BUG : Removing of old slices before archive creation

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Hi,

There is a anoying bug in the way libdar removes old slices of an
archive having the same name as the one about to be created.

While this operation is always done upon user agreement, it may lead dar
or dar_xform to remove slices of an archive having a similar name but
not exactly the same name.

This problem is due to the glob expression used "<basename>.*.dar" which
may match more than just slices of archive which basename is
"<basename>". Here is an example :

If one has an old archive with slices "example.test.1.dar" and
"example.test.2.dar" in a directory and is about to create an archive
using the basename "example" (thus slices with name "example.1.dar",
"example.2.dar" and so on) in that same directory, dar will wrongly
consider that "example.test.1.dar" is an old slice of the same archive
name because it matches the "example.*.dar" glob expression.

More generally, if you do not use any dot in the archive basename, you
are not concerned by this bug. If you do not use archive name that is
portion of another archive name you are not concerned by this bug
neither. Last, if you do not create several archives in the same
directory you are neither concerned by this bug.

Instead, you are concerned by this bug only if you follow the three
previous conditions : having dot in archive basename, having archive
basename being a subset of another archive basename, having this other
archive stored in the same directory as the one you are about to create.

This bug has been fixed in CVS on branch 2_3_x (see [1] below for
details), but due to lack of time I cannot make a new release right now.
Instead, I will save my free time to push dar 2.4.0 current developement
code into pre-release phase (still important work remains to do before
that, but we get close to this).

In the meanwhile, if you are concerned by the bug it is advised to not
allow dar to remove old slices of an archive when it asks to do so. You
are also welcome to grab the 2.3.11_interim version of dar from CVS.

Thanks to Brendon Higgins for his feedback about this bug [2].

Kind Regards,
Denis.

[1] http://dar.linux.free.fr/doc/index.html#CVS
[2]
http://sourceforge.net/tracker/?func=detail&aid=2998408&group_id=65612&atid=511612
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