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从Ruby脚本中检查gem路径

[英]Check gem path from within Ruby script

原文 2013-06-17 08:16:07 3 1 ruby

There are many questions and answers regarding checking the Ruby Gem path from the command line. 关于从命令行检查Ruby Gem路径有很多问题和答案。 However I haven't been able to work out how to check it from within a Ruby script. 但是我还无法弄清楚如何从Ruby脚本中检查它。 I need to do so because I have a require which works fine from irb, but fails within my script with a "cannot load such file" error. 我需要这样做是因为我有一个可以从irb正常工作的require ，但是在我的脚本中失败并出现“无法加载此类文件”错误。

How can I check where Ruby is searching for Gems from WITHIN the script? 我如何检查Ruby在脚本中从何处搜索Gems？

EDIT: 编辑：

The fix for my require turned out to be to add the required gem to the gemspec file as a dependency. 我require解决的方法是将所需的gem作为依赖项添加到gemspec文件中。 However that doesn't explain why irb was okay but the script wasn't...since the dependency was available, shouldn't they both have found it? 但是，这并不能解释为什么irb可以，但是脚本不可以...由于依赖关系可用，所以他们俩都找不到吗？

1 个解决方案

I think you're looking for $LOAD_PATH . 我认为您正在寻找$LOAD_PATH 。 Being a list, you can append new search paths to it using push or unshift . 作为列表，您可以使用push或unshift为其添加新的搜索路径。 Also, if you're using a Gemfile for your script, you can try to execute your script using this command bundle exec ruby my_script.rb . 另外，如果您使用Gemfile作为脚本，则可以尝试使用此命令bundle exec ruby my_script.rb来执行脚本。