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On Sun, 28 Nov 2004 15:22:44 -0200, Gustavo Barbieri <barbieri@×××××.com> wrote: |
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> On Sun, 28 Nov 2004 05:44:50 +0000 (GMT), Ed Grimm |
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> <paranoid@××××××××××××××××××××××.org> wrote: |
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> > On Sat, 27 Nov 2004, Gustavo Barbieri wrote: |
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> > > Some packages use numbering version padded with zero, that's good to |
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> > > list with shell functions, but it's bad because you can't change them |
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> > > to numbers and them back to string. For example: |
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> > > mail-mta/nullmailer-1.00_rc7-r4. If you Convert it to integers, it |
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> > > becomes 1.0 and you can't map back to the ebuild. |
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> > |
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> > It's worse than that. They're not always integers. It's safest to |
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> > treat version numbers as strings as much as possible; when one needs to |
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> > break them into integer portions, do this for comparison only, and save |
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> > the original. Finally, a number of packages would require that you |
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> > provide a mechanism for determining all version numbers that aren't |
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> > strictly numeric. Openssl, with its \d+.\d+.\d+[a-z] versions is easy. |
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> > hddtemp, with its alpha/beta tags, is doable but tedious. |
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> |
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> I did a PackageVersion class that parses these sections using a |
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> regular expression following the package naming policy. I don't send |
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> the code since I'll need to recode it, my XFS lost many data after a |
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> power failure :( But I have the bytecode if you want to test it or |
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> help me to get the .py back. |
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|
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Okay, I hacked a free version of decompyle from BSD to support python |
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2.3 bytecode and recovered my file. |
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If you want to check it out: |
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http://ltc08.ic.unicamp.br/~gustavo/packagemanager.tar.bz2, the file |
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of interest is lib/packagemanager/packagemanagementsystem.py, there |
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are some classes, he PackageVersion is of interest, please look at it. |
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(if you don't want to get the package: |
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http://ltc08.ic.unicamp.br/~gustavo/packagemanagementsystem.py) |
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-- |
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Gustavo Sverzut Barbieri |
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--------------------------------------- |
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Computer Engineer 2001 - UNICAMP |
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GPSL - Grupo Pro Software Livre |
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Cell..: +55 (19) 9165 8010 |
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Jabber: gsbarbieri@××××××.org |
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ICQ#: 17249123 |
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GPG: 0xB640E1A2 @ wwwkeys.pgp.net |
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-- |
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gentoo-portage-dev@g.o mailing list |
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