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layouts: geometry computation aligned to v4.0 API; fixes #267
[etc/awesome.git] / widgets / maildir.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013,      Luke Bonham                
6       * (c) 2010-2012, Peter Hofmann              
7                                                   
8 --]]
9
10 local awful        = require("awful")
11 local wibox        = require("wibox")
12 local helpers      = require("lain.helpers")
13 local io           = { popen  = io.popen }
14 local os           = { getenv = os.getenv }
15 local string       = { format = string.format,
16                        match  = string.match }
17 local setmetatable = setmetatable
18
19 -- Maildir check (synchronous)
20 -- lain.widgets.maildir
21 local maildir = helpers.make_widget_textbox()
22
23 local function worker(args)
24     local args         = args or {}
25     local timeout      = args.timeout or 60
26     local mailpath     = args.mailpath or os.getenv("HOME") .. "/Mail"
27     local ignore_boxes = args.ignore_boxes or {}
28     local settings     = args.settings or function() end
29     local cmd          = args.cmd
30
31     function maildir.update()
32         if cmd then helpers.async({ awful.util.shell, "-c", cmd }, function() end) end
33
34         -- Find pathes to mailboxes.
35         local p = io.popen(string.format("find %s -mindepth 1 -maxdepth 2 -type d -not -name .git", mailpath))
36         local boxes = {}
37         repeat
38             line = p:read("*l")
39             if line then
40                 -- Find all files in the "new" subdirectory. For each
41                 -- file, print a single character (no newline). Don't
42                 -- match files that begin with a dot.
43                 -- Afterwards the length of this string is the number of
44                 -- new mails in that box.
45                 local mailstring = helpers.read_pipe(string.format("find %s /new -mindepth 1 -type f -not -name '.*' -printf a", line))
46
47                 -- Strip off leading mailpath.
48                 local box      = string.match(line, mailpath .. "/(.*)")
49                 local nummails = #mailstring
50
51                 if nummails > 0 then
52                     boxes[box] = nummails
53                 end
54             end
55         until not line
56         p:close()
57
58         local newmail = "no mail"
59         local total = 0
60
61         for box, number in helpers.spairs(boxes) do
62             -- Add this box only if it's not to be ignored.
63             if not helpers.element_in_table(box, ignore_boxes) then
64                 total = total + number
65                 if newmail == "no mail" then
66                     newmail = string.format("%s(%s)", box, number)
67                 else
68                     newmail = string.format("%s, %s(%s)", newmail, box, number)
69                 end
70             end
71         end
72
73         widget = maildir.widget
74         settings()
75     end
76
77     maildir.timer = helpers.newtimer(mailpath, timeout, maildir.update, true, true)
78
79     return maildir
80 end
81
82 return setmetatable(maildir, { __call = function(_, ...) return worker(...) end })