如何在每个项目的基础上使用SystemRuby而不是rbenv？

我正在使用我的工作笔记本电脑为一个非工作开源项目做贡献。在工作中，我们使用rbenv来管理Ruby版本，但开源项目似乎希望gem依赖项位于systemruby安装文件夹中。因此，当我尝试运行项目的某些命令时，我遇到了丢失的gem错误

该项目是自制的，我正在运行的命令是

brew样式

。当我在本地运行该命令时，会得到以下结果：

Ignoring rainbow-2.2.2 because its extensions are not built.  Try: gem pristine rainbow --version 2.2.2
/usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.3.3/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- rainbow (LoadError)
from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.3.3/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /Users/richie.thomas/.gem/ruby/2.3.0/gems/rubocop-0.50.0/lib/rubocop.rb:4:in `<top (required)>'
from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.3.3/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.3.3/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /Users/richie.thomas/.gem/ruby/2.3.0/gems/rubocop-0.50.0/bin/rubocop:6:in `<top (required)>'
from /Users/richie.thomas/.gem/ruby/2.3.0/bin/rubocop:22:in `load'
from /Users/richie.thomas/.gem/ruby/2.3.0/bin/rubocop:22:in `<main>'

RubyGems Environment:
  - RUBYGEMS VERSION: 2.6.10
  - RUBY VERSION: 2.3.3 (2016-11-21 patchlevel 222) [x86_64-darwin15]
  - INSTALLATION DIRECTORY: /Users/richie.thomas/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0
  - USER INSTALLATION DIRECTORY: /Users/richie.thomas/.gem/ruby/2.3.0
  - RUBY EXECUTABLE: /Users/richie.thomas/.rbenv/versions/2.3.3/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/richie.thomas/.rbenv/versions/2.3.3/bin
  - SPEC CACHE DIRECTORY: /Users/richie.thomas/.gem/specs
....

其他贡献者告诉我，最简单的方法是禁用或卸载rbenv以运行该命令。我真的希望避免每次运行这个命令时都卸载和重新安装rbenv，但是在中没有提到这一点

---

是否有任何一次性命令可以运行，或任何配置设置可以更改，以便执行需要执行的操作？

我重新运行了

gem-environment

，并注意到定义了以下环境变量：

INSTALLATION DIRECTORY: /Users/richie.thomas/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0
USER INSTALLATION DIRECTORY: /Users/richie.thomas/.gem/ruby/2.3.0

INSTALLATION DIRECTORY

的值是我希望用来运行命令的值，我注意到

USER INSTALLATION DIRECTORY

的值是错误跟踪中显示的值

由于我无法弄清楚我的机器是如何决定使用哪个变量的，我只是将

~/.gem/

重命名为

~/.gem2/

，然后重新运行我最初想要的

brew样式

命令。这是成功的