A Ruby snippet to download Vimeo videos with ProgressBar

#!/usr/bin/ruby

require 'rubygems'
require 'progressbar'
require 'net/http'

if ARGV.size < 1
 puts "usage vimeo.rb "
 exit 1
else
 id = ARGV[0]
      Net::HTTP.start('www.vimeo.com') {|http|
       req = Net::HTTP::Get.new("/moogaloop/load/clip:#{id}", nil)
       response = http.request(req)
       /(.*)<\/caption>/.match(response.body)
  title = $1
  /(.*)<\/request_signature>/.match(response.body)
  signature = $1
  /(.*)<\/request_signature_expires>/.match(response.body)
  signatureExp = $1
  puts title
  req = Net::HTTP::Get.new("/moogaloop/play/clip:#{id}/#{signature}/#{signatureExp}/?q=hd", nil)
  http.request(req) { |response|
    /(mp4|flv)/.match(response['location'])
    ext = $1
    /http:\/\/(.*\.vimeo\.com)(\/.*)/.match(response['location'])
    Net::HTTP.start($1) {|http|
     req = Net::HTTP::Get.new($2)
     alreadyDL = 0
     http.request(req) { |response|
      pBar = ProgressBar.new(title,100)
      size = response.content_length
      File.open("#{title}.#{ext}",'w') {|file|
       response.read_body {|segment|
        alreadyDL += segment.length
        if(alreadyDL != 0)
         aPercent = (alreadyDL * 100) / size
         pBar.set(aPercent)
        end
        file.write(segment)
       }
      pBar.finish
      }
     }
    }
   } 
  }
end

gem install progressbar before.

http://snippets.dzone.com/posts/show/7630