[PATCH] in/out --summary

[Alexis S. L. Carvalho]

Thus spake Thomas Arendsen Hein:
> * Jesse Glick <jesse.glick at sun.com> [20080214 01:22]:
> > Thomas Arendsen Hein wrote:
> > > Additionally I think 'summary' isn't the correct term here. The 
> > > patchutils command with the same feature is named 'combinediff', so 
> > > maybe use that?
> > 
> > Or --onediff? --singlediff?
> 
> --onediff would make a good short option: -1 ;-)
> 
> But I think dropping the 'diff' part altogether would be good: With
> --combined we could show one single combined patch with -p and maybe
> just a list of changed files (something like status or a
> diffstat-like thing) without.

Having a way to print the list of files sounds useful.

One problem with "combined" is that git uses "combined diff format" for
their "diff of a merge" format.  --cumulative?  --coalesced?

Any suggestions for error messages when we can't figure out which
revisions to diff?  Right now I have:

$ hg out --summary ../a
comparing with ../a
searching for changes
there's more than one possible base revision.
please choose one using --base.
base revisions found:
changeset:   1:1638a5e33a45
user:        Alexis S. L. Carvalho <alexis at cecm.usp.br>
date:        Thu Feb 14 20:22:09 2008 -0200
summary:     change foo

changeset:   2:b233f2314db2
parent:      0:dfe52311a539
user:        Alexis S. L. Carvalho <alexis at cecm.usp.br>
date:        Thu Feb 14 20:22:20 2008 -0200
summary:     add bar

abort: unable to find a unique base revision


Which looks way too much like the regular output (not surprising, since
they're using the same changeset printer...).

Alexis