Re: Creating something like increasing revision numbers

[Norbert Preining <preining@logic.at>]

Hi Daniel,

On So, 18 Okt 2009, Daniel Barkalow wrote:
> > - how would one access this "sequence" number on the server
> 
> There isn't currently anything built in that counts up like that; however, 
> it shouldn't be too hard to add something, because the reflog gets an 
> entry at the same times the sequence number would increase. In fact, you 

Ok.

> > - is there a way to determine at which of this "sequence" numbers a specific
> >   file has been changed last?
> 
> There isn't a built-in way, but you can find the current hash for a 
> filename with "git ls-tree -r <branch> <filename>", and find the hash as 
> of N changes ago with "git ls-tree -r <branch>@{<N>} <filename>". You're 
> looking for the smallest N where they don't match. (And you probably 
> don't want to be a binary search or the like, because that might miss that 

That sounds like we cannot use that, because we have to do that for about
80k files and that on each (at least daily) rebuilt. That is not feasable.

Again thanks for your helpful comments!

Norbert

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Dr. Norbert Preining                                        Associate Professor
JAIST Japan Advanced Institute of Science and Technology   preining@jaist.ac.jp
Vienna University of Technology                               preining@logic.at
Debian Developer (Debian TeX Task Force)                    preining@debian.org
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