Matthijs Kooijman <matthijs@xxxxxxxx> wrote:
> Hi folks,
>
> I could reproduce this problem (after installing half a dozen Ubuntue perl
> packages on my Debian system ;-p). It seems the problem is because the
> version comparison is wrong:
>
> if ($SVN::Core::VERSION gt '1.6.12') {
>
> This does textual comparison, so 1.6.6 > 1.6.12. To do proper version
> comparison, I think the version numbers should be split into
> major/minor/revision and each be compared numerically.
>
> This is not the only place where this comparison happens in this way,
> there are 6 more comparisons in this way, which would have to be fixed
> as well.
Ah, thanks for the analysis, we were lucky in the past that all version
components only had a single character.
> We could introduce a helper function for comparing version numbers by
> splitting and comparing the parts separately, but that might be hard to
> get right (especially when non-numeric version parts are involved).
>
> An alternative would be to use the Sort::Versions perl module [1] for
> this, but that would add an external dependency.
>
> I'd be happy to code and test both approaches, just let me know which
> would be preferred.
I think the former is preferable for git. Sort::Versions isn't used
anywhere else in git and I don't think it's widely installed.
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