Re: git-svn: incomplete data after terminated "git svn clone"

[Thomas Rast <trast@student.ethz.ch>]

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Erik Faye-Lund wrote:
> I recently tried to clone an existing (very big) SVN repo by using
> "git svn clone <repo> -s", and by mistake I pressed Ctrl-C after the
> clone operation had been running for ~16 hours. When trying to
> re-issue the clone, I got the error message "Incomplete data: Delta
> source ended unexpectedly at /home/erifay01/libexec/git-core/git-svn
> line 4249" after git-svn fetching another 8 or so revisions. Now, I
> realize I shouldn't have done this, but I'd still prefer avoiding to
> have to re-do it all.
[...]
> Now, I'm wondering if there's any way of going back to the state
> before I pressed Ctrl-C, so I can rebuild from there. I know what
> revision I terminated at, and I have the corresponding SHA.

Some ideas:

First you can try to reset the git-svn head to the SHA of the commit
before (in case the one it stopped at ended up being corrupted).  For
example, if $stopped is the commit you interrupted it at,

  git update-ref refs/remotes/git-svn $stopped^

Adjust the ref name if you used a trunk/branches layout.  Then remove
the .git/svn/ cache and try again.

Failing that, you could test if this also happens when only looking at
a few surrounding revisions, for example if the failure was around
revision 100:

  mkdir ../new-test
  cd ../new-test
  git svn init <args you gave to the other git svn init/clone>
  git svn fetch -r 95:105

-- 
Thomas Rast
trast@{inf,student}.ethz.ch

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