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-rw-r--r--pacman.lua38
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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 }
+-- }}}
+
+
+-- 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
+-- }}}