[00:04:31] <AaronSchulz>	 MaxSem: hrm, I'd prefer a "membership X will expire soon"  hourly chron that warns beforehand (via echo events). For very short-term groups, a delayed job could be used.
[00:05:33] <MaxSem>	 AaronSchulz, basically that's what I'm doing in https://gerrit.wikimedia.org/r/#/c/350500/
[00:05:55] <MaxSem>	 I can think of a billion ways tis could go wrong though
[00:07:10] <AaronSchulz>	 thought I guess if the message is "will expire in one hour", then you may as well just trigger it for 1 hour groups rather than even use a job.
[00:07:15] <MaxSem>	 so what's wrong about hooks in transactions
[00:07:22] <AaronSchulz>	 I'm still not sure notification are the best way to present this.
[00:07:58] <AaronSchulz>	 Ideally, it might be better to do it permission errors instead (but that requires some GUI cooperation among extensions).
[00:08:01] <MaxSem>	 it needs 2 types: forewarning (say, couple of weeks) and "poof, tis gone"
[00:14:37] <AaronSchulz>	 it would also probably be a good idea to have non-chron purges only purge stuff that has been expired for days. Delayed jobs would need to do a CAS style check on gu_expiry in case they are no longer relevant (due to manual removal 20 minutes before expiry or something).
[01:19:56] <c>	 bd808: my OCD got the better of me!