LightDM - Jan 2019 - Environement variable : PATH

Hey,
I'm trying to understand how "system wide" arguments are set. And
I'm
kind of stuck. 
I don't get how lightdm does to get his PATH variable once logged as
user - I'm on debian stretch (lightdm 1.18.3-1).

I can remove everything in /etc/login.defs at ENV_PATH and
in /etc/profile and still... Logging in lightdm I
still get
"PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games" - how
is it possible ?

There is NO mention of "/usr/local/games" in all /etc (I did a grep
-re
on it to be sure).

How does it work ? I thought every loggin mecanism had to use "login"
which relied on /etc/login.defs ? Is it hardcoded somewhere in lightdm ?


Thanks anyway for the work, I do love this piece of softare compared to
all others DM o/

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On Fri, 2019-01-04 at 14:40 +0100, johann wrote:
> How does it work ? I thought every loggin mecanism had to use
"login"
> which relied on /etc/login.defs ? Is it hardcoded somewhere in lightdm ?
If PATH is set on LightDM environment, it's propagated to the session login:

https://github.com/CanonicalLtd/lightdm/blob/master/src/seat.c#L383

On Debian we also patch it to make sure a PATH is set even if we don't have
it
in the LightDM process environment, in which case we set it to the Debian
default (which includes /usr/games):

https://sources.debian.org/src/lightdm/1.18.3-1/debian/patches/01_set-default-path.patch/

Hope that helps.

Regards,
- -- 
Yves-Alexis
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