[pacman-dev] xdelta patches

[Andrew Fyfe]

Roman Kyrylych wrote:
> 2007/6/3, Dale Ogilvie <pnyli0002 at sneakemail.com>:
>> Hello,
>>
>> I've made a few alterations to the recently comitted xdelta mods for makepkg &
>> wget-xdelta.sh.
>>
>> Please check these out in my forum post:
>> http://bbs.archlinux.org/viewtopic.php?pid=255563#p255563
>>
>> In short, I fixed a couple of bugs, although oldversion detection is still not
>> bullet-proof due to difficulties parsing out the package name. The main
>> problem is that package names can include hyphens...
>>
>> My best effort looks like this, the first 0-9 is meant to be the start of the
>> pkg version, and the last being the release number:
>>
>> ls {"$cache_dir","$PKGDEST"}/${pkgname}-[0-9]*-[0-9]*${PKGEXT}
>>
>> This will fail if there happens to be a sub-package of foo such as:
>>
>> foo-1st-sub-1.0-1.i686.pkg.tar.gz
>>
>> ...or a package that happens to be:
>>
>> foo-A0-1.i686.pkg.tar.gz
> 
> The right way would be to split by hyphens:
> package name is everything minus 2 chunks separated by 2 rightmost hyphens.
> But my bash/sed/awk/cut/whatever skills were not enought when I've
> tried to do such parsing. :-P
> Or maybe there is already such solution that I'm not aware of?
> 

sed to the rescue :D just whipped this up http://tinyurl.com/24fl8g This 
brings the version comparison into line with the rest of pacman - it 
works most of the time but version numbers containing letters will 
confuse it.

Still need to fix the wget script.

Andrew