列出了Ruby gem，但无法加载(用户目录中的宝石，而不是ruby目录中的宝石) [英] Ruby gem listed, but won't load (gem in user dir, not ruby dir)

问题描述

我正在尝试在支持ruby的Web主机上运行一些宝石以及一些ruby宝石，但是我不需要使用其中的一些宝石.

I'm trying to get some gems working on a web-host which supports ruby and some ruby gems, but not some of the ones I need to use.

按照我在此处中找到的说明进行操作，我保留了原始的gem位置在我的gem路径中，然后在/path/to/my/home/gems中将我自己的添加到〜/.gemrc

Following the instructions I found here, I kept the original gem location in my gem path, and added my own at /path/to/my/home/gems to ~/.gemrc

gemhome: /users/home/myuser/gems
gempath:
- /usr/local/lib/ruby/gems/1.8
- /users/home/mysuser/gems

我手动下载了一些gems，并使用gem命令的--local和--install-dir选项进行了安装.然后，我做了一个宝石列表"，实际上可以看到我安装在用户目录中的宝石，以及正常系统路径中的原始宝石.

I downloaded some gems manually and did installs using the --local and --install-dir options of the gem command. I then did a "gem list", and can in fact see the gems I installed in my user directory, as well as the original gems in the normal system path.

如果我踩IRB或使用ruby -e，则所有系统宝石都可以正常工作.但是，我无法加载已安装gem的用户目录:

If I kick on IRB or do a ruby -e, all the system gems work fine. However, I can't get my user directory installed gems loaded:

$ ruby -r rubygems -e "require 'nokogiri'"
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require__': no such file to load -- nokogiri (LoadError)
    from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require'
    from -e:1

我什至尝试过旧学校require_gem:

I even tried the old school require_gem:

$ irb -r rubygems
irb(main):001:0> require_gem 'nokogiri'
Gem::LoadError: Could not find RubyGem nokogiri (> 0.0.0)

    from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:204:in `report_activate_error'
    from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:141:in `activate'
    from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:37:in `require_gem_with_options'
    from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:31:in `require_gem'
    from (irb):1

从我的宝石列表"中，我可以看到:

From my "gems list" I can see:

nokogiri (1.3.3)
Nokogiri is an HTML, XML, SAX, and Reader parser

所有用户目录安装gem都存在相同的问题.我在这里想念什么?

I have this same problem with all the user-directory install gems. What am I missing here?

这不是 一个Rails应用.这是针对命令行应用程序的.该程序将由我的用户帐户执行，就像上面显示的测试一样.

This is not a rails app. This is for a command line-application. The program will be executed by my user account, just like the tests shown above in.

根据Rafe的建议，我查看了IRB的Gem.path.它仅 列出系统gem路径/usr/local/lib/ruby/gems/1.8，而不列出我的用户目录路径.

Per Rafe's suggestion, I looked at Gem.path from IRB. It only lists the system gem path, /usr/local/lib/ruby/gems/1.8, and not my user dir path as well.

推荐答案

我遇到了同样的问题，我通过在ruby文件顶部添加以下内容解决了该问题

I had the same problem, I fixed it by adding the following at the top of the ruby file

require 'rubygems'

希望有帮助

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