ownership_enable.rb

#!/usr/bin/env ruby -wKU
# 101221, nate
# attempt to fix perm/ownership issues on locally attached storage
# for some reason, these arrays were configured with ownership disabled
#

require 'osx/cocoa'

# get name of root volume,
# subtract it from array of total volumes
# to avoid messing with ownership there
def get_volumes
  root = [OSX.load_plist(`diskutil info -plist /`)['VolumeName']]
  @volumes = OSX.load_plist(`diskutil list -plist`)['VolumesFromDisks'] - root
end

# change to vsdbutil -i to enable ownership on all mounted vols
def enable_ownership
  #@volumes.each { |vol| system "vsdbutil -c \"/Volumes/#{vol}\"" }
  %x(vsdbutil -i)
end

def get_logged_in_user
  @user = %x(w | awk '/[c]onsole/ {print $1}').chomp
  @group = "staff"
end

def set_ownership(user, group, volumes)
  #@volumes.each { |vol| FileUtils.chown_R(@user, @group, "\"/Volumes/#{vol}\"", :verbose => true)}
  cleaned = @volumes.each {|vol| vol.gsub(/\s/, "\\ ") }
  cleaned.each { |escaped| system "chown -Rfv #{@user}:#{@group} \"/Volumes/#{escaped}\"" }
end

def check_root
  if ENV['USER'] != "root"
    puts "This script must be run as root.\nPlease try again."
    exit(1)
  end
end

# make it work
check_root
enable_ownership
get_volumes
get_logged_in_user
set_ownership(@user, @group, @volumes)