chore(xo-server/decorateWith): use fn wrappers as method decorator

packages/xo-server/src/_decorateWith.js

@@ -0,0 +1,14 @@
+// Creates a decorator from a function wrapper.
+//
+// For instance, allows using Lodash's functions as decorators:
+//
+// ```js
+// @decorateWith(lodash.debounce, 150)
+// myMethod() {
+//   // body
+// }
+// ```
+export const decorateWith = (fn, ...args) => (target, name, descriptor) => ({
+  ...descriptor,
+  value: fn(descriptor.value, ...args),
+})

packages/xo-server/src/_pDebounceWithKey.js

@@ -52,8 +52,3 @@ export const debounceWithKey = (fn, delay, keyFn = defaultKeyFn) => {
     return promise
   }
 }
-
-debounceWithKey.decorate = (...params) => (target, name, descriptor) => ({
-  ...descriptor,
-  value: debounceWithKey(descriptor.value, ...params),
-})

packages/xo-server/src/xapi/mixins/patching.js

@@ -5,6 +5,7 @@ import { filter, find, pickBy, some } from 'lodash'
 
 import ensureArray from '../../_ensureArray'
 import { debounceWithKey } from '../../_pDebounceWithKey'
+import { decorateWith } from '../../_decorateWith'
 import { forEach, mapFilter, mapToArray, parseXml } from '../../utils'
 
 import { extractOpaqueRef, useUpdateSystem } from '../utils'
@@ -55,7 +56,7 @@ const listMissingPatches = debounceWithKey(
 export default {
   // raw { uuid: patch } map translated from updates.xensource.com/XenServer/updates.xml
   // FIXME: should be static
-  @debounceWithKey.decorate(24 * 60 * 60 * 1000, function() {
+  @decorateWith(debounceWithKey, 24 * 60 * 60 * 1000, function() {
     return this
   })
   async _getXenUpdates() {