红宝石列出，但不会加载（gem在用户目录中，而不是红宝石目录） [英] Ruby gem listed, but wont load (gem in user dir, not ruby dir)

问题描述

我试图获得一些支持ruby和一些ruby宝石的web主机的宝石，但不是我需要使用的宝石中的一些。

按照说明，我在这里找到了 ，我将原始的宝石位置保留在我的gem路径，并将我自己的/ path / to / my / home / gems添加到〜/ .gemrc中

  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gem，并使用gem命令的--local和--install-dir选项进行安装。然后我做了一个gem list，并且实际上可以看到我安装在我的用户目录中的宝石，以及正常系统路径中的原始宝石。

如果我踢IRB或做红宝石-e，所有系统宝石都可以正常工作。然而，我无法得到我的用户目录安装宝石加载：

  $ ruby​​ -r ruby​​gems -erequire'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 / ruby​​gems / custom_require.rb：21：在'require'
从-e：1 
  

我甚至尝试过老派的require_gem：

  $ irb -r ruby​​gems 
 irb（主）：001：0> require_gem'nokogiri'
 Gem :: LoadError：无法从/usr/local/lib/ruby/site_ruby/1.8/rubygems.rb找到RubyGem nokogiri（> 0.0.0）
 
 ：204：在`report_activate_error'中
从/usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:141:in`activate'
从/ usr / local / lib / ruby​​ / site_ruby /1.8/rubygems.rb:37:in require_gem_with_options'$ b $ from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:31:in`require_gem'$ b $ from（irb）： 1 
  

从我的宝石列表中可以看到：

  nokogiri（1.3.3）
 Nokogiri是一个HTML，XML，SAX和Reader解析器
  

我对所有用户目录安装宝石都有同样的问题。我在这里错过了什么？

编辑：这是不是的rails应用程序。这是一个命令行应用程序。编程：根据Rafe的建议，我查看了IRB的Gem.path。它仅 列出系统宝石路径，/usr/local/lib/ruby/gems/1.8，而不是我的用户目录路径。

解决方案

我遇到了同样的问题，我通过在ruby文件的顶部添加以下内容来修复它：

  require'rubygems'
  

希望有帮助

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.

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

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.

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

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

From my "gems list" I can see:

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

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

EDIT: 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.

EDIT: 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.

解决方案

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

require 'rubygems'

Hope that helps

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