Question

我正在为我开发的spree 2.1应用程序（也是rails 4）开发一个rails 4引擎（gem name：tax_cloud_for_spree）。这个新引擎对“tax_cloud”gem有一个gem依赖。我不能要求这种依赖;尝试启动rails服务器产生：

/Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/polyglot-0.3.3/lib/polyglot.rb:63:in `require': cannot load such file -- tax_cloud (LoadError)
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/polyglot-0.3.3/lib/polyglot.rb:63:in `require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `block in require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
    from /Users/jackryon/Documents/rails_dev/tax_cloud_for_spree/lib/tax_cloud_for_spree/engine.rb:1:in `<top (required)>'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/polyglot-0.3.3/lib/polyglot.rb:63:in `require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/polyglot-0.3.3/lib/polyglot.rb:63:in `require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `block in require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
    from /Users/jackryon/Documents/rails_dev/tax_cloud_for_spree/lib/tax_cloud_for_spree.rb:1:in `<top (required)>'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from /Users/jackryon/Documents/rails_dev/purible2/config/application.rb:7:in `<top (required)>'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
    from /Users/jackryon/.rvm/gems/ruby-2.0.0-p247@purible2/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

我目前要求在我的“lib / tax_cloud_for_spree / engine.rb”文件的顶部使用tax_cloud gem，gemspec会添加运行时依赖项，如：

Gem::Specification.new do |s|
  ...
  s.add_runtime_dependency "tax_cloud", "0.2.2"
end

似乎来自tax_cloud的lib目录无法由我的require加载。我正在使用bundle config.local将我的引导路径设置为本地git存储库，同时我正在积极开发它。

运行“bundle show tax_cloud_for_spree”显示

~/Documents/rails_dev/tax_cloud_for_spree

和捆绑show show tax_cloud给出

~/Documents/rails_dev/tax_cloud_for_spree

所以，似乎tax_cloud gem已经成功安装在这个gemset中，并且可以被要求。

我需要调用一些config.autoload_paths调用，或者可能是一个初始化器挂钩我可以阻塞来要求这个gem吗？

另一个注意事项是，如果我将tax_cloud gem直接添加到父应用程序的gemfile，我就可以启动服务器。不过，出于显而易见的原因，我更喜欢让我的引擎管理它自己的依赖项。我应该考虑编写一个生成器来将gem添加到父应用程序的gemfile中吗？这种做法看起来也很笨拙。

非常感谢任何帮助。

修改

我认为我的困境的关键在于：
是否有可能需要一个rvm gemset的捆绑宝石。
进入一个pathed到config.local路径的宝石。
然后将其加载到rails应用程序中？

这样就可以在我的应用程序环境中开发gem，同时利用第三方gem。任何人

Answer 1

我正在使用bundle config.local将我的引导路径设置为本地git存储库，而我正在积极开发它。

这是针对普通Rubygems行为的Bundler特定扩展。 Rubygems对此一无所知，因此在安装引擎时，它将使用正常的Rubygems依赖项解析过程，并期望在rubygems.org上找到tax_cloud。

实现目标的唯一方法就是您已经发现的内容：将tax_cloud gem直接添加到应用程序的Gemfile。

需要gem依赖于rails引擎开发（使用bundler config.local）

1 个答案: