To: gnu-arch-users@gnu.org
From: Andreas Rottmann <a.rottmann@gmx.at>
Date: Fri, 10 Dec 2004 19:49:43 +0100
Message-ID: <874qiuhttk.fsf@ivanova.rotty.yi.org>
References: <A5C89476-4AD0-11D9-9A9D-000A95C8B422@rubick.com>
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Subject: [Gnu-arch-users] Re: Applying changesets on non-Arch sources
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"Jade Rubick" <jade@rubick.com> writes:

> So my patch-8 contains all the changes. I'd like to take that patch
> and submit it in a form that can be applied to non-Arch source code.
> Then I can commit it, send it to someone, etc..
>
> I realize that Arch's changesets do a lot more than normal the normal
> patch command. I'd be even happy if I could apply an Arch changeset on
> non-Arch code. Is that possible?
>
Well, I've developed a way to extract a "patch script" out of an
archive. This script, when run, will replay the changes in a set of
changesets in an archive, including renames (that feature is not well
tested, however). You can find the code in iTLA [0], this the file
that does the work:

http://rotty-ipv4.yi.org/cgi-bin/archzoom.cgi/a.rottmann@gmx.at--2004-main/itla--devo--0.1--patch-7/itla/export.scm

[0] http://yi.org/rotty/ITLA

This exports the changeset that corresponds to "tla changes" as a
"patch script". I get the wanted set of changesets by removing their
patch-logs from the tree, which is admittedly a bit of a hack, but
works quite well; see the function "create-patch-script" in this file:

http://rotty-ipv4.yi.org/cgi-bin/archzoom.cgi/a.rottmann@gmx.at--2004-main/itla--devo--0.1--patch-7/bin/itla-debuild

I already thought about exposing this functionality directly in a
command, e.g. 

itla-export <fully-qualified-revision>

Would you find that useful?

> Questions:
>
> 1. Is there a way I can take patch-8, and apply that on another
> machine, with tla installed, on non-Arch controlled source trees?
>
On the machine where the patch script is run, tla doesn't have to be
installed, just on the machine you create it, you need tla (and itla).

> 2. Is there a way to take that changeset and apply the changes to a
> non-Arch source tree, even if I don't get the renaming of files,
> etc... I'd love to just be able to patch -p0 < patch-file and have a
> reasonably close set of changes made to the source code.
>
See above.

HTH, Rotty
-- 
Andreas Rottmann         | Rotty@ICQ      | 118634484@ICQ | a.rottmann@gmx.at
http://yi.org/rotty      | GnuPG Key: http://yi.org/rotty/gpg.asc
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Software Patents: Where do you want to stifle inovation today?


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