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Class: Gem::Resolver::LockSpecification

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

Overview

The LockSpecification comes from a lockfile (Gem::RequestSet::Lockfile).

A LockSpecification's dependency information is pre-filled from the lockfile.

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.

Instance Method Summary

  • #install(options = {})

    This is a null install as a locked specification is considered installed.

  • #spec

    A specification constructed from the lockfile is returned.

Specification - Inherited

#full_name

The name and version of the specification.

#install

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

Constructor Details

.new(set, name, version, sources, platform) ⇒ LockSpecification

[ GitHub ]

  
# File 'lib/rubygems/resolver/lock_specification.rb', line 12

def initialize set, name, version, sources, platform
  super()

  @name     = name
  @platform = platform
  @set      = set
  @source   = sources.first
  @sources  = sources
  @version  = version

  @dependencies = []
  @spec         = nil
end

Instance Attribute Details

#sources (readonly)

[ GitHub ]

  
# File 'lib/rubygems/resolver/lock_specification.rb', line 10

attr_reader :sources

Instance Method Details

#install(options = {})

This is a null install as a locked specification is considered installed. options are ignored.

[ GitHub ]

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

def install options = {}
  destination = options[:install_dir] || Gem.dir

  if File.exist? File.join(destination, 'specifications', spec.spec_name) then
    yield nil
    return
  end

  super
end

#spec

A specification constructed from the lockfile is returned

[ GitHub ]

  
# File 'lib/rubygems/resolver/lock_specification.rb', line 73

def spec
  @spec ||= Gem::Specification.find { |spec|
    spec.name == @name and spec.version == @version
  }

  @spec ||= Gem::Specification.new do |s|
    s.name     = @name
    s.version  = @version
    s.platform = @platform

    s.dependencies.concat @dependencies
  end
end