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Class: Gem::Resolver::APISpecification

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
Instance Chain:
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.

#set

The set this specification came from.

#source

The source for this specification.

#spec
#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

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 17

def initialize(set, api_data)
  super()

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

Instance Attribute Details

#installable_platform?Boolean (readonly)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/resolver/api_specification.rb', line 45

def installable_platform? # :nodoc:
  Gem::Platform.match @platform
end

Instance Method Details

#==(other)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/resolver/api_specification.rb', line 30

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

#fetch_development_dependencies

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/resolver/api_specification.rb', line 39

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

  @dependencies = spec.dependencies
end

#pretty_print(q)

This method is for internal use only.
[ GitHub ]

  
# File 'lib/rubygems/resolver/api_specification.rb', line 49

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 86

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 73

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