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Re: Error E160016 "... is not a directory in filesystem ..."

From: Vincent Lefevre <vincent-svn_at_vinc17.net>
Date: Fri, 3 Nov 2017 13:33:03 +0100

On 2017-11-03 10:53:07 +0100, Vincent Lefevre wrote:
> Unfortunately, currently I can't. A few days ago, I tried to reproduce
> it with similar changes in a sample repository, but this didn't trigger
> the bug. I'll try again from information based on strace, i.e. on the
> fact that "perso" was moved in the past. But I fear that this may be
> more complex (otherwise the bug would have already been found).

As I thought, I couldn't reproduce the bug with such a sample

But I've found that the bug is fixed in the trunk. I could bisect
to search for the fix, and this is the following:

r1795116 | stefan2 | 2017-05-14 22:22:49 +0200 (Sun, 14 May 2017) | 17 lines

Fix issue #4677.

When non-exitent paths are allowed as a result of a DAG-walk
(as opposed to creating a "path not found" error on those),
we may encounter file nodes in the "parent" path. Those are
not an error but simply an indication that there won't be any

* subversion/libsvn_fs_fs/tree.c
  (open_path): If n/a paths are allowed, non-dir parents are, too.

* subversion/libsvn_fs_x/dag_cache.c
  (svn_fs_x__get_dag_path): Same.

* subversion/tests/libsvn_fs/fs-test.c
  (closest_copy_test_svn_4677): Add regression test.
  (test_funcs): Register new test.

https://issues.apache.org/jira/browse/SVN-4677 contains:

This bug was introduced in
http://svn.apache.org/viewvc?view=revision&revision=1586953 , is
present in all releases since 1.9.0, and can be fixed by reverting
that commit.

And the test shows a similar error:

Updating '.':
svn: E160016: Failure opening '/b/fa/fb'
svn: E160016: '/b/fa' is not a directory in filesystem '1d2dc934-16b4-452c-a607-a6080764124e'

There is a comment saying:

"Backport for 1.9.6 is yet to be approved."

Could it really be backported?

Vincent Lefvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
Received on 2017-11-03 13:33:15 CET

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