lain/widgets/maildir.lua

105 lines
3.3 KiB
Lua

--[[
Licensed under GNU General Public License v2
* (c) 2013, Luke Bonham
* (c) 2010-2012, Peter Hofmann
--]]
local newtimer = require("lain.helpers").newtimer
local read_pipe = require("lain.helpers").read_pipe
local spairs = require("lain.helpers").spairs
local wibox = require("wibox")
local awful = require("awful")
local util = require("lain.util")
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
-- lain.widgets.maildir
local maildir = {}
local function worker(args)
local args = args or {}
local timeout = args.timeout or 60
local mailpath = args.mailpath or os.getenv("HOME") .. "/Mail"
local ignore_boxes = args.ignore_boxes or {}
local settings = args.settings or function() end
local ext_mail_cmd = args.external_mail_cmd
maildir.widget = wibox.widget.textbox('')
function update()
if ext_mail_cmd ~= nil
then
awful.util.spawn(ext_mail_cmd)
end
-- Find pathes to mailboxes.
local p = io.popen("find " .. mailpath ..
" -mindepth 1 -maxdepth 2 -type d" ..
" -not -name .git")
local boxes = {}
repeat
line = p:read("*l")
if line ~= nil
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.
local mailstring = read_pipe("find " .. line ..
"/new -mindepth 1 -type f " ..
"-not -name '.*' -printf a")
-- Strip off leading mailpath.
local box = string.match(line, mailpath .. "/(.*)")
local nummails = string.len(mailstring)
if nummails > 0
then
boxes[box] = nummails
end
end
until line == nil
p:close()
newmail = "no mail"
-- Count the total number of mails irrespective of where it was found
total = 0
for box, number in spairs(boxes)
do
-- Add this box only if it's not to be ignored.
if not util.element_in_table(box, ignore_boxes)
then
total = total + number
if newmail == "no mail"
then
newmail = box .. "(" .. number .. ")"
else
newmail = newmail .. ", " ..
box .. "(" .. number .. ")"
end
end
end
widget = maildir.widget
settings()
end
newtimer(mailpath, timeout, update, true)
return maildir.widget
end
return setmetatable(maildir, { __call = function(_, ...) return worker(...) end })