chore(xo-server): delete unused workers mixin (#5654)

Due to 0811da9014

packages/xo-server/config.toml

@@ -139,12 +139,6 @@ timeout = 600e3
 # see https:#github.com/vatesfr/xen-orchestra/issues/3419
 # useSudo = false
 
-
-# https://github.com/facebook/jest/blob/master/packages/jest-worker/README.md#options-object-optional
-#
-#[workerOptions]
-#numWorkers = 2
-
 [selfService]
 
 # If true, a snapshot of a Self Service VM will consume as much resources as a

packages/xo-server/package.json

@@ -87,7 +87,6 @@
     "human-format": "^0.11.0",
     "is-redirect": "^1.0.0",
     "iterable-backoff": "^0.1.0",
-    "jest-worker": "^26.3.0",
     "js-yaml": "^3.10.0",
     "json-rpc-peer": "^0.17.0",
     "json-stringify-safe": "^5.0.1",

packages/xo-server/src/xo-mixins/workers/index.js

@@ -1,16 +0,0 @@
-import Worker from 'jest-worker'
-
-export default class Workers {
-  get worker() {
-    return this._worker
-  }
-
-  constructor(app, config) {
-    app.on('start', () => {
-      process.env.XO_CONFIG = JSON.stringify(config)
-
-      this._worker = new Worker(require.resolve('./worker'), config.workerOptions)
-    })
-    app.on('stop', () => this._worker.end())
-  }
-}

packages/xo-server/src/xo-mixins/workers/worker.js

@@ -1,33 +0,0 @@
-// @flow
-
-import defer from 'golike-defer'
-import { type Remote, getHandler } from '@xen-orchestra/fs'
-import { mergeVhd as mergeVhd_ } from 'vhd-lib'
-
-// Use Bluebird for all promises as it provides better performance and
-// less memory usage.
-//
-// $FlowFixMe
-global.Promise = require('bluebird')
-
-// $FlowFixMe
-const config: Object = JSON.parse(process.env.XO_CONFIG)
-
-export const mergeVhd = defer(async function (
-  $defer: any,
-  parentRemote: Remote,
-  parentPath: string,
-  childRemote: Remote,
-  childPath: string
-) {
-  const parentHandler = getHandler(parentRemote, config.remoteOptions)
-  const childHandler = getHandler(childRemote, config.remoteOptions)
-
-  await parentHandler.sync()
-  $defer.call(parentHandler, 'forget')
-
-  await childHandler.sync()
-  $defer.call(childHandler, 'forget')
-
-  return mergeVhd_(parentHandler, parentPath, childHandler, childPath)
-})

yarn.lock

@@ -11152,7 +11152,7 @@ jest-worker@^24.6.0, jest-worker@^24.9.0:
     merge-stream "^2.0.0"
     supports-color "^6.1.0"
 
-jest-worker@^26.3.0, jest-worker@^26.6.2:
+jest-worker@^26.6.2:
   version "26.6.2"
   resolved "https://registry.yarnpkg.com/jest-worker/-/jest-worker-26.6.2.tgz#7f72cbc4d643c365e27b9fd775f9d0eaa9c7a8ed"
   integrity sha512-KWYVV1c4i+jbMpaBC+U++4Va0cp8OisU185o73T1vo99hqi7w8tSJfUXYswwqqrjzwxa6KpRK54WhPvwf5w6PQ==