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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 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 C"] = { cmd = "checkupdates" },
["Arch S"] = { cmd = "yes | pacman -Sup", sub = 1 },
["Debian"] = { cmd = "apt-show-versions -u -b" },
["Ubuntu"] = { cmd = "aptitude search '~U'" },
["Fedora"] = { cmd = "yum list updates", sub = 3 },
["FreeBSD"] ={ cmd = "pkg_version -I -l '<'" },
["Mandriva"]={ cmd = "urpmq --auto-select" }
}
-- 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}
end
-- }}}
return setmetatable(pkg, { __call = function(_, ...) return worker(...) end })
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