Listing a Directory Tree

[Cervantes]

This code adds a class method to the Dir class that generates a nice text graphic for a directory. For example, using this program on my Rubidium directory produces:

tree:

|-- plugins |   |-- help |   |   |-- help.txt |   |   |-- help.rb |   |-- about |   |   |-- about.txt |   |   |-- about.rb |   |-- kickban.rb |   |-- license.rb |   |-- clear.rb |-- logs |-- img |   |-- rubidium-splash.png |-- testing |   |-- ansicolor.rb |   |-- colourful.rb |-- README.txt |-- IRC.rb |-- client.rb |-- plugin.rb |-- run.rb

I took the idea from the 'tree' package in the Ubuntu (and probably others) repositories.

The source:

Ruby:

class Dir   def Dir.print_tree(dir = ".", nesting = 0)     Dir.foreach(dir) do |entry|       next if entry =~ /^\.{1,2}/   # Ignore ".", "..", or hidden files       puts "|   " * nesting + "|-- #{entry}"       if File.stat(d = "#{dir}#{File::SEPARATOR}#{entry}").directory?         print_tree(d, nesting + 1)       end     end   end end

Use it like so:

Ruby:

Dir.print_tree                                      # print a tree of the current directory Dir.print_tree("plugins")                      # print a tree of the "plugins" subdirectory Dir.print_tree("/usr/lib/ruby/1.8/irb")    # print a tree of the "irb" directory in the ruby library

Thanks to wtd who helped me with something similar earlier.

[Null]

That's great!

Thanks.

[rdrake]

Very nice, Cervantes. Now, back to the IRC channel with you .