Re: Problem understanding merging in SVN

In that case, should the svn merge URL URL form be deprecated, replaced
or be better explained ? I don't think I am unique in the confusion
department :)

Thanks for the help !
Francois

On 23 Apr 2003 09:25:44 -0500, cmpilato@collab.net said:
> "Mats Nilsson" <mats.nilsson@xware.se> writes:
>
> > Hi
> >
> > You fall into a little trap with this use of "svn merge":
> >
> >
> > $ cd trunk
> > $ svn merge file:///repos/trunk file:///repos/branches/B .
> > This merges the changes from "current HEAD of trunk" to "current HEAD of
> > B" into the "HEAD of trunk", which is by definition exactly equivalent
> > to replacing trunk with B.
> >
> > Remember, before this command "HEAD of trunk" now contains "changes made
> > to A", and "HEAD of B" contains "changes made to B". You need to specify
> > a earlier version as the left source.
> >
> > Try either of these:
> >
> > $ cd trunk
> > $ svn merge file:///repos/trunk_at_2 file:///repos/branches/B .
> > C filea
> >
> > $ cd trunk
> > $ svn merge -r 2:4 file:///repos/branches/B .
> > C filea
> >
> > This merges only the changes that happened on branch B (given that B was
> > born in revision 2)
>
> Right. It's easy to forget that file:///repos/trunk is a moving
> target. :-) I personally would recommend that folks use the latter
> form of the merge command the Mats provided. It more accurately
> represents the operation you are trying to perform:
>
> $ svn merge -r N:M file:///repos/branches/B
>
> where N is the revision at which your branch was created (something
> you can determine by running 'svn log --strict
> file:///repos/branches/B'),
> and M is the last interesting revision at which your branch was
> changed (for a branch-per-task development model, this is typically
> 'HEAD'). This form of the command semantically matches what you are
> trying to do -- merge all of the changes that have occured on the
> branch since its inception, into the trunk.
>
>
>

--
  Francois Beausoleil
  Developer of Java Gui Builder
  http://jgb.sourceforge.net/
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