Re: vc-revert broken for Subversion files

[Richard Stallman <rms@gnu.org>]

       * vc-hooks.el: Generalize stay-local-p to operate on lists of
       files.  Change two keybindings to point to new function names.
       * vc-arch.el, vc-bzr.el, vc-cvs.el, vc-hg.el, vc-mcvs.el, vc-rcs.el,
       vc-sccs.el, vc-svn.el: These now implement the NewVC-fileset.
       * vc.el: Adapted for NewVC-fileset, but no functional changes yet.

    yes.

    unfortunately, even w/ this ChangeLog entry, i am unable to determine the
    intent (sense) of the "generalization".  my doubt is as follows:

I have asked him to put in a clear and detailed change log entry.

    when applied to many files, i can imagine two equally valid policies:
    (a) if any file of the list is stay-local-p, enable optimizations.
    (b) if all files of the list are stay-local-p, enable optimizations.

    as is (just checked in), the code supports (a) but not (b).  could
    maintainers of client code give this some thought, and confirm or revise
    the code accordingly?  it comes down to "any" vs "all" semantics, of
    which i'm slightly paranoid, having been bitten in a previous life...

    the more i think about it, the more (b) would make sense (AND gate),
    since optimizations may not be possible if any one file in the list is
    NOT stay-local-p.  this boolean stuff is (simply ;-) weird...

Could you write to him and Stefan to discuss the question?