Small script for resizing and saving (caching) images inside a directory

image_caching.rb

require 'mini_magick'
suffix = "cached_"
sleep_between_process = 0.3
sizes = ["x142","x200"]

# loop through files
Dir.glob("[^cache]*").each { |e|
  
  image_path = File.expand_path(e)
  image = MiniMagick::Image.open(image_path)
  sizes.each { |size| 
    image.resize(size)
    image.write suffix+size+"_"+e
    sleep(sleep_between_process)
  }
  
}