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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local tonumber = tonumber
local io = { popen = io.popen }
local setmetatable = setmetatable
-- }}}
-- Pacman: provides number of pending updates on Arch Linux
module("vicious.pacman")
-- {{{ Pacman widget type
function worker(format)
-- Check if updates are available
local f = io.popen("pacman -Qu")
-- Initialise updates
local updates = nil
-- Get data
for line in f:lines() do
-- If there are 'Targets:' then updates are available,
-- number is provided, we don't have to count packages
updates = line:match("^Targets[%s]%(([%d]+)%)") or 0
-- If the count changed then break out of the loop
if tonumber(updates) > 0 then
break
end
end
f:close()
return {updates}
end
-- }}}
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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