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Re: New diff syntax? (see issue #1142)

From: <cmpilato_at_collab.net>
Date: 2003-05-16 01:40:52 CEST

Greg Hudson <ghudson@MIT.EDU> writes:

> Long, long ago, I raised two proposals for the svn diff syntax. See:
> <http://subversion.tigris.org/servlets/ReadMsg?list=dev&msgNo=14290>.
> There was the "smart" proposal and the "dumb" proposal; the "dumb"
> proprosal was genuinely pretty dumb and should never have received any
> consideration. But I believe there was consensus at that time on the
> "smart" proposal, which was:
> Iterative case: svn diff [-r {N|N:M}] TARGET ...
> Comparative case: svn diff TARGET TARGET
> In the comparative case, TARGET can be URL@REV as well as just URL or
> WCPATH, of course. To resolve the ambiguous case where two targets
> are specified and no -r option is given:
> If both targets are wc paths, assume iterative case.
> Otherwise, assume comparative case.

-0.99. This kind of "document around the edge case" is bound to bite
us. The minute we make this change, someone's going to complain about
how they tried to run 'svn diff trunk/foo tags/0.14/foo' and didn't
see what they expected.

That said, I see the benefit of having an iterative case. Maybe the
thing to do here is to spawn a new subcommand:

   svn diff [TARGET [TARGET ...]] - hits the most common use-case,
                                      iterative, showing local mods only.

   svn compare TARGET1[@REV1] TARGET[@REV2] - takes care of the
                                               comparative case.

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Received on Fri May 16 01:45:06 2003

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