old tags lost

[Robert Helling]

On 13.12.2013, at 09:29, Thomas 'Mike' Michlmayr <mike at cluon.priv.at> wrote:

> i was (and still am) pretty surprised that this (or any other sort of
> on-by-default VCS for the logfile) is not built into subsurface by default.

Less cool of course, but I have to admit that I keep my real log xml in a Dropbox which saves me committing and pulling on different machines etc but still has the last 24 Versions to restore via the web page. Of course, that cannot merge and thus off-line editing on different machines is dangerous.

Which brings me to a more serious point: Should we build in a warning when one saves over a file that has changed after it was loaded last time? For example, besides memorizing the file name we could memorize its state (e.g. change time or a hash) and check that again before save without a file selector dialog taking effect. There is still a race condition but I would think the danger is significantly reduced.

A friend told be she stopped using subsurface as she somehow lost all her data when (I did not quite understand) she installed a new hard drive on her windows machine and had to play around with the drive letters which somehow resulted in saving an empty file over her default file.
 
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Robert C. Helling     Elite Master Course Theoretical and Mathematical Physics
                      Scientific Coordinator
                      Ludwig Maximilians Universitaet Muenchen, Dept. Physik
                      Phone: +49 89 2180-4523  Theresienstr. 39, rm. B339
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