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Re: Moving C to its own directory (was Re: ObjC tree inlining)

From: Joseph S. Myers <jsm28_at_cam.ac.uk>
Date: 2001-11-22 00:15:54 CET

On Wed, 21 Nov 2001, Branko [ISO-8859-2] Čibej wrote:

> >When they get to beta I may do some trial conversions of our existing
> >repository, time permitting.
> >
> We'll need a converter for that. cvs2svn is planned (for Beta, I think),
> but it's not very far along. Volunteers are welcome. :-)

Can the Subversion version model handle multiple past development
mainlines merging into one future mainline?

We have at present the separate "gcc" and "src" repositories, which share
some files - and some people would like to merge these into a single
repository, but it would be desirable still to be able to check out either
past tree on any tag or date from before the merge. If Subversion
supports this, conversion to Subversion would be a natural time to do the
merge (since people would need to replace their working directories anyway
at that time).

That is, we'd have

                      gcc 3.1 branch ---
----- gcc mainline ----------\
                              ------ merged single mainline in SVN
----- src mainline ----------/
                      binutils 2.12 branch ---

and would want all of the merged single mainline and the past branches
from the individual trees pre-merge to work. (Presuming that before such
a merge, all differences in common files are resolved and they are
maintained in sync - though files deleted in the past in one or both trees
might differ.)

Can this be done in Subversion? If not, it might still be the appropriate
time to merge the repositories - but starting from only one repository's
,v file for each file that is or has been in both, putting copies of both
repositories up for FTP in the appropriate old-releases directories (as
should be done anyway at the time of the change), and manually touching up
the files taken from one tree to have appropriate versions for the
branches active in the other tree.

Joseph S. Myers
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Received on Sat Oct 21 14:36:49 2006

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