Re: Merging in Subversion 1.5 (was: Re: Using git to track my PhD thesis, couple of questions)

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On Fri, 2009-08-28 at 08:12 -0700, Jakub Narebski wrote:
>  * svn:mergeinfo contains _per-file_ merge info, so it is much, much
>    more "chatty" than Git multiple parents.

It can.  But more often, if you're merging complete paths, you will get
complete revision ranges.

See eg
https://trac.parrot.org/parrot/browser/trunk

Note how trac is also hiding the branches that were subsequently deleted
from the mergeinfo ticket.

>  * The command to merge trunk into branch is different from command to
>    merge branch into trunk.

This is a caveat of url-based branches.

> Also IIRC there is warning (well, at least there was in Subversion 1.5
> release notes) that merge tracking doesn't work entirely correctly in
> the face of criss-cross merges (multiple merge bases) and renaming
> (although I do hope that they fixed problem with silent corruption if
> there is rename during merge).

Not sure about that one.  I also heard - unconfirmed - that things start
to go awry if you start branching off branches and merging around the
place.  But if that happens it's likely a bug rather than a design flaw
(I think).

Sam

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