[Patch] Support for multiple revisions for diff command

[Michael Ellerman]

On Wed, 11 May 2005 10:29, John A Meinel wrote:
> > It's a little counter intertuitive (perhaps) but to get the diff for
> > revno 440 you have to run 'bzr diff -r 439 -r2 440'.
>
> Why not use one of the other syntaxes. Such as
>
> bzr diff ./@439 ./@440
> bzr diff @439 @440
> (mabye bzr diff 439 440 but these could be filenames)
> bzr diff -r 439:440
> etc.

Well maybe. I don't really think any of those syntaxes are better than just 
specifying two revision numbers with regular options. Bzr is supposed to be a 
crack-free zone remember ;D

Re a "show-changeset" command (your other mail). I've got a patch to do rev 
numbers for log messages, but I'm not sure I like it.

To get the revision message for revno 440 you specify 'bzr log -r 440 -r2 
441'. But to get the diff that is associated with that comment you need to do 
'bzr diff -r 439 -r2 440', which when you think about it makes sense in terms 
of revisions, but makes your head hurt if you're thinking in terms of 
changesets.

That's a long way of saying I might just implement a 'show-changeset' command 
that fudges the numbers for you so that it does the right thing for someone 
thinking in terms of changesets.

cheers

-- 
Michael Ellerman
IBM OzLabs

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