@molejs/mole-tools/webpack/utils.js

var path = require('path')
var fs = require('fs');
var glob = require('glob');
var ExtractTextPlugin = require('extract-text-webpack-plugin')
const projectName = path.basename(path.resolve(__dirname, '../../../../'));

var sep = path.sep;
//根据fileType获取文件别名列表和不带后缀的文件名列表
var aliasTypeList = ['js','css','less','svg'];
//图片类型文件
var imageTypeList = ["jpg","gif","jpeg","png",'bmp','svg'];

exports.assetsPath = function (_path) {
  var assetsSubDirectory = 'assets';
  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)
    }
  }
  // https://vue-loader.vuejs.org/en/configurations/extract-css.html
  return {
    css: generateLoaders(),
    postcss: generateLoaders('autoprefixer', {
      browsers: ['last 10 versions']
    }),
    //less: generateLoaders('less?'+JSON.stringify(lessConfig)),
    sass: generateLoaders('sass', { indentedSyntax: true }),
    scss: generateLoaders('sass'),
    stylus: generateLoaders('stylus'),
    styl: generateLoaders('stylus')
  }
}
//获取多级的入口文件
exports.getMultiEntry = function (globPath) {
  var entries = {},
    basename, tmp, pathname;
  glob.sync(globPath).forEach(function (entry) {
    basename = path.basename(entry, path.extname(entry));
    tmp = entry.replace('./src/modules', 'modules').replace('.html', '');
    entries[tmp] = entry;
  });
  return entries;
}
// 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
}
exports.walk = function(path, handleFile){
  var self = this;
  self.files = fs.readdirSync(path);
  self.files.forEach(function(item) {
    //console.log(item);
      var tmpPath = path + '/' + item;
      //console.log("---"+tmpPath);
      var stats = fs.statSync(tmpPath);
      if (stats.isDirectory()) {
          if(item === '.svn'){
              return false;
          }
          self.walk(tmpPath,handleFile);
      } else {
          handleFile(tmpPath,stats);
      }
  });
}
//获取绝对路径
exports.getPath = function(url, rootPath){
  //console.log('--'+ rootPath)
  return path.resolve(rootPath || './', url);
}
//获取打包类型
exports.getPackageType = function(){
  return "modules";
}
//获取输入目录
exports.getOutDir = function(afterUrl){
  var dir = "./";

  if(afterUrl){
    dir += afterUrl;
  }
  return this.getPath(dir);
}
exports.fileExit = function(path) {
  try {
    var stat = fs.accessSync(path);
    return true;
  } catch (e) {

  }
  return false;
}
exports.getFileList = function(pathDir, params){
  var customPath = path.resolve(params.root, './src/app.js');

  // 判断是否存在扩展文件
  var customFlag = this.fileExit(customPath);

  var entryAliasList = {}; // 入口程序别名
  var splitStr = projectName + sep + 'src';

  this.walk(pathDir, function(tmpPath){

    var fileType = tmpPath.split('.').pop().toLowerCase();
    if(aliasTypeList.indexOf(fileType) === -1 && imageTypeList.indexOf(fileType) === -1){
      return false;
    }
    var fileName = tmpPath.split(sep).pop().replace(/\.\w+$/,'');
    //
    var folderPath = tmpPath.split(splitStr)[1];
    var entryName = fileName;

    if (folderPath) {
      entryName = folderPath.replace(/\.\w+$/,'').slice();
    }
    //入口程序js
    if(fileType === 'js' && fileName.indexOf('.page') > -1){
      entryAliasList['../../www/' + entryName] = customFlag ? [customPath, './src'+ entryName + '.js'] : customPath;
    }
  });
  return {
    entryAliasList:entryAliasList
  };
}

exports.resolve = function(dir){
  return path.join(__dirname, '..', dir);
}
exports.getVendorName = function(dir){
  return '../../www/public/lib/base';
}
exports.getEntryAliasList = function(params){

  //所有需要打包的目录下文件列表
  var packageType = this.getPackageType();
  //生成入口文件
  var pageFileList = this.getFileList(this.getPath('src/'+packageType, params.root), params);
  var entry = pageFileList.entryAliasList;
  var vendorKey = this.getVendorName();
  //入口文件配置
  entry[vendorKey] = ['upaas-ui/dist/upaas-ui.css', '@beisen/bsapp-resetcss/reset.less', './src/shared/style/index.less'];
  return entry;
}