Class: Gem::Resolver::IndexSpecification

Inherits:
Specification show all
Defined in:
lib/rubygems/resolver/index_specification.rb

Overview

Represents a possible Specification object returned from IndexSet. Used to delay needed to download full Specification objects when only the name and version are needed.

Instance Attribute Summary

Attributes inherited from Specification

#name, #platform, #set, #source, #version

Instance Method Summary collapse

Methods inherited from Specification

#download, #fetch_development_dependencies, #full_name, #install, #installable_platform?, #local?

Constructor Details

#initialize(set, name, version, source, platform) ⇒ IndexSpecification

An IndexSpecification is created from the index format described in `gem help generate_index`.

The set contains other specifications for this (URL) source.

The name, version and platform are the name, version and platform of the gem.



17
18
19
20
21
22
23
24
25
26
27
28
 
# File 'lib/rubygems/resolver/index_specification.rb', line 17

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

  @set = set
  @name = name
  @version = version
  @source = source
  @platform = Gem::Platform.new(platform.to_s)
  @original_platform = platform.to_s

  @spec = nil
end

Instance Method Details

#==(other) ⇒ Object 



58
59
60
61
62
63
 
# File 'lib/rubygems/resolver/index_specification.rb', line 58

def ==(other)
  self.class === other &&
    @name == other.name &&
    @version == other.version &&
    @platform == other.platform
end

#dependencies ⇒ Object

The dependencies of the gem for this specification



33
34
35
 
# File 'lib/rubygems/resolver/index_specification.rb', line 33

def dependencies
  spec.dependencies
end

#hash ⇒ Object 



65
66
67
 
# File 'lib/rubygems/resolver/index_specification.rb', line 65

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

#inspect ⇒ Object

:nodoc:



69
70
71
 
# File 'lib/rubygems/resolver/index_specification.rb', line 69

def inspect # :nodoc:
  "#<%s %s source %s>" % [self.class, full_name, @source]
end

#pretty_print(q) ⇒ Object

:nodoc:



73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
 
# File 'lib/rubygems/resolver/index_specification.rb', line 73

def pretty_print(q) # :nodoc:
  q.group 2, "[Index specification", "]" do
    q.breakable
    q.text full_name

    unless Gem::Platform::RUBY == @platform
      q.breakable
      q.text @platform.to_s
    end

    q.breakable
    q.text "source "
    q.pp @source
  end
end

#required_ruby_version ⇒ Object

The required_ruby_version constraint for this specification

A fallback is included because when generated, some marshalled specs have it set to nil.



43
44
45
 
# File 'lib/rubygems/resolver/index_specification.rb', line 43

def required_ruby_version
  spec.required_ruby_version || Gem::Requirement.default
end

#required_rubygems_version ⇒ Object

The required_rubygems_version constraint for this specification

A fallback is included because the original version of the specification API didn't include that field, so some marshalled specs in the index have it set to nil.



54
55
56
 
# File 'lib/rubygems/resolver/index_specification.rb', line 54

def required_rubygems_version
  spec.required_rubygems_version || Gem::Requirement.default
end

#spec ⇒ Object

Fetches a Gem::Specification for this IndexSpecification from the #source.



92
93
94
95
96
97
98
99
 
# File 'lib/rubygems/resolver/index_specification.rb', line 92

def spec # :nodoc:
  @spec ||=
    begin
      tuple = Gem::NameTuple.new @name, @version, @original_platform

      @source.fetch_spec tuple
    end
end