Class: Gem::Commands::RemoveStaleCommand

Inherits:
Gem::Command
  • Object
show all
Defined in:
lib/rubygems/commands/remove_stale_command.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RemoveStaleCommand

Returns a new instance of RemoveStaleCommand.



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# File 'lib/rubygems/commands/remove_stale_command.rb', line 4

def initialize
  super 'remove_stale', 'Remove gems for which last use time is too old'

  add_option('-y', '--yes', 'Don\'t ask for confirmation') do |value, options|
    options[:yes] = true
  end

  add_option('-d', '--days DAYS', 'Consider stale after no access for this number of days (Default: 40)') do |value, options|
    options[:days] = value.to_i
  end
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/rubygems/commands/remove_stale_command.rb', line 28

def execute
  days = options[:days] || 40
  border_time = Time.now - days  * (24 * 60 * 60)

  stale_gems = Gem::Specification.select do |spec|
    stale_gem?(spec, border_time)
  end

  to_uninstall = stale_gems.select do |spec|
    spec.dependent_gems.all? do |dependent, depency, satlist|
      stale_gems.include?(dependent) || (satlist - stale_gems).length > 0
    end
  end

  if to_uninstall.empty?
    puts 'No stale gems found.'
  else
    puts 'Stale gems:'
    to_uninstall.group_by(&:name).sort.each do |name, specs|
      all_versions = Gem::Specification.find_all_by_name(name).map(&:version)
      versions_to_uninstall = specs.map(&:version).sort
      versions_to_leave = all_versions - versions_to_uninstall
      line = "  #{name}: #{versions_to_uninstall.join(', ')}"
      unless versions_to_leave.empty?
        line << " (leaving versions: #{versions_to_leave.join(', ')})"
      end
      puts line
    end
    if options[:yes] || ask_yes_no('Remove gems?')
      to_uninstall.each do |spec|
        say "Attempting to uninstall #{spec.full_name}"
        begin
          Gem::Uninstaller.new(spec.name, {
            :version => "= #{spec.version}",
            :executables => true,
            :ignore => true
          }).uninstall
        rescue Gem::DependencyRemovalException, Gem::InstallError, Gem::GemNotInHomeException => e
          say "Unable to uninstall #{spec.full_name}:"
          say "  #{e.class}: #{e.message}"
        end
      end
    end
  end
end

#gem_atime(spec) ⇒ Object 



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# File 'lib/rubygems/commands/remove_stale_command.rb', line 16

def gem_atime(spec)
  Dir["#{spec.full_gem_path}/**/*.*"].reject do |path|
    File.directory?(path)
  end.map do |path|
    File.stat(path).atime
  end.max
end

#stale_gem?(spec, border_time) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubygems/commands/remove_stale_command.rb', line 24

def stale_gem?(spec, border_time)
  (atime = gem_atime(spec)) && (atime < border_time)
end