local awful = require "awful"
local gears = require "gears"

local user_vars = require "user_variables"
local which_disk = user_vars.widget.disk.name

local function get_disk()
	local script = [[
	df -kH -B 1MB ]]..which_disk..[[ | tail -1 | awk '{printf $5}'
	]]

	awful.spawn.easy_async_with_shell(script, function(disk_perc)
		disk_perc = disk_perc:match("%d+")
		awesome.emit_signal("signal::disk", disk_perc)
	end)
end

gears.timer {
	timeout = 2000,
	call_now = true,
	autostart = true,
	callback = function()
		get_disk()
	end
}