[darcs-users] How do I purge a binary from my repository?

Eric Kow kowey at darcs.net
Tue Feb 10 20:01:49 UTC 2009

Hi Aaron,

Is there any chance you would like to try your hand at helping Lyle out?
It may be good research for whether we need a darcs transplant command
or not.


 (P.S. we also need to rule out the more basic stuff, for example, if
  the patches in question only touch LICENSE.txt, then it's just a
  matter of cherry picking --match 'touch LICENSE.txt')

On Tue, Feb 10, 2009 at 11:25:14 -0800, Lyle Kopnicky wrote:
> Hi folks,
> I have a basic working knowledge of Darcs, but am not familiar with many of
> the advanced commands. I recently discovered that back in January, I had
> accidentally overwritten my project's LICENSE.txt file with a binary
> (apparently a distribution tarball). It was recorded as part of a patch
> along with other useful changes. I was able to fix the file by recreating it
> and recording the change. But now I have two giant patches in my repository:
> one to add the binary (along with other changes) and another to remove it.
> Furthermore, I have a backup of my repository on patch-tag.com that also has
> these patches.
> What's the safest and most straightforward way to purge these copies of the
> binary from my history? I'm thinking something along the lines of: figuring
> out what other changes were in the first patch that I want to keep, and
> storing that in a diff; obliterating the patches from the repository;
> reapplying the diff and recording that. Of course there's a risk that later
> patches depended on the one I obliterated, which could make the repository
> inconsistent.
> Any sage wisdom would be appreciated.
> Thanks,
> Lyle

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Eric Kow <http://www.nltg.brighton.ac.uk/home/Eric.Kow>
PGP Key ID: 08AC04F9
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