Respawn limit for runsv?

[Lars Kellogg-Stedman <lars@oddbit.com>]

Howdy,

Has anyone investigated adding some sort of respawn limiter to runit?  I 
figure that if a program is crashing immediately every time it runs, it 
probably doesn't need to be restarted -- which just floods the logs with 
error message, perhaps overwriting critical log data about what 
precipitated the problem in the first place.

I'm thinking of some sort of setting that will down a service if it dies 
more than m times in n seconds.  This would be controlled via a file in 
the service directory...maybe we can introduce a 'config' file, similar 
to what svlogd uses, to allow per-service configuration?

Alternatively, this could perhaps be farmed out to a wrapper program, so 
that a run script might look like:

  exec respawn_wrapper ...

Any thoughts?