我如何删除默认的宝石？ ！想要卸载json的gem 1.7.7版本 [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上有相同的Rails应用程序，我想用Zeus来加速我的rspec。
在Ubuntu中，Zeus开始OK，但在OSX中它总是崩溃。
最后我发现这个问题， 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 json
Ubuntu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
Mac shows
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)
所以我想卸载1.7.7版本的json gem来让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
我应该怎么做做？任何帮助，将不胜感激！
What should i do? Any help will be appreciated!
推荐答案
所以基于我可以告诉有没有简单的命令，可以将gemspec文件从默认文件夹设置为无默认文件夹。从我所知道的情况来看，这是一件好事，但这里是说明如何手动做到这一点。
So based off what I can tell there is no easy command that can move the gemspec file from the default folder to the no default folder. This is a good thing from what I can tell but here is the instructions how to do this by hand.
-
查找默认规格的位置。 Easies的方法是进入
irb并运行下面的命令
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
-
获取文件路径后，您只需移动gem名称和版本从默认文件夹到父文件夹。
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 ，则不应再看到字样（默认） code>在gem版本json-1.7.7旁边。然后你可以运行 gem uninstall json -v 1.7.7 ，这样它就可以与你战斗。如果你想撤消所有这些，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
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