basant307/AI_Governance_Project

1const fs = require('fs');2const path = require('path');3const bypass = require('./bypass.js');4const FileSystem = require('./filesystem.js');5const {fixWin32Permissions} = require('./item.js');6 7const createContext = ({output, options = {}, target}, newContext) =>8  Object.assign(9    {10      // Assign options and set defaults if needed11      options: {12        recursive: options.recursive !== false,13        lazy: options.lazy !== false,14      },15      output,16      target,17    },18    newContext,19  );20 21function addFile(context, stats, isRoot) {22  const {output, target} = context;23  const {lazy} = context.options;24 25  if (!stats.isFile()) {26    throw new Error(`${target} is not a valid file!`);27  }28 29  const outputPropKey = isRoot ? target : path.basename(target);30 31  output[outputPropKey] = () => {32    const content = !lazy ? fs.readFileSync(target) : '';33    const file = FileSystem.file(Object.assign({}, stats, {content}))();34 35    if (lazy) {36      Object.defineProperty(file, '_content', {37        get() {38          const res = bypass(() => fs.readFileSync(target));39          Object.defineProperty(file, '_content', {40            value: res,41            writable: true,42          });43          return res;44        },45        set(data) {46          Object.defineProperty(file, '_content', {47            value: data,48            writable: true,49          });50        },51        configurable: true,52      });53    }54 55    return file;56  };57 58  return output[outputPropKey];59}60 61function addDir(context, stats, isRoot) {62  const {target, output} = context;63  const {recursive} = context.options;64 65  if (!stats.isDirectory()) {66    throw new Error(`${target} is not a valid directory!`);67  }68 69  stats = Object.assign({}, stats);70  const outputPropKey = isRoot ? target : path.basename(target);71 72  // On windows platforms, directories do not have the executable flag, which causes FileSystem.prototype.getItem73  // to think that the directory cannot be traversed. This is a workaround, however, a better solution may be to74  // re-think the logic in FileSystem.prototype.getItem75  // This workaround adds executable privileges if read privileges are found76  stats.mode = fixWin32Permissions(stats.mode);77 78  // Create directory factory79  const directoryItems = {};80  output[outputPropKey] = FileSystem.directory(81    Object.assign(stats, {items: directoryItems}),82  );83 84  fs.readdirSync(target).forEach((p) => {85    const absPath = path.join(target, p);86    const stats = fs.statSync(absPath);87    const newContext = createContext(context, {88      target: absPath,89      output: directoryItems,90    });91 92    if (recursive && stats.isDirectory()) {93      addDir(newContext, stats);94    } else if (stats.isFile()) {95      addFile(newContext, stats);96    }97  });98 99  return output[outputPropKey];100}101 102/**103 * Load directory or file from real FS104 * @param {string} p The path.105 * @param {Object} options The options.106 * @return {*} The return.107 */108exports.load = function (p, options) {109  return bypass(() => {110    p = path.resolve(p);111 112    const stats = fs.statSync(p);113    const context = createContext({output: {}, options, target: p});114 115    if (stats.isDirectory()) {116      return addDir(context, stats, true);117    } else if (stats.isFile()) {118      return addFile(context, stats, true);119    }120  });121};122