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PATH: opt / alt / ruby19 / lib64 / ruby / 1.9.1 / rubygems

#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++

require 'rubygems/package'

##
# Gem::Format knows the guts of the RubyGem .gem file format and provides the
# capability to read gem files

class Gem::Format

attr_accessor :spec
  attr_accessor :file_entries
  attr_accessor :gem_path

##
  # Constructs a Format representing the gem's data which came from +gem_path+

def initialize(gem_path)
    @gem_path = gem_path
  end

##
  # Reads the gem +file_path+ using +security_policy+ and returns a Format
  # representing the data in the gem

def self.from_file_by_path(file_path, security_policy = nil)
    unless File.file?(file_path)
      raise Gem::Exception, "Cannot load gem at [#{file_path}] in #{Dir.pwd}"
    end

start = File.read file_path, 20

if start.nil? or start.length < 20 then
      nil
    elsif start.include?("MD5SUM =") # old version gems
      require 'rubygems/old_format'

Gem::OldFormat.from_file_by_path file_path
    else
      begin
        open file_path, Gem.binary_mode do |io|
          from_io io, file_path, security_policy
        end
      rescue Gem::Package::TarInvalidError => e
        message = "corrupt gem (#{e.class}: #{e.message})"
        raise Gem::Package::FormatError.new(message, file_path)
      end
    end
  end

##
  # Reads a gem from +io+ at +gem_path+ using +security_policy+ and returns a
  # Format representing the data from the gem

def self.from_io(io, gem_path="(io)", security_policy = nil)
    format = new gem_path

Gem::Package.open io, 'r', security_policy do |pkg|
      format.spec = pkg.metadata
      format.file_entries = []

pkg.each do |entry|
        size = entry.header.size
        mode = entry.header.mode

format.file_entries << [{
            "size" => size, "mode" => mode, "path" => entry.full_name,
          },
          entry.read
        ]
      end
    end

format
  end

end

[-] gem_openssl.rb [edit]
[-] dependency_installer.rb [edit]
[-] exceptions.rb [edit]
[-] command.rb [edit]
[-] specification.rb [edit]
[-] path_support.rb [edit]
[+] commands
[-] syck_hack.rb [edit]
[+] ext
[-] builder.rb [edit]
[-] version.rb [edit]
[-] remote_fetcher.rb [edit]
[-] server.rb [edit]
[-] version_option.rb [edit]
[-] dependency_list.rb [edit]
[-] config_file.rb [edit]
[-] platform.rb [edit]
[-] gem_runner.rb [edit]
[-] gemcutter_utilities.rb [edit]
[-] installer.rb [edit]
[-] doc_manager.rb [edit]
[-] spec_fetcher.rb [edit]
[-] validator.rb [edit]
[-] source_index.rb [edit]
[-] command_manager.rb [edit]
[-] package_task.rb [edit]
[-] security.rb [edit]
[+] ..
[-] gem_path_searcher.rb [edit]
[-] ext.rb [edit]
[-] local_remote_options.rb [edit]
[-] psych_tree.rb [edit]
[-] installer_test_case.rb [edit]
[+] ssl_certs
[-] psych_additions.rb [edit]
[-] errors.rb [edit]
[-] test_case.rb [edit]
[-] install_update_options.rb [edit]
[-] dependency.rb [edit]
[-] user_interaction.rb [edit]
[-] uninstaller.rb [edit]
[-] package.rb [edit]
[-] require_paths_builder.rb [edit]
[-] deprecate.rb [edit]
[-] mock_gem_ui.rb [edit]
[-] test_utilities.rb [edit]
[+] package
[-] requirement.rb [edit]
[-] custom_require.rb [edit]
[-] old_format.rb [edit]
[-] text.rb [edit]
[-] defaults.rb [edit]
[-] indexer.rb [edit]
[-] format.rb [edit]