67 lines
1.9 KiB
Lua
67 lines
1.9 KiB
Lua
---------------------------------------------------
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-- Licensed under the GNU General Public License v2
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-- * (c) 2010, Adrian C. <anrxc@sysphere.org>
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---------------------------------------------------
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-- {{{ Grab environment
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local io = { popen = io.popen }
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local math = { max = math.max }
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local setmetatable = setmetatable
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local spawn = require("awful.spawn")
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-- }}}
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-- Pkg: provides number of pending updates on UNIX systems
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-- vicious.widgets.pkg
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local pkg_all = {}
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-- {{{ Packages widget type
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function pkg_all.async(warg, callback)
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if not warg then return end
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-- Initialize counters
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local manager = {
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["Arch"] = { cmd = "pacman -Qu" },
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["Arch C"] = { cmd = "checkupdates" },
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["Arch S"] = { cmd = "yes | pacman -Sup", sub = 1 },
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["Debian"] = { cmd = "apt-show-versions -u -b" },
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["Ubuntu"] = { cmd = "aptitude search '~U'" },
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["Fedora"] = { cmd = "yum list updates", sub = 3 },
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["FreeBSD"] ={ cmd = "pkg version -I -l '<'" },
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["Mandriva"]={ cmd = "urpmq --auto-select" }
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}
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-- Check if updates are available
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local function parse(str, skiprows)
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local size, lines, first = 0, "", skiprows or 0
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for line in str:gmatch("[^\r\n]+") do
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if size >= first then
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lines = lines .. (size == first and "" or "\n") .. line
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end
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size = size + 1
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end
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size = math.max(size-first, 0)
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return {size, lines}
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end
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-- Select command
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local _pkg = manager[warg]
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spawn.easy_async(_pkg.cmd, function(stdout) callback(parse(stdout, _pkg.sub)) end)
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end
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-- }}}
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-- {{{ Packages widget type
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local function worker(format, warg)
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local ret = nil
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pkg_all.async(warg, function(data) ret = data end)
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while ret==nil do end
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return ret
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end
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-- }}}
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return setmetatable(pkg_all, { __call = function(_, ...) return worker(...) end })
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