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Class: Gem::Package::IOSource

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Source
Instance Chain:
self, Source
Inherits: Gem::Package::Source
Defined in: lib/rubygems/package/io_source.rb

Overview

Supports reading and writing gems from/to a generic IO object. This is useful for other applications built on top of rubygems, such as rubygems.org.

This is a private class, do not depend on it directly. Instead, pass an IO object to new.

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(io) ⇒ IOSource

[ GitHub ] 

  


# File 'lib/rubygems/package/io_source.rb', line 14



def initialize(io)
  @io = io
end


  







Instance Attribute Details



  

    #io   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rubygems/package/io_source.rb', line 12



attr_reader :io


  








  

    #present?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rubygems/package/io_source.rb', line 30



def present?
  true
end


  







Instance Method Details



  

    #path  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/package/io_source.rb', line 46



def path
end


  








  

    #start  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/package/io_source.rb', line 18



def start
  @start ||= begin
    if io.pos > 0
      raise Gem::Package::Error, "Cannot read start unless IO is at start"
    end

    value = io.read 20
    io.rewind
    value
  end
end


  








  

    #with_read_io  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/package/io_source.rb', line 34



def with_read_io
  yield io
ensure
  io.rewind
end


  








  

    #with_write_io  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/package/io_source.rb', line 40



def with_write_io
  yield io
ensure
  io.rewind
end