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Edit File : validator.rb \| Size : 3.63 KB
# frozen_string_literal: true #-- # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others. # All rights reserved. # See LICENSE.txt for permissions. #++ require_relative "package" require_relative "installer" ## # Validator performs various gem file and gem database validation class Gem::Validator include Gem::UserInteraction def initialize # :nodoc: require "find" 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(%r{^/}, "") installed_files << fn unless fn.empty? \|\| fn.include?("CVS") \|\| File.directory?(file_name) end installed_files end public ## # Describes a problem with a file in a gem. ErrorData = Struct.new :path, :problem do def <=>(other) # :nodoc: 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\| unless gems.empty? next unless gems.include? spec.name end next if spec.default_gem? 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 errors[gem_name][spec.full_name] = "Gem registered but doesn't exist at #{gem_directory}" next end unless File.exist? spec_path errors[gem_name][spec_path] = "Spec file missing for installed gem" end begin unless File.readable?(gem_path) raise Gem::VerificationError, "missing gem file #{gem_path}" end good, gone, unreadable = nil, nil, nil, nil File.open gem_path, Gem.binary_mode do \|_file\| package = Gem::Package.new gem_path good, gone = package.contents.partition do \|file_name\| File.exist? File.join(gem_directory, file_name) end gone.sort.each do \|path\| errors[gem_name][path] = "Missing file" end good, unreadable = good.partition do \|file_name\| File.readable? File.join(gem_directory, file_name) end unreadable.sort.each do \|path\| errors[gem_name][path] = "Unreadable file" end good.each do \|entry, data\| next unless data # HACK: `gem check -a mkrf` source = File.join gem_directory, entry["path"] File.open source, Gem.binary_mode do \|f\| unless f.read == data errors[gem_name][entry["path"]] = "Modified from original" 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 Back

Edit File : validator.rb | Size : 3.63 KB

# frozen_string_literal: true

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

require_relative "package"
require_relative "installer"

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

class Gem::Validator
  include Gem::UserInteraction

def initialize # :nodoc:
    require "find"
  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(%r{^/}, "")
      installed_files << fn unless
        fn.empty? || fn.include?("CVS") || File.directory?(file_name)
    end

installed_files
  end

public

##
  # Describes a problem with a file in a gem.

ErrorData = Struct.new :path, :problem do
    def <=>(other) # :nodoc:
      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|
      unless gems.empty?
        next unless gems.include? spec.name
      end
      next if spec.default_gem?

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

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

begin
        unless File.readable?(gem_path)
          raise Gem::VerificationError, "missing gem file #{gem_path}"
        end

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

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

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

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

good, unreadable = good.partition do |file_name|
            File.readable? File.join(gem_directory, file_name)
          end

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

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

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

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