Replace lodash.assign() with ES2016 object spread.

src/api.js

@@ -1,7 +1,6 @@
 import createDebug from 'debug'
 const debug = createDebug('xo:api')
 
-import assign from 'lodash.assign'
 import getKeys from 'lodash.keys'
 import isFunction from 'lodash.isfunction'
 import kindOf from 'kindof'
@@ -114,11 +113,11 @@ function getMethodsInfo () {
   const methods = {}
 
   forEach(this.api._methods, function (method, name) {
-    this[name] = assign({}, {
+    this[name] = {
       description: method.description,
       params: method.params || {},
       permission: method.permission
-    })
+    }
   }, methods)
 
   return methods
@@ -149,11 +148,12 @@ function methodSignature ({method: name}) {
   // Return an array for compatibility with XML-RPC.
   return [
     // XML-RPC require the name of the method.
-    assign({ name }, {
+    {
+      name,
       description: method.description,
       params: method.params || {},
       permission: method.permission
-    })
+    }
   ]
 }
 methodSignature.description = 'returns the signature of an API method'

src/index.js

@@ -2,7 +2,6 @@ import createLogger from 'debug'
 const debug = createLogger('xo:main')
 
 import appConf from 'app-conf'
-import assign from 'lodash.assign'
 import bind from 'lodash.bind'
 import blocked from 'blocked'
 import createExpress from 'express'
@@ -394,8 +393,7 @@ const apiHelpers = {
 }
 
 const setUpApi = (webSocketServer, xo) => {
-  const context = Object.create(xo)
-  assign(xo, apiHelpers)
+  const context = { __proto__: xo, ...apiHelpers }
 
   const api = new Api({
     context

src/job-executor.js

@@ -51,7 +51,7 @@ export default class JobExecutor {
     const connection = this.xo.createUserConnection()
     connection.set('user_id', userId)
     forEach(paramsFlatVector, params => {
-      this.api.call(connection, method, assign({}, params))
+      this.api.call(connection, method, { ...params })
     })
     connection.close()
   }

src/model.js

@@ -1,4 +1,3 @@
-import assign from 'lodash.assign'
 import {EventEmitter} from 'events'
 
 import {
@@ -12,7 +11,7 @@ export default class Model extends EventEmitter {
   constructor (properties) {
     super()
 
-    this.properties = assign({}, this.default)
+    this.properties = { ...this.default }
 
     if (properties) {
       this.set(properties)

src/models/plugin-metadata.js

@@ -1,5 +1,3 @@
-import assign from 'lodash.assign'
-
 import Collection from '../collection/redis'
 import Model from '../model'
 import { forEach } from '../utils'
@@ -33,9 +31,10 @@ export class PluginsMetadata extends Collection {
       throw new Error('no such plugin metadata')
     }
 
-    const {properties} = pluginMetadata
-    assign(properties, data)
-    return await this.save(properties)
+    return await this.save({
+      ...pluginMetadata.properties,
+      ...data
+    })
   }
 
   async get (properties) {

src/ws-proxy.js

@@ -1,4 +1,3 @@
-import assign from 'lodash.assign'
 import createDebug from 'debug'
 import WebSocket from 'ws'
 
@@ -12,9 +11,11 @@ const defaults = {
 // Proxy a WebSocket `client` to a remote server which has `url` as
 // address.
 export default function wsProxy (client, url, opts) {
-  opts = assign({}, defaults, {
-    protocol: client.protocol
-  }, opts)
+  opts = {
+    ...defaults,
+    protocol: client.protocol,
+    ...opts
+  }
   const autoClose = !!opts.autoClose
   delete opts.autoClose
 

src/xapi.js

@@ -1,4 +1,3 @@
-import assign from 'lodash.assign'
 import createDebug from 'debug'
 import d3TimeFormat from 'd3-time-format'
 import escapeStringRegexp from 'escape-string-regexp'
@@ -648,7 +647,7 @@ export default class Xapi extends XapiBase {
           }
 
           this._setObjectProperties(vm, {
-            HVM_boot_params: assign({}, bootParams, { order })
+            HVM_boot_params: { ...bootParams, order }
           })
         }
       } else { // PV

src/xo.js

@@ -1,5 +1,4 @@
 // import XoView from 'xo-collection/view'
-import assign from 'lodash.assign'
 import createJsonSchemaValidator from 'is-my-json-valid'
 import endsWith from 'lodash.endswith'
 import escapeStringRegexp from 'escape-string-regexp'
@@ -645,7 +644,7 @@ export default class Xo extends EventEmitter {
   // -----------------------------------------------------------------
 
   _developRemote (remote) {
-    const _remote = assign({}, remote)
+    const _remote = { ...remote }
     if (startsWith(_remote.url, 'file://')) {
       _remote.type = 'local'
       _remote.path = _remote.url.slice(6)