74 lines
2.0 KiB
Lua
74 lines
2.0 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 pairs = pairs
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local tonumber = tonumber
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local io = { popen = io.popen }
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local math = { ceil = math.ceil }
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local los = { getenv = os.getenv }
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local setmetatable = setmetatable
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local helpers = require("vicious.helpers")
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local string = {
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gsub = string.gsub,
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match = string.match
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}
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-- }}}
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-- OS: provides operating system information
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-- vicious.widgets.os
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local os = {}
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-- {{{ Operating system widget type
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local function worker(format)
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local system = {
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["ostype"] = "N/A",
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["hostname"] = "N/A",
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["osrelease"] = "N/A",
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["username"] = "N/A",
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["entropy"] = "N/A",
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["entropy_p"] = "N/A"
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}
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-- Linux manual page: uname(2)
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local kernel = helpers.pathtotable("/proc/sys/kernel")
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for k, v in pairs(system) do
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if kernel[k] then
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system[k] = string.gsub(kernel[k], "[%s]*$", "")
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end
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end
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-- BSD manual page: uname(1)
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if system["ostype"] == "N/A" then
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local f = io.popen("uname -snr")
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local uname = f:read("*line")
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f:close()
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system["ostype"], system["hostname"], system["osrelease"] =
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string.match(uname, "([%w]+)[%s]([%w%p]+)[%s]([%w%p]+)")
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end
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-- Linux manual page: random(4)
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if kernel.random then
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-- Linux 2.6 default entropy pool is 4096-bits
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local poolsize = tonumber(kernel.random.poolsize)
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-- Get available entropy and calculate percentage
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system["entropy"] = tonumber(kernel.random.entropy_avail)
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system["entropy_p"] = math.ceil(system["entropy"] * 100 / poolsize)
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end
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-- Get user from the environment
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system["username"] = los.getenv("USER")
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return {system["ostype"], system["osrelease"], system["username"],
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system["hostname"], system["entropy"], system["entropy_p"]}
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end
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-- }}}
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return setmetatable(os, { __call = function(_, ...) return worker(...) end })
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