我如何找出宝石的所有依赖关系？ [英] How do I find out all the dependencies of a gem?

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问题描述

我一直在试图找出ruby-gem的依赖关系。我知道gem dependency命令会让我知道gem的依赖关系。但我想做的比这更多。我也想知道由gem dependency命令生成的那些gem的依赖关系。我的意思是，我想找出所有的宝石，直到最后一块，我的宝石取决于它。

任何指针都会被赞赏。提前致谢。



注意：这个想法是建立一些像 https://www.gemlou.pe/

解决方案

以下类将递归地获取gem依赖关系（注意其证明的概念，所以它不会做任何幻想，但它是一个很好的起点）。有关文档，请参阅rubydocs： Gem :: Dependency 和 Gem :: Specification 

  class GemRequirements 
 def初始化（name，version = nil）
 @gem = Gem :: Dependency.new（name，版本）
结束
 
 def dependency_tree 
 @dependency_tree || = {} .merge（get_dependency（@gem））
结束
 
私人
 
 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

你可以使用它编程方式在您的应用程序或从红宝石控制台：

  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 - 测试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 - 测试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 - 测试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=> {}}}}


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.

Any pointers will be appreciated. Thanks in advance.

Note: The idea is to build something like https://www.gemlou.pe/

解决方案

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

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"=>{}}}}

这篇关于我如何找出宝石的所有依赖关系？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！

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