) 
    var loaders = [cssLoader]
    if (loader) 
      loaders.push(
        loader: loader + '-loader',
        options: Object.assign(, loaderOptions, 
          sourceMap: options.sourceMap
        )
      )
    

    // Extract CSS when that option is specified
    // (which is the case during production build)
    if (options.extract) 
      return ExtractTextPlugin.extract(
        use: loaders,
        fallback: 'vue-style-loader'
      )
     else 
      return ['vue-style-loader'].concat(loaders)
    
  

  // http://vuejs.github.io/vue-loader/en/configurations/extract-css.html
  return 
    css: generateLoaders(),
    postcss: generateLoaders(),
    less: generateLoaders('less'),
    sass: generateLoaders('sass',  indentedSyntax: true ),
    scss: generateLoaders('sass'),
    stylus: generateLoaders('stylus'),
    styl: generateLoaders('stylus')
  


// Generate loaders for standalone style files (outside of .vue)
exports.styleLoaders = function (options) 
  var output = []
  var loaders = exports.cssLoaders(options)
  for (var extension in loaders) 
    var loader = loaders[extension]
    output.push(
      test: new RegExp('\\.' + extension + '$'),
      use: loader
    )
  
  return output

config.js

// see http://vuejs-templates.github.io/webpack for documentation.
var path = require('path')

module.exports = 
  build: 
    env: require('./prod.env'),
    index: path.resolve(__dirname, '../../templates/index.html'),
    assetsRoot: path.resolve(__dirname, '../../public'),
    assetsSubDirectory: 'asset',
    assetsPublicPath: '<?=$path?>',
    productionSourceMap: true,
    // Gzip off by default as many popular static hosts such as
    // Surge or Netlify already gzip all static assets for you.
    // Before setting to `true`, make sure to:
    // npm install --save-dev compression-webpack-plugin
    productionGzip: false,
    productionGzipExtensions: ['js', 'css'],
    // Run the build command with an extra argument to
    // View the bundle analyzer report after build finishes:
    // `npm run build --report`
    // Set to `true` or `false` to always turn it on or off
    bundleAnalyzerReport: process.env.npm_config_report
  ,
  dev: 
    env: require('./dev.env'),
    port: 8000,
    autoOpenBrowser: true,
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',
    proxyTable: ,
    // CSS Sourcemaps off by default because relative paths are "buggy"
    // with this option, according to the CSS-Loader README
    // (https://github.com/webpack/css-loader#sourcemaps)
    // In our experience, they generally work as expected,
    // just be aware of this issue when enabling this option.
    cssSourceMap: false
  

【问题讨论】：

请分享您的 webpack 相关文件。

【参考方案1】：

我遇到了同样的问题：我的一些图片是内联的，而另一些则不是。这似乎几乎是随机的。

原来，这是url-loader的一个特性，并不是vue-webpack特有的：

limit: Byte limit to inline files as Data URL

在问题 (webpack.base.conf) 中发布的配置中，url-loader 的限制设置为 10kb 的图像和字体：

 
    test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
    loader: 'url-loader',
    query: 
      limit: 10000,
      name: utils.assetsPath('img/[name].[hash:7].[ext]')
    
  ,
  
    test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
    loader: 'url-loader',
    query: 
      limit: 10000,
      name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
    
  

可以通过将limit 设置为负数来禁用此功能，例如-1：

  
    test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
    loader: 'url-loader',
    query: 
      limit: -1,
      name: utils.assetsPath('img/[name].[hash:7].[ext]')
    
  ,
  
    test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
    loader: 'url-loader',
    query: 
      limit: -1,
      name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
    
  

【讨论】：

其实是完美的解决方案

【参考方案2】：

与 Phil 的回答类似，但无需替换整个规则，您可以在 vue.config.js 中将其用于 Vue CLI 3

module.exports = 
  chainWebpack: config => 
    config.module
        .rule('images')
        .use('url-loader')
        .loader('url-loader')
        .tap(options => 
            options.limit = -1
            return options
        )
  

【讨论】：

你能解释一下 `options.limit = -1' 的作用吗？

可以通过将limit设置为负数来禁用此功能，例如-1

【参考方案3】：

这是一个旧线程，但对于 vue-cli 3，你必须处理它有点不同，也许有人正在寻找完全相同的问题。

vue.config.js

module.exports = 
  chainWebpack: config => 
    // clear the existing images module
    const imagesRule = config.module.rule('images');
    imagesRule.uses.clear();

    imagesRule
      // you can set whatever you want or remove this line completely
      .test(/\.(png|jpe?g|gif|webp)(\?.*)?$/)
      .use('file-loader')
      .loader('file-loader')
      .tap(options => 
        return 
          ...options,
          limit: -1 // no limit
        ;
      )
      .end();
  
;

所有装载机https://github.com/vuejs/vue-cli/blob/dev/packages/%40vue/cli-service/lib/config/base.js

【参考方案4】：

您必须在您的 json 配置中尝试这一行

devtool: (process.env.NODE_ENV === 'production') ? 'cheap-module-source-map' : '#eval-source-map'