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我试图需要两个宝石：json 和 rinku。

我在一个托管的 Linux 机器上工作，没有 root/sudo 访问权限，最终将 gems 安装在我的主目录中：

-jailshell-3.2$ gem which json
/home/cygnetrc/ruby/gems/gems/json-1.7.3/lib/json.rb
-jailshell-3.2$ gem which rinku
/home/cygnetrc/ruby/gems/gems/rinku-1.5.1/lib/rinku.rb

红宝石版本是：

-jailshell-3.2$ ruby --version
ruby 1.8.7 (2011-02-18 patchlevel 334) [x86_64-linux]

RubyGems 环境是：

  - RUBYGEMS VERSION: 1.8.11
  - RUBY VERSION: 1.8.7 (2011-02-18 patchlevel 334) [x86_64-linux]
  - INSTALLATION DIRECTORY: /home/cygnetrc/ruby/gems
  - RUBY EXECUTABLE: /usr/bin/ruby
  - EXECUTABLE DIRECTORY: /home/cygnetrc/ruby/gems/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /home/cygnetrc/ruby/gems
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
     - "gempath" => []
     - "gem" => "--remote --gen-rdoc --run-tests"
     - "gemhome" => "/home/cygnetrc/ruby/gems"
     - "rdoc" => "--inline-source --line-numbers"
  - REMOTE SOURCES:
     - http://rubygems.org/


-jailshell-3.2$ ruby -e 'puts $:'
/usr/lib/ruby/site_ruby/1.8
/usr/lib/ruby/site_ruby/1.8/x86_64-linux
/usr/lib/ruby/site_ruby
/usr/lib/ruby/vendor_ruby/1.8
/usr/lib/ruby/vendor_ruby/1.8/x86_64-linux
/usr/lib/ruby/vendor_ruby
/usr/lib/ruby/1.8
/usr/lib/ruby/1.8/x86_64-linux
.

我尝试使用以下方法包含宝石：

-jailshell-3.2$ head gettweets.rb 
#!/usr/bin/ruby 

require 'rubygems'
require 'json'
require 'net/https'
require 'uri'
require 'rinku'

但最终得到：

-jailshell-3.2$ ./gettweets.rb 
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require': no such file to load -- json (LoadError)
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
        from ./gettweets.rb:7

我环顾四周，发现了很多关于各种不同路径变量（如 RUBYOPTS）的信息，但似乎没有什么对我有用。

更复杂的是，我将从 cron 作业中调用脚本，因此无论我使用什么解决方案，它都不能依赖于更改我的主目录中的任何内容，例如我的 .profile。

我正在拔头发-有人可以帮忙吗？

更新：

感谢您的反馈意见！根据您的一些建议，我阅读了GEM_PATH如果我将其设置并导出为 shell 环境变量，哪些方法有效。但是，由于我想从 cron 运行脚本，我需要能够从脚本本身中设置它。我试过这样做，但它似乎不起作用。还有什么想法吗？

-jailshell-3.2$ ruby -I ~/ruby/gems ./gettweets.rb 
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require': no such file to load -- json (LoadError)
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
        from ./gettweets.rb:4
-jailshell-3.2$ head -20 ./gettweets.rb 
#!/usr/bin/ruby 

require 'rubygems'
require 'json'
require 'net/https'
require 'uri'
require 'rinku'
require 'optparse'

OptionParser.new do |o|
  o.on('-d', "Turn on debugging messages") { |b| $debug = b }
  o.on('-h', "Print this help screen") { puts o; exit }
  o.parse!
end

puts "[*] Starting..." if $debug

# Setenv to catch json gem
ENV['GEM_PATH'] = '~/ruby/gems'
puts "ENV " + ENV['GEM_PATH'] if $debug
-jailshell-3.2$ export GEM_PATH=~/ruby/gems
-jailshell-3.2$ ruby ./gettweets.rb  -d
[*] Starting...
ENV ~/ruby/gems
[*] Filepath = /home/cygnetrc/www/drupal/tweets.html
The queens of the women's single sculls - a look back at the Olympic history: http://t.co/d0YmNr40 #rowing #wr #London2012 #Olympics<br />
<em>Fri Jun 08 16:05:38</em><br />
1 week until #WRCMunich! NZL's Storm Uru will be racing the LM2x with @petertaylorNZ. Here, Uru talks about teamwork: http://t.co/NvjRgtwW<br />
<em>Fri Jun 08 14:38:02</em><br />
The 2012 @Paralympic Games Qualification Process is complete: http://t.co/D6DRG0bO #rowing #adaptive #Paralympic #London2012 #wr<br />
<em>Fri Jun 08 13:23:14</em><br />
true
[*] Finished
-jailshell-3.2$
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1 回答 1

0

我在通过 Apache mod_cgi 运行 Ruby 时遇到了类似的问题。没有设置环境变量，但 CGI 脚本以用户而不是 Apache 的身份运行。这是我的解决方法。

#!/bin/bash
source "/home/username/.bashrc"
rubyscript.cgi

但是，我想要一种真正的方法来添加到 Ruby 脚本本身的 gems 路径以避免这种变通方法，并发现了这个：

ENV["HOME"] = "/home/user"
ENV["GEM_HOME"] = ENV["HOME"] + "/ruby/gems"
ENV["GEM_PATH"] = ENV["GEM_HOME"] + ":/usr/lib/ruby/gems/1.8"
ENV["GEM_CACHE"] = "GEM_HOME/cache"
ENV["PATH"] = ENV["PATH"] + ":" + ENV["HOME"] + "/ruby/gems/bin"

这可以放在 Ruby 脚本的头部，也可以放在一个文件中，并以“必需”开头，即 environment.rb：

ENV["HOME"] = "/home/user"
ENV["GEM_HOME"] = ENV["HOME"] + "/ruby/gems"
ENV["GEM_PATH"] = ENV["GEM_HOME"] + ":/usr/lib/ruby/gems/1.8"
ENV["GEM_CACHE"] = "GEM_HOME/cache"
ENV["PATH"] = ENV["PATH"] + ":" + ENV["HOME"] + "/ruby/gems/bin"

ruby.cgi:

#!/usr/bin/ruby
require "environment"
require "rubygems"
require "json"
puts "Content-type: text/json"
puts ""
puts "{'bacon':['yum','tasty']}"
于 2013-02-09T08:36:07.203 回答