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---------------------------------------------------
-- 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 GNU/Linux
module("vicious.pkg")
-- {{{ Packages widget type
local function worker(format, dist)
-- Initialise counters
local updates = 0
local manager = {
["Arch"] = { cmd = "pacman -Qu" },
["Arch S"] = { cmd = "yes | pacman -Sup", sub = 2 },
["Debian"] = { cmd = "apt-show-versions -u -b" },
["Fedora"] = { cmd = "yum list updates", sub = 3 }
}
-- Check if updates are available
local pkg = manager[dist]
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}
end
-- }}}
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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