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143 lines
3.7 KiB
Ruby
143 lines
3.7 KiB
Ruby
# frozen_string_literal: true
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#--
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# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
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# All rights reserved.
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# See LICENSE.txt for permissions.
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#++
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require_relative "package"
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require_relative "installer"
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##
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# Validator performs various gem file and gem database validation
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class Gem::Validator
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include Gem::UserInteraction
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def initialize # :nodoc:
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require "find"
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end
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private
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def find_files_for_gem(gem_directory)
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installed_files = []
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Find.find gem_directory do |file_name|
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fn = file_name[gem_directory.size..file_name.size - 1].sub(/^\//, "")
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installed_files << fn unless
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fn.empty? || fn.include?("CVS") || File.directory?(file_name)
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end
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installed_files
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end
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public
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##
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# Describes a problem with a file in a gem.
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ErrorData = Struct.new :path, :problem do
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def <=>(other) # :nodoc:
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return nil unless self.class === other
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[path, problem] <=> [other.path, other.problem]
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end
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end
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##
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# Checks the gem directory for the following potential
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# inconsistencies/problems:
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#
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# * Checksum gem itself
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# * For each file in each gem, check consistency of installed versions
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# * Check for files that aren't part of the gem but are in the gems directory
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# * 1 cache - 1 spec - 1 directory.
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#
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# returns a hash of ErrorData objects, keyed on the problem gem's name.
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#--
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# TODO needs further cleanup
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def alien(gems=[])
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errors = Hash.new {|h,k| h[k] = {} }
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Gem::Specification.each do |spec|
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next unless gems.include? spec.name unless gems.empty?
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next if spec.default_gem?
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gem_name = spec.file_name
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gem_path = spec.cache_file
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spec_path = spec.spec_file
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gem_directory = spec.full_gem_path
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unless File.directory? gem_directory
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errors[gem_name][spec.full_name] =
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"Gem registered but doesn't exist at #{gem_directory}"
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next
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end
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unless File.exist? spec_path
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errors[gem_name][spec_path] = "Spec file missing for installed gem"
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end
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begin
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unless File.readable?(gem_path)
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raise Gem::VerificationError, "missing gem file #{gem_path}"
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end
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good, gone, unreadable = nil, nil, nil, nil
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File.open gem_path, Gem.binary_mode do |file|
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package = Gem::Package.new gem_path
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good, gone = package.contents.partition do |file_name|
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File.exist? File.join(gem_directory, file_name)
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end
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gone.sort.each do |path|
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errors[gem_name][path] = "Missing file"
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end
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good, unreadable = good.partition do |file_name|
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File.readable? File.join(gem_directory, file_name)
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end
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unreadable.sort.each do |path|
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errors[gem_name][path] = "Unreadable file"
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end
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good.each do |entry, data|
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begin
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next unless data # HACK `gem check -a mkrf`
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source = File.join gem_directory, entry["path"]
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File.open source, Gem.binary_mode do |f|
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unless f.read == data
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errors[gem_name][entry["path"]] = "Modified from original"
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end
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end
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end
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end
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end
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installed_files = find_files_for_gem(gem_directory)
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extras = installed_files - good - unreadable
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extras.each do |extra|
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errors[gem_name][extra] = "Extra file"
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end
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rescue Gem::VerificationError => e
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errors[gem_name][gem_path] = e.message
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end
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end
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errors.each do |name, subhash|
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errors[name] = subhash.map do |path, msg|
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ErrorData.new path, msg
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end.sort
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end
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errors
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end
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end
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