JezK
Edit File: cleanup_command.rb
# frozen_string_literal: true require 'rubygems/command' require 'rubygems/dependency_list' require 'rubygems/uninstaller' class Gem::Commands::CleanupCommand < Gem::Command def initialize super 'cleanup', 'Clean up old versions of installed gems', :force => false, :install_dir => Gem.dir add_option('-n', '-d', '--dryrun', 'Do not uninstall gems') do |value, options| options[:dryrun] = true end @candidate_gems = nil @default_gems = [] @full = nil @gems_to_cleanup = nil @original_home = nil @original_path = nil @primary_gems = nil end def arguments # :nodoc: "GEMNAME name of gem to cleanup" end def defaults_str # :nodoc: "--no-dryrun" end def description # :nodoc: <<-EOF The cleanup command removes old versions of gems from GEM_HOME that are not required to meet a dependency. If a gem is installed elsewhere in GEM_PATH the cleanup command won't delete it. If no gems are named all gems in GEM_HOME are cleaned. EOF end def usage # :nodoc: "#{program_name} [GEMNAME ...]" end def execute say "Cleaning up installed gems..." if options[:args].empty? then done = false last_set = nil until done do clean_gems this_set = @gems_to_cleanup.map { |spec| spec.full_name }.sort done = this_set.empty? || last_set == this_set last_set = this_set end else clean_gems end say "Clean Up Complete" verbose do skipped = @default_gems.map { |spec| spec.full_name } "Skipped default gems: #{skipped.join ', '}" end end def clean_gems get_primary_gems get_candidate_gems get_gems_to_cleanup @full = Gem::DependencyList.from_specs deplist = Gem::DependencyList.new @gems_to_cleanup.each do |spec| deplist.add spec end deps = deplist.strongly_connected_components.flatten @original_home = Gem.dir @original_path = Gem.path deps.reverse_each do |spec| uninstall_dep spec end Gem::Specification.reset end def get_candidate_gems @candidate_gems = unless options[:args].empty? then options[:args].map do |gem_name| Gem::Specification.find_all_by_name gem_name end.flatten else Gem::Specification.to_a end end def get_gems_to_cleanup gems_to_cleanup = @candidate_gems.select { |spec| @primary_gems[spec.name].version != spec.version } default_gems, gems_to_cleanup = gems_to_cleanup.partition { |spec| spec.default_gem? } @default_gems += default_gems @default_gems.uniq! @gems_to_cleanup = gems_to_cleanup.uniq end def get_primary_gems @primary_gems = {} Gem::Specification.each do |spec| if @primary_gems[spec.name].nil? or @primary_gems[spec.name].version < spec.version then @primary_gems[spec.name] = spec end end end def uninstall_dep spec return unless @full.ok_to_remove?(spec.full_name) if options[:dryrun] then say "Dry Run Mode: Would uninstall #{spec.full_name}" return end say "Attempting to uninstall #{spec.full_name}" uninstall_options = { :executables => false, :version => "= #{spec.version}", } uninstall_options[:user_install] = Gem.user_dir == spec.base_dir uninstaller = Gem::Uninstaller.new spec.name, uninstall_options begin uninstaller.uninstall rescue Gem::DependencyRemovalException, Gem::InstallError, Gem::GemNotInHomeException, Gem::FilePermissionError => e say "Unable to uninstall #{spec.full_name}:" say "\t#{e.class}: #{e.message}" end ensure # Restore path Gem::Uninstaller may have changed Gem.use_paths @original_home, *@original_path end end