yann-fs/dist/index.cjs.map

Enhanced fs-extra with better error handling

{"version":3,"file":"index.cjs","sources":["../node_modules/.pnpm/await-to-js@3.0.0/node_modules/await-to-js/dist/await-to-js.es5.js","../node_modules/.pnpm/universalify@2.0.1/node_modules/universalify/index.js","../node_modules/.pnpm/graceful-fs@4.2.11/node_modules/graceful-fs/polyfills.js","../node_modules/.pnpm/graceful-fs@4.2.11/node_modules/graceful-fs/graceful-fs.js","../node_modules/.pnpm/graceful-fs@4.2.11/node_modules/graceful-fs/legacy-streams.js","../node_modules/.pnpm/graceful-fs@4.2.11/node_modules/graceful-fs/clone.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/fs/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/mkdirs/utils.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/mkdirs/make-dir.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/mkdirs/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/path-exists/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/util/utimes.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/util/stat.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/copy/copy.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/copy/copy-sync.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/copy/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/remove/rimraf.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/remove/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/empty/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/ensure/file.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/ensure/link.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/ensure/symlink-paths.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/ensure/symlink-type.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/ensure/symlink.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/ensure/index.js","../node_modules/.pnpm/jsonfile@6.1.0/node_modules/jsonfile/utils.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/json/jsonfile.js","../node_modules/.pnpm/jsonfile@6.1.0/node_modules/jsonfile/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/output-file/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/json/output-json.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/json/output-json-sync.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/json/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/move/move.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/move/move-sync.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/move/index.js","../node_modules/.pnpm/fs-extra@10.1.0/node_modules/fs-extra/lib/index.js"],"sourcesContent":["/**\n * @param { Promise } promise\n * @param { Object= } errorExt - Additional Information you can pass to the err object\n * @return { Promise }\n */\nfunction to(promise, errorExt) {\n    return promise\n        .then(function (data) { return [null, data]; })\n        .catch(function (err) {\n        if (errorExt) {\n            Object.assign(err, errorExt);\n        }\n        return [err, undefined];\n    });\n}\n\nexport { to };\nexport default to;\n//# sourceMappingURL=await-to-js.es5.js.map\n","'use strict'\n\nexports.fromCallback = function (fn) {\n  return Object.defineProperty(function (...args) {\n    if (typeof args[args.length - 1] === 'function') fn.apply(this, args)\n    else {\n      return new Promise((resolve, reject) => {\n        args.push((err, res) => (err != null) ? reject(err) : resolve(res))\n        fn.apply(this, args)\n      })\n    }\n  }, 'name', { value: fn.name })\n}\n\nexports.fromPromise = function (fn) {\n  return Object.defineProperty(function (...args) {\n    const cb = args[args.length - 1]\n    if (typeof cb !== 'function') return fn.apply(this, args)\n    else {\n      args.pop()\n      fn.apply(this, args).then(r => cb(null, r), cb)\n    }\n  }, 'name', { value: fn.name })\n}\n","var constants = require('constants')\n\nvar origCwd = process.cwd\nvar cwd = null\n\nvar platform = process.env.GRACEFUL_FS_PLATFORM || process.platform\n\nprocess.cwd = function() {\n  if (!cwd)\n    cwd = origCwd.call(process)\n  return cwd\n}\ntry {\n  process.cwd()\n} catch (er) {}\n\n// This check is needed until node.js 12 is required\nif (typeof process.chdir === 'function') {\n  var chdir = process.chdir\n  process.chdir = function (d) {\n    cwd = null\n    chdir.call(process, d)\n  }\n  if (Object.setPrototypeOf) Object.setPrototypeOf(process.chdir, chdir)\n}\n\nmodule.exports = patch\n\nfunction patch (fs) {\n  // (re-)implement some things that are known busted or missing.\n\n  // lchmod, broken prior to 0.6.2\n  // back-port the fix here.\n  if (constants.hasOwnProperty('O_SYMLINK') &&\n      process.version.match(/^v0\\.6\\.[0-2]|^v0\\.5\\./)) {\n    patchLchmod(fs)\n  }\n\n  // lutimes implementation, or no-op\n  if (!fs.lutimes) {\n    patchLutimes(fs)\n  }\n\n  // https://github.com/isaacs/node-graceful-fs/issues/4\n  // Chown should not fail on einval or eperm if non-root.\n  // It should not fail on enosys ever, as this just indicates\n  // that a fs doesn't support the intended operation.\n\n  fs.chown = chownFix(fs.chown)\n  fs.fchown = chownFix(fs.fchown)\n  fs.lchown = chownFix(fs.lchown)\n\n  fs.chmod = chmodFix(fs.chmod)\n  fs.fchmod = chmodFix(fs.fchmod)\n  fs.lchmod = chmodFix(fs.lchmod)\n\n  fs.chownSync = chownFixSync(fs.chownSync)\n  fs.fchownSync = chownFixSync(fs.fchownSync)\n  fs.lchownSync = chownFixSync(fs.lchownSync)\n\n  fs.chmodSync = chmodFixSync(fs.chmodSync)\n  fs.fchmodSync = chmodFixSync(fs.fchmodSync)\n  fs.lchmodSync = chmodFixSync(fs.lchmodSync)\n\n  fs.stat = statFix(fs.stat)\n  fs.fstat = statFix(fs.fstat)\n  fs.lstat = statFix(fs.lstat)\n\n  fs.statSync = statFixSync(fs.statSync)\n  fs.fstatSync = statFixSync(fs.fstatSync)\n  fs.lstatSync = statFixSync(fs.lstatSync)\n\n  // if lchmod/lchown do not exist, then make them no-ops\n  if (fs.chmod && !fs.lchmod) {\n    fs.lchmod = function (path, mode, cb) {\n      if (cb) process.nextTick(cb)\n    }\n    fs.lchmodSync = function () {}\n  }\n  if (fs.chown && !fs.lchown) {\n    fs.lchown = function (path, uid, gid, cb) {\n      if (cb) process.nextTick(cb)\n    }\n    fs.lchownSync = function () {}\n  }\n\n  // on Windows, A/V software can lock the directory, causing this\n  // to fail with an EACCES or EPERM if the directory contains newly\n  // created files.  Try again on failure, for up to 60 seconds.\n\n  // Set the timeout this long because some Windows Anti-Virus, such as Parity\n  // bit9, may lock files for up to a minute, causing npm package install\n  // failures. Also, take care to yield the scheduler. Windows scheduling gives\n  // CPU to a busy looping process, which can cause the program causing the lock\n  // contention to be starved of CPU by node, so the contention doesn't resolve.\n  if (platform === \"win32\") {\n    fs.rename = typeof fs.rename !== 'function' ? fs.rename\n    : (function (fs$rename) {\n      function rename (from, to, cb) {\n        var start = Date.now()\n        var backoff = 0;\n        fs$rename(from, to, function CB (er) {\n          if (er\n              && (er.code === \"EACCES\" || er.code === \"EPERM\" || er.code === \"EBUSY\")\n              && Date.now() - start < 60000) {\n            setTimeout(function() {\n              fs.stat(to, function (stater, st) {\n                if (stater && stater.code === \"ENOENT\")\n                  fs$rename(from, to, CB);\n                else\n                  cb(er)\n              })\n            }, backoff)\n            if (backoff < 100)\n              backoff += 10;\n            return;\n          }\n          if (cb) cb(er)\n        })\n      }\n      if (Object.setPrototypeOf) Object.setPrototypeOf(rename, fs$rename)\n      return rename\n    })(fs.rename)\n  }\n\n  // if read() returns EAGAIN, then just try it again.\n  fs.read = typeof fs.read !== 'function' ? fs.read\n  : (function (fs$read) {\n    function read (fd, buffer, offset, length, position, callback_) {\n      var callback\n      if (callback_ && typeof callback_ === 'function') {\n        var eagCounter = 0\n        callback = function (er, _, __) {\n          if (er && er.code === 'EAGAIN' && eagCounter < 10) {\n            eagCounter ++\n            return fs$read.call(fs, fd, buffer, offset, length, position, callback)\n          }\n          callback_.apply(this, arguments)\n        }\n      }\n      return fs$read.call(fs, fd, buffer, offset, length, position, callback)\n    }\n\n    // This ensures `util.promisify` works as it does for native `fs.read`.\n    if (Object.setPrototypeOf) Object.setPrototypeOf(read, fs$read)\n    return read\n  })(fs.read)\n\n  fs.readSync = typeof fs.readSync !== 'function' ? fs.readSync\n  : (function (fs$readSync) { return function (fd, buffer, offset, length, position) {\n    var eagCounter = 0\n    while (true) {\n      try {\n        return fs$readSync.call(fs, fd, buffer, offset, length, position)\n      } catch (er) {\n        if (er.code === 'EAGAIN' && eagCounter < 10) {\n          eagCounter ++\n          continue\n        }\n        throw er\n      }\n    }\n  }})(fs.readSync)\n\n  function patchLchmod (fs) {\n    fs.lchmod = function (path, mode, callback) {\n      fs.open( path\n             , constants.O_WRONLY | constants.O_SYMLINK\n             , mode\n             , function (err, fd) {\n        if (err) {\n          if (callback) callback(err)\n          return\n        }\n        // prefer to return the chmod error, if one occurs,\n        // but still try to close, and report closing errors if they occur.\n        fs.fchmod(fd, mode, function (err) {\n          fs.close(fd, function(err2) {\n            if (callback) callback(err || err2)\n          })\n        })\n      })\n    }\n\n    fs.lchmodSync = function (path, mode) {\n      var fd = fs.openSync(path, constants.O_WRONLY | constants.O_SYMLINK, mode)\n\n      // prefer to return the chmod error, if one occurs,\n      // but still try to close, and report closing errors if they occur.\n      var threw = true\n      var ret\n      try {\n        ret = fs.fchmodSync(fd, mode)\n        threw = false\n      } finally {\n        if (threw) {\n          try {\n            fs.closeSync(fd)\n          } catch (er) {}\n        } else {\n          fs.closeSync(fd)\n        }\n      }\n      return ret\n    }\n  }\n\n  function patchLutimes (fs) {\n    if (constants.hasOwnProperty(\"O_SYMLINK\") && fs.futimes) {\n      fs.lutimes = function (path, at, mt, cb) {\n        fs.open(path, constants.O_SYMLINK, function (er, fd) {\n          if (er) {\n            if (cb) cb(er)\n            return\n          }\n          fs.futimes(fd, at, mt, function (er) {\n            fs.close(fd, function (er2) {\n              if (cb) cb(er || er2)\n            })\n          })\n        })\n      }\n\n      fs.lutimesSync = function (path, at, mt) {\n        var fd = fs.openSync(path, constants.O_SYMLINK)\n        var ret\n        var threw = true\n        try {\n          ret = fs.futimesSync(fd, at, mt)\n          threw = false\n        } finally {\n          if (threw) {\n            try {\n              fs.closeSync(fd)\n            } catch (er) {}\n          } else {\n            fs.closeSync(fd)\n          }\n        }\n        return ret\n      }\n\n    } else if (fs.futimes) {\n      fs.lutimes = function (_a, _b, _c, cb) { if (cb) process.nextTick(cb) }\n      fs.lutimesSync = function () {}\n    }\n  }\n\n  function chmodFix (orig) {\n    if (!orig) return orig\n    return function (target, mode, cb) {\n      return orig.call(fs, target, mode, function (er) {\n        if (chownErOk(er)) er = null\n        if (cb) cb.apply(this, arguments)\n      })\n    }\n  }\n\n  function chmodFixSync (orig) {\n    if (!orig) return orig\n    return function (target, mode) {\n      try {\n        return orig.call(fs, target, mode)\n      } catch (er) {\n        if (!chownErOk(er)) throw er\n      }\n    }\n  }\n\n\n  function chownFix (orig) {\n    if (!orig) return orig\n    return function (target, uid, gid, cb) {\n      return orig.call(fs, target, uid, gid, function (er) {\n        if (chownErOk(er)) er = null\n        if (cb) cb.apply(this, arguments)\n      })\n    }\n  }\n\n  function chownFixSync (orig) {\n    if (!orig) return orig\n    return function (target, uid, gid) {\n      try {\n        return orig.call(fs, target, uid, gid)\n      } catch (er) {\n        if (!chownErOk(er)) throw er\n      }\n    }\n  }\n\n  function statFix (orig) {\n    if (!orig) return orig\n    // Older versions of Node erroneously returned signed integers for\n    // uid + gid.\n    return function (target, options, cb) {\n      if (typeof options === 'function') {\n        cb = options\n        options = null\n      }\n      function callback (er, stats) {\n        if (stats) {\n          if (stats.uid < 0) stats.uid += 0x100000000\n          if (stats.gid < 0) stats.gid += 0x100000000\n        }\n        if (cb) cb.apply(this, arguments)\n      }\n      return options ? orig.call(fs, target, options, callback)\n        : orig.call(fs, target, callback)\n    }\n  }\n\n  function statFixSync (orig) {\n    if (!orig) return orig\n    // Older versions of Node erroneously returned signed integers for\n    // uid + gid.\n    return function (target, options) {\n      var stats = options ? orig.call(fs, target, options)\n        : orig.call(fs, target)\n      if (stats) {\n        if (stats.uid < 0) stats.uid += 0x100000000\n        if (stats.gid < 0) stats.gid += 0x100000000\n      }\n      return stats;\n    }\n  }\n\n  // ENOSYS means that the fs doesn't support the op. Just ignore\n  // that, because it doesn't matter.\n  //\n  // if there's no getuid, or if getuid() is something other\n  // than 0, and the error is EINVAL or EPERM, then just ignore\n  // it.\n  //\n  // This specific case is a silent failure in cp, install, tar,\n  // and most other unix tools that manage permissions.\n  //\n  // When running as root, or if other types of errors are\n  // encountered, then it's strict.\n  function chownErOk (er) {\n    if (!er)\n      return true\n\n    if (er.code === \"ENOSYS\")\n      return true\n\n    var nonroot = !process.getuid || process.getuid() !== 0\n    if (nonroot) {\n      if (er.code === \"EINVAL\" || er.code === \"EPERM\")\n        return true\n    }\n\n    return false\n  }\n}\n","var fs = require('fs')\nvar polyfills = require('./polyfills.js')\nvar legacy = require('./legacy-streams.js')\nvar clone = require('./clone.js')\n\nvar util = require('util')\n\n/* istanbul ignore next - node 0.x polyfill */\nvar gracefulQueue\nvar previousSymbol\n\n/* istanbul ignore else - node 0.x polyfill */\nif (typeof Symbol === 'function' && typeof Symbol.for === 'function') {\n  gracefulQueue = Symbol.for('graceful-fs.queue')\n  // This is used in testing by future versions\n  previousSymbol = Symbol.for('graceful-fs.previous')\n} else {\n  gracefulQueue = '___graceful-fs.queue'\n  previousSymbol = '___graceful-fs.previous'\n}\n\nfunction noop () {}\n\nfunction publishQueue(context, queue) {\n  Object.defineProperty(context, gracefulQueue, {\n    get: function() {\n      return queue\n    }\n  })\n}\n\nvar debug = noop\nif (util.debuglog)\n  debug = util.debuglog('gfs4')\nelse if (/\\bgfs4\\b/i.test(process.env.NODE_DEBUG || ''))\n  debug = function() {\n    var m = util.format.apply(util, arguments)\n    m = 'GFS4: ' + m.split(/\\n/).join('\\nGFS4: ')\n    console.error(m)\n  }\n\n// Once time initialization\nif (!fs[gracefulQueue]) {\n  // This queue can be shared by multiple loaded instances\n  var queue = global[gracefulQueue] || []\n  publishQueue(fs, queue)\n\n  // Patch fs.close/closeSync to shared queue version, because we need\n  // to retry() whenever a close happens *anywhere* in the program.\n  // This is essential when multiple graceful-fs instances are\n  // in play at the same time.\n  fs.close = (function (fs$close) {\n    function close (fd, cb) {\n      return fs$close.call(fs, fd, function (err) {\n        // This function uses the graceful-fs shared queue\n        if (!err) {\n          resetQueue()\n        }\n\n        if (typeof cb === 'function')\n          cb.apply(this, arguments)\n      })\n    }\n\n    Object.defineProperty(close, previousSymbol, {\n      value: fs$close\n    })\n    return close\n  })(fs.close)\n\n  fs.closeSync = (function (fs$closeSync) {\n    function closeSync (fd) {\n      // This function uses the graceful-fs shared queue\n      fs$closeSync.apply(fs, arguments)\n      resetQueue()\n    }\n\n    Object.defineProperty(closeSync, previousSymbol, {\n      value: fs$closeSync\n    })\n    return closeSync\n  })(fs.closeSync)\n\n  if (/\\bgfs4\\b/i.test(process.env.NODE_DEBUG || '')) {\n    process.on('exit', function() {\n      debug(fs[gracefulQueue])\n      require('assert').equal(fs[gracefulQueue].length, 0)\n    })\n  }\n}\n\nif (!global[gracefulQueue]) {\n  publishQueue(global, fs[gracefulQueue]);\n}\n\nmodule.exports = patch(clone(fs))\nif (process.env.TEST_GRACEFUL_FS_GLOBAL_PATCH && !fs.__patched) {\n    module.exports = patch(fs)\n    fs.__patched = true;\n}\n\nfunction patch (fs) {\n  // Everything that references the open() function needs to be in here\n  polyfills(fs)\n  fs.gracefulify = patch\n\n  fs.createReadStream = createReadStream\n  fs.createWriteStream = createWriteStream\n  var fs$readFile = fs.readFile\n  fs.readFile = readFile\n  function readFile (path, options, cb) {\n    if (typeof options === 'function')\n      cb = options, options = null\n\n    return go$readFile(path, options, cb)\n\n    function go$readFile (path, options, cb, startTime) {\n      return fs$readFile(path, options, function (err) {\n        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))\n          enqueue([go$readFile, [path, options, cb], err, startTime || Date.now(), Date.now()])\n        else {\n          if (typeof cb === 'function')\n            cb.apply(this, arguments)\n        }\n      })\n    }\n  }\n\n  var fs$writeFile = fs.writeFile\n  fs.writeFile = writeFile\n  function writeFile (path, data, options, cb) {\n    if (typeof options === 'function')\n      cb = options, options = null\n\n    return go$writeFile(path, data, options, cb)\n\n    function go$writeFile (path, data, options, cb, startTime) {\n      return fs$writeFile(path, data, options, function (err) {\n        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))\n          enqueue([go$writeFile, [path, data, options, cb], err, startTime || Date.now(), Date.now()])\n        else {\n          if (typeof cb === 'function')\n            cb.apply(this, arguments)\n        }\n      })\n    }\n  }\n\n  var fs$appendFile = fs.appendFile\n  if (fs$appendFile)\n    fs.appendFile = appendFile\n  function appendFile (path, data, options, cb) {\n    if (typeof options === 'function')\n      cb = options, options = null\n\n    return go$appendFile(path, data, options, cb)\n\n    function go$appendFile (path, data, options, cb, startTime) {\n      return fs$appendFile(path, data, options, function (err) {\n        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))\n          enqueue([go$appendFile, [path, data, options, cb], err, startTime || Date.now(), Date.now()])\n        else {\n          if (typeof cb === 'function')\n            cb.apply(this, arguments)\n        }\n      })\n    }\n  }\n\n  var fs$copyFile = fs.copyFile\n  if (fs$copyFile)\n    fs.copyFile = copyFile\n  function copyFile (src, dest, flags, cb) {\n    if (typeof flags === 'function') {\n      cb = flags\n      flags = 0\n    }\n    return go$copyFile(src, dest, flags, cb)\n\n    function go$copyFile (src, dest, flags, cb, startTime) {\n      return fs$copyFile(src, dest, flags, function (err) {\n        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))\n          enqueue([go$copyFile, [src, dest, flags, cb], err, startTime || Date.now(), Date.now()])\n        else {\n          if (typeof cb === 'function')\n            cb.apply(this, arguments)\n        }\n      })\n    }\n  }\n\n  var fs$readdir = fs.readdir\n  fs.readdir = readdir\n  var noReaddirOptionVersions = /^v[0-5]\\./\n  function readdir (path, options, cb) {\n    if (typeof options === 'function')\n      cb = options, options = null\n\n    var go$readdir = noReaddirOptionVersions.test(process.version)\n      ? function go$readdir (path, options, cb, startTime) {\n        return fs$readdir(path, fs$readdirCallback(\n          path, options, cb, startTime\n        ))\n      }\n      : function go$readdir (path, options, cb, startTime) {\n        return fs$readdir(path, options, fs$readdirCallback(\n          path, options, cb, startTime\n        ))\n      }\n\n    return go$readdir(path, options, cb)\n\n    function fs$readdirCallback (path, options, cb, startTime) {\n      return function (err, files) {\n        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))\n          enqueue([\n            go$readdir,\n            [path, options, cb],\n            err,\n            startTime || Date.now(),\n            Date.now()\n          ])\n        else {\n          if (files && files.sort)\n            files.sort()\n\n          if (typeof cb === 'function')\n            cb.call(this, err, files)\n        }\n      }\n    }\n  }\n\n  if (process.version.substr(0, 4) === 'v0.8') {\n    var legStreams = legacy(fs)\n    ReadStream = legStreams.ReadStream\n    WriteStream = legStreams.WriteStream\n  }\n\n  var fs$ReadStream = fs.ReadStream\n  if (fs$ReadStream) {\n    ReadStream.prototype = Object.create(fs$ReadStream.prototype)\n    ReadStream.prototype.open = ReadStream$open\n  }\n\n  var fs$WriteStream = fs.WriteStream\n  if (fs$WriteStream) {\n    WriteStream.prototype = Object.create(fs$WriteStream.prototype)\n    WriteStream.prototype.open = WriteStream$open\n  }\n\n  Object.defineProperty(fs, 'ReadStream', {\n    get: function () {\n      return ReadStream\n    },\n    set: function (val) {\n      ReadStream = val\n    },\n    enumerable: true,\n    configurable: true\n  })\n  Object.defineProperty(fs, 'WriteStream', {\n    get: function () {\n      return WriteStream\n    },\n    set: function (val) {\n      WriteStream = val\n    },\n    enumerable: true,\n    configurable: true\n  })\n\n  // legacy names\n  var FileReadStream = ReadStream\n  Object.defineProperty(fs, 'FileReadStream', {\n    get: function () {\n      return FileReadStream\n    },\n    set: function (val) {\n      FileReadStream = val\n    },\n    enumerable: true,\n    configurable: true\n  })\n  var FileWriteStream = WriteStream\n  Object.defineProperty(fs, 'FileWriteStream', {\n    get: function () {\n      return FileWriteStream\n    },\n    set: function (val) {\n      FileWriteStream = val\n    },\n    enumerable: true,\n    configurable: true\n  })\n\n  function ReadStream (path, options) {\n    if (this instanceof ReadStream)\n      return fs$ReadStream.apply(this, arguments), this\n    else\n      return ReadStream.apply(Object.create(ReadStream.prototype), arguments)\n  }\n\n  function ReadStream$open () {\n    var that = this\n    open(that.path, that.flags, that.mode, function (err, fd) {\n      if (err) {\n        if (that.autoClose)\n          that.destroy()\n\n        that.emit('error', err)\n      } else {\n        that.fd = fd\n        that.emit('open', fd)\n        that.read()\n      }\n    })\n  }\n\n  function WriteStream (path, options) {\n    if (this instanceof WriteStream)\n      return fs$WriteStream.apply(this, arguments), this\n    else\n      return WriteStream.apply(Object.create(WriteStream.prototype), arguments)\n  }\n\n  function WriteStream$open () {\n    var that = this\n    open(that.path, that.flags, that.mode, function (err, fd) {\n      if (err) {\n        that.destroy()\n        that.emit('error', err)\n      } else {\n        that.fd = fd\n        that.emit('open', fd)\n      }\n    })\n  }\n\n  function createReadStream (path, options) {\n    return new fs.ReadStream(path, options)\n  }\n\n  function createWriteStream (path, options) {\n    return new fs.WriteStream(path, options)\n  }\n\n  var fs$open = fs.open\n  fs.open = open\n  function open (path, flags, mode, cb) {\n    if (typeof mode === 'function')\n      cb = mode, mode = null\n\n    return go$open(path, flags, mode, cb)\n\n    function go$open (path, flags, mode, cb, startTime) {\n      return fs$open(path, flags, mode, function (err, fd) {\n        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))\n          enqueue([go$open, [path, flags, mode, cb], err, startTime || Date.now(), Date.now()])\n        else {\n          if (typeof cb === 'function')\n            cb.apply(this, arguments)\n        }\n      })\n    }\n  }\n\n  return fs\n}\n\nfunction enqueue (elem) {\n  debug('ENQUEUE', elem[0].name, elem[1])\n  fs[gracefulQueue].push(elem)\n  retry()\n}\n\n// keep track of the timeout between retry() calls\nvar retryTimer\n\n// reset the startTime and lastTime to now\n// this resets the start of the 60 second overall timeout as well as the\n// delay between attempts so that we'll retry these jobs sooner\nfunction resetQueue () {\n  var now = Date.now()\n  for (var i = 0; i < fs[gracefulQueue].length; ++i) {\n    // entries that are only a length of 2 are from an older version, don't\n    // bother modifying those since they'll be retried anyway.\n    if (fs[gracefulQueue][i].length > 2) {\n      fs[gracefulQueue][i][3] = now // startTime\n      fs[gracefulQueue][i][4] = now // lastTime\n    }\n  }\n  // call retry to make sure we're actively processing the queue\n  retry()\n}\n\nfunction retry () {\n  // clear the timer and remove it to help prevent unintended concurrency\n  clearTimeout(retryTimer)\n  retryTimer = undefined\n\n  if (fs[gracefulQueue].length === 0)\n    return\n\n  var elem = fs[gracefulQueue].shift()\n  var fn = elem[0]\n  var args = elem[1]\n  // these items may be unset if they were added by an older graceful-fs\n  var err = elem[2]\n  var startTime = elem[3]\n  var lastTime = elem[4]\n\n  // if we don't have a startTime we have no way of knowing if we've waited\n  // long enough, so go ahead and retry this item now\n  if (startTime === undefined) {\n    debug('RETRY', fn.name, args)\n    fn.apply(null, args)\n  } else if (Date.now() - startTime >= 60000) {\n    // it's been more than 60 seconds total, bail now\n    debug('TIMEOUT', fn.name, args)\n    var cb = args.pop()\n    if (typeof cb === 'function')\n      cb.call(null, err)\n  } else {\n    // the amount of time between the last attempt and right now\n    var sinceAttempt = Date.now() - lastTime\n    // the amount of time between when we first tried, and when we last tried\n    // rounded up to at least 1\n    var sinceStart = Math.max(lastTime - startTime, 1)\n    // backoff. wait longer than the total time we've been retrying, but only\n    // up to a maximum of 100ms\n    var desiredDelay = Math.min(sinceStart * 1.2, 100)\n    // it's been long enough since the last retry, do it again\n    if (sinceAttempt >= desiredDelay) {\n      debug('RETRY', fn.name, args)\n      fn.apply(null, args.concat([startTime]))\n    } else {\n      // if we can't do this job yet, push it to the end of the queue\n      // and let the next iteration check again\n      fs[gracefulQueue].push(elem)\n    }\n  }\n\n  // schedule our next run if one isn't already scheduled\n  if (retryTimer === undefined) {\n    retryTimer = setTimeout(retry, 0)\n  }\n}\n","var Stream = require('stream').Stream\n\nmodule.exports = legacy\n\nfunction legacy (fs) {\n  return {\n    ReadStream: ReadStream,\n    WriteStream: WriteStream\n  }\n\n  function ReadStream (path, options) {\n    if (!(this instanceof ReadStream)) return new ReadStream(path, options);\n\n    Stream.call(this);\n\n    var self = this;\n\n    this.path = path;\n    this.fd = null;\n    this.readable = true;\n    this.paused = false;\n\n    this.flags = 'r';\n    this.mode = 438; /*=0666*/\n    this.bufferSize = 64 * 1024;\n\n    options = options || {};\n\n    // Mixin options into this\n    var keys = Object.keys(options);\n    for (var index = 0, length = keys.length; index < length; index++) {\n      var key = keys[index];\n      this[key] = options[key];\n    }\n\n    if (this.encoding) this.setEncoding(this.encoding);\n\n    if (this.start !== undefined) {\n      if ('number' !== typeof this.start) {\n        throw TypeError('start must be a Number');\n      }\n      if (this.end === undefined) {\n        this.end = Infinity;\n      } else if ('number' !== typeof this.end) {\n        throw TypeError('end must be a Number');\n      }\n\n      if (this.start > this.end) {\n        throw new Error('start must be <= end');\n      }\n\n      this.pos = this.start;\n    }\n\n    if (this.fd !== null) {\n      process.nextTick(function() {\n        self._read();\n      });\n      return;\n    }\n\n    fs.open(this.path, this.flags, this.mode, function (err, fd) {\n      if (err) {\n        self.emit('error', err);\n        self.readable = false;\n        return;\n      }\n\n      self.fd = fd;\n      self.emit('open', fd);\n      self._read();\n    })\n  }\n\n  function WriteStream (path, options) {\n    if (!(this instanceof WriteStream)) return new WriteStream(path, options);\n\n    Stream.call(this);\n\n    this.path = path;\n    this.fd = null;\n    this.writable = true;\n\n    this.flags = 'w';\n    this.encoding = 'binary';\n    this.mode = 438; /*=0666*/\n    this.bytesWritten = 0;\n\n    options = options || {};\n\n    // Mixin options into this\n    var keys = Object.keys(options);\n    for (var index = 0, length = keys.length; index < length; index++) {\n      var key = keys[index];\n      this[key] = options[key];\n    }\n\n    if (this.start !== undefined) {\n      if ('number' !== typeof this.start) {\n        throw TypeError('start must be a Number');\n      }\n      if (this.start < 0) {\n        throw new Error('start must be >= zero');\n      }\n\n      this.pos = this.start;\n    }\n\n    this.busy = false;\n    this._queue = [];\n\n    if (this.fd === null) {\n      this._open = fs.open;\n      this._queue.push([this._open, this.path, this.flags, this.mode, undefined]);\n      this.flush();\n    }\n  }\n}\n","'use strict'\n\nmodule.exports = clone\n\nvar getPrototypeOf = Object.getPrototypeOf || function (obj) {\n  return obj.__proto__\n}\n\nfunction clone (obj) {\n  if (obj === null || typeof obj !== 'object')\n    return obj\n\n  if (obj instanceof Object)\n    var copy = { __proto__: getPrototypeOf(obj) }\n  else\n    var copy = Object.create(null)\n\n  Object.getOwnPropertyNames(obj).forEach(function (key) {\n    Object.defineProperty(copy, key, Object.getOwnPropertyDescriptor(obj, key))\n  })\n\n  return copy\n}\n","'use strict'\n// This is adapted from https://github.com/normalize/mz\n// Copyright (c) 2014-2016 Jonathan Ong me@jongleberry.com and Contributors\nconst u = require('universalify').fromCallback\nconst fs = require('graceful-fs')\n\nconst api = [\n  'access',\n  'appendFile',\n  'chmod',\n  'chown',\n  'close',\n  'copyFile',\n  'fchmod',\n  'fchown',\n  'fdatasync',\n  'fstat',\n  'fsync',\n  'ftruncate',\n  'futimes',\n  'lchmod',\n  'lchown',\n  'link',\n  'lstat',\n  'mkdir',\n  'mkdtemp',\n  'open',\n  'opendir',\n  'readdir',\n  'readFile',\n  'readlink',\n  'realpath',\n  'rename',\n  'rm',\n  'rmdir',\n  'stat',\n  'symlink',\n  'truncate',\n  'unlink',\n  'utimes',\n  'writeFile'\n].filter(key => {\n  // Some commands are not available on some systems. Ex:\n  // fs.opendir was added in Node.js v12.12.0\n  // fs.rm was added in Node.js v14.14.0\n  // fs.lchown is not available on at least some Linux\n  return typeof fs[key] === 'function'\n})\n\n// Export cloned fs:\nObject.assign(exports, fs)\n\n// Universalify async methods:\napi.forEach(method => {\n  exports[method] = u(fs[method])\n})\n\n// We differ from mz/fs in that we still ship the old, broken, fs.exists()\n// since we are a drop-in replacement for the native module\nexports.exists = function (filename, callback) {\n  if (typeof callback === 'function') {\n    return fs.exists(filename, callback)\n  }\n  return new Promise(resolve => {\n    return fs.exists(filename, resolve)\n  })\n}\n\n// fs.read(), fs.write(), & fs.writev() need special treatment due to multiple callback args\n\nexports.read = function (fd, buffer, offset, length, position, callback) {\n  if (typeof callback === 'function') {\n    return fs.read(fd, buffer, offset, length, position, callback)\n  }\n  return new Promise((resolve, reject) => {\n    fs.read(fd, buffer, offset, length, position, (err, bytesRead, buffer) => {\n      if (err) return reject(err)\n      resolve({ bytesRead, buffer })\n    })\n  })\n}\n\n// Function signature can be\n// fs.write(fd, buffer[, offset[, length[, position]]], callback)\n// OR\n// fs.write(fd, string[, position[, encoding]], callback)\n// We need to handle both cases, so we use ...args\nexports.write = function (fd, buffer, ...args) {\n  if (typeof args[args.length - 1] === 'function') {\n    return fs.write(fd, buffer, ...args)\n  }\n\n  return new Promise((resolve, reject) => {\n    fs.write(fd, buffer, ...args, (err, bytesWritten, buffer) => {\n      if (err) return reject(err)\n      resolve({ bytesWritten, buffer })\n    })\n  })\n}\n\n// fs.writev only available in Node v12.9.0+\nif (typeof fs.writev === 'function') {\n  // Function signature is\n  // s.writev(fd, buffers[, position], callback)\n  // We need to handle the optional arg, so we use ...args\n  exports.writev = function (fd, buffers, ...args) {\n    if (typeof args[args.length - 1] === 'function') {\n      return fs.writev(fd, buffers, ...args)\n    }\n\n    return new Promise((resolve, reject) => {\n      fs.writev(fd, buffers, ...args, (err, bytesWritten, buffers) => {\n        if (err) return reject(err)\n        resolve({ bytesWritten, buffers })\n      })\n    })\n  }\n}\n\n// fs.realpath.native sometimes not available if fs is monkey-patched\nif (typeof fs.realpath.native === 'function') {\n  exports.realpath.native = u(fs.realpath.native)\n} else {\n  process.emitWarning(\n    'fs.realpath.native is not a function. Is fs being monkey-patched?',\n    'Warning', 'fs-extra-WARN0003'\n  )\n}\n","// Adapted from https://github.com/sindresorhus/make-dir\n// Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)\n// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the \"Software\"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:\n// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n'use strict'\nconst path = require('path')\n\n// https://github.com/nodejs/node/issues/8987\n// https://github.com/libuv/libuv/pull/1088\nmodule.exports.checkPath = function checkPath (pth) {\n  if (process.platform === 'win32') {\n    const pathHasInvalidWinCharacters = /[<>:\"|?*]/.test(pth.replace(path.parse(pth).root, ''))\n\n    if (pathHasInvalidWinCharacters) {\n      const error = new Error(`Path contains invalid characters: ${pth}`)\n      error.code = 'EINVAL'\n      throw error\n    }\n  }\n}\n","'use strict'\nconst fs = require('../fs')\nconst { checkPath } = require('./utils')\n\nconst getMode = options => {\n  const defaults = { mode: 0o777 }\n  if (typeof options === 'number') return options\n  return ({ ...defaults, ...options }).mode\n}\n\nmodule.exports.makeDir = async (dir, options) => {\n  checkPath(dir)\n\n  return fs.mkdir(dir, {\n    mode: getMode(options),\n    recursive: true\n  })\n}\n\nmodule.exports.makeDirSync = (dir, options) => {\n  checkPath(dir)\n\n  return fs.mkdirSync(dir, {\n    mode: getMode(options),\n    recursive: true\n  })\n}\n","'use strict'\nconst u = require('universalify').fromPromise\nconst { makeDir: _makeDir, makeDirSync } = require('./make-dir')\nconst makeDir = u(_makeDir)\n\nmodule.exports = {\n  mkdirs: makeDir,\n  mkdirsSync: makeDirSync,\n  // alias\n  mkdirp: makeDir,\n  mkdirpSync: makeDirSync,\n  ensureDir: makeDir,\n  ensureDirSync: makeDirSync\n}\n","'use strict'\nconst u = require('universalify').fromPromise\nconst fs = require('../fs')\n\nfunction pathExists (path) {\n  return fs.access(path).then(() => true).catch(() => false)\n}\n\nmodule.exports = {\n  pathExists: u(pathExists),\n  pathExistsSync: fs.existsSync\n}\n","'use strict'\n\nconst fs = require('graceful-fs')\n\nfunction utimesMillis (path, atime, mtime, callback) {\n  // if (!HAS_MILLIS_RES) return fs.utimes(path, atime, mtime, callback)\n  fs.open(path, 'r+', (err, fd) => {\n    if (err) return callback(err)\n    fs.futimes(fd, atime, mtime, futimesErr => {\n      fs.close(fd, closeErr => {\n        if (callback) callback(futimesErr || closeErr)\n      })\n    })\n  })\n}\n\nfunction utimesMillisSync (path, atime, mtime) {\n  const fd = fs.openSync(path, 'r+')\n  fs.futimesSync(fd, atime, mtime)\n  return fs.closeSync(fd)\n}\n\nmodule.exports = {\n  utimesMillis,\n  utimesMillisSync\n}\n","'use strict'\n\nconst fs = require('../fs')\nconst path = require('path')\nconst util = require('util')\n\nfunction getStats (src, dest, opts) {\n  const statFunc = opts.dereference\n    ? (file) => fs.stat(file, { bigint: true })\n    : (file) => fs.lstat(file, { bigint: true })\n  return Promise.all([\n    statFunc(src),\n    statFunc(dest).catch(err => {\n      if (err.code === 'ENOENT') return null\n      throw err\n    })\n  ]).then(([srcStat, destStat]) => ({ srcStat, destStat }))\n}\n\nfunction getStatsSync (src, dest, opts) {\n  let destStat\n  const statFunc = opts.dereference\n    ? (file) => fs.statSync(file, { bigint: true })\n    : (file) => fs.lstatSync(file, { bigint: true })\n  const srcStat = statFunc(src)\n  try {\n    destStat = statFunc(dest)\n  } catch (err) {\n    if (err.code === 'ENOENT') return { srcStat, destStat: null }\n    throw err\n  }\n  return { srcStat, destStat }\n}\n\nfunction checkPaths (src, dest, funcName, opts, cb) {\n  util.callbackify(getStats)(src, dest, opts, (err, stats) => {\n    if (err) return cb(err)\n    const { srcStat, destStat } = stats\n\n    if (destStat) {\n      if (areIdentical(srcStat, destStat)) {\n        const srcBaseName = path.basename(src)\n        const destBaseName = path.basename(dest)\n        if (funcName === 'move' &&\n          srcBaseName !== destBaseName &&\n          srcBaseName.toLowerCase() === destBaseName.toLowerCase()) {\n          return cb(null, { srcStat, destStat, isChangingCase: true })\n        }\n        return cb(new Error('Source and destination must not be the same.'))\n      }\n      if (srcStat.isDirectory() && !destStat.isDirectory()) {\n        return cb(new Error(`Cannot overwrite non-directory '${dest}' with directory '${src}'.`))\n      }\n      if (!srcStat.isDirectory() && destStat.isDirectory()) {\n        return cb(new Error(`Cannot overwrite directory '${dest}' with non-directory '${src}'.`))\n      }\n    }\n\n    if (srcStat.isDirectory() && isSrcSubdir(src, dest)) {\n      return cb(new Error(errMsg(src, dest, funcName)))\n    }\n    return cb(null, { srcStat, destStat })\n  })\n}\n\nfunction checkPathsSync (src, dest, funcName, opts) {\n  const { srcStat, destStat } = getStatsSync(src, dest, opts)\n\n  if (destStat) {\n    if (areIdentical(srcStat, destStat)) {\n      const srcBaseName = path.basename(src)\n      const destBaseName = path.basename(dest)\n      if (funcName === 'move' &&\n        srcBaseName !== destBaseName &&\n        srcBaseName.toLowerCase() === destBaseName.toLowerCase()) {\n        return { srcStat, destStat, isChangingCase: true }\n      }\n      throw new Error('Source and destination must not be the same.')\n    }\n    if (srcStat.isDirectory() && !destStat.isDirectory()) {\n      throw new Error(`Cannot overwrite non-directory '${dest}' with directory '${src}'.`)\n    }\n    if (!srcStat.isDirectory() && destStat.isDirectory()) {\n      throw new Error(`Cannot overwrite directory '${dest}' with non-directory '${src}'.`)\n    }\n  }\n\n  if (srcStat.isDirectory() && isSrcSubdir(src, dest)) {\n    throw new Error(errMsg(src, dest, funcName))\n  }\n  return { srcStat, destStat }\n}\n\n// recursively check if dest parent is a subdirectory of src.\n// It works for all file types including symlinks since it\n// checks the src and dest inodes. It starts from the deepest\n// parent and stops once it reaches the src parent or the root path.\nfunction checkParentPaths (src, srcStat, dest, funcName, cb) {\n  const srcParent = path.resolve(path.dirname(src))\n  const destParent = path.resolve(path.dirname(dest))\n  if (destParent === srcParent || destParent === path.parse(destParent).root) return cb()\n  fs.stat(destParent, { bigint: true }, (err, destStat) => {\n    if (err) {\n      if (err.code === 'ENOENT') return cb()\n      return cb(err)\n    }\n    if (areIdentical(srcStat, destStat)) {\n      return cb(new Error(errMsg(src, dest, funcName)))\n    }\n    return checkParentPaths(src, srcStat, destParent, funcName, cb)\n  })\n}\n\nfunction checkParentPathsSync (src, srcStat, dest, funcName) {\n  const srcParent = path.resolve(path.dirname(src))\n  const destParent = path.resolve(path.dirname(dest))\n  if (destParent === srcParent || destParent === path.parse(destParent).root) return\n  let destStat\n  try {\n    destStat = fs.statSync(destParent, { bigint: true })\n  } catch (err) {\n    if (err.code === 'ENOENT') return\n    throw err\n  }\n  if (areIdentical(srcStat, destStat)) {\n    throw new Error(errMsg(src, dest, funcName))\n  }\n  return checkParentPathsSync(src, srcStat, destParent, funcName)\n}\n\nfunction areIdentical (srcStat, destStat) {\n  return destStat.ino && destStat.dev && destStat.ino === srcStat.ino && destStat.dev === srcStat.dev\n}\n\n// return true if dest is a subdir of src, otherwise false.\n// It only checks the path strings.\nfunction isSrcSubdir (src, dest) {\n  const srcArr = path.resolve(src).split(path.sep).filter(i => i)\n  const destArr = path.resolve(dest).split(path.sep).filter(i => i)\n  return srcArr.reduce((acc, cur, i) => acc && destArr[i] === cur, true)\n}\n\nfunction errMsg (src, dest, funcName) {\n  return `Cannot ${funcName} '${src}' to a subdirectory of itself, '${dest}'.`\n}\n\nmodule.exports = {\n  checkPaths,\n  checkPathsSync,\n  checkParentPaths,\n  checkParentPathsSync,\n  isSrcSubdir,\n  areIdentical\n}\n","'use strict'\n\nconst fs = require('graceful-fs')\nconst path = require('path')\nconst mkdirs = require('../mkdirs').mkdirs\nconst pathExists = require('../path-exists').pathExists\nconst utimesMillis = require('../util/utimes').utimesMillis\nconst stat = require('../util/stat')\n\nfunction copy (src, dest, opts, cb) {\n  if (typeof opts === 'function' && !cb) {\n    cb = opts\n    opts = {}\n  } else if (typeof opts === 'function') {\n    opts = { filter: opts }\n  }\n\n  cb = cb || function () {}\n  opts = opts || {}\n\n  opts.clobber = 'clobber' in opts ? !!opts.clobber : true // default to true for now\n  opts.overwrite = 'overwrite' in opts ? !!opts.overwrite : opts.clobber // overwrite falls back to clobber\n\n  // Warn about using preserveTimestamps on 32-bit node\n  if (opts.preserveTimestamps && process.arch === 'ia32') {\n    process.emitWarning(\n      'Using the preserveTimestamps option in 32-bit node is not recommended;\\n\\n' +\n      '\\tsee https://github.com/jprichardson/node-fs-extra/issues/269',\n      'Warning', 'fs-extra-WARN0001'\n    )\n  }\n\n  stat.checkPaths(src, dest, 'copy', opts, (err, stats) => {\n    if (err) return cb(err)\n    const { srcStat, destStat } = stats\n    stat.checkParentPaths(src, srcStat, dest, 'copy', err => {\n      if (err) return cb(err)\n      if (opts.filter) return handleFilter(checkParentDir, destStat, src, dest, opts, cb)\n      return checkParentDir(destStat, src, dest, opts, cb)\n    })\n  })\n}\n\nfunction checkParentDir (destStat, src, dest, opts, cb) {\n  const destParent = path.dirname(dest)\n  pathExists(destParent, (err, dirExists) => {\n    if (err) return cb(err)\n    if (dirExists) return getStats(destStat, src, dest, opts, cb)\n    mkdirs(destParent, err => {\n      if (err) return cb(err)\n      return getStats(destStat, src, dest, opts, cb)\n    })\n  })\n}\n\nfunction handleFilter (onInclude, destStat, src, dest, opts, cb) {\n  Promise.resolve(opts.filter(src, dest)).then(include => {\n    if (include) return onInclude(destStat, src, dest, opts, cb)\n    return cb()\n  }, error => cb(error))\n}\n\nfunction startCopy (destStat, src, dest, opts, cb) {\n  if (opts.filter) return handleFilter(getStats, destStat, src, dest, opts, cb)\n  return getStats(destStat, src, dest, opts, cb)\n}\n\nfunction getStats (destStat, src, dest, opts, cb) {\n  const stat = opts.dereference ? fs.stat : fs.lstat\n  stat(src, (err, srcStat) => {\n    if (err) return cb(err)\n\n    if (srcStat.isDirectory()) return onDir(srcStat, destStat, src, dest, opts, cb)\n    else if (srcStat.isFile() ||\n             srcStat.isCharacterDevice() ||\n             srcStat.isBlockDevice()) return onFile(srcStat, destStat, src, dest, opts, cb)\n    else if (srcStat.isSymbolicLink()) return onLink(destStat, src, dest, opts, cb)\n    else if (srcStat.isSocket()) return cb(new Error(`Cannot copy a socket file: ${src}`))\n    else if (srcStat.isFIFO()) return cb(new Error(`Cannot copy a FIFO pipe: ${src}`))\n    return cb(new Error(`Unknown file: ${src}`))\n  })\n}\n\nfunction onFile (srcStat, destStat, src, dest, opts, cb) {\n  if (!destStat) return copyFile(srcStat, src, dest, opts, cb)\n  return mayCopyFile(srcStat, src, dest, opts, cb)\n}\n\nfunction mayCopyFile (srcStat, src, dest, opts, cb) {\n  if (opts.overwrite) {\n    fs.unlink(dest, err => {\n      if (err) return cb(err)\n      return copyFile(srcStat, src, dest, opts, cb)\n    })\n  } else if (opts.errorOnExist) {\n    return cb(new Error(`'${dest}' already exists`))\n  } else return cb()\n}\n\nfunction copyFile (srcStat, src, dest, opts, cb) {\n  fs.copyFile(src, dest, err => {\n    if (err) return cb(err)\n    if (opts.preserveTimestamps) return handleTimestampsAndMode(srcStat.mode, src, dest, cb)\n    return setDestMode(dest, srcStat.mode, cb)\n  })\n}\n\nfunction handleTimestampsAndMode (srcMode, src, dest, cb) {\n  // Make sure the file is writable before setting the timestamp\n  // otherwise open fails with EPERM when invoked with 'r+'\n  // (through utimes call)\n  if (fileIsNotWritable(srcMode)) {\n    return makeFileWritable(dest, srcMode, err => {\n      if (err) return cb(err)\n      return setDestTimestampsAndMode(srcMode, src, dest, cb)\n    })\n  }\n  return setDestTimestampsAndMode(srcMode, src, dest, cb)\n}\n\nfunction fileIsNotWritable (srcMode) {\n  return (srcMode & 0o200) === 0\n}\n\nfunction makeFileWritable (dest, srcMode, cb) {\n  return setDestMode(dest, srcMode | 0o200, cb)\n}\n\nfunction setDestTimestampsAndMode (srcMode, src, dest, cb) {\n  setDestTimestamps(src, dest, err => {\n    if (err) return cb(err)\n    return setDestMode(dest, srcMode, cb)\n  })\n}\n\nfunction setDestMode (dest, srcMode, cb) {\n  return fs.chmod(dest, srcMode, cb)\n}\n\nfunction setDestTimestamps (src, dest, cb) {\n  // The initial srcStat.atime cannot be trusted\n  // because it is modified by the read(2) system call\n  // (See https://nodejs.org/api/fs.html#fs_stat_time_values)\n  fs.stat(src, (err, updatedSrcStat) => {\n    if (err) return cb(err)\n    return utimesMillis(dest, updatedSrcStat.atime, updatedSrcStat.mtime, cb)\n  })\n}\n\nfunction onDir (srcStat, destStat, src, dest, opts, cb) {\n  if (!destStat) return mkDirAndCopy(srcStat.mode, src, dest, opts, cb)\n  return copyDir(src, dest, opts, cb)\n}\n\nfunction mkDirAndCopy (srcMode, src, dest, opts, cb) {\n  fs.mkdir(dest, err => {\n    if (err) return cb(err)\n    copyDir(src, dest, opts, err => {\n      if (err) return cb(err)\n      return setDestMode(dest, srcMode, cb)\n    })\n  })\n}\n\nfunction copyDir (src, dest, opts, cb) {\n  fs.readdir(src, (err, items) => {\n    if (err) return cb(err)\n    return copyDirItems(items, src, dest, opts, cb)\n  })\n}\n\nfunction copyDirItems (items, src, dest, opts, cb) {\n  const item = items.pop()\n  if (!item) return cb()\n  return copyDirItem(items, item, src, dest, opts, cb)\n}\n\nfunction copyDirItem (items, item, src, dest, opts, cb) {\n  const srcItem = path.join(src, item)\n  const destItem = path.join(dest, item)\n  stat.checkPaths(srcItem, destItem, 'copy', opts, (err, stats) => {\n    if (err) return cb(err)\n    const { destStat } = stats\n    startCopy(destStat, srcItem, destItem, opts, err => {\n      if (err) return cb(err)\n      return copyDirItems(items, src, dest, opts, cb)\n    })\n  })\n}\n\nfunction onLink (destStat, src, dest, opts, cb) {\