fs: asynchronous

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

diff --git a/widgets/maildir.lua b/widgets/maildir.lua
index 12f3545793548716000982d3767e24dcbd37e9e9..2f435b3294aafae65f4cfb5526e87d511d3b1d28 100644 (file)
--- a/widgets/maildir.lua
+++ b/widgets/maildir.lua
@@ -7,23 +7,18 @@
                                                   
 --]]
 
                                                   
 --]]
 

-local newtimer        = require("lain.helpers").newtimer
-local read_pipe       = require("lain.helpers").read_pipe
-local spairs          = require("lain.helpers").spairs
+local awful        = require("awful")
+local wibox        = require("wibox")
+local helpers      = require("lain.helpers")

 
 

-local wibox           = require("wibox")
+local io           = { popen  = io.popen }
+local os           = { getenv = os.getenv }
+local string       = { format = string.format,
+                       match  = string.match }

 
 

-local util            = require("lain.util")
+local setmetatable = setmetatable

 
 

-local io              = { popen  = io.popen }
-local os              = { getenv = os.getenv }
-local pairs           = pairs
-local string          = { len    = string.len,
-                          match  = string.match }
-
-local setmetatable    = setmetatable
-
--- Maildir check
+-- Maildir check (synchronous)

 -- lain.widgets.maildir
 local maildir = {}
 
 -- lain.widgets.maildir
 local maildir = {}
 


@@ -35,59 +30,46 @@ local function worker(args)
     local settings     = args.settings or function() end
     local ext_mail_cmd = args.external_mail_cmd
 
     local settings     = args.settings or function() end
     local ext_mail_cmd = args.external_mail_cmd
 

-    maildir.widget = wibox.widget.textbox('')
+    maildir.widget = wibox.widget.textbox()

 
     function update()
 
     function update()

-        if ext_mail_cmd ~= nil
-        then
-            awful.util.spawn(ext_mail_cmd)
-        end
+        if ext_mail_cmd then awful.spawn(ext_mail_cmd) end
+

         -- Find pathes to mailboxes.
         -- Find pathes to mailboxes.

-        local p = io.popen("find " .. mailpath ..
-                           " -mindepth 1 -maxdepth 2 -type d" ..
-                           " -not -name .git")
+        local p = io.popen(string.format("find %s -mindepth 1 -maxdepth 2 -type d -not -name .git", mailpath))

         local boxes = {}
         repeat
             line = p:read("*l")
         local boxes = {}
         repeat
             line = p:read("*l")

-            if line ~= nil
-            then
+            if line then

                 -- Find all files in the "new" subdirectory. For each
                 -- file, print a single character (no newline). Don't
                 -- match files that begin with a dot.
                 -- Afterwards the length of this string is the number of
                 -- new mails in that box.
                 -- Find all files in the "new" subdirectory. For each
                 -- file, print a single character (no newline). Don't
                 -- match files that begin with a dot.
                 -- Afterwards the length of this string is the number of
                 -- new mails in that box.

-                local mailstring = read_pipe("find " .. line ..
-                                    "/new -mindepth 1 -type f " ..
-                                    "-not -name '.*' -printf a")
+                local mailstring = helpers.read_pipe(string.format("find %s /new -mindepth 1 -type f -not -name '.*' -printf a", line))

 
                 -- Strip off leading mailpath.
 
                 -- Strip off leading mailpath.

-                local box = string.match(line, mailpath .. "/(.*)")
-                local nummails = string.len(mailstring)
-                if nummails > 0
-                then
+                local box      = string.match(line, mailpath .. "/(.*)")
+                local nummails = #mailstring
+
+                if nummails > 0 then

                     boxes[box] = nummails
                 end
             end
                     boxes[box] = nummails
                 end
             end

-        until line == nil
-
+        until not line

         p:close()
 
         p:close()
 

-        newmail = "no mail"
-        -- Count the total number of mails irrespective of where it was found
-        total = 0
+        local newmail = "no mail"
+        local total = 0

 
 

-        for box, number in spairs(boxes)
-        do
+        for box, number in helpers.spairs(boxes) do

             -- Add this box only if it's not to be ignored.
             -- Add this box only if it's not to be ignored.

-            if not util.element_in_table(box, ignore_boxes)
-            then
+            if not helpers.element_in_table(box, ignore_boxes) then

                 total = total + number
                 total = total + number

-                if newmail == "no mail"
-                then
-                    newmail = box .. "(" .. number .. ")"
+                if newmail == "no mail" then
+                    newmail = string.format("%s(%s)", box, number)

                 else
                 else

-                    newmail = newmail .. ", " ..
-                              box .. "(" .. number .. ")"
+                    newmail = string.format("%s, %s(%s)", newmail, box, number)

                 end
             end
         end
                 end
             end
         end


@@ -96,8 +78,9 @@ local function worker(args)
         settings()
     end
 
         settings()
     end
 

-    newtimer(mailpath, timeout, update, true)
-    return maildir.widget
+    helpers.newtimer(mailpath, timeout, update, true)
+
+    return setmetatable(maildir, { __index = maildir.widget })

 end
 
 return setmetatable(maildir, { __call = function(_, ...) return worker(...) end })
 end
 
 return setmetatable(maildir, { __call = function(_, ...) return worker(...) end })