On Tue, Feb 17, 2015 at 06:44:28AM +0100, Martin Pitt wrote: > Josh Triplett [2015-02-16 17:37 -0800]: > > Seems like systemd could take a lesson from Debian packaging metadata > > here. Every mail transport agent, rather than conflicting with every > > other, has a "Provides: mail-transport-agent" and "Conflicts: > > mail-transport-agent", specifically because they all want to provide > > /usr/sbin/sendmail and (usually) listen on port 25. > > Note that openntpd and chrony both have a Provides: time-daemon, but > ntp doesn't.
Interesting. Any idea why? > > Unit files could do something similar, if systemd had an appropriate > > "virtual service" mechanism. > > It does, it's called "Alias=" (man systemd.unit). Can Alias work together with Conflicts on that alias, such that each of several services all Alias a given virtual service and Conflicts with other providers of that service? If so, what about using that for systemd-timesyncd and all of the other time services, at least once they all have native service files? > We use it for display-manager already (kind of, as we also have to > support the old /etc/X11/default-display-manager config file). Also, post-jessie, do you have any plans to do a one-time migration away from that display manager configuration file, similar to the various one-time migrations away from sysvinit-specific config files like /etc/default/rcS? - Josh Triplett -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
