awesome: Show email counts in first wibox

.config/awesome/rc.lua

@@ -8,10 +8,13 @@ local beautiful = require("beautiful")
 -- Notification library
 local naughty = require("naughty")
 local menubar = require("menubar")
+local lfs = require("lfs")
 
 awful.rules = require("awful.rules")
 require("awful.autofocus")
 
+local maildir_base = os.getenv("HOME") .. "/documents/mail/"
+
 function ror(program, cls)
    local rorfunc = function ()
       local matcher = function (c)
@@ -31,6 +34,25 @@ function ror_combo(mod, key, program, class)
                 function () awful.util.spawn(program) end))
 end
 
+function new_mail(maildir)
+   local count = 0
+
+   for file in lfs.dir(maildir_base .. maildir .. "/new") do
+      if file ~= "." and file ~= ".." then
+         count = count + 1
+      end
+   end
+
+   for file in lfs.dir(maildir_base .. maildir .. "/cur") do
+      if string.sub(file, -1) ~= "S" and file ~= "."
+         and file ~= ".." then
+         count = count + 1
+      end
+   end
+
+   return count
+end
+
 ----- Error handling
 -- Check if awesome encountered an error during startup and fell back
 -- to another config (This code will only ever execute for the
@@ -135,12 +157,32 @@ mypromptbox = {}
 mylayoutbox = {}
 mytaglist = {}
 mytasklist = {}
+mymaillist = wibox.widget.textbox()
+mymaillist:set_text(
+   string.format(" ryu: %d gmail: %d aethon: %d 9f: %d",
+                 new_mail('ryuslash.org/inbox'),
+                 new_mail('gmail/inbox'),
+                 new_mail('aethon/inbox'),
+                 new_mail('ninthfloor/inbox')))
+mymaillisttimer = timer({ timeout = 60 })
+mymaillisttimer:connect_signal(
+   "timeout",
+   function ()
+      mymaillist:set_text(
+         string.format(" ryu: %d gmail: %d aethon: %d 9f: %d",
+                       new_mail('ryuslash.org/inbox'),
+                       new_mail('gmail/inbox'),
+                       new_mail('aethon/inbox'),
+                       new_mail('ninthfloor/inbox')))
+   end)
+mymaillisttimer:start()
 
 for s = 1, screen.count() do
     -- Create a promptbox for each screen
     mypromptbox[s] = awful.widget.prompt()
-    -- Create an imagebox widget which will contains an icon indicating which layout we're using.
+    -- Create an imagebox widget which will contains an icon
-    -- We need one layoutbox per screen.
+    -- indicating which layout we're using. We need one layoutbox per
+    -- screen.
     mylayoutbox[s] = awful.widget.layoutbox(s)
     -- Create a taglist widget
     mytaglist[s] = awful.widget.taglist(
@@ -161,7 +203,10 @@ for s = 1, screen.count() do
 
     -- Widgets that are aligned to the right
     local right_layout = wibox.layout.fixed.horizontal()
-    if s == 1 then right_layout:add(wibox.widget.systray()) end
+    if s == 1 then
+       right_layout:add(mymaillist)
+       right_layout:add(wibox.widget.systray())
+    end
     right_layout:add(mytextclock)
     right_layout:add(mylayoutbox[s])
 
@@ -251,7 +296,7 @@ globalkeys = awful.util.table.join(
     ror_combo({ modkey }, "c", 'urxvt', 'URxvt'),
     ror_combo({ modkey }, "w", 'conkeror', 'Conkeror'),
     awful.key({ "Control", "Mod1" }, "l",
-             function () awful.util.spawn('i3lock -c 000000') end))
+              function () awful.util.spawn('i3lock -c 000000') end))
 
 clientkeys = awful.util.table.join(
    awful.key({ modkey, }, "f",