battery.awesome.lua

battery_icons = {'', '', '', '', ''}

-- Create a battery widgets
batterywidget = wibox.widget.textbox()
batterywidget:set_text(" Battery | ")
batterywidgettimer = timer({ timeout = 5 })
batterywidgettimer:connect_signal("timeout",
  function()
    fh = assert(io.popen("acpi | cut -d, -f 2 -", "r"))
    local num = tonumber(string.sub(fh:read("*l"),1,-2))
    fh:close()
    
    fh = assert(io.popen("acpi | cut -d ' ' -f 3 -", "r"))
    local status = fh:read("*l")
    fh:close()
    
    if status == "Charging," then
        status = "+"
    else
        status = "-"
    end
    
    local icon = ""
    if num < 15 then
        icon = battery_icons[1]
    elseif num < 40 then
        icon = battery_icons[2]
    elseif num < 70 then
        icon = battery_icons[3]
    elseif num < 85 then
        icon = battery_icons[4]
    else
        icon = battery_icons[5]
    end
    
    if num < 15 and status == '-' then
        naughty.notify({text="Battery is Low"})
        batterywidget:set_markup(icon .. ' <span color="#ff6666">' .. status .. num .. '%</span> ' .. " | ")
    else
        batterywidget:set_markup(icon .. ' <span color="#34bb99">' .. status .. num .. '%</span> ' .. " | ")
    end
  end    
)    
batterywidgettimer:start()
batterywidgettimer:emit_signal("timeout")