def initialize

super("stale", "List gems along with access times")

end

def description # :nodoc:

<<-EOF

The stale command lists the latest access time for all the files in your

installed gems.

You can use this command to discover gems and gem versions you are no

longer using.

EOF

end

def usage # :nodoc:

program_name.to_s

end

def execute

gem_to_atime = {}

Gem::Specification.each do |spec|

name = spec.full_name

Dir["#{spec.full_gem_path}/**/*.*"].each do |file|

next if File.directory?(file)

stat = File.stat(file)

gem_to_atime[name] ||= stat.atime

gem_to_atime[name] = stat.atime if gem_to_atime[name] < stat.atime

end

end

gem_to_atime.sort_by {|_, atime| atime }.each do |name, atime|

say "#{name} at #{atime.strftime "%c"}"

end

end