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Class: Gem::Resolver::APISpecification

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Specification
Instance Chain:
self, Specification
Inherits: Gem::Resolver::Specification
Defined in: lib/rubygems/resolver/api_specification.rb

Overview

Represents a specification retrieved via the rubygems.org API.

This is used to avoid loading the full Specification object when all we need is the name, version, and dependencies.

Class Method Summary

Specification - Inherited

.new

Sets default instance variables for the specification.

Instance Attribute Summary

Specification - Inherited

#dependencies

The dependencies of the gem for this specification.
#installable_platform?

Returns true if this specification is installable on this platform.
#name

The name of the gem for this specification.
#platform

The platform this gem works on.
#required_ruby_version

The required_ruby_version constraint for this specification.
#required_rubygems_version

The required_ruby_version constraint for this specification.
#set

The set this specification came from.
#source

The source for this specification.
#spec

The ::Gem::Specification for this Specification.
#version

The version of the gem for this specification.
#local?

Instance Method Summary

Specification - Inherited

#download,
#full_name

The name and version of the specification.
#install

Installs this specification using the ::Gem::Installer options.
#fetch_development_dependencies

Fetches development dependencies if the source does not provide them by default (see APISpecification).

Constructor Details

.new(set, api_data) ⇒ APISpecification

[ GitHub ] 

  


# File 'lib/rubygems/resolver/api_specification.rb', line 14



def self.new(set, api_data)
  cache_key = [set, api_data]
  cache = @@cache[cache_key]
  return cache if cache
  @@cache[cache_key] = super
end


  






  

  

    #initialize(set, api_data)  ⇒ APISpecification 
  



  

    

Creates an APISpecification for the given set from the rubygems.org api_data.



See guides.rubygems.org/rubygems-org-api/#misc_methods for the format of the api_data.


  





  


  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/api_specification.rb', line 28



def initialize(set, api_data)
  super()

  @set = set
  @name = api_data[:name]
  @version = Gem::Version.new(api_data[:number]).freeze
  @platform = Gem::Platform.new(api_data[:platform]).freeze
  @original_platform = api_data[:platform].freeze
  @dependencies = api_data[:dependencies].map do |name, ver|
    Gem::Dependency.new(name, ver.split(/\s*,\s*/)).freeze
  end.freeze
  @required_ruby_version = Gem::Requirement.new(api_data.dig(:requirements, :ruby)).freeze
  @required_rubygems_version = Gem::Requirement.new(api_data.dig(:requirements, :rubygems)).freeze
end


  







Instance Attribute Details



  

    #installable_platform?  ⇒ Boolean  (readonly)
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/api_specification.rb', line 61



def installable_platform? # :nodoc:
  Gem::Platform.match_gem? @platform, @name
end


  







Instance Method Details



  

    #==(other)  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/api_specification.rb', line 43



def ==(other) # :nodoc:
  self.class === other &&
    @set          == other.set &&
    @name         == other.name &&
    @version      == other.version &&
    @platform     == other.platform
end


  








  

    #fetch_development_dependencies  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/api_specification.rb', line 55



def fetch_development_dependencies # :nodoc:
  spec = source.fetch_spec Gem::NameTuple.new @name, @version, @platform

  @dependencies = spec.dependencies
end


  








  

    #hash  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/api_specification.rb', line 51



def hash
  @set.hash ^ @name.hash ^ @version.hash ^ @platform.hash
end


  








  

    #pretty_print(q)  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/api_specification.rb', line 65



def pretty_print(q) # :nodoc:
  q.group 2, "[APISpecification", "]" do
    q.breakable
    q.text "name: #{name}"

    q.breakable
    q.text "version: #{version}"

    q.breakable
    q.text "platform: #{platform}"

    q.breakable
    q.text "dependencies:"
    q.breakable
    q.pp @dependencies

    q.breakable
    q.text "set uri: #{@set.dep_uri}"
  end
end


  








  

    #source  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/api_specification.rb', line 102



def source # :nodoc:
  @set.source
end


  








  

    #spec  
  

  

    This method is for internal use only.
  



  

    

Fetches a ::Gem::Specification for this APISpecification.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/api_specification.rb', line 89



def spec # :nodoc:
  @spec ||=
    begin
      tuple = Gem::NameTuple.new @name, @version, @platform
      source.fetch_spec tuple
    rescue Gem::RemoteFetcher::FetchError
      raise if @original_platform == @platform

      tuple = Gem::NameTuple.new @name, @version, @original_platform
      source.fetch_spec tuple
    end
end