如何删除默认宝石?！想卸载一个gem 1.7.7版本的json [英] How can I remove a default gem? ! want to uninstall a gem 1.7.7 version of json

问题描述

我在 OSX 和 Ubuntu 中有相同的 rails 应用程序，我想使用 Zeus 来加速我的 rspec.在 Ubuntu 中，Zeus 启动正常，但在 OSX 中它总是崩溃.最后我找到了问题，https://github.com/burke/zeus/issues/237#issuecomment-18700462 OSX 和 Ubuntu 的区别在于 json gem 的版本.我使用 gem list |grep jsonUbuntu 显示

I have the same rails app in OSX and Ubuntu, I want to use Zeus to speed up my rspec. In Ubuntu, Zeus starts Ok, but in OSX it always be crashed. At last I find the issue, https://github.com/burke/zeus/issues/237#issuecomment-18700462 the difference between OSX and Ubuntu is the version of json gem. I use gem list | grep json Ubuntu shows

json (1.8.1, 1.8.0, 1.5.3)
json_pure (1.5.3)
json_spec (1.1.1)
jsonpath (0.5.3)
multi_json (1.8.2, 1.7.8, 1.0.3)

Mac 显示

json (1.8.1, 1.7.7)
json_spec (1.1.1)
jsonpath (0.5.5, 0.5.3)
multi_json (1.8.2, 1.7.8)

所以想卸载1.7.7版本的json gem让zeus启动，但是

so I want to uninstall 1.7.7 version of json gem to make zeus start, but

gem uninstall json -v 1.7.7
ERROR:  While executing gem ... (Gem::InstallError)
gem "json" cannot be uninstalled because it is a default gem

我该怎么办?

推荐答案

因此，据我所知，没有简单的命令可以将 gemspec 文件从默认文件夹移动到非默认文件夹.据我所知，这是一件好事，但这里有关于如何手动执行此操作的说明.

So based off what I can tell there is no easy command that can move the gemspec file from the default folder to the non-default folder. This is a good thing from what I can tell but here are the instructions on how to do this by hand.

1. 找到默认规范的位置.最简单的方法是进入 irb 并运行以下命令:

irb(main):002:0> Gem.default_specifications_dir
=> "/Users/user/.rubies/ruby-2.5.7/lib/ruby/gems/2.5.0/specifications/default"

对于较旧的红宝石，它是:

For older rubygems it's:

irb(main):001:0> File.join Gem::Specification.default_specifications_dir
=> "/Users/newdark/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/specifications/default"

这是构建 gemspec 路径的代码行https://github.com/rubygems/rubygems/blob/v2.6.13/lib/rubygems/installer.rb#L420

This is the line of code that builds the gemspec path https://github.com/rubygems/rubygems/blob/v2.6.13/lib/rubygems/installer.rb#L420

1. 获得文件路径后，只需将 gem 名称和版本从默认文件夹移动到父文件夹即可.

1. Once you get the file path you just need to move the gem name and version from the default folder to the parent folder.

$ cd /Users/newdark/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/specifications/default
$ mv json-1.7.7.gemspec ../

如果您执行 gem list -d，您应该不会再看到 gem 版本 json-1.7.7 旁边的字词 Installed at (default).然后，您可以运行 gem uninstall json -v 1.7.7 而不会与您发生冲突.如果你想撤销这一切，只需运行 gem install json -v 1.7.7 --default

if you do gem list -d you should no longer see the words Installed at (default) next to the gem version json-1.7.7. you can then run gem uninstall json -v 1.7.7 with out it fighting you. If you want to undo all this just run gem install json -v 1.7.7 --default

这篇关于如何删除默认宝石?！想卸载一个gem 1.7.7版本的json的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！