Hi Mike, I think git-cvsimport and git-subtree could help you here. Roughly: # Create a git version of each SDK_subproj git cvsimport -r upstream -d $CVSREPO1 $CVSMODULE1 -C SDK_subproj1 git cvsimport -r upstream -d $CVSREPO2 $CVSMODULE2 -C SDK_subproj2 # Create your Working_SDK git init Working_SDK cd Working_SDK # Import the SDK_subprojN repos git subtree add --prefix=subproj1 ../SDK_subproj1 upstream/master git subtree add --prefix=subproj2 ../SDK_subproj2 upstream/master # Edit and commit your files # N.B. when committing don't commit to more than one subproj in a single commit # Update from the upstream CVS as needed git cvsimport -r upstream -d $CVSREPO1 $CVSMODULE1 -C ../SDK_subproj1 git subtree pull --prefix=subproj1 ../SDK_subproj1 upstream/master git cvsimport -r upstream -d $CVSREPO2 $CVSMODULE2 -C ../SDK_subproj2 git subtree pull --prefix=subproj2 ../SDK_subproj2 upstream/master # Push your changes back to SDK_subproj repos into a branch other than master git subtree push --prefix=subproj1 ../SDK_subproj1 new-branch git subtree push --prefix=subproj1 ../SDK_subproj2 new-branch # Prepare patches to apply to a real CVS copy or submit upstream (cd ../SDK_subproj1 && git format-patch upstream/master..new-branch) (cd ../SDK_subproj2 && git format-patch upstream/master..new-branch) Hope that helps. -- Paul On Tue, Feb 12, 2013 at 10:19 AM, MikeW <mw_phil@xxxxxxxxxxx> wrote: > Matthieu Moy <Matthieu.Moy <at> grenoble-inp.fr> writes: > >> >> MikeW <mw_phil <at> yahoo.co.uk> writes: >> >> > Since git is so good at tracking file content, I wondered whether > there was any >> > technique using git that would simplify the back-referencing task. >> >> I'm not sure I understand the question, but if you want to add meta-data >> to Git commits (e.g. "this Git commit is revision 42 in CVS repository >> foo"), then have a look at git-notes. It won't give you directly >> "reference to other VCS", but at least can be used as a storage >> mechanism to store these references. >> > Thanks for the reply. > > In my work environment both the SDK and the original files are available > (in an enclosing directory). > > --SDK_content > | > SDK_subproj1-- ... > | | > | content > | > SDK_subproj2- ... > | | > | content > | > SDK_subprojN- ... > | | > | content > | > Working_SDK ... (under git, baseline generated from subproj1..N) > | > content derived from subproj1..N > > > What I had in mind was something I could run over, say, SDK_content > (alternatively, from within Working_SDK, referring back to SDK_content) > which would note the changed files in Working_SDK and locate the > original files in SDK_subproj1..N letting me merge the changes back. > > > -- > To unsubscribe from this list: send the line "unsubscribe git" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Paul [W] Campbell -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html