Handle missing DBUS_SESSION_BUS_ADDRESS

[rnhmjoj]

It appears systemd and dbus are moving away from setting DBUS_SESSION_BUS_ADDRESS by default. It was actually removed for some time but it had to be reintroduced because many software still rely on it.

Could you handle the case when it's not set?

[rblaze]

What's the best way to test this?

[rblaze]

Disregard this, I understand the issue now.

connectSession will fail without this env variable. connectSystem will fallback to unix:path=/var/run/dbus/system_bus_socket.

[rblaze]

It's up to app developers to handle errors, use dbus-launch or connect to a specific address using connect function. Nothing that library should do by itself.

[rnhmjoj]

It's up to app developers to handle errors

But should connectSession throw an error here? I think it should try connecting to the default socket XDG_RUNTIME_DIR/bus before giving up.

[rblaze]

Good point, I'll add a fallback.

[rblaze]

Fixed in 8098692, dbus-1.2.13 published

[rnhmjoj]

Thank you!