Vue中Less设置全局变量

分手后的思念是犯贱 2024-04-17 05:40 64阅读 0赞

安装依赖

npm install less --save-dev
    npm install sass-resources-loader --save-dev

build文件夹下utils.js修改如下

'use strict'
    const path = require('path')
    const config = require('../config')
    const ExtractTextPlugin = require('extract-text-webpack-plugin')
    const packageConfig = require('../package.json')
    
    exports.assetsPath = function (_path) {
      const assetsSubDirectory = process.env.NODE_ENV === 'production'
        ? config.build.assetsSubDirectory
        : config.dev.assetsSubDirectory
    
      return path.posix.join(assetsSubDirectory, _path)
    }
    
    exports.cssLoaders = function (options) {
      options = options || {}
    
      const cssLoader = {
        loader: 'css-loader',
        options: {
          sourceMap: options.sourceMap
        }
      }
    
      const postcssLoader = {
        loader: 'postcss-loader',
        options: {
          sourceMap: options.sourceMap
        }
      }
    
      // generate loader string to be used with extract text plugin
      function generateLoaders (loader, loaderOptions) {
        const loaders = options.usePostCSS ? [cssLoader, postcssLoader] : [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)
        }
      }
    
      // https://vue-loader.vuejs.org/en/configurations/extract-css.html
      return {
        css: generateLoaders(),
        postcss: generateLoaders(),
        less: generateLoaders('less').concat({
          loader: 'sass-resources-loader',
          options: {
            resources: path.resolve(__dirname, '../src/assets/common.less')//这是全局变量文件的路径所有变量要放在这个文件中
          }
    		}),
        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) {
      const output = []
      const loaders = exports.cssLoaders(options)
    
      for (const extension in loaders) {
        const loader = loaders[extension]
        output.push({
          test: new RegExp('\\.' + extension + '$'),
          use: loader
        })
      }
    
      return output
    }
    
    exports.createNotifierCallback = () => {
      const notifier = require('node-notifier')
    
      return (severity, errors) => {
        if (severity !== 'error') return
    
        const error = errors[0]
        const filename = error.file && error.file.split('!').pop()
    
        notifier.notify({
          title: packageConfig.name,
          message: severity + ': ' + error.name,
          subtitle: filename || '',
          icon: path.join(__dirname, 'logo.png')
        })
      }
    }

如果报错执行如下命令

npm install stylus-loader css-loader style-loader less-loader --save-dev