A utility to convert a hex color to a UIColor in RubyMotion

ui_color.rb

#!/usr/bin/env ruby

require "bigdecimal"

def to_percent(c)
  (c / BigDecimal.new("255.0")).round(3).to_f
end

color = ARGV.shift.to_s.strip.sub("#", "")

unless color.length == 3 || color.length == 6
  puts "Invalid Color" 
  exit
end

color = color * 2 if color.length == 3
r, g, b = color.scan(/.{2}/).map(&:hex)

puts "R: #{r}"
puts "G: #{g}"
puts "B: #{b}"

color = "UIColor.colorWithRed(#{to_percent(r)}, green:#{to_percent(g)}, blue:#{to_percent(b)}, alpha:1)"

puts color

system "echo '#{color}' | pbcopy"