Re: Allowing rolling release packages on ELPA

[Stefan Monnier]

Hi Philip,

> presumably on every commit.  The following patch would enable ELPA
> devel-like versioning on ELPA, if enabled with a :rolling-release
> property.  WDYT?

[ I can imagine cases where we may need to explicitly set the "base version"
  from which the rolling-release version is computed, but we can cross
  this bridge when/if we get there.   ]

I would suggest to add a mention in the doc saying that this
is discouraged.
Also, it should say that it is not compatible with `:release-branch`
and we should signal an error if `:release-branch` is set.  Or maybe
make it a special value of `:release-branch` rather than a new keyword?

More importantly, it would be good to notice when that flag is out of
date, i.e. signal an error if the `Version:` has changed when that flag
is set.  Maybe simply require that flag to be set to a string (rather
than just `t`) which is the expected version specified in `Version:` and
then signal an error if they don't agree?


        Stefan