Re: How should I deal with this CVS to Subversion migration issue (and how is this done the Subversion way?)
From: Talden <talden_at_gmail.com>
Date: 2007-05-08 13:16:04 CEST
I wonder what is involved in making the migration treat these internal
So links are followed but clearly reference back to the shared source
source/a.c
lets say that the source/a.c is modified in revisions 1 and 2... The
r1
Without the merge support there's no way to clearly show that the r2
Yeah yeah, I know, dream on, tiny edge-case for people who created
-- Talden On 5/4/07, Talden <talden@gmail.com> wrote: > Making the following of links in cvs2svn optional would be a good > thing. I doubt there's any good solution that fits into Subversion > other than perhaps, when following links, implementing Subversion > copies from the link source to the link destination at the appropriate > revisions. > > With link following I can migrate with the 'cloning' approach and then > get them to modify their approach to access shared material via > relative paths - at least with history intact that's an option that is > at least moderately viable. > > Having discovered this little gem I also found they've modified ,v > files directly and made a few mistakes... Letting people have CVS repo > file-system access is a bad thing - someone's always sure they're > infallible. > > Thanks all for the pointers. Hopefully any negative feedback from the > people responsible won't stop the migration plan. > > -- > Talden > > On 5/3/07, Michael Haggerty <mhagger@alum.mit.edu> wrote: > > Talden wrote: > > > The weirdness comes from the example below which shows that the CVS > > > repo contains a number of symlinked RCS files (and some folders) - The > > > repo looks something like this. > > > > > > [...] > > > > > > 1. How would you achieve the same results in Subversion - Are > > > externals relevent? Can externals be used for these file-links. Is > > > there a redbook entry for this kind of issue? Is there a redbook > > > equivalent specifically covering CVS->Subversion migration issues and > > > changes in approach. > > > > The standard SVN approach would be to use svn:externals. svn:externals > > has some well-known limitations. For example, they may have to be > > adjusted manually when you branch or tag, and they can only work if > > everybody accesses the repository via the same protocol (http vs > > svn+ssh, for example). > > > > Currently there is no support in cvs2svn for setting svn:external > > properties. > > > > > 2. How is cvs2svn going to migrate this? Will it follow the symlinks > > > and just replicate shared content? This would 'unshare' the code > > > making future changes to common code fail to propagate automagically > > > but it would result in valid history at least. > > > > The latest official release of cvs2svn (1.5.1) ignores symlinks in the > > repository (i.e., doesn't follow them at all). This behavior has been > > changed in the trunk version of cvs2svn, which follows symlinks as if > > they were normal directories. (This behavior could easily be made > > optional if that were important to your conversion.) But neither > > version tries to convert the symlinks to svn:externals or anything > > similar. (I can't think of automated behavior that would make sense.) > > > > Michael > > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@subversion.tigris.org For additional commands, e-mail: users-help@subversion.tigris.orgReceived on Tue May 8 13:16:30 2007 |
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