A quick cobbling of Ruby codes to do a directory listing of hard disk(s).

quick_directory_listing.rb

#name: quick_directory_listing.rb
#author: robertsky
#url: http://robertsky.com
#github: https://github.com/robertsky

#gem install sys-filesystem
#https://github.com/djberg96/sys-filesystem
require 'sys/filesystem'

curDir = Dir.pwd

$out2 = nil

$multipler = 1

def subDirWalk(f)
	out = $out2
	if File.directory?(f) 
		out.puts "\t"*$multipler+"<directory>#{f}"
		Dir.chdir(f)
		Dir.glob("*").each do |e|
			$multipler += 1
			subDirWalk(e)
		end
		out.puts "\t"*$multipler+"</directory>"
		Dir.chdir("..")
	elsif File.file?(f) 
		out.puts "\t"*$multipler+"<file size=\"#{File.size(f)}\">#{f}</file>"
	end
	$multipler -=1
	#dirty fix to ensure that there will be at least one "\t" spacing.
	if $multipler < 1 then $multipler = 1 end
end

#a, b are the volumes path, escaped and unescaped respectively. number is the number of the hard disk I have processed.
a = "/Volumes/HDD\ Four"
b = "/Volumes/HDD Four"
number = 4
open(number.to_s + "_all_files.xml", "w"){ |out|
	$out2 = out
	Dir.chdir(a)
	out.puts "<all_files>"
	#quick dirty writing of information I want
	out.puts "\t<details>"
	out.puts "\t\t<volume>#{b}</volume>"
	out.puts "\t\t<volume_num>#{number.to_s}</volume_num>"
	stat = Sys::Filesystem.stat(b)
	out.puts "\t\t<block_size>#{stat.block_size}</block_size>"
	out.puts "\t\t<blocks>#{stat.blocks}</blocks>"
	out.puts "\t\t<blocks_available>#{stat.blocks_available}</blocks_available>"
	out.puts "\t</details>"
    Dir.glob("*").each do |f|
    	subDirWalk(f)
    end
    out.puts "</all_files>"
}
Dir.chdir(curDir)