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-- Authors: Mario García H. <drosophila@nmental.com>
-- License: GPL, version 2
-- Last Changed: 2006-11-18
--
--------------------------------------------------------------------------------------------
--
-- PURPOSE:
-- Flexible Maildir monitor with configurable alarms and optional launcher for external
-- commands. The name "nmaild" stands for "aNy-mail-directories".
--
--------------------------------------------------------------------------------------------
--> Meters: %nmaild_new, %nmaild_read, %nmaild_allnew and %nmaild_allread <--
--------------------------------------------------------------------------------------------
--
-- If you do not customize default settings, this script detects the environment
-- variable "$MAILDIR". If that variable is not set, then ~/Maildir will be used as
-- default path. Otherwise, %nmaild_new and %nmaild_read are counters for new and
-- read emails into the first maildir found in settings. %nmaild_allnew and
-- %nmaild_allread are counters of new and read emails into the other mail directories
-- specified.
--
-- (Example: ~/Maildir/home, ~/Maildir/work, ~/Maildir/forum_lists, ~/Mail/FSCK,
-- spam, etc. where ~Maild/home is the main directory, others are counted as all*)
--
-- USAGE:
-- * If the directory ~/.ion3 does not exist create it and copy cfg_statusbar.lua
-- (the file is located somewhere in your /usr/share/ion3 or /usr/local/share/ion3
-- or /etc/X11/ion3 depending on ion3 installation). We need that file located on
-- our $HOME to edit and override Ion3 system configurations.
--
-- ** The file should look like this:
-- template = "[Mail %nmaild_new:%nmaild_all|%nmaild_allnew%nmaild_allread]"
--
-- After you restart ion3 (killall -USR1 ion3) or (session/restart on Ion menu),
-- the statusbar will look like this:
--
-- [Mail: 1:1|4:23] where |1:1| is meaning one mail new and one mail read in first dir.
--
-- You can change this script behavior by writting something like this in
-- cfg_statusbar.lua:
--
-----> CONFIGURATION EXAMPLE: ------------------------------------------------------------
--
-- nmaild = { Values not in config will be assumed from defaults
-- update_interval = 15*1000, --> Miliseconds (default is 15 seconds)
-- check = { --> Put here the list of maildirs to 'check' for.
-- "~/Maildir", Please, pay attention to the logical structure.
-- "~/Maildir/work",
-- "~/Maildir/copies",
-- "~/Security/spam",
-- "~/Maildir/lists",
-- "/xmail/office/susan",
-- "/Mail/common",
-- },
--
-- new = {"critical", 1}, --> Alarms: For new, read, allnew and allread.
-- read = {"important", 5}, --------------------------
-- allnew = {"critical", 5}, Syntax: mailfilter = {"hint", value},
-- allread = {"important", 10},
-- exec_on_new = "play ~/mew_wmail.mp3" --> Execute something on new email arrival.
-- If you want to deactivate exec_on_new,
-- just erase it from settings.
-- If you need to specify very complex commands
-- the best way is to replace the quotes for
-- [[ at start and ]] at the end.
--
-- }, --> Take care, write correct config endings.
--
-- Meanings:
-- --------------------------
-- "hint" means the color of alarm: If you are
-- daredevil, edit the file lookcommon_XXX.lua
-- (You must have a copy into ~/.ion3 directory)
-- to change colors or to add more (xcolors).
-- If 'value' reaches (is >= than) the number
-- you put here, alarms will be displayed !!.
--
-------------------------------------------------------------------------------------------
--
-- Internal cycles are provided by string.gsub() so, hopefully, we avoid unnecesary
-- use of lines and variables. This script will do only four (4) callings, no matters
-- the number of maildirs specified in cfg_statusbar.
--
-- VERSION: 1.a
--
-- LAST CHANGES:
-- Added "exec_on_new" function. You don't need to use it, but it does more fancy the
-- script. Now, it can do audio advices, launch your email client or show [g-k-x]message
-- when new emails are detected.
--
-- TO-DO:
-- To show the amounts of disk used. If someone finds interesting that addition...
--
-- LICENCE:
-- GPL2 Copyright (C) 2006 Mario García H.
-- See http://www.gnu.org/licenses/gpl.html to read complete licence)
--
-- T.STAMP: sat nov 18 01:03:50 COT 2006
--
-- CONTACT:
-- <drosophila (at) Nmental (dot) com>
--
------ DEFAULT CONFIGURATION : -----------------------------------------------------------
local nmaild_timer
local last_count = { new = 0, allnew = 0 }
local defaults = {
update_interval = 5000,
check = { os.getenv("MAILDIR") or "~/Maildir" },
exec_on_new = false, --> Use this to play sounds , to execute an
new = { "critical", 1 }, -- email client, etc. on new email arrival.
read = { "important", 5 },
allnew = { "critical", 5 },
allread = {"important", 20 }
}
local settings = table.join(statusd.get_config("nmaild"), defaults)
------ SCRIPT : --------------------------------------------------------------------------
local function exec_on_new()
if settings.exec_on_new then
os.execute(settings.exec_on_new.." 2>/dev/null &")
end
return
end
local get_count = function(nmaild, label)
local read_dirs = io.popen("du -a " ..nmaild.. " 2>/dev/null", "r")
local count = read_dirs:read("*a"); read_dirs:close()
_, count = string.gsub(count, "%d+%.%C+%.%C+", "") --> Simple filter.
local hint = count >= settings[label][2] and settings[label][1] or "normal"
statusd.inform("nmaild_" ..label, tostring(count))
statusd.inform("nmaild_" ..label.. "_hint", hint)
if (label == "new" or label == "allnew") and (count > last_count[label]) then
last_count[label] = count
exec_on_new()
return
end
if count == 0 and (label == "new" or label == "allnew") then
last_count[label] = 0
return
end
end
local function plan_count()
get_count(settings.check[1] .."/new", "new"); coroutine.yield()
get_count(settings.check[1] .."/cur", "read"); coroutine.yield()
get_count(table.concat(settings.check, "/new ", 2) .."/new", "allnew"); coroutine.yield()
get_count(table.concat(settings.check, "/cur ", 2) .."/cur", "allread")
return
end
local function update_nmaild()
local threads = coroutine.create(plan_count) --> Trying to avoid read bottlenecks ,>
while coroutine.resume(threads) do end --> Without threads the timer will die :(
nmaild_timer:set(settings.update_interval, update_nmaild)
end
nmaild_timer = statusd.create_timer()
update_nmaild()
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