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author | Adrian C. (anrxc) <anrxc@sysphere.org> | 2010-03-14 01:55:33 +0100 |
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committer | Adrian C. (anrxc) <anrxc@sysphere.org> | 2010-03-14 01:55:33 +0100 |
commit | 237470c8f45190b213e3a173ce6ae1a74b3e11fe (patch) | |
tree | 7f53c8144761947d4bde20715bcad34f4be0d6c0 /widgets/pkg.lua | |
parent | 9a82d4113a8271b7dfc7506f2b07379e3ede89a8 (diff) | |
download | vicious-legacy-237470c8f45190b213e3a173ce6ae1a74b3e11fe.tar.xz |
API: transform widgets namespace table to a directory
Diffstat (limited to 'widgets/pkg.lua')
-rw-r--r-- | widgets/pkg.lua | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/widgets/pkg.lua b/widgets/pkg.lua new file mode 100644 index 0000000..fa2375b --- /dev/null +++ b/widgets/pkg.lua @@ -0,0 +1,41 @@ +--------------------------------------------------- +-- 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.widgets.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 }) |