48 lines
1.3 KiB
Lua
48 lines
1.3 KiB
Lua
----------------------------------------------------------
|
|
-- 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 = 0
|
|
|
|
-- Get data
|
|
for line in f:lines() do
|
|
-- Pacman 3.3 returns one package on a line, without any extra
|
|
-- information
|
|
updates = updates + 1
|
|
|
|
-- Pacman 3.2 returns 'Targets:' followed by a number of
|
|
-- available updates and a list of packages all on one
|
|
-- line. Since the number is provided we don't have to count
|
|
-- them
|
|
--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 })
|