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  • rubygems/commands/cleanup_command.rb

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Gem::Commands::CleanupCommand

Public Class Methods

new() click to toggle source
 
               # File rubygems/commands/cleanup_command.rb, line 8
def initialize
  super 'cleanup',
        'Clean up old versions of installed gems in the local repository',
        :force => false, :test => false, :install_dir => Gem.dir

  add_option('-d', '--dryrun', "") do |value, options|
    options[:dryrun] = true
  end
end
            

Public Instance Methods

execute() click to toggle source
 
               # File rubygems/commands/cleanup_command.rb, line 37
def execute
  say "Cleaning up installed gems..."
  primary_gems = {}

  Gem.source_index.each do |name, spec|
    if primary_gems[spec.name].nil? or
       primary_gems[spec.name].version < spec.version then
      primary_gems[spec.name] = spec
    end
  end

  gems_to_cleanup = []

  unless options[:args].empty? then
    options[:args].each do |gem_name|
      dep = Gem::Dependency.new gem_name, Gem::Requirement.default
      specs = Gem.source_index.search dep
      specs.each do |spec|
        gems_to_cleanup << spec
      end
    end
  else
    Gem.source_index.each do |name, spec|
      gems_to_cleanup << spec
    end
  end

  gems_to_cleanup = gems_to_cleanup.select { |spec|
    primary_gems[spec.name].version != spec.version
  }

  deplist = Gem::DependencyList.new
  gems_to_cleanup.uniq.each do |spec| deplist.add spec end

  deps = deplist.strongly_connected_components.flatten.reverse

  deps.each do |spec|
    if options[:dryrun] then
      say "Dry Run Mode: Would uninstall #{spec.full_name}"
    else
      say "Attempting to uninstall #{spec.full_name}"

      options[:args] = [spec.name]

      uninstall_options = {
        :executables => false,
        :version => "= #{spec.version}",
      }

      if Gem.user_dir == spec.installation_path then
        uninstall_options[:install_dir] = spec.installation_path
      end

      uninstaller = Gem::Uninstaller.new spec.name, uninstall_options

      begin
        uninstaller.uninstall
      rescue Gem::DependencyRemovalException, Gem::InstallError,
             Gem::GemNotInHomeException => e
        say "Unable to uninstall #{spec.full_name}:"
        say "\t#{e.class}: #{e.message}"
      end
    end
  end

  say "Clean Up Complete"
end