如何从红宝石脚本中引用本地宝石？ [英] How to reference a local gem from a ruby script?

问题描述

我需要从纯红宝石脚本中引用本地宝石，而无需安装宝石。在如何引用红宝石中的本地宝石的路上？，我尝试使用以下设置创建Gemfile：

I need to reference a local gem from a plain ruby script, without installing the gem. On the trail of How to refer a local gem in ruby?, i tried creating a Gemfile with the following setup:

%w(
  custom_gem
  another_custom_gem
).each do |dependency|
  gem dependency, :path => File.expand_path("../../#{dependency}", __FILE__)
end

脚本如下：

require 'custom_gem'
CustomGem::Do.something

当我执行以下操作时：

bundle exec ruby script.rb

我得到：

script.rb:1:in `require': cannot load such file -- custom_gem (LoadError) from script.rb:1:in `<main>'

如果我忽略了则需要'custom_gem'，我得到：

If I leave out the require 'custom_gem' , I get:

script.rb:3:in `<main>': uninitialized constant CustomGem (NameError)

我什至尝试不使用捆绑器，而只是写 gem .. 。：path =>̣... 本身，但没有结果。是否有其他方法可以从ruby脚本中引用自定义gem，而无需在本地安装gem？

I even tried without bundler, and just writing gem ... :path =>̣ ... in the script itself, but without results. Is there any other way of referencing custom gems from ruby scripts, without installing the gems locally?

推荐答案

请确保您的宝石名称与Gemfile中的相同（例如 custom_gem ）

Make sure that your gem name as same as in Gemfile (e.g. custom_gem)

# Gemfile

source "https://rubygems.org"

gem "custom_gem", path: "/home/username/path/to/custom_gem"

别忘了使用捆绑器实际安装此宝石

Don't forget to actually install this gem using bundler

bundle install

此后，脚本应已准备就绪，可供 bundle exec ruby​​ script.rb

After that, the script should be ready to use by bundle exec ruby script.rb

# script.rb

require 'custom_gem'
CustomGem::Do.something

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