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yagami
Apprentice
Joined: 12 May 2002
Posts: 269
Location: Leiria, Portugal
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 Posted: Sun May 12, 2002 9:27 pm Post subject: Diffs for big packages |
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From a distribution that works with source code , one of the biggest advantages of source code is that it can be modified, and then recompiled.
I mean , it would be great , if ( to make it easier ) in particular big packages like mozilla , X , etc , there would be diffs available from the latest version.
This would not have to be automated .... we would get them from the ftp mirrors , would apply the diffs ourselves , recompile , put them in /usr/portage/distfiles and then emerge .... as longe as there were the diffs ( kinda like there is in debian , which there is the original tar.gz and then the diff to what changes debian made)
but i am talking also about versions.... , it would be great , ( exemple) mozilla rc1 .....probably the diff from rc1 to rc2 is just a few megs ( if that much)... i would not have to redownload 30 megs .
this would also make it easier on bandwith from gentoo.
Just someone making the diffs available for the big packages somewhere would be nice , and much more efficient ( the way linux kernel patches works is great)
please could someone say if this is reasenable or is just to much to ask... |
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ProGuy
n00b
Joined: 14 Apr 2002
Posts: 17
Location: Denmark
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| Posted: Mon May 20, 2002 12:44 pm Post subject: |
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Sounds interresting. It seems like many big projects are doing diffs themselves, so they do allready exist, it's just a question of using them.
I'm not quite sure how hard it would be to build it into Portage, but I would say it could be done (I might add, that I am in no way familiar with the Portage code).
If we could specify the diff (DIFF) in the ebuild file, it would just be a question of checking if (DIFF_FROM) exists, and download the diff, extract the old sources (DIFF_FROM), and apply the diff.
This surely could be done in a more advanced way, allowing multiple diffs., but this is what I could think of within 5 minutes 
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//ProGuy |
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stroke
n00b
Joined: 13 May 2002
Posts: 36
Location: Italy
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| Posted: Thu May 23, 2002 6:51 pm Post subject: |
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That would be great !
Also I think it won't be difficult at all to implement/code that. |
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heim
n00b
Joined: 31 May 2002
Posts: 5
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| Posted: Fri May 31, 2002 5:33 pm Post subject: diffs |
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this could be done with the current system, on a per ebuild basis.
one way would be by setting SRC_URI like this:
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SRC_URI="ftp://ftp.mozilla.org/pub/mozilla/releases/${PN}${MY_PV1}/src/"
cd /usr/portage/distfiles/
moz=`ls mozilla-source*|tail -n1`
if [ -a /usr/portage/distfiles/${moz} ]
then
SRC_URI="${SRC_URI}${moz}"
else
SRC_URI="${SRC_URI}${PN}-source-${MY_PV1}.tar.bz2"
fi
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then, in src_unpack() download the diff, and apply it.
the md5sum for ${moz} would also need to be added to the digest.
not very nice, but it works. |
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