battery.rb

# for tmux status bar
info = `pmset -g batt`.split("\n")
perc = info[1].split(" ")[1].gsub(";","")
charging = info[0].include? "AC Power"
as_f = perc.to_f
if as_f > 75
  status = "green"
  bars = 4
elsif as_f > 50
  status = "yellow"
  bars = 3
elsif as_f > 25
  status = "yellow"
  bars = 2
else
  status = "red"
  bars = 1
end

if charging
  status = "blue"
end
puts "#[fg=#{status}][#{"|" * bars}#{" " * (4 - bars)}] #{perc}#{charging ? "*":""}"