---------------------------------------------------
-- Licensed under the GNU General Public License v2
-- * (c) 2010, Adrian C. <anrxc@sysphere.org>
-- {{{ Grab environment
local io = { popen = io.popen }
local math = { max = math.max }
local setmetatable = setmetatable
-- }}}
-- Pkg: provides number of pending updates on UNIX systems
-- vicious.widgets.pkg
local pkg = {}
-- {{{ Packages widget type
local function worker(format, warg)
if not warg then return end
-- Initialize counters
local updates = 0
local manager = {
["Arch"] = { cmd = "pacman -Qu" },
["Arch S"] = { cmd = "checkupdates" },
}
-- Check if updates are available
local _pkg = manager[warg]
local f = io.popen(_pkg.cmd)
for line in f:lines() do
updates = updates + 1
end
f:close()
return {_pkg.sub and math.max(updates-_pkg.sub, 0) or updates}
return setmetatable(pkg, { __call = function(_, ...) return worker(...) end })
