There is a way to enable extglob in dunstrc file

[Rodrigo-Barros]

Hi, this is not a bug, just a question to know if is there a way to enable extglob in dunstrc file, I really would to know how enable, I put an spefic sound for all notifications, but some apps have your own notification sound, and when is a notification is fired for these apps play two songs at same time.

I trying to make of following way:

[playsound]
    icon = "dialog-information"
    desktop_entry = "!(org.gnome.clocks)"
    script = /home/rodrigo/.local/bin/notification-sound # custom script path

and do not works.

or who knows made a blacklist for spefic apps, I know this could be hard, so would be nice if extglob works :)

[bebehei]

Firstly, we process the values of the rules via fnmatch. man fnmatch(3am):

The fnmatch extension provides an AWK interface to the fnmatch(3) routine.

I'm not that familiar with AWK, but maybe you are able to do it. If successful, please report!

---

As a workaround, you could filter inside the script. Watch the parameters:

• ${1}: The appname
• ${2}: the summary
• ${3}: the full body
• ${4}: the icon
• ${5}: the urgency level

With special foo, you could work around this. However there is no desktop_entry yet available as a script parameter.

[Rodrigo-Barros]

@bebehei I am not familiar with AWK too, then I choose the second one, and the result was Great (at least untill now :) the most difficulty was choose which parameters to use for stop play the sound, And I almost forget thanks these tips help me a lot.

If anyone want make a similar feel free to modify my humbly script

#!/usr/bin/python
from os import system
from sys import argv
blacklist = ["Tempo esgotado!", "Thunderbird"]
play_sound = 1
system("echo %s" % argv[2] ) # this line is for debug proposes only, comment if necessary
try:
    if [ argv[2] != "" ]:
        summary = argv[2]
except:
    summary = ""

if  summary != "" :
    for i in blacklist:
        if summary == i:
            play_sound = 0

if play_sound == 1:
    system("cvlc --play-and-exit /home/rodrigo/Music/xbox-notification-sound-2018.mp3")

[bebehei]

Which dunst version do you use? 1.4.x or 1.3.x? Master?

[Rodrigo-Barros]

I'm using version 1.4.1 (2019-07-03).

[bebehei]

Shit. After reading the manpage more carefully, I see the problem. !(pattern) is a GNU extension and we disabled gnu extensions in #407.

[bebehei]

@tsipinakis shall we enable the _GNU_SOURCE again while loading fnmatch.h? I assume non-GNU systems, this won't change anything, but for GNU systems, we enable negative matching. (IMHO an important feature to have matching patterns).

[tsipinakis]

I'm fine with that though it'll be a challenge on how to document that, a config file would work on one system but break on another depending on libc extension support - not exactly easy to debug from a user perspective.

[tsipinakis]

As mentioned in #658, this works for scripts but not for any other attributes like overriding the icon. Given the usefulness I now think it's worth the trouble to enable GNU extensions just for fnmatch.

I'll look into it tomorrow.

[dylantjb]

system("cvlc --play-and-exit /home/rodrigo/Music/xbox-notification-sound-2018.mp3")

Argv[2] did not work for me but argv[1] did.

notifications.py

#!/usr/bin/python
from os import system
from sys import argv

blacklist = ["discord"]

if argv[1] not in blacklist:
    system("paplay ~/path/to/alert.wav")

dunstrc

[play_sound]
    summary = "*"
    script = ~/path/to/notifications.py

[Rodrigo-Barros]

system("cvlc --play-and-exit /home/rodrigo/Music/xbox-notification-sound-2018.mp3")

Argv[2] did not work for me but argv[1] did.

notifications.py

#!/usr/bin/python
from os import system
from sys import argv

blacklist = ["discord"]

if argv[1] not in blacklist:
    system("paplay ~/path/to/alert.wav")

dunstrc

[play_sound]
    summary = "*"
    script = ~/path/to/notifications.py

Hey thank you @dylantjb You improve the readable of my script a lot, you can add these lines:
system("echo %s" % argv[2] )
in notifications.py to debug and see if the appname or summary matches with you want.

[fwsmit]

It is recommended to use environment variables instead of the arguments passed to the scripts as they may be deprecated soon. (comments in #811).

[dylantjb]

In that case I'll provide an updated script for reference.

notifications.sh

#!/usr/bin/env bash

blacklist=( "discord" "your app here" )

[[ ! " ${blacklist[@]} " =~ " $DUNST_APP_NAME " ]] && aplay "/path/to/sound"

dunstrc

[play_sound]
    summary = "*"
    script = "/path/to/notifications.sh"

Should something like this be added to the wiki?

[fwsmit]

Should something like this be added to the wiki?

Yeah that would be great!

[fwsmit]

Regex is implemented in #1017. It should be better than extglob.