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Re: [O] Git merge tool for Org files

From: Carsten Dominik
Subject: Re: [O] Git merge tool for Org files
Date: Sat, 20 Aug 2011 16:42:45 +0200

On 20.8.2011, at 16:17, Andrea Crotti wrote:

> On 08/18/2011 12:45 PM, Carsten Dominik wrote:
>> Hi,
>> I was wondering if anyone here has the skills and interest to write
>> a git merge driver for Org mode files, in the way
>> http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=lib/git-merge-changelog.c
>> does this for GNU style ChangeLog files?
>> One of the obstacle for using Org-mode for collaborative programs is that
>> many operations add or remove text from the beginning or end of a file,
>> or which add or remove a subnode from an outline tree.
>> These are operations that confuse the git merger, in particular
>> if two people have added something to a file, or removed/added
>> sequential sibling nodes.
>> I believe that this could be solved with a dedicated merge driver
>> that understands the integrity of an outline (sub)tree, and that
>> knows that the sequence of two new subtrees added by different people
>> does not matter.
>> The idea for this is actually (I believe) from Brian Gough who asked me
>> about it at FOSDEM.  I have now also run into this problem and would
>> really find it great if such a merge driver could be written.
>> Unfortunately, I do not have the skill for this.
>> - Carsten
> Does the merge driver need to be written in C?

I have no idea, but I would think that it could also be written in Perl,
for example.

> It looks quite a complex task considering that org-mode files
> are not so easy to parse...
> Anyway a partly unrelated thing, with git attributes I'm able
> to see the diff of crypted org files very easily (maybe someone
> is interested), adding to .git/config:
> [diff "gpg"]
>      textconv = gpg2 --decrypt
> and to .gitattributes:
> *.gpg diff=gpg


- Carsten

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