One true development environment fails when directory has spaces in it

Describe the bug
Issue occurs when attempting to run tools/setup.py in a directory that has spaces in it.

Directory is as follows: /Users/jessewang/Documents/Personal Code/popcode
Example Stacktrace:

tools/setup.py
 * Install prebuilt node (10.16.2) ..... done.
bash: line 1: /Users/jessewang/Documents/Personal: No such file or directory
bash: line 1: /Users/jessewang/Documents/Personal: No such file or directory
/Users/jessewang/.nvm/versions/node/v8.12.0/bin/yarn -> /Users/jessewang/.nvm/versions/node/v8.12.0/lib/node_modules/yarn/bin/yarn.js
/Users/jessewang/.nvm/versions/node/v8.12.0/bin/yarnpkg -> /Users/jessewang/.nvm/versions/node/v8.12.0/lib/node_modules/yarn/bin/yarn.js
+ yarn@1.17.3
added 1 package in 0.315s
bash: line 1: /Users/jessewang/Documents/Personal: No such file or directory
error popcode@0.9.0: The engine "node" is incompatible with this module. Expected version "~10.16.2". Got "8.12.0"
error Found incompatible module.

To Reproduce

1. Store the popcode repo in a folder that has spaces in it.
2. Run tools/setup.py

Expected behavior
tools/setup.py successfully runs and sets the node environment to the correct version.

• OS: iOS
• Version: Current master branch

tools/setup.py から始め、スペースを含むパスに popcode リポジトリを置いてから setup コマンドを実行し、失敗を再現します。スクリプトが bash をどのように呼び出し、ビルド済みの Node バージョンをどのように設定するかを確認します。そのパスから setup が完了し、期待どおり Node 10.16.2 が選択されれば完了です。