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Re: [GNU-linux-libre] The "Free" Kernel In Debian Squeeze

From: Alexandre Oliva
Subject: Re: [GNU-linux-libre] The "Free" Kernel In Debian Squeeze
Date: Mon, 27 Dec 2010 08:42:49 -0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux)

On Dec 19, 2010, Richard Stallman <address@hidden> wrote:

> I think what we want is a program that will modify a git repository by
> meta-deleting a certain range of code.

Yup.  That's relatively easy.  The difficulty is in maintaining the
ability to merge changes from one repository to the other.

There are two options AFAICT:

- rewrite the revision history, so that new hashes (that identify the
commits) are computed for each revision => repositories become

- revise the history as in a branch => repositories remain compatible,
but their history will carry the non-Free portions, and there doesn't
seem to be any way to refrain from carrying (or redistributing) them,
since the commit ids carrying them are explicitly mentioned in the
modified commits.

What is really needed is someone familiar with the git's guts :-) to let
me know whether I'm missing something and there is indeed a way to
accomplish what we want, or if we have to make a tough call on how to

Alexandre Oliva, freedom fighter
You must be the change you wish to see in the world. -- Gandhi
Be Free! --   FSF Latin America board member
Free Software Evangelist      Red Hat Brazil Compiler Engineer

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