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Updated Layouts (markdown)
[etc/awesome.git] / widgets / maildir.lua
1 --[[
2                                                   
3      Licensed under GNU General Public License v2 
4       * (c) 2013,      Luke Bonham                
5       * (c) 2010-2012, Peter Hofmann              
6                                                   
7 --]]
8
9 local newtimer        = require("lain.helpers").newtimer
10
11 local wibox           = require("wibox")
12
13 local io              = io
14 local os              = { getenv = os.getenv }
15 local pairs           = pairs
16 local string          = { len    = string.len,
17                           match  = string.match }
18 local table           = { sort   = table.sort }
19
20 local setmetatable    = setmetatable
21
22 -- Maildir check
23 -- lain.widgets.maildir
24 local maildir = {}
25
26 local function worker(args)
27     local args         = args or {}
28     local timeout      = args.timeout or 60
29     local mailpath     = args.mailpath or os.getenv("HOME") .. "/Mail"
30     local ignore_boxes = args.ignore_boxes or {}
31     local settings     = args.settings or function() end
32
33     maildir.widget = wibox.widget.textbox('')
34
35     function update()
36         -- Find pathes to mailboxes.
37         local p = io.popen("find " .. mailpath ..
38                            " -mindepth 1 -maxdepth 1 -type d" ..
39                            " -not -name .git")
40         local boxes = {}
41         repeat
42             line = p:read("*l")
43             if line ~= nil
44             then
45                 -- Find all files in the "new" subdirectory. For each
46                 -- file, print a single character (no newline). Don't
47                 -- match files that begin with a dot.
48                 -- Afterwards the length of this string is the number of
49                 -- new mails in that box.
50                 local np = io.popen("find " .. line ..
51                                     "/new -mindepth 1 -type f " ..
52                                     "-not -name '.*' -printf a")
53                 local mailstring = np:read("*all")
54
55                 -- Strip off leading mailpath.
56                 local box = string.match(line, mailpath .. "/*([^/]+)")
57                 local nummails = string.len(mailstring)
58                 if nummails > 0
59                 then
60                     boxes[box] = nummails
61                 end
62             end
63         until line == nil
64
65         table.sort(boxes)
66
67         newmail = "no mail"
68
69         local count = 0
70         for box, number in pairs(boxes)
71         do
72             count = count + 1
73             -- Add this box only if it's not to be ignored.
74             if not util.element_in_table(box, ignore_boxes)
75             then
76                 if newmail == ""
77                 then
78                     newmail = box .. "(" .. number .. ")"
79                 else
80                     newmail = newmail .. ", " ..
81                               box .. "(" .. number .. ")"
82                 end
83             end
84         end
85
86         widget = maildir.widget
87         settings()
88     end
89
90     newtimer(mailpath, timeout, update, true)
91     return maildir.widget
92 end
93
94 return setmetatable(maildir, { __call = function(_, ...) return worker(...) end })