hi gabor, On Fri, May 22, 2009 at 04:09:53PM +0200, Gabor Kiss wrote: > $ find > .. > ../upgrade > ../upgrade/mysql > ../upgrade/mysql/2 > ../upgrade/mysql/2/T > ../upgrade/mysql/2/E > ../upgrade/mysql/3 > ../upgrade/mysql/3/D.sql > ../upgrade/mysql/1 > ../upgrade/mysql/1/B.sql > ../upgrade-dbadmin > ../upgrade-dbadmin/mysql > ../upgrade-dbadmin/mysql/2 > ../upgrade-dbadmin/mysql/2/A
<snip>
> However we need not filenames but version numbers as arguments
> of "dpkg --compare-versions", i.e. 1 2 3 in this example.
my memory is a bit vague here as it's been a while since i've looked at this
code. however, i believe that <VERSION> isn't meant to be a subdirectory,
so instead T and E, for example, should be concatenated into a single file "2".
> Unfortunately the package versions are not single integers so sorting
> them is not a trivial problem:
<snip>
> So what about a little more complex package versions like 5.0.51a-24+lenny1 ?
this might still be a problem, but there's a simple workaround: cheat :) i.e.
there's not a strict requirement that you have a exact mapping of versions,
so you could make a fake <VERSION> that sorted correctly.
> So I'm afraid this part of postinst script should be totally rewritten.
i'm not sure about "totally", but having proper sorting would be nice. i think
calling dpkg --compareversions O(n^2) (n! if you want to be picky) is less than
ideal though.
hm... i wonder how hard it'd be to write a bubble sort in /bin/sh...
sean
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