helpers: improved i/o functions

[etc/awesome.git] / widget / sysload.lua

diff --git a/widget/sysload.lua b/widget/sysload.lua
index d7422d855a8efaba984397af922b5da6f8aa73a6..adf3e035ba4cf5930021e561939fa3cc42761c38 100644 (file)
--- a/widget/sysload.lua
+++ b/widget/sysload.lua
@@ -1,35 +1,30 @@
-
 --[[
-                                                  
-     Licensed under GNU General Public License v2 
-      * (c) 2013,      Luke Bonham                
-      * (c) 2010-2012, Peter Hofmann              
-                                                  
+
+     Licensed under GNU General Public License v2
+      * (c) 2013,      Luca CPZ
+      * (c) 2010-2012, Peter Hofmann
+
 --]]
 
-local helpers      = require("lain.helpers")
-local wibox        = require("wibox")
-local io           = { open = io.open }
-local string       = { match  = string.match }
-local setmetatable = setmetatable
+local helpers     = require("lain.helpers")
+local wibox       = require("wibox")
+local open, match = io.open, string.match
 
 -- System load
 -- lain.widget.sysload
-local sysload = {}
 
 local function factory(args)
+    local sysload  = { widget = wibox.widget.textbox() }
     local args     = args or {}
     local timeout  = args.timeout or 2
     local settings = args.settings or function() end
 
-    sysload.widget = wibox.widget.textbox()
-
     function sysload.update()
-        local f = io.open("/proc/loadavg")
+        local f = open("/proc/loadavg")
         local ret = f:read("*all")
         f:close()
 
-        load_1, load_5, load_15 = string.match(ret, "([^%s]+) ([^%s]+) ([^%s]+)")
+        load_1, load_5, load_15 = match(ret, "([^%s]+) ([^%s]+) ([^%s]+)")
 
         widget = sysload.widget
         settings()
@@ -40,4 +35,4 @@ local function factory(args)
     return sysload
 end
 
-return setmetatable(sysload, { __call = function(_, ...) return factory(...) end })
+return factory