Sakai site disk usage report using sakai-info gem

disk-report.rb

#!/usr/bin/env ruby
#
# disk-report.rb
#   Reports disk usage broken down by category for all sites in a Sakai instance.
#
# Written by David Adams (daveadams@gmail.com)
#
# This software is licensed to the Public Domain; No Rights Reserved
#

# Requirements
#   You must install the sakai-info gem as well as a database driver.
#   Tested drivers are:
#     For Oracle: ruby-oci8
#     For MySQL: mysql2
#
#   MySQL access may also work with the mysqlplus or mysql drivers.
#

######################################################################
#
# Variables
#
# CONNECTION_STRING
#
# connect to database using Sequel connection strings
#  (see also http://sequel.jeremyevans.net/rdoc/files/doc/opening_databases_rdoc.html)
#
# Oracle (requires 'ruby-oci8' gem to be installed)
#   "oracle://username:password@dbid"
#
# MySQL using 'mysql2' gem
#   "mysql2://username:password@dbhostname/dbname"
#
# MySQL using the 'mysqlplus' or 'mysql' gems
#   "mysql://username:password@dbhostname/dbname"
#

CONNECTION_STRING = "oracle://username:password@dbsid"

#
######################################################################

require 'sakai-info'

SakaiInfo::DB.configure({ "db" => CONNECTION_STRING })

puts "site_id,site_type,resources,attachments,melete,dropbox,total"

# write report
SakaiInfo::Site.find_all_ids.each do |site_id|
  site = SakaiInfo::Site.find(site_id)
  report_fields = [site.id,
                   site.type,
                   site.resource_storage.size_on_disk,
                   site.attachment_storage.size_on_disk,
                   site.melete_storage.size_on_disk,
                   site.dropbox_storage.size_on_disk,
                   site.total_disk_usage
                  ]
  puts(report_fields.join(","))
end