glob-vs-find.rb

#!/usr/bin/ruby

require 'rubygems'
require 'rbench'
require 'find'

def glob(dir)
  hash = {}
  Dir.glob("#{dir}/**/*.rb") do |f|
    hash[f] = File.mtime(f) rescue next
  end
  return hash
end

def find(dir)
  hash = {}
  Find.find(dir) do |f|
    hash[f] = File.mtime(f) rescue next if /\.rb$/o === f
  end
  return hash
end


path = ARGV.shift or raise "Specify directory"

find(path)                      # file cache
glob(path)                      # file cache

RBench.run(100) do
  report("glob") {glob(path)}
  report("find") {find(path)}
end

__END__

# 241 files
             Results |
----------------------
glob           0.661 |
find           1.820 |

# 1016 files
             Results |
----------------------
glob           2.570 |
find          11.108 |