A ruby module that retrieves the resolution details of your monitors - based on https://github.com/jhford/screenresolution

screen_resolution.rb

require 'active_support/core_ext/object/try'

class ScreenResolution

  #ONLY FOR MAC
  #Has a dependency on the screenresolution plugin. Install with it with `brew install screenresolution`
  def self.get
    #The screenresolution script output is going to STDERR (uses NSLog), so we redirect to STDOUT
    raw_output = %x(screenresolution get 2>&1)
    output = raw_output.split("\n")
    output.map.with_index do |line, i|
      next if i == 0
      raw_resolution = line.split("Display #{i-1}: ")[1]
      resolution = raw_resolution.split('x')
      color_refresh_rate = resolution[2].try(:split, '@')
      color = color_refresh_rate.try(:[], 0)
      refresh_rate = color_refresh_rate.try(:[], 1)
      {
        width: resolution[0].to_i,
        height: resolution[1].to_i,
        color: color.to_i,
        refresh_rate: refresh_rate.to_i
      }
    end.compact
  end
end