remove deprecated features, remove 'compaction.done' event, add oncompaction callback, include 'callbackify' polyfill for the browser and use it instead of the 'util' module moved to devDependencies

browser-version/lib/customUtils.js

@@ -74,3 +74,92 @@ const byteArrayToBase64 = uint8 => {
 const uid = len => byteArrayToBase64(randomBytes(Math.ceil(Math.max(8, len * 2)))).replace(/[+/]/g, '').slice(0, len)
 
 module.exports.uid = uid
+
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+const getOwnPropertyDescriptors = Object.getOwnPropertyDescriptors ||
+  function getOwnPropertyDescriptors (obj) {
+    const keys = Object.keys(obj)
+    const descriptors = {}
+    for (let i = 0; i < keys.length; i++) {
+      descriptors[keys[i]] = Object.getOwnPropertyDescriptor(obj, keys[i])
+    }
+    return descriptors
+  }
+
+function callbackifyOnRejected (reason, cb) {
+  // `!reason` guard inspired by bluebird (Ref: https://goo.gl/t5IS6M).
+  // Because `null` is a special error value in callbacks which means "no error
+  // occurred", we error-wrap so the callback consumer can distinguish between
+  // "the promise rejected with null" or "the promise fulfilled with undefined".
+  if (!reason) {
+    const newReason = new Error('Promise was rejected with a falsy value')
+    newReason.reason = reason
+    reason = newReason
+  }
+  return cb(reason)
+}
+
+/**
+ * Wraps a function with a callback, converting it into a callback-style function.
+ *
+ * Adapted from https://github.com/browserify/node-util, but without its dependency in `process`
+ *
+ * @param {function} original - The original function to be callbackified.
+ * @returns {function} - The callbackified function.
+ * @throws {TypeError} - If the "original" argument is not a function or if the last argument is not a function.
+ */
+function callbackify (original) {
+  if (typeof original !== 'function') {
+    throw new TypeError('The "original" argument must be of type Function')
+  }
+
+  // We DO NOT return the promise as it gives the user a false sense that
+  // the promise is actually somehow related to the callback's execution
+  // and that the callback throwing will reject the promise.
+  function callbackified () {
+    const args = []
+    for (let i = 0; i < arguments.length; i++) {
+      args.push(arguments[i])
+    }
+
+    const maybeCb = args.pop()
+    if (typeof maybeCb !== 'function') {
+      throw new TypeError('The last argument must be of type Function')
+    }
+    const self = this
+    const cb = function () {
+      return maybeCb.apply(self, arguments)
+    }
+    // In true node style we process the callback on `nextTick` with all the
+    // implications (stack, `uncaughtException`, `async_hooks`), done with setTimeout in browser.
+    original.apply(this, args)
+      .then(function (ret) { setTimeout(cb.bind(null, null, ret)) },
+        function (rej) { setTimeout(callbackifyOnRejected.bind(null, rej, cb)) })
+  }
+
+  Object.setPrototypeOf(callbackified, Object.getPrototypeOf(original))
+  Object.defineProperties(callbackified,
+    getOwnPropertyDescriptors(original))
+  return callbackified
+}
+module.exports.callbackify = callbackify

browser-version/lib/storage.react-native.js

@@ -9,7 +9,7 @@
  */
 
 const AsyncStorage = require('@react-native-async-storage/async-storage').default
-const { callbackify } = require('util')
+const { callbackify } = require('./customUtils')
 
 /**
  * Async version of {@link module:storageReactNative.exists}.

lib/cursor.js

@@ -1,5 +1,5 @@
 const model = require('./model.js')
-const { callbackify } = require('util')
+const { callbackify } = require('./customUtils.js')
 
 /**
  * Has a callback

lib/customUtils.js

@@ -5,6 +5,7 @@
  * @private
  */
 const crypto = require('crypto')
+const { callbackify } = require('util')
 
 /**
  * Return a random alphanumerical string of length len
@@ -24,3 +25,5 @@ const uid = len => crypto.randomBytes(Math.ceil(Math.max(8, len * 2)))
 
 // Interface
 module.exports.uid = uid
+
+module.exports.callbackify = callbackify

lib/datastore.js

@@ -1,7 +1,5 @@
-const { EventEmitter } = require('events')
-const { callbackify, deprecate } = require('util')
 const Cursor = require('./cursor.js')
-const customUtils = require('./customUtils.js')
+const { uid, callbackify } = require('./customUtils.js')
 const Executor = require('./executor.js')
 const Index = require('./indexes.js')
 const model = require('./model.js')
@@ -133,19 +131,12 @@ const { isDate, pick, filterIndexNames } = require('./utils.js')
  * @return {string}
  */
 
-/**
- * @external EventEmitter
- * @see http://nodejs.org/api/events.html
- */
-
 /**
  * @class
  * @classdesc The `Datastore` class is the main class of NeDB.
- * @extends external:EventEmitter
- * @emits Datastore#event:"compaction.done"
  * @typicalname NeDB
  */
-class Datastore extends EventEmitter {
+class Datastore {
   /**
    * Create a new collection, either persistent or in-memory.
    *
@@ -157,9 +148,7 @@ class Datastore extends EventEmitter {
    * Also, if loading fails, all commands registered to the {@link Datastore#executor} afterwards will not be executed.
    * They will be registered and executed, in sequence, only after a successful loading.
    *
-   * @param {object|string} options Can be an object or a string. If options is a string, the behavior is the same as in
+   * @param {object} options
-   * v0.6: it will be interpreted as `options.filename`. **Giving a string is deprecated, and will be removed in the
-   * next major version.**
    * @param {string} [options.filename = null] Path to the file where the data is persisted. If left blank, the datastore is
    * automatically considered in-memory only. It cannot end with a `~` which is used in the temporary files NeDB uses to
    * perform crash-safe writes. Not used if `options.inMemoryOnly` is `true`.
@@ -177,6 +166,9 @@ class Datastore extends EventEmitter {
    * @param {NoParamCallback} [options.onload] If you use autoloading, this is the handler called after the `loadDatabase`. It
    * takes one `error` argument. If you use autoloading without specifying this handler, and an error happens during
    * load, an error will be thrown.
+   * @param {NoParamCallback} [options.oncompaction] Callback called when a database compaction operation is finished,
+   * whether it succeeded or failed. If it failed, the first parameter is the Error object that was thrown,
+   * otherwise it is null.
    * @param {serializationHook} [options.beforeDeserialization] Hook you can use to transform data after it was serialized and
    * before it is written to disk. Can be used for example to encrypt data before writing database to disk. This
    * function takes a string as parameter (one line of an NeDB data file) and outputs the transformed string, **which
@@ -197,38 +189,29 @@ class Datastore extends EventEmitter {
    * might be CPU-intensive
    */
   constructor (options) {
-    super()
+    if (options && typeof options !== 'object') throw new Error('\'options\' must be an object')
-    let filename
+    options = options || {}
-
+
-    // Retrocompatibility with v0.6 and before
+    const filename = options.filename
-    if (typeof options === 'string') {
+    /**
-      deprecate(() => {
+     * Determines if the `Datastore` keeps data in-memory, or if it saves it in storage. Is not read after
-        filename = options
+     * instanciation.
-        this.inMemoryOnly = false // Default
+     * @type {boolean}
-      }, '@seald-io/nedb: Giving a string to the Datastore constructor is deprecated and will be removed in the next major version. Please use an options object with an argument \'filename\'.')()
+     * @protected
-    } else {
+     */
-      options = options || {}
+    this.inMemoryOnly = options.inMemoryOnly || false
-      filename = options.filename
+    /**
-      /**
+     * Determines if the `Datastore` should autoload the database upon instantiation. Is not read after instanciation.
-       * Determines if the `Datastore` keeps data in-memory, or if it saves it in storage. Is not read after
+     * @type {boolean}
-       * instanciation.
+     * @protected
-       * @type {boolean}
+     */
-       * @protected
+    this.autoload = options.autoload || false
-       */
+    /**
-      this.inMemoryOnly = options.inMemoryOnly || false
+     * Determines if the `Datastore` should add `createdAt` and `updatedAt` fields automatically if not set by the user.
-      /**
+     * @type {boolean}
-       * Determines if the `Datastore` should autoload the database upon instantiation. Is not read after instanciation.
+     * @protected
-       * @type {boolean}
+     */
-       * @protected
+    this.timestampData = options.timestampData || false
-       */
-      this.autoload = options.autoload || false
-      /**
-       * Determines if the `Datastore` should add `createdAt` and `updatedAt` fields automatically if not set by the user.
-       * @type {boolean}
-       * @protected
-       */
-      this.timestampData = options.timestampData || false
-    }
 
     // Determine whether in memory or persistent
     if (!filename || typeof filename !== 'string' || filename.length === 0) {
@@ -314,6 +297,14 @@ class Datastore extends EventEmitter {
           else throw err
         })
     } else this.autoloadPromise = null
+
+    /**
+     * Callback called when compaction has occurred
+     * @protected
+     * @type {NoParamCallback|null}
+     */
+    this.oncompaction = options.oncompaction || null
+
     /**
      * Interval if {@link Datastore#setAutocompactionInterval} was called.
      * @private
@@ -709,7 +700,7 @@ class Datastore extends EventEmitter {
    * @private
    */
   _createNewId () {
-    let attemptId = customUtils.uid(16)
+    let attemptId = uid(16)
     // Try as many times as needed to get an unused _id. As explained in customUtils, the probability of this ever happening is extremely small, so this is O(1)
     if (this.indexes._id.getMatching(attemptId).length > 0) attemptId = this._createNewId()
     return attemptId

lib/persistence.js

@@ -1,4 +1,3 @@
-const { deprecate } = require('util')
 const byline = require('./byline')
 const customUtils = require('./customUtils.js')
 const Index = require('./indexes.js')
@@ -95,53 +94,32 @@ class Persistence {
    * @private
    */
   async persistCachedDatabaseAsync () {
-    const lines = []
+    try {
-
+      const lines = []
-    if (this.inMemoryOnly) return
-
-    this.db.getAllData().forEach(doc => {
-      lines.push(this.afterSerialization(model.serialize(doc)))
-    })
-    Object.keys(this.db.indexes).forEach(fieldName => {
-      if (fieldName !== '_id') { // The special _id index is managed by datastore.js, the others need to be persisted
-        lines.push(this.afterSerialization(model.serialize({
-          $$indexCreated: {
-            fieldName: this.db.indexes[fieldName].fieldName,
-            unique: this.db.indexes[fieldName].unique,
-            sparse: this.db.indexes[fieldName].sparse
-          }
-        })))
-      }
-    })
-
-    await storage.crashSafeWriteFileLinesAsync(this.filename, lines, this.modes)
-    this.db.emit('compaction.done')
-  }
 
-  /**
+      if (this.inMemoryOnly) return
-   * @see Datastore#compactDatafile
-   * @deprecated
-   * @param {NoParamCallback} [callback = () => {}]
-   * @see Persistence#compactDatafileAsync
-   */
-  compactDatafile (callback) {
-    deprecate(_callback => this.db.compactDatafile(_callback), '@seald-io/nedb: calling Datastore#persistence#compactDatafile is deprecated, please use Datastore#compactDatafile, it will be removed in the next major version.')(callback)
-  }
 
-  /**
+      this.db.getAllData().forEach(doc => {
-   * @see Datastore#setAutocompactionInterval
+        lines.push(this.afterSerialization(model.serialize(doc)))
-   * @deprecated
+      })
-   */
+      Object.keys(this.db.indexes).forEach(fieldName => {
-  setAutocompactionInterval (interval) {
+        if (fieldName !== '_id') { // The special _id index is managed by datastore.js, the others need to be persisted
-    deprecate(_interval => this.db.setAutocompactionInterval(_interval), '@seald-io/nedb: calling Datastore#persistence#setAutocompactionInterval is deprecated, please use Datastore#setAutocompactionInterval, it will be removed in the next major version.')(interval)
+          lines.push(this.afterSerialization(model.serialize({
-  }
+            $$indexCreated: {
+              fieldName: this.db.indexes[fieldName].fieldName,
+              unique: this.db.indexes[fieldName].unique,
+              sparse: this.db.indexes[fieldName].sparse
+            }
+          })))
+        }
+      })
 
-  /**
+      await storage.crashSafeWriteFileLinesAsync(this.filename, lines, this.modes)
-   * @see Datastore#stopAutocompaction
+      if (typeof this.db.oncompaction === 'function') this.db.oncompaction(null)
-   * @deprecated
+    } catch (error) {
-   */
+      if (typeof this.db.oncompaction === 'function') this.db.oncompaction(error)
-  stopAutocompaction () {
+      throw error
-    deprecate(() => this.db.stopAutocompaction(), '@seald-io/nedb: calling Datastore#persistence#stopAutocompaction is deprecated, please use Datastore#stopAutocompaction, it will be removed in the next major version.')()
+    }
   }
 
   /**

package-lock.json

@@ -10,8 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "@seald-io/binary-search-tree": "^1.0.3",
-        "localforage": "^1.9.0",
+        "localforage": "^1.9.0"
-        "util": "^0.12.4"
       },
       "devDependencies": {
         "@react-native-async-storage/async-storage": "^1.17.11",
@@ -41,6 +40,7 @@
         "timers-browserify": "^2.0.12",
         "ts-jest": "^27.1.5",
         "typescript": "^4.9.5",
+        "util": "^0.12.5",
         "webpack": "^5.75.0",
         "webpack-cli": "^5.0.1",
         "xvfb-maybe": "^0.2.1"
@@ -4700,6 +4700,7 @@
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/available-typed-arrays/-/available-typed-arrays-1.0.5.tgz",
       "integrity": "sha512-DMD0KiN46eipeziST1LPP/STfDU0sufISXmjSgvVsoU2tqxctQeASejWcfNtxYKqETM1UxQ8sp2OrSBWpHY6sw==",
+      "dev": true,
       "engines": {
         "node": ">= 0.4"
       },
@@ -5217,6 +5218,7 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
       "integrity": "sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==",
+      "dev": true,
       "dependencies": {
         "function-bind": "^1.1.1",
         "get-intrinsic": "^1.0.2"
@@ -7943,6 +7945,7 @@
       "version": "0.3.3",
       "resolved": "https://registry.npmjs.org/for-each/-/for-each-0.3.3.tgz",
       "integrity": "sha512-jqYfLp7mo9vIyQf8ykW2v7A+2N4QjeCeI5+Dz9XraiO1ign81wjiH7Fb9vSOWvQfNtmSa4H2RoQTrrXivdUZmw==",
+      "dev": true,
       "dependencies": {
         "is-callable": "^1.1.3"
       }
@@ -8037,7 +8040,8 @@
     "node_modules/function-bind": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
-      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==",
+      "dev": true
     },
     "node_modules/function.prototype.name": {
       "version": "1.1.5",
@@ -8097,6 +8101,7 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.0.tgz",
       "integrity": "sha512-L049y6nFOuom5wGyRc3/gdTLO94dySVKRACj1RmJZBQXlbTMhtNIgkWkUHq+jYmZvKf14EW1EoJnnjbmoHij0Q==",
+      "dev": true,
       "dependencies": {
         "function-bind": "^1.1.1",
         "has": "^1.0.3",
@@ -8230,6 +8235,7 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.0.1.tgz",
       "integrity": "sha512-d65bNlIadxvpb/A2abVdlqKqV563juRnZ1Wtk6s1sIR8uNsXR70xqIzVqxVf1eTqDunwT2MkczEeaezCKTZhwA==",
+      "dev": true,
       "dependencies": {
         "get-intrinsic": "^1.1.3"
       },
@@ -8274,6 +8280,7 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
       "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "dev": true,
       "dependencies": {
         "function-bind": "^1.1.1"
       },
@@ -8327,6 +8334,7 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.3.tgz",
       "integrity": "sha512-l3LCuF6MgDNwTDKkdYGEihYjt5pRPbEg46rtlmnSPlUbgmB8LOIrKJbYYFBSbnPaJexMKtiPO8hmeRjRz2Td+A==",
+      "dev": true,
       "engines": {
         "node": ">= 0.4"
       },
@@ -8338,6 +8346,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.0.tgz",
       "integrity": "sha512-kFjcSNhnlGV1kyoGk7OXKSawH5JOb/LzUc5w9B02hOTO0dfFRjbHQKvg1d6cf3HbeUmtU9VbbV3qzZ2Teh97WQ==",
+      "dev": true,
       "dependencies": {
         "has-symbols": "^1.0.2"
       },
@@ -8670,7 +8679,8 @@
     "node_modules/inherits": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
-      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+      "dev": true
     },
     "node_modules/internal-slot": {
       "version": "1.0.4",
@@ -8726,6 +8736,7 @@
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/is-arguments/-/is-arguments-1.1.1.tgz",
       "integrity": "sha512-8Q7EARjzEnKpt/PCD7e1cgUS0a6X8u5tdSiMqXhojOdoV9TsMsiO+9VLC5vAmO8N7/GmXn7yjR8qnA6bVAEzfA==",
+      "dev": true,
       "dependencies": {
         "call-bind": "^1.0.2",
         "has-tostringtag": "^1.0.0"
@@ -8807,6 +8818,7 @@
       "version": "1.2.7",
       "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.2.7.tgz",
       "integrity": "sha512-1BC0BVFhS/p0qtw6enp8e+8OD0UrK0oFLztSjNzhcKA3WDuJxxAPXzPuPtKkjEY9UUoEWlX/8fgKeu2S8i9JTA==",
+      "dev": true,
       "engines": {
         "node": ">= 0.4"
       },
@@ -8919,6 +8931,7 @@
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/is-generator-function/-/is-generator-function-1.0.10.tgz",
       "integrity": "sha512-jsEjy9l3yiXEQ+PsXdmBwEPcOxaXWLspKdplFUVI9vq1iZgIekeC0L167qeu86czQaxed3q/Uzuw0swL0irL8A==",
+      "dev": true,
       "dependencies": {
         "has-tostringtag": "^1.0.0"
       },
@@ -9096,6 +9109,7 @@
       "version": "1.1.10",
       "resolved": "https://registry.npmjs.org/is-typed-array/-/is-typed-array-1.1.10.tgz",
       "integrity": "sha512-PJqgEHiWZvMpaFZ3uTc8kHPM4+4ADTlDniuQL7cU/UDA0Ql7F70yGfHph3cLNe+c9toaigv+DFzTJKhc2CtO6A==",
+      "dev": true,
       "dependencies": {
         "available-typed-arrays": "^1.0.5",
         "call-bind": "^1.0.2",
@@ -15707,6 +15721,7 @@
       "version": "0.12.5",
       "resolved": "https://registry.npmjs.org/util/-/util-0.12.5.tgz",
       "integrity": "sha512-kZf/K6hEIrWHI6XqOFUiiMa+79wE/D8Q+NCNAWclkyg3b4d2k7s0QGepNjiABc+aR3N1PAyHL7p6UcLY6LmrnA==",
+      "dev": true,
       "dependencies": {
         "inherits": "^2.0.3",
         "is-arguments": "^1.0.4",
@@ -16075,6 +16090,7 @@
       "version": "1.1.9",
       "resolved": "https://registry.npmjs.org/which-typed-array/-/which-typed-array-1.1.9.tgz",
       "integrity": "sha512-w9c4xkx6mPidwp7180ckYWfMmvxpjlZuIudNtDf4N/tTAUB8VJbX25qZoAsrtGuYNnGw3pa0AXgbGKRB8/EceA==",
+      "dev": true,
       "dependencies": {
         "available-typed-arrays": "^1.0.5",
         "call-bind": "^1.0.2",

package.json

@@ -46,8 +46,7 @@
   },
   "dependencies": {
     "@seald-io/binary-search-tree": "^1.0.3",
-    "localforage": "^1.9.0",
+    "localforage": "^1.9.0"
-    "util": "^0.12.4"
   },
   "devDependencies": {
     "@react-native-async-storage/async-storage": "^1.17.11",
@@ -77,6 +76,7 @@
     "timers-browserify": "^2.0.12",
     "ts-jest": "^27.1.5",
     "typescript": "^4.9.5",
+    "util": "^0.12.5",
     "webpack": "^5.75.0",
     "webpack-cli": "^5.0.1",
     "xvfb-maybe": "^0.2.1"
@@ -84,7 +84,7 @@
   "scripts": {
     "lint": "standard",
     "test": "mocha --reporter spec --timeout 10000",
-    "build:browser": "webpack && webpack --optimization-minimize",
+    "build:browser": "webpack --config-name Nedb && webpack --config-name Nedb --env minimize && webpack --config-name testUtils --env minimize",
     "pretest:browser": "npm run build:browser",
     "test:browser": "xvfb-maybe karma start karma.conf.local.js",
     "test:react-native": "jest test/react-native",

test/db.async.test.js

@@ -22,20 +22,6 @@ describe('Database async', function () {
     assert.equal(d.getAllData().length, 0)
   })
 
-  it('Constructor compatibility with v0.6-', () => {
-    const db1 = new Datastore('somefile')
-    assert.equal(db1.filename, 'somefile')
-    assert.equal(db1.inMemoryOnly, false)
-
-    const db2 = new Datastore('')
-    assert.equal(db2.filename, null)
-    assert.equal(db2.inMemoryOnly, true)
-
-    const db3 = new Datastore()
-    assert.equal(db3.filename, null)
-    assert.equal(db3.inMemoryOnly, true)
-  })
-
   describe('Autoloading', () => {
     it('Can autoload a database and query it right away', async () => {
       const fileStr = model.serialize({

test/db.test.js

@@ -40,20 +40,6 @@ describe('Database', function () {
     ], done)
   })
 
-  it('Constructor compatibility with v0.6-', function () {
-    let dbef = new Datastore('somefile')
-    dbef.filename.should.equal('somefile')
-    dbef.inMemoryOnly.should.equal(false)
-
-    dbef = new Datastore('')
-    assert.isNull(dbef.filename)
-    dbef.inMemoryOnly.should.equal(true)
-
-    dbef = new Datastore()
-    assert.isNull(dbef.filename)
-    dbef.inMemoryOnly.should.equal(true)
-  })
-
   describe('Autoloading', function () {
     it('Can autoload a database and query it right away', function (done) {
       const fileStr = model.serialize({ _id: '1', a: 5, planet: 'Earth' }) + '\n' + model.serialize({
@@ -617,7 +603,7 @@ describe('Database', function () {
                   assert.isNull(err)
                   assert.isNull(doc)
 
-                  d.on('compaction.done', function () {
+                  d.oncompaction = function () {
                     // After compaction, no more mention of the document, correctly removed
                     const datafileContents = fs.readFileSync(testDb, 'utf8')
                     datafileContents.split('\n').length.should.equal(2)
@@ -631,7 +617,7 @@ describe('Database', function () {
 
                       done()
                     })
-                  })
+                  }
 
                   d.compactDatafile()
                 })

test/persistence.async.test.js

@@ -367,12 +367,16 @@ describe('Persistence async', function () {
     })
   })
 
-  it('Can listen to compaction events', async () => {
+  it('Can use compaction callback', async () => {
-    const compacted = new Promise(resolve => {
+    let resolve, reject
-      d.once('compaction.done', function () {
+    const compacted = new Promise((_resolve, _reject) => {
-        resolve()
+      resolve = _resolve
-      })
+      reject = _reject
     })
+    d.oncompaction = err => {
+      if (err) reject(err)
+      else resolve(null)
+    }
     await d.compactDatafileAsync()
     await compacted // should already be resolved when the function returns, but still awaiting for it
   })

test/persistence.test.js

@@ -453,10 +453,10 @@ describe('Persistence', function () {
   })
 
   it('Can listen to compaction events', function (done) {
-    d.on('compaction.done', function () {
+    d.oncompaction = function () {
-      d.removeAllListeners('compaction.done') // Tidy up for next tests
+      d.oncompaction = null // Tidy up for next tests
       done()
-    })
+    }
 
     d.compactDatafile()
   })

webpack.config.js

@@ -4,42 +4,16 @@ const path = require('path')
 const webpack = require('webpack')
 
 module.exports = (env, argv) => {
-  const minimize = argv.optimizationMinimize || false
+  const minimize = argv.env.minimize || false
-  return {
+
+  const baseConfig = {
     mode: 'production',
     cache: false,
     watch: false,
     target: 'web',
-    node: {
-      global: true
-    },
     optimization: {
       minimize
     },
-    resolve: {
-      fallback: {
-        fs: false,
-        path: require.resolve('path-browserify'),
-        events: require.resolve('events/'),
-        crypto: false
-      }
-    },
-    plugins: [
-      new webpack.NormalModuleReplacementPlugin(new RegExp(path.resolve(__dirname, 'lib/storage.js')), path.resolve(__dirname, 'browser-version/lib/storage.browser.js')),
-      new webpack.NormalModuleReplacementPlugin(new RegExp(path.resolve(__dirname, 'lib/customUtils.js')), path.resolve(__dirname, 'browser-version/lib/customUtils.js')),
-      new webpack.NormalModuleReplacementPlugin(/byline/, path.resolve(__dirname, 'browser-version/lib/byline.js')),
-      new webpack.ProvidePlugin({
-        process: 'process/browser',
-        Buffer: ['buffer', 'Buffer'],
-        setImmediate: ['timers-browserify', 'setImmediate'],
-        clearImmediate: ['timers-browserify', 'clearImmediate'],
-        util: 'util'
-      })
-    ],
-    entry: {
-      Nedb: path.join(__dirname, 'lib', 'datastore.js'),
-      testUtils: path.join(__dirname, 'test', 'utils.test.js')
-    },
     output: {
       path: path.join(__dirname, 'browser-version/out'),
       filename: pathData => `${pathData.chunk.name.toLowerCase()}${minimize ? '.min' : ''}.js`,
@@ -47,4 +21,46 @@ module.exports = (env, argv) => {
       library: '[name]'
     }
   }
+
+  const pluginsNedb = [
+    new webpack.NormalModuleReplacementPlugin(new RegExp(path.resolve(__dirname, 'lib/storage.js')), path.resolve(__dirname, 'browser-version/lib/storage.browser.js')),
+    new webpack.NormalModuleReplacementPlugin(new RegExp(path.resolve(__dirname, 'lib/customUtils.js')), path.resolve(__dirname, 'browser-version/lib/customUtils.js')),
+    new webpack.NormalModuleReplacementPlugin(/byline/, path.resolve(__dirname, 'browser-version/lib/byline.js'))
+  ]
+
+  const polyfillPlugins = [
+    new webpack.ProvidePlugin({
+      process: 'process/browser',
+      Buffer: ['buffer', 'Buffer'],
+      setImmediate: ['timers-browserify', 'setImmediate'],
+      clearImmediate: ['timers-browserify', 'clearImmediate']
+    })
+  ]
+
+  return [
+    {
+      ...baseConfig,
+      name: 'Nedb',
+      plugins: pluginsNedb,
+      entry: {
+        Nedb: path.join(__dirname, 'lib', 'datastore.js')
+      }
+    },
+    {
+      ...baseConfig,
+      name: 'testUtils',
+      plugins: polyfillPlugins,
+      resolve: {
+        fallback: {
+          fs: false,
+          path: require.resolve('path-browserify'),
+          util: require.resolve('util/'),
+          crypto: false
+        }
+      },
+      entry: {
+        testUtils: path.join(__dirname, 'test', 'utils.test.js')
+      }
+    }
+  ]
 }