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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,
          :check_dev => true

add_option('-n', '-d', '--dryrun',
               'Do not uninstall gems') do |value, options|
      options[:dryrun] = true
    end

add_option('-D', '--[no-]check-development',
               'Check development dependencies while uninstalling',
               '(default: true)') do |value, options|
      options[:check_dev] = value
    end

add_option('--[no-]user-install',
               'Cleanup in user\'s home directory instead',
               'of GEM_HOME.') do |value, options|
      options[:user_install] = value
    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?
      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
    @original_home = Gem.dir
    @original_path = Gem.path

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

deps.reverse_each do |spec|
      uninstall_dep spec
    end

Gem::Specification.reset
  end

def get_candidate_gems
    @candidate_gems = unless options[:args].empty?
                        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?
    }

uninstall_from = options[:user_install] ? Gem.user_dir : @original_home

gems_to_cleanup = gems_to_cleanup.select { |spec|
      spec.base_dir == uninstall_from
    }

@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
        @primary_gems[spec.name] = spec
      end
    end
  end

def uninstall_dep(spec)
    return unless @full.ok_to_remove?(spec.full_name, options[:check_dev])

if options[:dryrun]
      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

Name	Type	Size	Permission	Last Modified	Actions
.	dir	-	0755	2024-03-03 10:47:39
..	dir	-	0755	2024-03-03 10:47:39
build_command.rb	text/x-ruby	2.03 KB	0644	2022-04-12 11:50:11
cert_command.rb	text/x-ruby	9.02 KB	0644	2022-04-12 11:50:11
check_command.rb	text/x-ruby	2.23 KB	0644	2022-04-12 11:50:11
cleanup_command.rb	text/x-ruby	4.48 KB	0644	2022-04-12 11:50:11
contents_command.rb	text/x-ruby	4.07 KB	0644	2022-04-12 11:50:11
dependency_command.rb	text/x-ruby	5.14 KB	0644	2022-04-12 11:50:11
environment_command.rb	text/x-ruby	5.16 KB	0644	2022-04-12 11:50:11
fetch_command.rb	text/x-ruby	1.77 KB	0644	2022-04-12 11:50:11
generate_index_command.rb	text/x-ruby	2.55 KB	0644	2022-04-12 11:50:11
help_command.rb	text/x-ruby	10.14 KB	0644	2022-04-12 11:50:11
info_command.rb	text/x-ruby	713 B	0644	2022-04-12 11:50:11
install_command.rb	text/x-ruby	8.4 KB	0644	2022-04-12 11:50:11
list_command.rb	text/x-ruby	939 B	0644	2022-04-12 11:50:11
lock_command.rb	text/x-ruby	2.69 KB	0644	2022-04-12 11:50:11
mirror_command.rb	text/x-ruby	624 B	0644	2022-04-12 11:50:11
open_command.rb	text/x-ruby	1.96 KB	0644	2022-04-12 11:50:11
outdated_command.rb	text/x-ruby	852 B	0644	2022-04-12 11:50:11
owner_command.rb	text/x-ruby	2.82 KB	0644	2022-04-12 11:50:11
pristine_command.rb	text/x-ruby	5.39 KB	0644	2022-04-12 11:50:11
push_command.rb	text/x-ruby	3.53 KB	0644	2022-04-12 11:50:11
query_command.rb	text/x-ruby	9.28 KB	0644	2022-04-12 11:50:11
rdoc_command.rb	text/x-ruby	2.47 KB	0644	2022-04-12 11:50:11
search_command.rb	text/x-ruby	884 B	0644	2022-04-12 11:50:11
server_command.rb	text/x-ruby	2.38 KB	0644	2022-04-12 11:50:11
setup_command.rb	text/x-ruby	17.81 KB	0644	2022-04-12 11:50:11
signin_command.rb	text/x-ruby	890 B	0644	2022-04-12 11:50:11
signout_command.rb	text/x-ruby	896 B	0644	2022-04-12 11:50:11
sources_command.rb	text/x-ruby	5.18 KB	0644	2022-04-12 11:50:11
specification_command.rb	text/x-ruby	3.27 KB	0644	2022-04-12 11:50:11
stale_command.rb	text/x-ruby	962 B	0644	2022-04-12 11:50:11
uninstall_command.rb	text/x-ruby	5.41 KB	0644	2022-04-12 11:50:11
unpack_command.rb	text/x-ruby	5.07 KB	0644	2022-04-12 11:50:11
update_command.rb	text/x-ruby	6.99 KB	0644	2022-04-12 11:50:11
which_command.rb	text/x-ruby	2.15 KB	0644	2022-04-12 11:50:11
yank_command.rb	text/x-ruby	2.29 KB	0644	2022-04-12 11:50:11