WIP Make GitPromptServer work on Windows (fix test)

Author: kuychaco

lib/git-prompt-server.js

@@ -1,6 +1,7 @@
 /** @babel */
 import net from 'net'
 import path from 'path'
+import os from 'os'
 
 import Prompt from './views/prompt'
 import {deleteFolder, getTempDir} from './helpers'
@@ -37,12 +38,13 @@ function getInputViaPrompt (query) {
 export default class GitPromptServer {
   async start (promptForInput = getInputViaPrompt) {
     // TODO: [mkt] Windows?? yes.
-    const windows = process.platform === 'win32'
     this.promptForInput = promptForInput
-    this.tmpFolderPath = await getTempDir(windows ? 'C:\Windows\Temp' : '/tmp/github-git-prompt-server-')
+    const windows = process.platform === 'win32'
+    const prefix = windows ? os.tmpdir() : '/tmp'
+    this.tmpFolderPath = await getTempDir(path.join(prefix, 'github'))
     const socketPath = path.join(this.tmpFolderPath, 'helper.sock')
     const namedPipePath = path.join('\\\\?\\pipe\\', 'gh-' + require("crypto").randomBytes(8).toString('hex'), 'helper.sock')
-    this.server = await this.startListening(socketPath)
+    this.server = await this.startListening(windows ? namedPipePath : socketPath)
 
     return {
       socket: windows ? namedPipePath : socketPath,