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Class: Gem::Source::SpecificFile

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::Gem::Source
Instance Chain:
self, ::Gem::Source, Comparable
Inherits: Gem::Source
Defined in: lib/rubygems/source/specific_file.rb

Overview

A source representing a single .gem file. This is used for installation of local gems.

Constant Summary

::Gem::Source - Inherited

FILES

Class Method Summary

::Gem::Source - Inherited

.new

Creates a new ::Gem::Source which will use the index located at #uri.

Instance Attribute Summary

::Gem::Source - Inherited

#update_cache?

Returns true when it is possible and safe to update the cache directory.
#uri

The URI this source will fetch gems from.

Instance Method Summary

::Gem::Source - Inherited

#<=>

Sources are ordered by installation preference.
#cache_dir

Returns the local directory to write #uri to.
#download

Downloads #spec and writes it to Gem.dir.
#fetch_spec

Fetches a specification for the given name_tuple.
#load_specs

Loads type kind of specs fetching from @uri if the on-disk cache is out of date.
#==,
#dependency_resolver_set

Returns a Set that can fetch specifications from this source.
#eql?

Alias for #==.
#hash, #pretty_print

Constructor Details

.new(file) ⇒ SpecificFile

Creates a new SpecificFile for the gem in file

[ GitHub ] 

  


# File 'lib/rubygems/source/specific_file.rb', line 16



def initialize(file)
  @uri = nil
  @path = ::File.expand_path(file)

  @package = Gem::Package.new @path
  @spec = @package.spec
  @name = @spec.name_tuple
end


  







Instance Attribute Details



  

    #path   (readonly)
  



  

    

The path to the gem for this specific file.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/source/specific_file.rb', line 11



attr_reader :path


  








  

    #spec   (readonly)
  



  

    

The ::Gem::Specification extracted from this .gem.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/source/specific_file.rb', line 28



attr_reader :spec


  







Instance Method Details



  

    #<=>(other)  
  



  

    

Orders this source against other.



If other is a SpecificFile from a different gem name nil is returned.



If other is a SpecificFile from the same gem name the versions are compared using Version#<=>



Otherwise Gem::Source#<=> is used.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/source/specific_file.rb', line 62



def <=>(other)
  case other
  when Gem::Source::SpecificFile then
    return nil if @spec.name != other.spec.name

    @spec.version <=> other.spec.version
  else
    super
  end
end


  








  

    #download(spec, dir = nil)  
  

  

    This method is for internal use only.
  



  

    
  





  
Raises:





  [ GitHub ]


  

  


# File 'lib/rubygems/source/specific_file.rb', line 40



def download(spec, dir = nil) # :nodoc:
  return @path if spec == @spec
  raise Gem::Exception, "Unable to download '#{spec.full_name}'"
end


  








  

    #fetch_spec(name)  
  

  

    This method is for internal use only.
  



  

    
  





  
Raises:





  [ GitHub ]


  

  


# File 'lib/rubygems/source/specific_file.rb', line 34



def fetch_spec(name) # :nodoc:
  return @spec if name == @name
  raise Gem::Exception, "Unable to find '#{name}'"
  @spec
end


  








  

    #load_specs(*a)  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubygems/source/specific_file.rb', line 30



def load_specs(*a) # :nodoc:
  [@name]
end


  








  

    #pretty_print(q)  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'lib/rubygems/source/specific_file.rb', line 45



def pretty_print(q) # :nodoc:
  q.group 2, '[SpecificFile:', ']' do
    q.breakable
    q.text @path
  end
end