Simple directory watcher

watch.rb

# To use this script:
#   gem install listen
#   gem install colorize
#
# then
#
#   ruby watch.rb [path]
#
# [path] defaults to ".git"
#

require 'listen'
require 'colorize'

folder = ARGV.first || '.git'

listener = Listen.to(folder, relative: true) do |modified, added, removed|
  puts "Added   : #{added.join("\n          ")}".colorize(:green) if added.any?
  puts "Modified: #{modified.join("\n          ")}".colorize(:yellow) if modified.any?
  puts "Removed : #{removed.join("\n          ")}".colorize(:red) if removed.any?
  puts
end

puts "Watching #{folder}"
puts "Press CTRL-C to stop.\n"

listener.start
sleep