show-quota-free.rb

#!/usr/bin/ruby

# XXX: Don't hardcode these paths!
require '/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/number_helper.rb'
require '/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.1/lib/active_support/core_ext/numeric/bytes.rb'
include ActiveSupport::CoreExtensions::Numeric::Bytes
include ActionView::Helpers::NumberHelper

BLOCKSIZE = 1024

def get_quota_info
  username   = `whoami`.chomp
  quota_info = `/usr/sbin/quotatool -d -u #{username} /`.split(' ' )
  current    = quota_info[2].to_i
  quota      = quota_info[3].to_i
  limit      = quota_info[4].to_i

  free = (limit - current) * BLOCKSIZE;

  result = {}
  result[:used] = number_to_human_size(current * BLOCKSIZE)
  if limit > 0
    result[:free]  = number_to_human_size(free)
    result[:limit] = number_to_human_size(limit * BLOCKSIZE)
  end

  result
end


quota_info = get_quota_info()

free  = quota_info[:free]
used  = quota_info[:used]
limit = quota_info[:limit]

puts ""

if quota_info.include?(:free)
  puts "You have used #{used} of #{limit}. #{free} remaining."
else
  puts "You have used #{used}."
end

puts ""