feat(@xen-orchestra/fs): impement null writer for performance testing

@xen-orchestra/fs/src/index.js

@@ -3,6 +3,7 @@ import { parse } from 'xo-remote-parser'
 
 import RemoteHandlerLocal from './local'
 import RemoteHandlerNfs from './nfs'
+import RemoteHandlerNull from './null'
 import RemoteHandlerS3 from './s3'
 import RemoteHandlerSmb from './smb'
 export { DEFAULT_ENCRYPTION_ALGORITHM, UNENCRYPTED_ALGORITHM, isLegacyEncryptionAlgorithm } from './_encryptor'
@@ -10,6 +11,7 @@ export { DEFAULT_ENCRYPTION_ALGORITHM, UNENCRYPTED_ALGORITHM, isLegacyEncryption
 const HANDLERS = {
   file: RemoteHandlerLocal,
   nfs: RemoteHandlerNfs,
+  null: RemoteHandlerNull,
   s3: RemoteHandlerS3,
 }
 

@xen-orchestra/fs/src/null.js

@@ -0,0 +1,14 @@
+import LocalHandler from './local'
+
+export default class NullHandler extends LocalHandler {
+  get type() {
+    return 'null'
+  }
+  _outputStream() {}
+  _writeFile(file, data, options) {
+    if (file.indexOf('xo-vm-backups') === -1) {
+      // metadata, remote tests
+      return super._writeFile(file, data, options)
+    }
+  }
+}

packages/xo-remote-parser/src/index.js

@@ -38,8 +38,8 @@ const makeOptionList = options => {
 export const parse = string => {
   let object = {}
   let [type, rest] = string.split('://')
-  if (type === 'file') {
-    object.type = 'file'
+  if (type === 'file' || type === 'null') {
+    object.type = type
     let optionList
     ;[rest, optionList] = rest.split('?')
     object.path = `/${trimStart(rest, '/')}` // the leading slash has been forgotten on client side first implementation