如何从 gem 内部引用文件 [英] How to reference a file from inside of a gem

问题描述

从 gem 中找到文件绝对路径的正确方法是什么?换句话说，假设我在 gem_install_path/mygem/lib/mygem.rb 中，并且我想要 gem_install_path/mygem/foo/ 的路径.获得它的正确方法是什么?

What's the correct way to find the absolute path to a file from within a gem? In other words, let's say I'm in gem_install_path/mygem/lib/mygem.rb, and I want the path to gem_install_path/mygem/foo/. What's the correct way to get that?

推荐答案

不清楚你想要哪条路径，但可能以下其中一种方式会给你你想要的:

It is not clear which path you want, but probably one of the following will give you what you want:

Gem.loaded_specs["mygem"].base_dir
Gem.loaded_specs["mygem"].full_gem_path
Gem.loaded_specs["mygem"].gem_dir
Gem.loaded_specs["mygem"].gems_dir

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