On Thu, 2017-09-21 at 11:02 +0200, Julian Sedding wrote:
> Hi Robert
> 
> Another approach may be to use "git subtree" based on the git-svn
> repo
> from github.
> 
> I quickly tested moving "repoinit" out of a clone of
> https://github.com/apache/sling using "git subtree split -P
> bundles/jcr/repoinit -b repoinit" as described by a stackoverflow
> answer[0].
> 
> This seems to have worked "better", I have history back to
> http://svn.apache.org/r1744564, at which point the module was copied
> from "bundles/commons/repoinit" to "bundles/extensions/repoinit". But
> here it cuts off again.

That's good. I gave up that approach since it seemed to take a lot -
git filter-branch was really fast.

I'll put it on the list after reposurgeon, which unfortunately requires
a full svn dump of the source repo . 60GB is going to take a while to
sync :-)

Thanks,

Robert

> 
> Regards
> Julian
> 
> [0] https://stackoverflow.com/questions/359424/detach-move-subdirecto
> ry-into-separate-git-repository/17864475#17864475
> 
> On Thu, Sep 21, 2017 at 10:18 AM, Robert Munteanu <romb...@apache.org
> > wrote:
> > Hi Julian,
> > 
> > On Thu, 2017-09-21 at 10:01 +0200, Julian Sedding wrote:
> > > Hi Robert
> > > 
> > > Thanks for pushing the conversion forward!
> > > 
> > > IIUC your script uses https://github.com/apache/sling as the
> > > source
> > > repository. I believe this is created using git-svn. (I'd be
> > > happy
> > > for
> > > a pointer that I am wrong!)
> > 
> > Yes, that is the case.
> > 
> > > 
> > > According to Eric Raymond (http://esr.ibiblio.org/?p=6778), who
> > > claims
> > > to have some experience with svn to git migrations, git-svn is
> > > not up
> > > to the task. Maybe that's where the history is lost.
> > > 
> > > In any case, I think we need to start the migration from the SVN
> > > repository, given that https://github.com/apache/sling already
> > > lacks
> > > the history.
> > > 
> > > Maybe reposurgeon, the tool E. Raymond wrote, can help overcome
> > > the
> > > issue with lost history when copying branches?
> > 
> > I'll try reposurgeon, thanks for the pointer. The thing is that the
> > git
> > remote seems to have the right rename handling, but it's lost when
> > I
> > create the module. But let's see after I try reposurgeon.
> > 
> > Thanks,
> > 
> > Robert
> > 
> > > 
> > > Regards
> > > Julian
> > > 
> > > 
> > > 
> > > On Wed, Sep 20, 2017 at 5:42 PM, Robert Munteanu <rombert@apache.
> > > org>
> > > wrote:
> > > > Hi,
> > > > 
> > > > I did a dry run migration of two sling bundles:
> > > > 
> > > >   https://github.com/rombert/TMP-sling-org.apache.sling.api
> > > >   https://github.com/rombert/TMP-sling-org.apache.sling.jcr.rep
> > > > oini
> > > > t
> > > > 
> > > > Please take a look and check if _anything_ is wrong. I think
> > > > that I
> > > > have the process narrowed down more or less using the scripts
> > > > at
> > > > [1].
> > > > 
> > > > What I know is missing is move tracking. For some reason, the
> > > > jcr.repoinit module move is not captured and history starts
> > > > after
> > > > the
> > > > move from bundles/extensions. ( SVN [2], git [3] ). Any help
> > > > with
> > > > what
> > > > would be great.
> > > > 
> > > > Also I've created a small repo tool setup at
> > > > 
> > > >   https://github.com/rombert/TMP-sling-manifest
> > > > 
> > > > The instructions are in the README, but you need to install
> > > > repo
> > > > 
> > > > $ curl https://storage.googleapis.com/git-repo-downloads/repo >
> > > > ~/bin/repo
> > > > $ chmod a+x ~/bin/repo
> > > > 
> > > > And then sync your local checkout
> > > > 
> > > > $ repo init -u https://github.com/rombert/TMP-sling-manifest.gi
> > > > t
> > > > $ repo sync
> > > > 
> > > > Any feedback is welcome, please do look into the migrated
> > > > repositories
> > > > or maybe propose some tougher migrations. If you are so
> > > > inclined,
> > > > the
> > > > scripts at tooling/scm/scripts [1] can also use a second pair
> > > > of
> > > > eyes
> > > > :-)
> > > > 
> > > > I'm going to leave this open for a week or so, but maybe after
> > > > that
> > > > we
> > > > can start migrating from SVN.
> > > > 
> > > > Thanks,
> > > > 
> > > > Robert
> > > > 
> > > > 
> > > > [1]: https://svn.apache.org/repos/asf/sling/trunk/tooling/scm/s
> > > > crip
> > > > ts/
> > > > [2]: http://svn.apache.org/viewvc?view=revision&revision=175216
> > > > 2
> > > > [3]: https://github.com/apache/sling/commit/087f2d0504dc0b8c38f
> > > > d298
> > > > ab9c
> > > > 29f896321f8c8

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