Remove fs-extra dependency

package-lock.json

@@ -539,16 +539,6 @@
       "resolved": "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz",
       "integrity": "sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow=="
     },
-    "fs-extra": {
-      "version": "10.1.0",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-10.1.0.tgz",
-      "integrity": "sha512-oRXApq54ETRj4eMiFzGnHWGy+zo5raudjuxN0b8H7s/RU2oW0Wvsx9O0ACRN/kRq9E8Vu/ReskGB5o3ji+FzHQ==",
-      "requires": {
-        "graceful-fs": "^4.2.0",
-        "jsonfile": "^6.0.1",
-        "universalify": "^2.0.0"
-      }
-    },
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
@@ -665,15 +655,6 @@
       "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
       "integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw=="
     },
-    "jsonfile": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
-      "integrity": "sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==",
-      "requires": {
-        "graceful-fs": "^4.1.6",
-        "universalify": "^2.0.0"
-      }
-    },
     "jsonwebtoken": {
       "version": "8.5.1",
       "resolved": "https://registry.npmjs.org/jsonwebtoken/-/jsonwebtoken-8.5.1.tgz",
@@ -1152,11 +1133,6 @@
       "resolved": "https://registry.npmjs.org/typical/-/typical-4.0.0.tgz",
       "integrity": "sha512-VAH4IvQ7BDFYglMd7BPRDfLgxZZX4O4TFcRDA6EN5X7erNJJq+McIEp8np9aVtxrCJ6qx4GTYVfOWNjcqwZgRw=="
     },
-    "universalify": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.0.tgz",
-      "integrity": "sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ=="
-    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",

package.json

@@ -39,7 +39,6 @@
     "express-fileupload": "^1.2.1",
     "express-rate-limit": "^5.3.0",
     "fluent-ffmpeg": "^2.1.2",
-    "fs-extra": "^10.0.0",
     "htmlparser2": "^8.0.1",
     "jsonwebtoken": "^8.5.1",
     "node-ffprobe": "^3.0.0",

server/Server.js

@@ -2,7 +2,7 @@ const Path = require('path')
 const express = require('express')
 const http = require('http')
 const SocketIO = require('socket.io')
-const fs = require('fs-extra')
+const fs = require('./libs/fsExtra')
 const fileUpload = require('express-fileupload')
 const rateLimit = require('express-rate-limit')
 

server/controllers/LibraryController.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const filePerms = require('../utils/filePerms')
 const Logger = require('../Logger')
 const Library = require('../objects/Library')

server/controllers/MiscController.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Logger = require('../Logger')
 const filePerms = require('../utils/filePerms')
 

server/controllers/PodcastController.js

@@ -1,5 +1,5 @@
 const axios = require('axios')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Path = require('path')
 const Logger = require('../Logger')
 const { parsePodcastRssFeedXml } = require('../utils/podcastUtils')

server/finders/AuthorFinder.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Logger = require('../Logger')
 const Path = require('path')
 const Audnexus = require('../providers/Audnexus')

server/libs/fsExtra/LICENSE

@@ -0,0 +1,15 @@
+(The MIT License)
+
+Copyright (c) 2011-2017 JP Richardson
+
+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:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+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.

server/libs/fsExtra/copy/copy-sync.js

@@ -0,0 +1,169 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const mkdirsSync = require('../mkdirs').mkdirsSync
+const utimesMillisSync = require('../util/utimes').utimesMillisSync
+const stat = require('../util/stat')
+
+function copySync (src, dest, opts) {
+  if (typeof opts === 'function') {
+    opts = { filter: opts }
+  }
+
+  opts = opts || {}
+  opts.clobber = 'clobber' in opts ? !!opts.clobber : true // default to true for now
+  opts.overwrite = 'overwrite' in opts ? !!opts.overwrite : opts.clobber // overwrite falls back to clobber
+
+  // Warn about using preserveTimestamps on 32-bit node
+  if (opts.preserveTimestamps && process.arch === 'ia32') {
+    process.emitWarning(
+      'Using the preserveTimestamps option in 32-bit node is not recommended;\n\n' +
+      '\tsee https://github.com/jprichardson/node-fs-extra/issues/269',
+      'Warning', 'fs-extra-WARN0002'
+    )
+  }
+
+  const { srcStat, destStat } = stat.checkPathsSync(src, dest, 'copy', opts)
+  stat.checkParentPathsSync(src, srcStat, dest, 'copy')
+  return handleFilterAndCopy(destStat, src, dest, opts)
+}
+
+function handleFilterAndCopy (destStat, src, dest, opts) {
+  if (opts.filter && !opts.filter(src, dest)) return
+  const destParent = path.dirname(dest)
+  if (!fs.existsSync(destParent)) mkdirsSync(destParent)
+  return getStats(destStat, src, dest, opts)
+}
+
+function startCopy (destStat, src, dest, opts) {
+  if (opts.filter && !opts.filter(src, dest)) return
+  return getStats(destStat, src, dest, opts)
+}
+
+function getStats (destStat, src, dest, opts) {
+  const statSync = opts.dereference ? fs.statSync : fs.lstatSync
+  const srcStat = statSync(src)
+
+  if (srcStat.isDirectory()) return onDir(srcStat, destStat, src, dest, opts)
+  else if (srcStat.isFile() ||
+           srcStat.isCharacterDevice() ||
+           srcStat.isBlockDevice()) return onFile(srcStat, destStat, src, dest, opts)
+  else if (srcStat.isSymbolicLink()) return onLink(destStat, src, dest, opts)
+  else if (srcStat.isSocket()) throw new Error(`Cannot copy a socket file: ${src}`)
+  else if (srcStat.isFIFO()) throw new Error(`Cannot copy a FIFO pipe: ${src}`)
+  throw new Error(`Unknown file: ${src}`)
+}
+
+function onFile (srcStat, destStat, src, dest, opts) {
+  if (!destStat) return copyFile(srcStat, src, dest, opts)
+  return mayCopyFile(srcStat, src, dest, opts)
+}
+
+function mayCopyFile (srcStat, src, dest, opts) {
+  if (opts.overwrite) {
+    fs.unlinkSync(dest)
+    return copyFile(srcStat, src, dest, opts)
+  } else if (opts.errorOnExist) {
+    throw new Error(`'${dest}' already exists`)
+  }
+}
+
+function copyFile (srcStat, src, dest, opts) {
+  fs.copyFileSync(src, dest)
+  if (opts.preserveTimestamps) handleTimestamps(srcStat.mode, src, dest)
+  return setDestMode(dest, srcStat.mode)
+}
+
+function handleTimestamps (srcMode, src, dest) {
+  // Make sure the file is writable before setting the timestamp
+  // otherwise open fails with EPERM when invoked with 'r+'
+  // (through utimes call)
+  if (fileIsNotWritable(srcMode)) makeFileWritable(dest, srcMode)
+  return setDestTimestamps(src, dest)
+}
+
+function fileIsNotWritable (srcMode) {
+  return (srcMode & 0o200) === 0
+}
+
+function makeFileWritable (dest, srcMode) {
+  return setDestMode(dest, srcMode | 0o200)
+}
+
+function setDestMode (dest, srcMode) {
+  return fs.chmodSync(dest, srcMode)
+}
+
+function setDestTimestamps (src, dest) {
+  // The initial srcStat.atime cannot be trusted
+  // because it is modified by the read(2) system call
+  // (See https://nodejs.org/api/fs.html#fs_stat_time_values)
+  const updatedSrcStat = fs.statSync(src)
+  return utimesMillisSync(dest, updatedSrcStat.atime, updatedSrcStat.mtime)
+}
+
+function onDir (srcStat, destStat, src, dest, opts) {
+  if (!destStat) return mkDirAndCopy(srcStat.mode, src, dest, opts)
+  return copyDir(src, dest, opts)
+}
+
+function mkDirAndCopy (srcMode, src, dest, opts) {
+  fs.mkdirSync(dest)
+  copyDir(src, dest, opts)
+  return setDestMode(dest, srcMode)
+}
+
+function copyDir (src, dest, opts) {
+  fs.readdirSync(src).forEach(item => copyDirItem(item, src, dest, opts))
+}
+
+function copyDirItem (item, src, dest, opts) {
+  const srcItem = path.join(src, item)
+  const destItem = path.join(dest, item)
+  const { destStat } = stat.checkPathsSync(srcItem, destItem, 'copy', opts)
+  return startCopy(destStat, srcItem, destItem, opts)
+}
+
+function onLink (destStat, src, dest, opts) {
+  let resolvedSrc = fs.readlinkSync(src)
+  if (opts.dereference) {
+    resolvedSrc = path.resolve(process.cwd(), resolvedSrc)
+  }
+
+  if (!destStat) {
+    return fs.symlinkSync(resolvedSrc, dest)
+  } else {
+    let resolvedDest
+    try {
+      resolvedDest = fs.readlinkSync(dest)
+    } catch (err) {
+      // dest exists and is a regular file or directory,
+      // Windows may throw UNKNOWN error. If dest already exists,
+      // fs throws error anyway, so no need to guard against it here.
+      if (err.code === 'EINVAL' || err.code === 'UNKNOWN') return fs.symlinkSync(resolvedSrc, dest)
+      throw err
+    }
+    if (opts.dereference) {
+      resolvedDest = path.resolve(process.cwd(), resolvedDest)
+    }
+    if (stat.isSrcSubdir(resolvedSrc, resolvedDest)) {
+      throw new Error(`Cannot copy '${resolvedSrc}' to a subdirectory of itself, '${resolvedDest}'.`)
+    }
+
+    // prevent copy if src is a subdir of dest since unlinking
+    // dest in this case would result in removing src contents
+    // and therefore a broken symlink would be created.
+    if (fs.statSync(dest).isDirectory() && stat.isSrcSubdir(resolvedDest, resolvedSrc)) {
+      throw new Error(`Cannot overwrite '${resolvedDest}' with '${resolvedSrc}'.`)
+    }
+    return copyLink(resolvedSrc, dest)
+  }
+}
+
+function copyLink (resolvedSrc, dest) {
+  fs.unlinkSync(dest)
+  return fs.symlinkSync(resolvedSrc, dest)
+}
+
+module.exports = copySync

server/libs/fsExtra/copy/copy.js

@@ -0,0 +1,235 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const mkdirs = require('../mkdirs').mkdirs
+const pathExists = require('../path-exists').pathExists
+const utimesMillis = require('../util/utimes').utimesMillis
+const stat = require('../util/stat')
+
+function copy (src, dest, opts, cb) {
+  if (typeof opts === 'function' && !cb) {
+    cb = opts
+    opts = {}
+  } else if (typeof opts === 'function') {
+    opts = { filter: opts }
+  }
+
+  cb = cb || function () {}
+  opts = opts || {}
+
+  opts.clobber = 'clobber' in opts ? !!opts.clobber : true // default to true for now
+  opts.overwrite = 'overwrite' in opts ? !!opts.overwrite : opts.clobber // overwrite falls back to clobber
+
+  // Warn about using preserveTimestamps on 32-bit node
+  if (opts.preserveTimestamps && process.arch === 'ia32') {
+    process.emitWarning(
+      'Using the preserveTimestamps option in 32-bit node is not recommended;\n\n' +
+      '\tsee https://github.com/jprichardson/node-fs-extra/issues/269',
+      'Warning', 'fs-extra-WARN0001'
+    )
+  }
+
+  stat.checkPaths(src, dest, 'copy', opts, (err, stats) => {
+    if (err) return cb(err)
+    const { srcStat, destStat } = stats
+    stat.checkParentPaths(src, srcStat, dest, 'copy', err => {
+      if (err) return cb(err)
+      if (opts.filter) return handleFilter(checkParentDir, destStat, src, dest, opts, cb)
+      return checkParentDir(destStat, src, dest, opts, cb)
+    })
+  })
+}
+
+function checkParentDir (destStat, src, dest, opts, cb) {
+  const destParent = path.dirname(dest)
+  pathExists(destParent, (err, dirExists) => {
+    if (err) return cb(err)
+    if (dirExists) return getStats(destStat, src, dest, opts, cb)
+    mkdirs(destParent, err => {
+      if (err) return cb(err)
+      return getStats(destStat, src, dest, opts, cb)
+    })
+  })
+}
+
+function handleFilter (onInclude, destStat, src, dest, opts, cb) {
+  Promise.resolve(opts.filter(src, dest)).then(include => {
+    if (include) return onInclude(destStat, src, dest, opts, cb)
+    return cb()
+  }, error => cb(error))
+}
+
+function startCopy (destStat, src, dest, opts, cb) {
+  if (opts.filter) return handleFilter(getStats, destStat, src, dest, opts, cb)
+  return getStats(destStat, src, dest, opts, cb)
+}
+
+function getStats (destStat, src, dest, opts, cb) {
+  const stat = opts.dereference ? fs.stat : fs.lstat
+  stat(src, (err, srcStat) => {
+    if (err) return cb(err)
+
+    if (srcStat.isDirectory()) return onDir(srcStat, destStat, src, dest, opts, cb)
+    else if (srcStat.isFile() ||
+             srcStat.isCharacterDevice() ||
+             srcStat.isBlockDevice()) return onFile(srcStat, destStat, src, dest, opts, cb)
+    else if (srcStat.isSymbolicLink()) return onLink(destStat, src, dest, opts, cb)
+    else if (srcStat.isSocket()) return cb(new Error(`Cannot copy a socket file: ${src}`))
+    else if (srcStat.isFIFO()) return cb(new Error(`Cannot copy a FIFO pipe: ${src}`))
+    return cb(new Error(`Unknown file: ${src}`))
+  })
+}
+
+function onFile (srcStat, destStat, src, dest, opts, cb) {
+  if (!destStat) return copyFile(srcStat, src, dest, opts, cb)
+  return mayCopyFile(srcStat, src, dest, opts, cb)
+}
+
+function mayCopyFile (srcStat, src, dest, opts, cb) {
+  if (opts.overwrite) {
+    fs.unlink(dest, err => {
+      if (err) return cb(err)
+      return copyFile(srcStat, src, dest, opts, cb)
+    })
+  } else if (opts.errorOnExist) {
+    return cb(new Error(`'${dest}' already exists`))
+  } else return cb()
+}
+
+function copyFile (srcStat, src, dest, opts, cb) {
+  fs.copyFile(src, dest, err => {
+    if (err) return cb(err)
+    if (opts.preserveTimestamps) return handleTimestampsAndMode(srcStat.mode, src, dest, cb)
+    return setDestMode(dest, srcStat.mode, cb)
+  })
+}
+
+function handleTimestampsAndMode (srcMode, src, dest, cb) {
+  // Make sure the file is writable before setting the timestamp
+  // otherwise open fails with EPERM when invoked with 'r+'
+  // (through utimes call)
+  if (fileIsNotWritable(srcMode)) {
+    return makeFileWritable(dest, srcMode, err => {
+      if (err) return cb(err)
+      return setDestTimestampsAndMode(srcMode, src, dest, cb)
+    })
+  }
+  return setDestTimestampsAndMode(srcMode, src, dest, cb)
+}
+
+function fileIsNotWritable (srcMode) {
+  return (srcMode & 0o200) === 0
+}
+
+function makeFileWritable (dest, srcMode, cb) {
+  return setDestMode(dest, srcMode | 0o200, cb)
+}
+
+function setDestTimestampsAndMode (srcMode, src, dest, cb) {
+  setDestTimestamps(src, dest, err => {
+    if (err) return cb(err)
+    return setDestMode(dest, srcMode, cb)
+  })
+}
+
+function setDestMode (dest, srcMode, cb) {
+  return fs.chmod(dest, srcMode, cb)
+}
+
+function setDestTimestamps (src, dest, cb) {
+  // The initial srcStat.atime cannot be trusted
+  // because it is modified by the read(2) system call
+  // (See https://nodejs.org/api/fs.html#fs_stat_time_values)
+  fs.stat(src, (err, updatedSrcStat) => {
+    if (err) return cb(err)
+    return utimesMillis(dest, updatedSrcStat.atime, updatedSrcStat.mtime, cb)
+  })
+}
+
+function onDir (srcStat, destStat, src, dest, opts, cb) {
+  if (!destStat) return mkDirAndCopy(srcStat.mode, src, dest, opts, cb)
+  return copyDir(src, dest, opts, cb)
+}
+
+function mkDirAndCopy (srcMode, src, dest, opts, cb) {
+  fs.mkdir(dest, err => {
+    if (err) return cb(err)
+    copyDir(src, dest, opts, err => {
+      if (err) return cb(err)
+      return setDestMode(dest, srcMode, cb)
+    })
+  })
+}
+
+function copyDir (src, dest, opts, cb) {
+  fs.readdir(src, (err, items) => {
+    if (err) return cb(err)
+    return copyDirItems(items, src, dest, opts, cb)
+  })
+}
+
+function copyDirItems (items, src, dest, opts, cb) {
+  const item = items.pop()
+  if (!item) return cb()
+  return copyDirItem(items, item, src, dest, opts, cb)
+}
+
+function copyDirItem (items, item, src, dest, opts, cb) {
+  const srcItem = path.join(src, item)
+  const destItem = path.join(dest, item)
+  stat.checkPaths(srcItem, destItem, 'copy', opts, (err, stats) => {
+    if (err) return cb(err)
+    const { destStat } = stats
+    startCopy(destStat, srcItem, destItem, opts, err => {
+      if (err) return cb(err)
+      return copyDirItems(items, src, dest, opts, cb)
+    })
+  })
+}
+
+function onLink (destStat, src, dest, opts, cb) {
+  fs.readlink(src, (err, resolvedSrc) => {
+    if (err) return cb(err)
+    if (opts.dereference) {
+      resolvedSrc = path.resolve(process.cwd(), resolvedSrc)
+    }
+
+    if (!destStat) {
+      return fs.symlink(resolvedSrc, dest, cb)
+    } else {
+      fs.readlink(dest, (err, resolvedDest) => {
+        if (err) {
+          // dest exists and is a regular file or directory,
+          // Windows may throw UNKNOWN error. If dest already exists,
+          // fs throws error anyway, so no need to guard against it here.
+          if (err.code === 'EINVAL' || err.code === 'UNKNOWN') return fs.symlink(resolvedSrc, dest, cb)
+          return cb(err)
+        }
+        if (opts.dereference) {
+          resolvedDest = path.resolve(process.cwd(), resolvedDest)
+        }
+        if (stat.isSrcSubdir(resolvedSrc, resolvedDest)) {
+          return cb(new Error(`Cannot copy '${resolvedSrc}' to a subdirectory of itself, '${resolvedDest}'.`))
+        }
+
+        // do not copy if src is a subdir of dest since unlinking
+        // dest in this case would result in removing src contents
+        // and therefore a broken symlink would be created.
+        if (destStat.isDirectory() && stat.isSrcSubdir(resolvedDest, resolvedSrc)) {
+          return cb(new Error(`Cannot overwrite '${resolvedDest}' with '${resolvedSrc}'.`))
+        }
+        return copyLink(resolvedSrc, dest, cb)
+      })
+    }
+  })
+}
+
+function copyLink (resolvedSrc, dest, cb) {
+  fs.unlink(dest, err => {
+    if (err) return cb(err)
+    return fs.symlink(resolvedSrc, dest, cb)
+  })
+}
+
+module.exports = copy

server/libs/fsExtra/copy/index.js

@@ -0,0 +1,7 @@
+'use strict'
+
+const u = require('../../universalify').fromCallback
+module.exports = {
+  copy: u(require('./copy')),
+  copySync: require('./copy-sync')
+}

server/libs/fsExtra/empty/index.js

@@ -0,0 +1,39 @@
+'use strict'
+
+const u = require('../../universalify').fromPromise
+const fs = require('../fs')
+const path = require('path')
+const mkdir = require('../mkdirs')
+const remove = require('../remove')
+
+const emptyDir = u(async function emptyDir(dir) {
+  let items
+  try {
+    items = await fs.readdir(dir)
+  } catch {
+    return mkdir.mkdirs(dir)
+  }
+
+  return Promise.all(items.map(item => remove.remove(path.join(dir, item))))
+})
+
+function emptyDirSync(dir) {
+  let items
+  try {
+    items = fs.readdirSync(dir)
+  } catch {
+    return mkdir.mkdirsSync(dir)
+  }
+
+  items.forEach(item => {
+    item = path.join(dir, item)
+    remove.removeSync(item)
+  })
+}
+
+module.exports = {
+  emptyDirSync,
+  emptydirSync: emptyDirSync,
+  emptyDir,
+  emptydir: emptyDir
+}

server/libs/fsExtra/ensure/file.js

@@ -0,0 +1,69 @@
+'use strict'
+
+const u = require('../../universalify').fromCallback
+const path = require('path')
+const fs = require('graceful-fs')
+const mkdir = require('../mkdirs')
+
+function createFile(file, callback) {
+  function makeFile() {
+    fs.writeFile(file, '', err => {
+      if (err) return callback(err)
+      callback()
+    })
+  }
+
+  fs.stat(file, (err, stats) => { // eslint-disable-line handle-callback-err
+    if (!err && stats.isFile()) return callback()
+    const dir = path.dirname(file)
+    fs.stat(dir, (err, stats) => {
+      if (err) {
+        // if the directory doesn't exist, make it
+        if (err.code === 'ENOENT') {
+          return mkdir.mkdirs(dir, err => {
+            if (err) return callback(err)
+            makeFile()
+          })
+        }
+        return callback(err)
+      }
+
+      if (stats.isDirectory()) makeFile()
+      else {
+        // parent is not a directory
+        // This is just to cause an internal ENOTDIR error to be thrown
+        fs.readdir(dir, err => {
+          if (err) return callback(err)
+        })
+      }
+    })
+  })
+}
+
+function createFileSync(file) {
+  let stats
+  try {
+    stats = fs.statSync(file)
+  } catch { }
+  if (stats && stats.isFile()) return
+
+  const dir = path.dirname(file)
+  try {
+    if (!fs.statSync(dir).isDirectory()) {
+      // parent is not a directory
+      // This is just to cause an internal ENOTDIR error to be thrown
+      fs.readdirSync(dir)
+    }
+  } catch (err) {
+    // If the stat call above failed because the directory doesn't exist, create it
+    if (err && err.code === 'ENOENT') mkdir.mkdirsSync(dir)
+    else throw err
+  }
+
+  fs.writeFileSync(file, '')
+}
+
+module.exports = {
+  createFile: u(createFile),
+  createFileSync
+}

server/libs/fsExtra/ensure/index.js

@@ -0,0 +1,23 @@
+'use strict'
+
+const { createFile, createFileSync } = require('./file')
+const { createLink, createLinkSync } = require('./link')
+const { createSymlink, createSymlinkSync } = require('./symlink')
+
+module.exports = {
+  // file
+  createFile,
+  createFileSync,
+  ensureFile: createFile,
+  ensureFileSync: createFileSync,
+  // link
+  createLink,
+  createLinkSync,
+  ensureLink: createLink,
+  ensureLinkSync: createLinkSync,
+  // symlink
+  createSymlink,
+  createSymlinkSync,
+  ensureSymlink: createSymlink,
+  ensureSymlinkSync: createSymlinkSync
+}

server/libs/fsExtra/ensure/link.js

@@ -0,0 +1,64 @@
+'use strict'
+
+const u = require('../../universalify').fromCallback
+const path = require('path')
+const fs = require('graceful-fs')
+const mkdir = require('../mkdirs')
+const pathExists = require('../path-exists').pathExists
+const { areIdentical } = require('../util/stat')
+
+function createLink(srcpath, dstpath, callback) {
+  function makeLink(srcpath, dstpath) {
+    fs.link(srcpath, dstpath, err => {
+      if (err) return callback(err)
+      callback(null)
+    })
+  }
+
+  fs.lstat(dstpath, (_, dstStat) => {
+    fs.lstat(srcpath, (err, srcStat) => {
+      if (err) {
+        err.message = err.message.replace('lstat', 'ensureLink')
+        return callback(err)
+      }
+      if (dstStat && areIdentical(srcStat, dstStat)) return callback(null)
+
+      const dir = path.dirname(dstpath)
+      pathExists(dir, (err, dirExists) => {
+        if (err) return callback(err)
+        if (dirExists) return makeLink(srcpath, dstpath)
+        mkdir.mkdirs(dir, err => {
+          if (err) return callback(err)
+          makeLink(srcpath, dstpath)
+        })
+      })
+    })
+  })
+}
+
+function createLinkSync(srcpath, dstpath) {
+  let dstStat
+  try {
+    dstStat = fs.lstatSync(dstpath)
+  } catch { }
+
+  try {
+    const srcStat = fs.lstatSync(srcpath)
+    if (dstStat && areIdentical(srcStat, dstStat)) return
+  } catch (err) {
+    err.message = err.message.replace('lstat', 'ensureLink')
+    throw err
+  }
+
+  const dir = path.dirname(dstpath)
+  const dirExists = fs.existsSync(dir)
+  if (dirExists) return fs.linkSync(srcpath, dstpath)
+  mkdir.mkdirsSync(dir)
+
+  return fs.linkSync(srcpath, dstpath)
+}
+
+module.exports = {
+  createLink: u(createLink),
+  createLinkSync
+}

server/libs/fsExtra/ensure/symlink-paths.js

@@ -0,0 +1,99 @@
+'use strict'
+
+const path = require('path')
+const fs = require('graceful-fs')
+const pathExists = require('../path-exists').pathExists
+
+/**
+ * Function that returns two types of paths, one relative to symlink, and one
+ * relative to the current working directory. Checks if path is absolute or
+ * relative. If the path is relative, this function checks if the path is
+ * relative to symlink or relative to current working directory. This is an
+ * initiative to find a smarter `srcpath` to supply when building symlinks.
+ * This allows you to determine which path to use out of one of three possible
+ * types of source paths. The first is an absolute path. This is detected by
+ * `path.isAbsolute()`. When an absolute path is provided, it is checked to
+ * see if it exists. If it does it's used, if not an error is returned
+ * (callback)/ thrown (sync). The other two options for `srcpath` are a
+ * relative url. By default Node's `fs.symlink` works by creating a symlink
+ * using `dstpath` and expects the `srcpath` to be relative to the newly
+ * created symlink. If you provide a `srcpath` that does not exist on the file
+ * system it results in a broken symlink. To minimize this, the function
+ * checks to see if the 'relative to symlink' source file exists, and if it
+ * does it will use it. If it does not, it checks if there's a file that
+ * exists that is relative to the current working directory, if does its used.
+ * This preserves the expectations of the original fs.symlink spec and adds
+ * the ability to pass in `relative to current working direcotry` paths.
+ */
+
+function symlinkPaths (srcpath, dstpath, callback) {
+  if (path.isAbsolute(srcpath)) {
+    return fs.lstat(srcpath, (err) => {
+      if (err) {
+        err.message = err.message.replace('lstat', 'ensureSymlink')
+        return callback(err)
+      }
+      return callback(null, {
+        toCwd: srcpath,
+        toDst: srcpath
+      })
+    })
+  } else {
+    const dstdir = path.dirname(dstpath)
+    const relativeToDst = path.join(dstdir, srcpath)
+    return pathExists(relativeToDst, (err, exists) => {
+      if (err) return callback(err)
+      if (exists) {
+        return callback(null, {
+          toCwd: relativeToDst,
+          toDst: srcpath
+        })
+      } else {
+        return fs.lstat(srcpath, (err) => {
+          if (err) {
+            err.message = err.message.replace('lstat', 'ensureSymlink')
+            return callback(err)
+          }
+          return callback(null, {
+            toCwd: srcpath,
+            toDst: path.relative(dstdir, srcpath)
+          })
+        })
+      }
+    })
+  }
+}
+
+function symlinkPathsSync (srcpath, dstpath) {
+  let exists
+  if (path.isAbsolute(srcpath)) {
+    exists = fs.existsSync(srcpath)
+    if (!exists) throw new Error('absolute srcpath does not exist')
+    return {
+      toCwd: srcpath,
+      toDst: srcpath
+    }
+  } else {
+    const dstdir = path.dirname(dstpath)
+    const relativeToDst = path.join(dstdir, srcpath)
+    exists = fs.existsSync(relativeToDst)
+    if (exists) {
+      return {
+        toCwd: relativeToDst,
+        toDst: srcpath
+      }
+    } else {
+      exists = fs.existsSync(srcpath)
+      if (!exists) throw new Error('relative srcpath does not exist')
+      return {
+        toCwd: srcpath,
+        toDst: path.relative(dstdir, srcpath)
+      }
+    }
+  }
+}
+
+module.exports = {
+  symlinkPaths,
+  symlinkPathsSync
+}

server/libs/fsExtra/ensure/symlink-type.js

@@ -0,0 +1,31 @@
+'use strict'
+
+const fs = require('graceful-fs')
+
+function symlinkType (srcpath, type, callback) {
+  callback = (typeof type === 'function') ? type : callback
+  type = (typeof type === 'function') ? false : type
+  if (type) return callback(null, type)
+  fs.lstat(srcpath, (err, stats) => {
+    if (err) return callback(null, 'file')
+    type = (stats && stats.isDirectory()) ? 'dir' : 'file'
+    callback(null, type)
+  })
+}
+
+function symlinkTypeSync (srcpath, type) {
+  let stats
+
+  if (type) return type
+  try {
+    stats = fs.lstatSync(srcpath)
+  } catch {
+    return 'file'
+  }
+  return (stats && stats.isDirectory()) ? 'dir' : 'file'
+}
+
+module.exports = {
+  symlinkType,
+  symlinkTypeSync
+}

server/libs/fsExtra/ensure/symlink.js

@@ -0,0 +1,82 @@
+'use strict'
+
+const u = require('../../universalify').fromCallback
+const path = require('path')
+const fs = require('../fs')
+const _mkdirs = require('../mkdirs')
+const mkdirs = _mkdirs.mkdirs
+const mkdirsSync = _mkdirs.mkdirsSync
+
+const _symlinkPaths = require('./symlink-paths')
+const symlinkPaths = _symlinkPaths.symlinkPaths
+const symlinkPathsSync = _symlinkPaths.symlinkPathsSync
+
+const _symlinkType = require('./symlink-type')
+const symlinkType = _symlinkType.symlinkType
+const symlinkTypeSync = _symlinkType.symlinkTypeSync
+
+const pathExists = require('../path-exists').pathExists
+
+const { areIdentical } = require('../util/stat')
+
+function createSymlink(srcpath, dstpath, type, callback) {
+  callback = (typeof type === 'function') ? type : callback
+  type = (typeof type === 'function') ? false : type
+
+  fs.lstat(dstpath, (err, stats) => {
+    if (!err && stats.isSymbolicLink()) {
+      Promise.all([
+        fs.stat(srcpath),
+        fs.stat(dstpath)
+      ]).then(([srcStat, dstStat]) => {
+        if (areIdentical(srcStat, dstStat)) return callback(null)
+        _createSymlink(srcpath, dstpath, type, callback)
+      })
+    } else _createSymlink(srcpath, dstpath, type, callback)
+  })
+}
+
+function _createSymlink(srcpath, dstpath, type, callback) {
+  symlinkPaths(srcpath, dstpath, (err, relative) => {
+    if (err) return callback(err)
+    srcpath = relative.toDst
+    symlinkType(relative.toCwd, type, (err, type) => {
+      if (err) return callback(err)
+      const dir = path.dirname(dstpath)
+      pathExists(dir, (err, dirExists) => {
+        if (err) return callback(err)
+        if (dirExists) return fs.symlink(srcpath, dstpath, type, callback)
+        mkdirs(dir, err => {
+          if (err) return callback(err)
+          fs.symlink(srcpath, dstpath, type, callback)
+        })
+      })
+    })
+  })
+}
+
+function createSymlinkSync(srcpath, dstpath, type) {
+  let stats
+  try {
+    stats = fs.lstatSync(dstpath)
+  } catch { }
+  if (stats && stats.isSymbolicLink()) {
+    const srcStat = fs.statSync(srcpath)
+    const dstStat = fs.statSync(dstpath)
+    if (areIdentical(srcStat, dstStat)) return
+  }
+
+  const relative = symlinkPathsSync(srcpath, dstpath)
+  srcpath = relative.toDst
+  type = symlinkTypeSync(relative.toCwd, type)
+  const dir = path.dirname(dstpath)
+  const exists = fs.existsSync(dir)
+  if (exists) return fs.symlinkSync(srcpath, dstpath, type)
+  mkdirsSync(dir)
+  return fs.symlinkSync(srcpath, dstpath, type)
+}
+
+module.exports = {
+  createSymlink: u(createSymlink),
+  createSymlinkSync
+}

server/libs/fsExtra/fs/index.js

@@ -0,0 +1,128 @@
+'use strict'
+// This is adapted from https://github.com/normalize/mz
+// Copyright (c) 2014-2016 Jonathan Ong me@jongleberry.com and Contributors
+const u = require('../../universalify').fromCallback
+const fs = require('graceful-fs')
+
+const api = [
+  'access',
+  'appendFile',
+  'chmod',
+  'chown',
+  'close',
+  'copyFile',
+  'fchmod',
+  'fchown',
+  'fdatasync',
+  'fstat',
+  'fsync',
+  'ftruncate',
+  'futimes',
+  'lchmod',
+  'lchown',
+  'link',
+  'lstat',
+  'mkdir',
+  'mkdtemp',
+  'open',
+  'opendir',
+  'readdir',
+  'readFile',
+  'readlink',
+  'realpath',
+  'rename',
+  'rm',
+  'rmdir',
+  'stat',
+  'symlink',
+  'truncate',
+  'unlink',
+  'utimes',
+  'writeFile'
+].filter(key => {
+  // Some commands are not available on some systems. Ex:
+  // fs.opendir was added in Node.js v12.12.0
+  // fs.rm was added in Node.js v14.14.0
+  // fs.lchown is not available on at least some Linux
+  return typeof fs[key] === 'function'
+})
+
+// Export cloned fs:
+Object.assign(exports, fs)
+
+// Universalify async methods:
+api.forEach(method => {
+  exports[method] = u(fs[method])
+})
+
+// We differ from mz/fs in that we still ship the old, broken, fs.exists()
+// since we are a drop-in replacement for the native module
+exports.exists = function (filename, callback) {
+  if (typeof callback === 'function') {
+    return fs.exists(filename, callback)
+  }
+  return new Promise(resolve => {
+    return fs.exists(filename, resolve)
+  })
+}
+
+// fs.read(), fs.write(), & fs.writev() need special treatment due to multiple callback args
+
+exports.read = function (fd, buffer, offset, length, position, callback) {
+  if (typeof callback === 'function') {
+    return fs.read(fd, buffer, offset, length, position, callback)
+  }
+  return new Promise((resolve, reject) => {
+    fs.read(fd, buffer, offset, length, position, (err, bytesRead, buffer) => {
+      if (err) return reject(err)
+      resolve({ bytesRead, buffer })
+    })
+  })
+}
+
+// Function signature can be
+// fs.write(fd, buffer[, offset[, length[, position]]], callback)
+// OR
+// fs.write(fd, string[, position[, encoding]], callback)
+// We need to handle both cases, so we use ...args
+exports.write = function (fd, buffer, ...args) {
+  if (typeof args[args.length - 1] === 'function') {
+    return fs.write(fd, buffer, ...args)
+  }
+
+  return new Promise((resolve, reject) => {
+    fs.write(fd, buffer, ...args, (err, bytesWritten, buffer) => {
+      if (err) return reject(err)
+      resolve({ bytesWritten, buffer })
+    })
+  })
+}
+
+// fs.writev only available in Node v12.9.0+
+if (typeof fs.writev === 'function') {
+  // Function signature is
+  // s.writev(fd, buffers[, position], callback)
+  // We need to handle the optional arg, so we use ...args
+  exports.writev = function (fd, buffers, ...args) {
+    if (typeof args[args.length - 1] === 'function') {
+      return fs.writev(fd, buffers, ...args)
+    }
+
+    return new Promise((resolve, reject) => {
+      fs.writev(fd, buffers, ...args, (err, bytesWritten, buffers) => {
+        if (err) return reject(err)
+        resolve({ bytesWritten, buffers })
+      })
+    })
+  }
+}
+
+// fs.realpath.native sometimes not available if fs is monkey-patched
+if (typeof fs.realpath.native === 'function') {
+  exports.realpath.native = u(fs.realpath.native)
+} else {
+  process.emitWarning(
+    'fs.realpath.native is not a function. Is fs being monkey-patched?',
+    'Warning', 'fs-extra-WARN0003'
+  )
+}

server/libs/fsExtra/index.js

@@ -0,0 +1,14 @@
+'use strict'
+
+module.exports = {
+  // Export promiseified graceful-fs:
+  ...require('./fs'),
+  // Export extra methods:
+  ...require('./copy'),
+  ...require('./empty'),
+  ...require('./ensure'),
+  ...require('./mkdirs'),
+  ...require('./move'),
+  ...require('./path-exists'),
+  ...require('./remove')
+}

server/libs/fsExtra/mkdirs/index.js

@@ -0,0 +1,14 @@
+'use strict'
+const u = require('../../universalify').fromPromise
+const { makeDir: _makeDir, makeDirSync } = require('./make-dir')
+const makeDir = u(_makeDir)
+
+module.exports = {
+  mkdirs: makeDir,
+  mkdirsSync: makeDirSync,
+  // alias
+  mkdirp: makeDir,
+  mkdirpSync: makeDirSync,
+  ensureDir: makeDir,
+  ensureDirSync: makeDirSync
+}

server/libs/fsExtra/mkdirs/make-dir.js

@@ -0,0 +1,27 @@
+'use strict'
+const fs = require('../fs')
+const { checkPath } = require('./utils')
+
+const getMode = options => {
+  const defaults = { mode: 0o777 }
+  if (typeof options === 'number') return options
+  return ({ ...defaults, ...options }).mode
+}
+
+module.exports.makeDir = async (dir, options) => {
+  checkPath(dir)
+
+  return fs.mkdir(dir, {
+    mode: getMode(options),
+    recursive: true
+  })
+}
+
+module.exports.makeDirSync = (dir, options) => {
+  checkPath(dir)
+
+  return fs.mkdirSync(dir, {
+    mode: getMode(options),
+    recursive: true
+  })
+}

server/libs/fsExtra/mkdirs/utils.js

@@ -0,0 +1,21 @@
+// Adapted from https://github.com/sindresorhus/make-dir
+// Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+// 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:
+// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+// 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.
+'use strict'
+const path = require('path')
+
+// https://github.com/nodejs/node/issues/8987
+// https://github.com/libuv/libuv/pull/1088
+module.exports.checkPath = function checkPath (pth) {
+  if (process.platform === 'win32') {
+    const pathHasInvalidWinCharacters = /[<>:"|?*]/.test(pth.replace(path.parse(pth).root, ''))
+
+    if (pathHasInvalidWinCharacters) {
+      const error = new Error(`Path contains invalid characters: ${pth}`)
+      error.code = 'EINVAL'
+      throw error
+    }
+  }
+}

server/libs/fsExtra/move/index.js

@@ -0,0 +1,7 @@
+'use strict'
+
+const u = require('../../universalify').fromCallback
+module.exports = {
+  move: u(require('./move')),
+  moveSync: require('./move-sync')
+}

server/libs/fsExtra/move/move-sync.js

@@ -0,0 +1,54 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const copySync = require('../copy').copySync
+const removeSync = require('../remove').removeSync
+const mkdirpSync = require('../mkdirs').mkdirpSync
+const stat = require('../util/stat')
+
+function moveSync (src, dest, opts) {
+  opts = opts || {}
+  const overwrite = opts.overwrite || opts.clobber || false
+
+  const { srcStat, isChangingCase = false } = stat.checkPathsSync(src, dest, 'move', opts)
+  stat.checkParentPathsSync(src, srcStat, dest, 'move')
+  if (!isParentRoot(dest)) mkdirpSync(path.dirname(dest))
+  return doRename(src, dest, overwrite, isChangingCase)
+}
+
+function isParentRoot (dest) {
+  const parent = path.dirname(dest)
+  const parsedPath = path.parse(parent)
+  return parsedPath.root === parent
+}
+
+function doRename (src, dest, overwrite, isChangingCase) {
+  if (isChangingCase) return rename(src, dest, overwrite)
+  if (overwrite) {
+    removeSync(dest)
+    return rename(src, dest, overwrite)
+  }
+  if (fs.existsSync(dest)) throw new Error('dest already exists.')
+  return rename(src, dest, overwrite)
+}
+
+function rename (src, dest, overwrite) {
+  try {
+    fs.renameSync(src, dest)
+  } catch (err) {
+    if (err.code !== 'EXDEV') throw err
+    return moveAcrossDevice(src, dest, overwrite)
+  }
+}
+
+function moveAcrossDevice (src, dest, overwrite) {
+  const opts = {
+    overwrite,
+    errorOnExist: true
+  }
+  copySync(src, dest, opts)
+  return removeSync(src)
+}
+
+module.exports = moveSync

server/libs/fsExtra/move/move.js

@@ -0,0 +1,75 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const copy = require('../copy').copy
+const remove = require('../remove').remove
+const mkdirp = require('../mkdirs').mkdirp
+const pathExists = require('../path-exists').pathExists
+const stat = require('../util/stat')
+
+function move (src, dest, opts, cb) {
+  if (typeof opts === 'function') {
+    cb = opts
+    opts = {}
+  }
+
+  opts = opts || {}
+
+  const overwrite = opts.overwrite || opts.clobber || false
+
+  stat.checkPaths(src, dest, 'move', opts, (err, stats) => {
+    if (err) return cb(err)
+    const { srcStat, isChangingCase = false } = stats
+    stat.checkParentPaths(src, srcStat, dest, 'move', err => {
+      if (err) return cb(err)
+      if (isParentRoot(dest)) return doRename(src, dest, overwrite, isChangingCase, cb)
+      mkdirp(path.dirname(dest), err => {
+        if (err) return cb(err)
+        return doRename(src, dest, overwrite, isChangingCase, cb)
+      })
+    })
+  })
+}
+
+function isParentRoot (dest) {
+  const parent = path.dirname(dest)
+  const parsedPath = path.parse(parent)
+  return parsedPath.root === parent
+}
+
+function doRename (src, dest, overwrite, isChangingCase, cb) {
+  if (isChangingCase) return rename(src, dest, overwrite, cb)
+  if (overwrite) {
+    return remove(dest, err => {
+      if (err) return cb(err)
+      return rename(src, dest, overwrite, cb)
+    })
+  }
+  pathExists(dest, (err, destExists) => {
+    if (err) return cb(err)
+    if (destExists) return cb(new Error('dest already exists.'))
+    return rename(src, dest, overwrite, cb)
+  })
+}
+
+function rename (src, dest, overwrite, cb) {
+  fs.rename(src, dest, err => {
+    if (!err) return cb()
+    if (err.code !== 'EXDEV') return cb(err)
+    return moveAcrossDevice(src, dest, overwrite, cb)
+  })
+}
+
+function moveAcrossDevice (src, dest, overwrite, cb) {
+  const opts = {
+    overwrite,
+    errorOnExist: true
+  }
+  copy(src, dest, opts, err => {
+    if (err) return cb(err)
+    return remove(src, cb)
+  })
+}
+
+module.exports = move

server/libs/fsExtra/path-exists/index.js

@@ -0,0 +1,12 @@
+'use strict'
+const u = require('../../universalify').fromPromise
+const fs = require('../fs')
+
+function pathExists(path) {
+  return fs.access(path).then(() => true).catch(() => false)
+}
+
+module.exports = {
+  pathExists: u(pathExists),
+  pathExistsSync: fs.existsSync
+}

server/libs/fsExtra/remove/index.js

@@ -0,0 +1,22 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const u = require('../../universalify').fromCallback
+const rimraf = require('./rimraf')
+
+function remove(path, callback) {
+  // Node 14.14.0+
+  if (fs.rm) return fs.rm(path, { recursive: true, force: true }, callback)
+  rimraf(path, callback)
+}
+
+function removeSync(path) {
+  // Node 14.14.0+
+  if (fs.rmSync) return fs.rmSync(path, { recursive: true, force: true })
+  rimraf.sync(path)
+}
+
+module.exports = {
+  remove: u(remove),
+  removeSync
+}

server/libs/fsExtra/remove/rimraf.js

@@ -0,0 +1,302 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const assert = require('assert')
+
+const isWindows = (process.platform === 'win32')
+
+function defaults (options) {
+  const methods = [
+    'unlink',
+    'chmod',
+    'stat',
+    'lstat',
+    'rmdir',
+    'readdir'
+  ]
+  methods.forEach(m => {
+    options[m] = options[m] || fs[m]
+    m = m + 'Sync'
+    options[m] = options[m] || fs[m]
+  })
+
+  options.maxBusyTries = options.maxBusyTries || 3
+}
+
+function rimraf (p, options, cb) {
+  let busyTries = 0
+
+  if (typeof options === 'function') {
+    cb = options
+    options = {}
+  }
+
+  assert(p, 'rimraf: missing path')
+  assert.strictEqual(typeof p, 'string', 'rimraf: path should be a string')
+  assert.strictEqual(typeof cb, 'function', 'rimraf: callback function required')
+  assert(options, 'rimraf: invalid options argument provided')
+  assert.strictEqual(typeof options, 'object', 'rimraf: options should be object')
+
+  defaults(options)
+
+  rimraf_(p, options, function CB (er) {
+    if (er) {
+      if ((er.code === 'EBUSY' || er.code === 'ENOTEMPTY' || er.code === 'EPERM') &&
+          busyTries < options.maxBusyTries) {
+        busyTries++
+        const time = busyTries * 100
+        // try again, with the same exact callback as this one.
+        return setTimeout(() => rimraf_(p, options, CB), time)
+      }
+
+      // already gone
+      if (er.code === 'ENOENT') er = null
+    }
+
+    cb(er)
+  })
+}
+
+// Two possible strategies.
+// 1. Assume it's a file.  unlink it, then do the dir stuff on EPERM or EISDIR
+// 2. Assume it's a directory.  readdir, then do the file stuff on ENOTDIR
+//
+// Both result in an extra syscall when you guess wrong.  However, there
+// are likely far more normal files in the world than directories.  This
+// is based on the assumption that a the average number of files per
+// directory is >= 1.
+//
+// If anyone ever complains about this, then I guess the strategy could
+// be made configurable somehow.  But until then, YAGNI.
+function rimraf_ (p, options, cb) {
+  assert(p)
+  assert(options)
+  assert(typeof cb === 'function')
+
+  // sunos lets the root user unlink directories, which is... weird.
+  // so we have to lstat here and make sure it's not a dir.
+  options.lstat(p, (er, st) => {
+    if (er && er.code === 'ENOENT') {
+      return cb(null)
+    }
+
+    // Windows can EPERM on stat.  Life is suffering.
+    if (er && er.code === 'EPERM' && isWindows) {
+      return fixWinEPERM(p, options, er, cb)
+    }
+
+    if (st && st.isDirectory()) {
+      return rmdir(p, options, er, cb)
+    }
+
+    options.unlink(p, er => {
+      if (er) {
+        if (er.code === 'ENOENT') {
+          return cb(null)
+        }
+        if (er.code === 'EPERM') {
+          return (isWindows)
+            ? fixWinEPERM(p, options, er, cb)
+            : rmdir(p, options, er, cb)
+        }
+        if (er.code === 'EISDIR') {
+          return rmdir(p, options, er, cb)
+        }
+      }
+      return cb(er)
+    })
+  })
+}
+
+function fixWinEPERM (p, options, er, cb) {
+  assert(p)
+  assert(options)
+  assert(typeof cb === 'function')
+
+  options.chmod(p, 0o666, er2 => {
+    if (er2) {
+      cb(er2.code === 'ENOENT' ? null : er)
+    } else {
+      options.stat(p, (er3, stats) => {
+        if (er3) {
+          cb(er3.code === 'ENOENT' ? null : er)
+        } else if (stats.isDirectory()) {
+          rmdir(p, options, er, cb)
+        } else {
+          options.unlink(p, cb)
+        }
+      })
+    }
+  })
+}
+
+function fixWinEPERMSync (p, options, er) {
+  let stats
+
+  assert(p)
+  assert(options)
+
+  try {
+    options.chmodSync(p, 0o666)
+  } catch (er2) {
+    if (er2.code === 'ENOENT') {
+      return
+    } else {
+      throw er
+    }
+  }
+
+  try {
+    stats = options.statSync(p)
+  } catch (er3) {
+    if (er3.code === 'ENOENT') {
+      return
+    } else {
+      throw er
+    }
+  }
+
+  if (stats.isDirectory()) {
+    rmdirSync(p, options, er)
+  } else {
+    options.unlinkSync(p)
+  }
+}
+
+function rmdir (p, options, originalEr, cb) {
+  assert(p)
+  assert(options)
+  assert(typeof cb === 'function')
+
+  // try to rmdir first, and only readdir on ENOTEMPTY or EEXIST (SunOS)
+  // if we guessed wrong, and it's not a directory, then
+  // raise the original error.
+  options.rmdir(p, er => {
+    if (er && (er.code === 'ENOTEMPTY' || er.code === 'EEXIST' || er.code === 'EPERM')) {
+      rmkids(p, options, cb)
+    } else if (er && er.code === 'ENOTDIR') {
+      cb(originalEr)
+    } else {
+      cb(er)
+    }
+  })
+}
+
+function rmkids (p, options, cb) {
+  assert(p)
+  assert(options)
+  assert(typeof cb === 'function')
+
+  options.readdir(p, (er, files) => {
+    if (er) return cb(er)
+
+    let n = files.length
+    let errState
+
+    if (n === 0) return options.rmdir(p, cb)
+
+    files.forEach(f => {
+      rimraf(path.join(p, f), options, er => {
+        if (errState) {
+          return
+        }
+        if (er) return cb(errState = er)
+        if (--n === 0) {
+          options.rmdir(p, cb)
+        }
+      })
+    })
+  })
+}
+
+// this looks simpler, and is strictly *faster*, but will
+// tie up the JavaScript thread and fail on excessively
+// deep directory trees.
+function rimrafSync (p, options) {
+  let st
+
+  options = options || {}
+  defaults(options)
+
+  assert(p, 'rimraf: missing path')
+  assert.strictEqual(typeof p, 'string', 'rimraf: path should be a string')
+  assert(options, 'rimraf: missing options')
+  assert.strictEqual(typeof options, 'object', 'rimraf: options should be object')
+
+  try {
+    st = options.lstatSync(p)
+  } catch (er) {
+    if (er.code === 'ENOENT') {
+      return
+    }
+
+    // Windows can EPERM on stat.  Life is suffering.
+    if (er.code === 'EPERM' && isWindows) {
+      fixWinEPERMSync(p, options, er)
+    }
+  }
+
+  try {
+    // sunos lets the root user unlink directories, which is... weird.
+    if (st && st.isDirectory()) {
+      rmdirSync(p, options, null)
+    } else {
+      options.unlinkSync(p)
+    }
+  } catch (er) {
+    if (er.code === 'ENOENT') {
+      return
+    } else if (er.code === 'EPERM') {
+      return isWindows ? fixWinEPERMSync(p, options, er) : rmdirSync(p, options, er)
+    } else if (er.code !== 'EISDIR') {
+      throw er
+    }
+    rmdirSync(p, options, er)
+  }
+}
+
+function rmdirSync (p, options, originalEr) {
+  assert(p)
+  assert(options)
+
+  try {
+    options.rmdirSync(p)
+  } catch (er) {
+    if (er.code === 'ENOTDIR') {
+      throw originalEr
+    } else if (er.code === 'ENOTEMPTY' || er.code === 'EEXIST' || er.code === 'EPERM') {
+      rmkidsSync(p, options)
+    } else if (er.code !== 'ENOENT') {
+      throw er
+    }
+  }
+}
+
+function rmkidsSync (p, options) {
+  assert(p)
+  assert(options)
+  options.readdirSync(p).forEach(f => rimrafSync(path.join(p, f), options))
+
+  if (isWindows) {
+    // We only end up here once we got ENOTEMPTY at least once, and
+    // at this point, we are guaranteed to have removed all the kids.
+    // So, we know that it won't be ENOENT or ENOTDIR or anything else.
+    // try really hard to delete stuff on windows, because it has a
+    // PROFOUNDLY annoying habit of not closing handles promptly when
+    // files are deleted, resulting in spurious ENOTEMPTY errors.
+    const startTime = Date.now()
+    do {
+      try {
+        const ret = options.rmdirSync(p, options)
+        return ret
+      } catch {}
+    } while (Date.now() - startTime < 500) // give up after 500ms
+  } else {
+    const ret = options.rmdirSync(p, options)
+    return ret
+  }
+}
+
+module.exports = rimraf
+rimraf.sync = rimrafSync

server/libs/fsExtra/util/stat.js

@@ -0,0 +1,154 @@
+'use strict'
+
+const fs = require('../fs')
+const path = require('path')
+const util = require('util')
+
+function getStats (src, dest, opts) {
+  const statFunc = opts.dereference
+    ? (file) => fs.stat(file, { bigint: true })
+    : (file) => fs.lstat(file, { bigint: true })
+  return Promise.all([
+    statFunc(src),
+    statFunc(dest).catch(err => {
+      if (err.code === 'ENOENT') return null
+      throw err
+    })
+  ]).then(([srcStat, destStat]) => ({ srcStat, destStat }))
+}
+
+function getStatsSync (src, dest, opts) {
+  let destStat
+  const statFunc = opts.dereference
+    ? (file) => fs.statSync(file, { bigint: true })
+    : (file) => fs.lstatSync(file, { bigint: true })
+  const srcStat = statFunc(src)
+  try {
+    destStat = statFunc(dest)
+  } catch (err) {
+    if (err.code === 'ENOENT') return { srcStat, destStat: null }
+    throw err
+  }
+  return { srcStat, destStat }
+}
+
+function checkPaths (src, dest, funcName, opts, cb) {
+  util.callbackify(getStats)(src, dest, opts, (err, stats) => {
+    if (err) return cb(err)
+    const { srcStat, destStat } = stats
+
+    if (destStat) {
+      if (areIdentical(srcStat, destStat)) {
+        const srcBaseName = path.basename(src)
+        const destBaseName = path.basename(dest)
+        if (funcName === 'move' &&
+          srcBaseName !== destBaseName &&
+          srcBaseName.toLowerCase() === destBaseName.toLowerCase()) {
+          return cb(null, { srcStat, destStat, isChangingCase: true })
+        }
+        return cb(new Error('Source and destination must not be the same.'))
+      }
+      if (srcStat.isDirectory() && !destStat.isDirectory()) {
+        return cb(new Error(`Cannot overwrite non-directory '${dest}' with directory '${src}'.`))
+      }
+      if (!srcStat.isDirectory() && destStat.isDirectory()) {
+        return cb(new Error(`Cannot overwrite directory '${dest}' with non-directory '${src}'.`))
+      }
+    }
+
+    if (srcStat.isDirectory() && isSrcSubdir(src, dest)) {
+      return cb(new Error(errMsg(src, dest, funcName)))
+    }
+    return cb(null, { srcStat, destStat })
+  })
+}
+
+function checkPathsSync (src, dest, funcName, opts) {
+  const { srcStat, destStat } = getStatsSync(src, dest, opts)
+
+  if (destStat) {
+    if (areIdentical(srcStat, destStat)) {
+      const srcBaseName = path.basename(src)
+      const destBaseName = path.basename(dest)
+      if (funcName === 'move' &&
+        srcBaseName !== destBaseName &&
+        srcBaseName.toLowerCase() === destBaseName.toLowerCase()) {
+        return { srcStat, destStat, isChangingCase: true }
+      }
+      throw new Error('Source and destination must not be the same.')
+    }
+    if (srcStat.isDirectory() && !destStat.isDirectory()) {
+      throw new Error(`Cannot overwrite non-directory '${dest}' with directory '${src}'.`)
+    }
+    if (!srcStat.isDirectory() && destStat.isDirectory()) {
+      throw new Error(`Cannot overwrite directory '${dest}' with non-directory '${src}'.`)
+    }
+  }
+
+  if (srcStat.isDirectory() && isSrcSubdir(src, dest)) {
+    throw new Error(errMsg(src, dest, funcName))
+  }
+  return { srcStat, destStat }
+}
+
+// recursively check if dest parent is a subdirectory of src.
+// It works for all file types including symlinks since it
+// checks the src and dest inodes. It starts from the deepest
+// parent and stops once it reaches the src parent or the root path.
+function checkParentPaths (src, srcStat, dest, funcName, cb) {
+  const srcParent = path.resolve(path.dirname(src))
+  const destParent = path.resolve(path.dirname(dest))
+  if (destParent === srcParent || destParent === path.parse(destParent).root) return cb()
+  fs.stat(destParent, { bigint: true }, (err, destStat) => {
+    if (err) {
+      if (err.code === 'ENOENT') return cb()
+      return cb(err)
+    }
+    if (areIdentical(srcStat, destStat)) {
+      return cb(new Error(errMsg(src, dest, funcName)))
+    }
+    return checkParentPaths(src, srcStat, destParent, funcName, cb)
+  })
+}
+
+function checkParentPathsSync (src, srcStat, dest, funcName) {
+  const srcParent = path.resolve(path.dirname(src))
+  const destParent = path.resolve(path.dirname(dest))
+  if (destParent === srcParent || destParent === path.parse(destParent).root) return
+  let destStat
+  try {
+    destStat = fs.statSync(destParent, { bigint: true })
+  } catch (err) {
+    if (err.code === 'ENOENT') return
+    throw err
+  }
+  if (areIdentical(srcStat, destStat)) {
+    throw new Error(errMsg(src, dest, funcName))
+  }
+  return checkParentPathsSync(src, srcStat, destParent, funcName)
+}
+
+function areIdentical (srcStat, destStat) {
+  return destStat.ino && destStat.dev && destStat.ino === srcStat.ino && destStat.dev === srcStat.dev
+}
+
+// return true if dest is a subdir of src, otherwise false.
+// It only checks the path strings.
+function isSrcSubdir (src, dest) {
+  const srcArr = path.resolve(src).split(path.sep).filter(i => i)
+  const destArr = path.resolve(dest).split(path.sep).filter(i => i)
+  return srcArr.reduce((acc, cur, i) => acc && destArr[i] === cur, true)
+}
+
+function errMsg (src, dest, funcName) {
+  return `Cannot ${funcName} '${src}' to a subdirectory of itself, '${dest}'.`
+}
+
+module.exports = {
+  checkPaths,
+  checkPathsSync,
+  checkParentPaths,
+  checkParentPathsSync,
+  isSrcSubdir,
+  areIdentical
+}

server/libs/fsExtra/util/utimes.js

@@ -0,0 +1,26 @@
+'use strict'
+
+const fs = require('graceful-fs')
+
+function utimesMillis (path, atime, mtime, callback) {
+  // if (!HAS_MILLIS_RES) return fs.utimes(path, atime, mtime, callback)
+  fs.open(path, 'r+', (err, fd) => {
+    if (err) return callback(err)
+    fs.futimes(fd, atime, mtime, futimesErr => {
+      fs.close(fd, closeErr => {
+        if (callback) callback(futimesErr || closeErr)
+      })
+    })
+  })
+}
+
+function utimesMillisSync (path, atime, mtime) {
+  const fd = fs.openSync(path, 'r+')
+  fs.futimesSync(fd, atime, mtime)
+  return fs.closeSync(fd)
+}
+
+module.exports = {
+  utimesMillis,
+  utimesMillisSync
+}

server/libs/universalify/LICENSE

@@ -0,0 +1,20 @@
+(The MIT License)
+
+Copyright (c) 2017, Ryan Zimmerman <opensrc@ryanzim.com>
+
+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:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+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.

server/libs/universalify/index.js

@@ -0,0 +1,24 @@
+'use strict'
+
+exports.fromCallback = function (fn) {
+  return Object.defineProperty(function (...args) {
+    if (typeof args[args.length - 1] === 'function') fn.apply(this, args)
+    else {
+      return new Promise((resolve, reject) => {
+        fn.call(
+          this,
+          ...args,
+          (err, res) => (err != null) ? reject(err) : resolve(res)
+        )
+      })
+    }
+  }, 'name', { value: fn.name })
+}
+
+exports.fromPromise = function (fn) {
+  return Object.defineProperty(function (...args) {
+    const cb = args[args.length - 1]
+    if (typeof cb !== 'function') return fn.apply(this, args)
+    else fn.apply(this, args.slice(0, -1)).then(r => cb(null, r), cb)
+  }, 'name', { value: fn.name })
+}

server/managers/AbMergeManager.js

@@ -1,6 +1,6 @@
 
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 
 const workerThreads = require('worker_threads')
 const Logger = require('../Logger')

server/managers/AudioMetadataManager.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const workerThreads = require('worker_threads')
 const Logger = require('../Logger')
 const filePerms = require('../utils/filePerms')
@@ -112,7 +112,7 @@ class AudioMetadataMangaer {
 
         Logger.debug(`[AudioFileMetaDataManager] No cover found for "${audioFile.metadata.filename}". Cover will be skipped or removed from metadata`)
       }
-      
+
       ffmpegOptions.push(...ffmpegCoverPathOptions)
 
       var workerData = {

server/managers/BackupManager.js

@@ -1,7 +1,7 @@
 const Path = require('path')
 
 const cron = require('../libs/nodeCron')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const archiver = require('archiver')
 const StreamZip = require('../libs/nodeStreamZip')
 

server/managers/CacheManager.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const stream = require('stream')
 const filePerms = require('../utils/filePerms')
 const Logger = require('../Logger')

server/managers/CoverManager.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Path = require('path')
 const axios = require('axios')
 const Logger = require('../Logger')

server/managers/DownloadManager.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const archiver = require('archiver')
 
 const workerThreads = require('worker_threads')

server/managers/LogManager.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 
 const DailyLog = require('../objects/DailyLog')
 

server/managers/PlaybackSessionManager.js

@@ -6,7 +6,7 @@ const PlaybackSession = require('../objects/PlaybackSession')
 const DeviceInfo = require('../objects/DeviceInfo')
 const Stream = require('../objects/Stream')
 const Logger = require('../Logger')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 
 const uaParserJs = require('../libs/uaParser')
 const requestIp = require('../libs/requestIp')

server/managers/PodcastManager.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const cron = require('../libs/nodeCron')
 const axios = require('axios')
 

server/managers/RssFeedManager.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Feed = require('../objects/Feed')
 const Logger = require('../Logger')
 

server/objects/DailyLog.js

@@ -1,6 +1,6 @@
 const Path = require('path')
 const date = require('date-and-time')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const { readTextFile } = require('../utils/fileUtils')
 const Logger = require('../Logger')
 

server/objects/LibraryItem.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Path = require('path')
 const { version } = require('../../package.json')
 const Logger = require('../Logger')

server/objects/Stream.js

@@ -1,7 +1,7 @@
 const Ffmpeg = require('fluent-ffmpeg')
 const EventEmitter = require('events')
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Logger = require('../Logger')
 const { secondsToTimestamp } = require('../utils/index')
 const { writeConcatFile } = require('../utils/ffmpegHelpers')

server/routers/ApiRouter.js

@@ -1,6 +1,6 @@
 const express = require('express')
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const date = require('date-and-time')
 const Logger = require('../Logger')
 

server/routers/HlsRouter.js

@@ -1,6 +1,6 @@
 const express = require('express')
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Logger = require('../Logger')
 
 class HlsRouter {

server/scanner/LibraryScan.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const date = require('date-and-time')
 
 const Logger = require('../Logger')

server/scanner/Scanner.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Path = require('path')
 
 // Utils

server/utils/abmetadataGenerator.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const filePerms = require('./filePerms')
 const package = require('../../package.json')
 const Logger = require('../Logger')

server/utils/dbMigration.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const njodb = require('../libs/njodb')
 
 const { SupportedEbookTypes } = require('./globals')

server/utils/ffmpegHelpers.js

@@ -1,5 +1,5 @@
 const Ffmpeg = require('fluent-ffmpeg')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Path = require('path')
 const package = require('../../package.json')
 const Logger = require('../Logger')

server/utils/filePerms.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Path = require('path')
 const Logger = require('../Logger')
 

server/utils/fileUtils.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const rra = require('../libs/recursiveReaddirAsync')
 const axios = require('axios')
 const Path = require('path')

server/utils/hlsPlaylistGenerator.js

@@ -1,4 +1,4 @@
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 
 function getPlaylistStr(segmentName, duration, segmentLength, hlsSegmentType, token) {
   var ext = hlsSegmentType === 'fmp4' ? 'm4s' : 'ts'

server/utils/scandir.js

@@ -1,5 +1,5 @@
 const Path = require('path')
-const fs = require('fs-extra')
+const fs = require('../libs/fsExtra')
 const Logger = require('../Logger')
 const { recurseFiles, getFileTimestampsWithIno } = require('./fileUtils')
 const globals = require('./globals')