You have been subscribed to a public bug by Laércio de Sousa (lbssousa):
Now that LightDM now supports globbing in seat config sections, it would
be nice if it supports wildcard substitution in seat property values,
too. For example, this 2-seat configuration:
[Seat:seat0]
xserver-config=xorg.conf.seat0
[Seat:seat1]
xserver-config=xorg.conf.seat1
could be condensed to this one:
[Seat:seat*]
xserver-config=xorg.conf.%s
where the wildcard %s should be replaced with corresponding seat name.
Some questions asked by Robert Ancell about this feature:
- Does the wildcard work in all config values or just command?
Yes. The most common use case I can see is seat-name substitution in
properties like xserver-command, xserver-config, xserver-layout, etc.
- Could this wildcard be a valid value in other cases and will those values now
have to be escaped (potentially breaking existing config)? For this reason, we
should use a bigger token, e.g. "%(seat-name)" which is both more
self-explanatory and less likely to collide with something else.
- Are there other values we should give?
Good point. Adoption of bigger tokens like %(seat-name) opens the
possibility of supporting wildcards for other seat properties, e.g.
%(autologin-user), although I can't see any practical use of this.
- What are the escape rules if you need a literal "%s"?
We could use a doubled %% as a escape rule for literal "%".
** Affects: lightdm
Importance: Undecided
Status: New
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Support wildcard substitution in seat property values
https://bugs.launchpad.net/bugs/1364350
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