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ðŸ“„ available_set.rb(1.56 KB)
ðŸ“„ command.rb(13.43 KB)
ðŸ“„ command_manager.rb(5.27 KB)
ðŸ“ commands
ðŸ“„ compatibility.rb(1.58 KB)
ðŸ“„ config_file.rb(11.82 KB)
ðŸ“ core_ext
ðŸ“„ defaults.rb(2.76 KB)
ðŸ“„ dependency.rb(7.74 KB)
ðŸ“„ dependency_installer.rb(12.36 KB)
ðŸ“„ dependency_list.rb(5.53 KB)
ðŸ“„ dependency_resolver.rb(14.97 KB)
ðŸ“„ deprecate.rb(1.73 KB)
ðŸ“„ doctor.rb(2.86 KB)
ðŸ“„ errors.rb(2.14 KB)
ðŸ“„ exceptions.rb(2.7 KB)
ðŸ“ ext
ðŸ“„ ext.rb(416 B)
ðŸ“„ gem_runner.rb(1.98 KB)
ðŸ“„ gemcutter_utilities.rb(2.84 KB)
ðŸ“„ indexer.rb(12.89 KB)
ðŸ“„ install_message.rb(281 B)
ðŸ“„ install_update_options.rb(5.09 KB)
ðŸ“„ installer.rb(22.19 KB)
ðŸ“„ installer_test_case.rb(4.28 KB)
ðŸ“„ local_remote_options.rb(3.36 KB)
ðŸ“„ mock_gem_ui.rb(1.35 KB)
ðŸ“„ name_tuple.rb(1.96 KB)
ðŸ“ package
ðŸ“„ package.rb(13.22 KB)
ðŸ“„ package_task.rb(3.77 KB)
ðŸ“„ path_support.rb(1.58 KB)
ðŸ“„ platform.rb(5.63 KB)
ðŸ“„ psych_additions.rb(249 B)
ðŸ“„ psych_tree.rb(763 B)
ðŸ“„ rdoc.rb(7.75 KB)
ðŸ“„ remote_fetcher.rb(15.99 KB)
ðŸ“„ request_set.rb(3.67 KB)
ðŸ“„ requirement.rb(6.02 KB)
ðŸ“„ safe_yaml.rb(1.11 KB)
ðŸ“ security
ðŸ“„ security.rb(20.56 KB)
ðŸ“„ server.rb(21.69 KB)
ðŸ“„ source.rb(3.12 KB)
ðŸ“„ source_list.rb(1.22 KB)
ðŸ“„ source_local.rb(1.88 KB)
ðŸ“„ source_specific_file.rb(552 B)
ðŸ“„ spec_fetcher.rb(5.17 KB)
ðŸ“„ specification.rb(66.9 KB)
ðŸ“ ssl_certs
ðŸ“„ syck_hack.rb(2.07 KB)
ðŸ“„ test_case.rb(28.09 KB)
ðŸ“„ test_utilities.rb(4.03 KB)
ðŸ“„ text.rb(1.23 KB)
ðŸ“„ uninstaller.rb(8.29 KB)
ðŸ“„ user_interaction.rb(11.44 KB)
ðŸ“„ validator.rb(4.08 KB)
ðŸ“„ version.rb(10.5 KB)
ðŸ“„ version_option.rb(1.59 KB)

Editing: validator.rb

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

require 'rubygems/package'
require 'rubygems/installer'

##
# Validator performs various gem file and gem database validation

class Gem::Validator

include Gem::UserInteraction

def initialize
    require 'find'
  end

##
  # Given a gem file's contents, validates against its own MD5 checksum
  # gem_data:: [String] Contents of the gem file

def verify_gem(gem_data)
    # TODO remove me? The code here only validate an MD5SUM that was
    # in some old formatted gems, but hasn't been for a long time.
  end

##
  # Given the path to a gem file, validates against its own MD5 checksum
  #
  # gem_path:: [String] Path to gem file

def verify_gem_file(gem_path)
    open gem_path, Gem.binary_mode do |file|
      gem_data = file.read
      verify_gem gem_data
    end
  rescue Errno::ENOENT, Errno::EINVAL
    raise Gem::VerificationError, "missing gem file #{gem_path}"
  end

private

def find_files_for_gem(gem_directory)
    installed_files = []

Find.find gem_directory do |file_name|
      fn = file_name[gem_directory.size..file_name.size-1].sub(/^\//, "")
      installed_files << fn unless
        fn =~ /CVS/ || fn.empty? || File.directory?(file_name)
    end

installed_files
  end

public

ErrorData = Struct.new :path, :problem do
    def <=> other
      return nil unless self.class === other

[path, problem] <=> [other.path, other.problem]
    end
  end

##
  # Checks the gem directory for the following potential
  # inconsistencies/problems:
  #
  # * Checksum gem itself
  # * For each file in each gem, check consistency of installed versions
  # * Check for files that aren't part of the gem but are in the gems directory
  # * 1 cache - 1 spec - 1 directory.
  #
  # returns a hash of ErrorData objects, keyed on the problem gem's name.
  #--
  # TODO needs further cleanup

def alien(gems=[])
    errors = Hash.new { |h,k| h[k] = {} }

Gem::Specification.each do |spec|
      next unless gems.include? spec.name unless gems.empty?

gem_name      = spec.file_name
      gem_path      = spec.cache_file
      spec_path     = spec.spec_file
      gem_directory = spec.full_gem_path

unless File.directory? gem_directory then
        errors[gem_name][spec.full_name] =
          "Gem registered but doesn't exist at #{gem_directory}"
        next
      end

unless File.exist? spec_path then
        errors[gem_name][spec_path] = "Spec file missing for installed gem"
      end

begin
        verify_gem_file(gem_path)

good, gone, unreadable = nil, nil, nil, nil

open gem_path, Gem.binary_mode do |file|
          package = Gem::Package.new gem_path

good, gone = package.contents.partition { |file_name|
            File.exist? File.join(gem_directory, file_name)
          }

gone.sort.each do |path|
            errors[gem_name][path] = "Missing file"
          end

good, unreadable = good.partition { |file_name|
            File.readable? File.join(gem_directory, file_name)
          }

unreadable.sort.each do |path|
            errors[gem_name][path] = "Unreadable file"
          end

good.each do |entry, data|
            begin
              next unless data # HACK `gem check -a mkrf`

source = File.join gem_directory, entry['path']

open source, Gem.binary_mode do |f|
                unless f.read == data then
                  errors[gem_name][entry['path']] = "Modified from original"
                end
              end
            end
          end
        end

installed_files = find_files_for_gem(gem_directory)
        extras = installed_files - good - unreadable

extras.each do |extra|
          errors[gem_name][extra] = "Extra file"
        end
      rescue Gem::VerificationError => e
        errors[gem_name][gem_path] = e.message
      end
    end

errors.each do |name, subhash|
      errors[name] = subhash.map do |path, msg|
        ErrorData.new path, msg
      end.sort
    end

errors
  end
end

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Editing: validator.rb

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