weather: added failsafe check; #105

[etc/awesome.git] / widgets / net.lua

diff --git a/widgets/net.lua b/widgets/net.lua
index ed6a2efd76e179603fa4fdf2823d187d9b383492..2585ad4b4e083372c7e8aee7596c93e711a9874e 100644 (file)
--- a/widgets/net.lua
+++ b/widgets/net.lua
@@ -14,9 +14,9 @@ local naughty      = require("naughty")
 local wibox        = require("wibox")
 
 local io           = { popen  = io.popen }
-local tostring     = tostring
 local string       = { format = string.format,
-                       gsub   = string.gsub }
+                       gsub   = string.gsub,
+                       match  = string.match }
 
 local setmetatable = setmetatable
 
@@ -31,9 +31,9 @@ function net.get_device()
     f = io.popen("ip link show | cut -d' ' -f2,9")
     ws = f:read("*a")
     f:close()
-    ws = ws:match("%w+: UP")
+    ws = ws:match("%w+: UP") or ws:match("ppp%w+: UNKNOWN")
     if ws ~= nil then
-        return ws:gsub(": UP", "")
+        return ws:match("(%w+):")
     else
         return "network off"
     end
@@ -42,12 +42,13 @@ end
 local function worker(args)
     local args = args or {}
     local timeout = args.timeout or 2
-    local iface = args.iface or net.get_device()
     local units = args.units or 1024 --kb
     local notify = args.notify or "on"
     local screen = args.screen or 1
     local settings = args.settings or function() end
 
+    iface = args.iface or net.get_device()
+
     net.widget = wibox.widget.textbox('')
 
     helpers.set_map(iface, true)
@@ -55,7 +56,10 @@ local function worker(args)
     function update()
         net_now = {}
 
-        if iface == "" then iface = net.get_device() end
+        if iface == "" or string.match(iface, "network off")
+        then
+            iface = net.get_device()
+        end
 
         net_now.carrier = helpers.first_line('/sys/class/net/' .. iface ..
                                            '/carrier') or "0"
@@ -66,10 +70,10 @@ local function worker(args)
         local now_r = helpers.first_line('/sys/class/net/' .. iface ..
                                            '/statistics/rx_bytes') or 0
 
-        net_now.sent = tostring((now_t - net.last_t) / timeout / units)
+        net_now.sent = (now_t - net.last_t) / timeout / units
         net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ",", ".")
 
-        net_now.received = tostring((now_r - net.last_r) / timeout / units)
+        net_now.received = (now_r - net.last_r) / timeout / units
         net_now.received = string.gsub(string.format('%.1f', net_now.received), ",", ".")
 
         widget = net.widget