[Tiki-devel] Broken "Dump Files" feature

Hi!

Tiki has a feature called "Dump Files". It's available at the very end of
the "Wiki" Control Panel page, if you have disable the tab view. 

It is supposed to create a dump of the whole wiki (with restrictions), as a
tar file.

In Tiki 24 or 25, this created a tar archive, which appeared to be
corrupt. The dump is created with some very old tar file creator PHP class. 

My guess is, that, in Tiki 24/25, the created tar file's format is just out
of date. The "tar" program can create/unpack archives of five different
formats - see the section "Archive format selection" in the tar manpage. It
doesn't say if the format is detected automatically. I guess that it
doesn't. I would like try to create an archive and see if it can be unpacked
when choosing a different format than the default. I need to install Tiki
24/25 for trying first, though.

However, in Tiki 26, the "Create Dump File" button doesn't create anything.
Nothing happens for some five seconds and then you get an empty page as a
result. If you go back, the "Download dump file" button in the Wiki control
panel stays shaded out.

I don't know how to troubeshoot this. The state of things in Tiki 24 or 25
is unpleasant, but if my guess is right, then creating a dump file in an
outdated format and repack it could be a practicable way to do it.

So my first concern is how to get the behavior of Tiki 24/25 back.

Cheers,
Volker


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