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Class: Gem::BasicSpecification

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses:
Specification, StubSpecification
Inherits: Object
Defined in: lib/rubygems/basic_specification.rb

Overview

BasicSpecification is an abstract class which implements some common code used by both Specification and StubSpecification.

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Class Method Details

.default_specifications_dir

[ GitHub ] 

  


# File 'lib/rubygems/basic_specification.rb', line 32



def self.default_specifications_dir
  File.join(Gem.default_dir, "specifications", "default")
end


  







Instance Attribute Details



  

    #activated?  ⇒ Boolean  (readonly)
  



  

    

True when the gem has been activated


  





  
Raises:


    
  
  • 
    (NotImplementedError)
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 39



def activated?
  raise NotImplementedError
end


  








  

    #base_dir   (rw)
  



  

    

Returns the full path to the base gem directory.



eg: /usr/local/lib/ruby/gems/1.8


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 48



def base_dir
  return Gem.dir unless loaded_from
  @base_dir ||= if default_gem? then
                  File.dirname File.dirname File.dirname loaded_from
                else
                  File.dirname File.dirname loaded_from
                end
end


  








  

    #default_gem?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 85



def default_gem?
  loaded_from &&
    File.dirname(loaded_from) == self.class.default_specifications_dir
end


  








  

    #extension_dir   (rw)
  



  

    

Returns full path to the directory where gem's extensions are installed.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 93



def extension_dir
  @extension_dir ||= File.expand_path File.join(extensions_dir, full_name)
end


  








  

    #full_gem_path   (rw)
  



  

    

The full path to the gem (install path + full name).


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 118



def full_gem_path
  # TODO: This is a heavily used method by gems, so we'll need
  # to aleast just alias it to #gem_dir rather than remove it.
  @full_gem_path ||= find_full_gem_path
end


  








  

    #loaded_from   (rw)
  



  

    

The path this gemspec was loaded from.  This attribute is not persisted.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 25



attr_reader :loaded_from


  








  

    #loaded_from=(path)   (rw)
  



  

    

Set the path the Specification was loaded from. Gem.path is converted to a String.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 197



def loaded_from= path
  @loaded_from   = path && path.to_s

  @extension_dir = nil
  @extensions_dir = nil
  @full_gem_path         = nil
  @gem_dir               = nil
  @gems_dir              = nil
  @base_dir              = nil
end


  








  

    #stubbed?  ⇒ Boolean  (readonly)
  



  

    

Whether this specification is stubbed - i.e. we have information about the gem from a stub line, without having to evaluate the entire gemspec file.


  





  
Raises:


    
  
  • 
    (NotImplementedError)
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 285



def stubbed?
  raise NotImplementedError
end


  







Instance Method Details



  

    #contains_requirable_file?(file)  ⇒ Boolean 
  



  

    

Return true if this spec can require file.


  





  


  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 60



def contains_requirable_file? file
  @contains_requirable_file ||= {}
  @contains_requirable_file[file] ||=
  begin
    if instance_variable_defined?(:@ignored) or
       instance_variable_defined?('@ignored') then
      return false
    elsif missing_extensions? then
      @ignored = true

      warn "Ignoring #{full_name} because its extensions are not built.  " +
           "Try: gem pristine #{name} --version #{version}"
      return false
    end

    suffixes = Gem.suffixes

    full_require_paths.any? do |dir|
      base = "#{dir}/#{file}"
      suffixes.any? { |suf| File.file? "#{base}#{suf}" }
    end
  end ? :yes : :no
  @contains_requirable_file[file] == :yes
end


  








  

    #extensions_dir  
  



  

    

Returns path to the extensions directory.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 100



def extensions_dir
  @extensions_dir ||= Gem.default_ext_dir_for(base_dir) ||
    File.join(base_dir, 'extensions', Gem::Platform.local.to_s,
              Gem.extension_api_version)
end


  








  

    #full_name  
  



  

    

Returns the full name (name-version) of this ::Gem.  Platform information is included (name-version-platform) if it is specified and not the default Ruby platform.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 129



def full_name
  if platform == Gem::Platform::RUBY or platform.nil? then
    "#{name}-#{version}".untaint
  else
    "#{name}-#{version}-#{platform}".untaint
  end
end


  








  

    #full_require_paths  
  



  

    

Full paths in the gem to add to $LOAD_PATH when this gem is activated.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 141



def full_require_paths
  @full_require_paths ||=
  begin
    full_paths = raw_require_paths.map do |path|
      File.join full_gem_path, path
    end

    full_paths.unshift extension_dir unless @extensions.nil? || @extensions.empty?

    full_paths
  end
end


  








  

    #gem_dir  
  



  

    

Returns the full path to this spec's gem directory. eg: /usr/local/lib/ruby/1.8/gems/mygem-1.0


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 180



def gem_dir
  @gem_dir ||= File.expand_path File.join(gems_dir, full_name)
end


  








  

    #gems_dir  
  



  

    

Returns the full path to the gems directory containing this spec's gem directory. eg: /usr/local/lib/ruby/1.8/gems


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 188



def gems_dir
  # TODO: this logic seems terribly broken, but tests fail if just base_dir
  @gems_dir ||= File.join(loaded_from && base_dir || Gem.dir, "gems")
end


  








  

    #name  
  



  

    

Name of the gem


  





  
Raises:


    
  
  • 
    (NotImplementedError)
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 211



def name
  raise NotImplementedError
end


  








  

    #platform  
  



  

    

Platform of the gem


  





  
Raises:


    
  
  • 
    (NotImplementedError)
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 218



def platform
  raise NotImplementedError
end


  








  

    #require_paths  
  



  

    

Paths in the gem to add to $LOAD_PATH when this gem is activated.



See also #require_paths=



If you have an extension you do not need to add "ext" to the require path, the extension build process will copy the extension files into “lib” for you.



The default value is "lib"



Usage:



# If all library files are in the root directory...
spec.require_path = '.'


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 243



def require_paths
  return raw_require_paths if @extensions.nil? || @extensions.empty?

  [extension_dir].concat raw_require_paths
end


  








  

    #source_paths  
  



  

    

Returns the paths to the source files for use with analysis and documentation tools.  These paths are relative to full_gem_path.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 253



def source_paths
  paths = raw_require_paths.dup

  if @extensions then
    ext_dirs = @extensions.map do |extension|
      extension.split(File::SEPARATOR, 2).first
    end.uniq

    paths.concat ext_dirs
  end

  paths.uniq
end


  








  

    #to_fullpath(path)  
  



  

    

Full path of the target library file. If the file is not in this gem, return nil.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 158



def to_fullpath path
  if activated? then
    @paths_map ||= {}
    @paths_map[path] ||=
    begin
      fullpath = nil
      suffixes = Gem.suffixes
      full_require_paths.find do |dir|
        suffixes.find do |suf|
          File.file?(fullpath = "#{dir}/#{path}#{suf}")
        end
      end ? fullpath : nil
    end
  else
    nil
  end
end


  








  

    #to_spec  
  



  

    

Return a Specification from this gem


  





  
Raises:


    
  
  • 
    (NotImplementedError)
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 270



def to_spec
  raise NotImplementedError
end


  








  

    #version  
  



  

    

Version of the gem


  





  
Raises:


    
  
  • 
    (NotImplementedError)
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/basic_specification.rb', line 277



def version
  raise NotImplementedError
end