[Nix-dev] DBus and XMonad

[Rodney Lorrimar]

On Wed, Oct 19 2016, Ruben Astudillo wrote:

> On 19/10/16 08:19, Michael Alan Dorman wrote:
>> Rodney Lorrimar <dev at rodney.id.au> writes:
>>>     DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-jp8hFEY1dV,guid=c6e01dc144bda2ae4ca47c84580747a5;unix:abstract=/tmp/dbus-BjlHWWC2xz,guid=3733c1a431ad4cb309cc622a580747a5
>>>
>>> I'm not quite sure why the dbus socket was unavailable, but my solution
>>> was to enable services.dbus.socketActivated in configuration.nix.
>> 
>> I have seen this, too---manifesting as an taffybar not starting---though
>> I was doing some more investigation before I enquired.
>> 
>> I was able to roll back to a version that worked, and the clearly
>> distinguishing feature was that there was only one listing in
>> DBUS_SESSION_BUS_ADDRESS; and indeed, if I set the environment variable
>> when starting taffybar, it works fine.
>> 
>>   $ DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-jp8hFEY1dV,guid=c6e01dc144bda2ae4ca47c84580747a5 taffybar 
>> 
>> Works just fine.
>> 
>> I guess the question I'm left with is whether the error is in the nix
>> configuration providing us with two entries in the variable, or in the
>> haskell dbus package in not handling it properly?
>
> I've noticed this too (and fixed the same way). Before in 16.03
> DBUS_SESSION_BUS_ADDRESS only listed one abstract path, thus I it isn't
> a fault on the haskell side of things.

Hi,

I guess it must have been a change in either dbus-launch or the dbus
daemon.

The current freedesktop.org implementation handles semicolons in
DBUS_SESSION_BUS_ADDRESS. It also adds the user bus socket to the list
of addresses (if it exists). I have reported these two things to the
haskell-dbus author.


Cheers,

Rodney