class Gem::Commands::CleanupCommand

Calls superclass method Gem::Command.new

# File lib/rubygems/commands/cleanup_command.rb, line 7
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

# File lib/rubygems/commands/cleanup_command.rb, line 77
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

# File lib/rubygems/commands/cleanup_command.rb, line 48
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"
 if Gem.configuration.really_verbose then
 skipped = @default_gems.map { |spec| spec.full_name }
 say "Skipped default gems: #{skipped.join ', '}"
 end
end

# File lib/rubygems/commands/cleanup_command.rb, line 99
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

# File lib/rubygems/commands/cleanup_command.rb, line 109
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

# File lib/rubygems/commands/cleanup_command.rb, line 123
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

# File lib/rubygems/commands/cleanup_command.rb, line 134
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