如何找出 gem 的所有依赖项? [英] How do I find out all the dependencies of a gem?
问题描述
我一直在尝试找出 ruby-gem 的依赖项.我知道 gem 依赖命令会让我知道 gem 的依赖.但我想做的还不止这些.我也想知道 gem 依赖命令生成的那些 gem 的依赖关系.我的意思是,我想找出我的宝石所依赖的最后一颗宝石.
I have been trying to find out dependencies for a ruby-gem. I know that gem dependency command will let me know about the dependencies of the gem. But I want to do more than that. I also want to know the dependencies of those gems generated by gem dependency command. I mean, I want to find out all the gems till the last one, on which my gem is depending.
任何指针将不胜感激.提前致谢.
Any pointers will be appreciated. Thanks in advance.
注意:这个想法是构建类似 https://www.gemlou.pe/
Note: The idea is to build something like https://www.gemlou.pe/
推荐答案
以下类将递归获取 gem 依赖项(注意它的概念证明,所以它没有做任何花哨的事情,但它是一个很好的起点).有关文档,请参阅 rubydocs:Gem::Dependency和 Gem::Specification
following class will recursively get gem dependencies (note its proof of concept so it does not do anything fancy, but its a good starting point). for documentation please refer rubydocs: Gem::Dependency and Gem::Specification
class GemRequirements
def initialize(name, version = nil)
@gem = Gem::Dependency.new(name, version)
end
def dependency_tree
@dependency_tree ||= {}.merge(get_dependency(@gem))
end
private
def get_dependency(gem_dependency)
spec = gem_dependency.matching_specs.first
dep_key = "#{gem_dependency.name} #{spec.version}"
hash = { dep_key => {} }
spec.runtime_dependencies.each do |spec_dependency|
spec_dependency_spec = spec_dependency.matching_specs.first
spec_dep_key = "#{spec_dependency.name} #{spec_dependency_spec.version}"
hash[dep_key][spec_dep_key] = get_dependency(spec_dependency)
end
hash
end
end
您可以在您的应用程序中或从 ruby 控制台以编程方式使用它:
you can use it programatically in your app or from ruby console:
r = GemRequirements.new 'rails'
r.dependency_tree
=> {"rails 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"actionpack 3.2.12"=>
{"actionpack 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"activemodel 3.2.12"=>
{"activemodel 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"builder 3.0.4"=>{"builder 3.0.4"=>{}}}},
"rack-cache 1.2"=>
{"rack-cache 1.2"=>{"rack 1.4.5"=>{"rack 1.4.5"=>{}}}},
"builder 3.0.4"=>{"builder 3.0.4"=>{}},
"rack 1.4.5"=>{"rack 1.4.5"=>{}},
"rack-test 0.6.2"=>
{"rack-test 0.6.2"=>{"rack 1.4.5"=>{"rack 1.4.5"=>{}}}},
"journey 1.0.4"=>{"journey 1.0.4"=>{}},
"sprockets 2.2.2"=>
{"sprockets 2.2.2"=>
{"hike 1.2.1"=>{"hike 1.2.1"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}},
"rack 1.4.5"=>{"rack 1.4.5"=>{}},
"tilt 1.4.1"=>{"tilt 1.4.1"=>{}}}},
"erubis 2.7.0"=>{"erubis 2.7.0"=>{}}}},
"activerecord 3.2.12"=>
{"activerecord 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"activemodel 3.2.12"=>
{"activemodel 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"builder 3.0.4"=>{"builder 3.0.4"=>{}}}},
"arel 3.0.2"=>{"arel 3.0.2"=>{}},
"tzinfo 0.3.37"=>{"tzinfo 0.3.37"=>{}}}},
"activeresource 3.2.12"=>
{"activeresource 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"activemodel 3.2.12"=>
{"activemodel 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"builder 3.0.4"=>{"builder 3.0.4"=>{}}}}}},
"actionmailer 3.2.12"=>
{"actionmailer 3.2.12"=>
{"actionpack 3.2.12"=>
{"actionpack 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"activemodel 3.2.12"=>
{"activemodel 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"builder 3.0.4"=>{"builder 3.0.4"=>{}}}},
"rack-cache 1.2"=>
{"rack-cache 1.2"=>{"rack 1.4.5"=>{"rack 1.4.5"=>{}}}},
"builder 3.0.4"=>{"builder 3.0.4"=>{}},
"rack 1.4.5"=>{"rack 1.4.5"=>{}},
"rack-test 0.6.2"=>
{"rack-test 0.6.2"=>{"rack 1.4.5"=>{"rack 1.4.5"=>{}}}},
"journey 1.0.4"=>{"journey 1.0.4"=>{}},
"sprockets 2.2.2"=>
{"sprockets 2.2.2"=>
{"hike 1.2.1"=>{"hike 1.2.1"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}},
"rack 1.4.5"=>{"rack 1.4.5"=>{}},
"tilt 1.4.1"=>{"tilt 1.4.1"=>{}}}},
"erubis 2.7.0"=>{"erubis 2.7.0"=>{}}}},
"mail 2.4.4"=>
{"mail 2.4.4"=>
{"mime-types 1.21"=>{"mime-types 1.21"=>{}},
"treetop 1.4.12"=>
{"treetop 1.4.12"=>{"polyglot 0.3.3"=>{"polyglot 0.3.3"=>{}}}},
"i18n 0.6.4"=>{"i18n 0.6.4"=>{}}}}}},
"railties 3.2.12"=>
{"railties 3.2.12"=>
{"rake 10.1.0"=>{"rake 10.1.0"=>{}},
"rack-ssl 1.3.3"=>
{"rack-ssl 1.3.3"=>{"rack 1.4.5"=>{"rack 1.4.5"=>{}}}},
"thor 0.18.1"=>{"thor 0.18.1"=>{}},
"rdoc 3.12.2"=>{"rdoc 3.12.2"=>{"json 1.8.1"=>{"json 1.8.1"=>{}}}},
"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"actionpack 3.2.12"=>
{"actionpack 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"activemodel 3.2.12"=>
{"activemodel 3.2.12"=>
{"activesupport 3.2.12"=>
{"activesupport 3.2.12"=>
{"i18n 0.6.4"=>{"i18n 0.6.4"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}}}},
"builder 3.0.4"=>{"builder 3.0.4"=>{}}}},
"rack-cache 1.2"=>
{"rack-cache 1.2"=>{"rack 1.4.5"=>{"rack 1.4.5"=>{}}}},
"builder 3.0.4"=>{"builder 3.0.4"=>{}},
"rack 1.4.5"=>{"rack 1.4.5"=>{}},
"rack-test 0.6.2"=>
{"rack-test 0.6.2"=>{"rack 1.4.5"=>{"rack 1.4.5"=>{}}}},
"journey 1.0.4"=>{"journey 1.0.4"=>{}},
"sprockets 2.2.2"=>
{"sprockets 2.2.2"=>
{"hike 1.2.1"=>{"hike 1.2.1"=>{}},
"multi_json 1.8.2"=>{"multi_json 1.8.2"=>{}},
"rack 1.4.5"=>{"rack 1.4.5"=>{}},
"tilt 1.4.1"=>{"tilt 1.4.1"=>{}}}},
"erubis 2.7.0"=>{"erubis 2.7.0"=>{}}}}}},
"bundler 1.3.5"=>{"bundler 1.3.5"=>{}}}}
这篇关于如何找出 gem 的所有依赖项?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!