Re: How to remove a commit object?

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"Klas Lindberg" <klas.lindberg@xxxxxxxxx> writes:

> This doesn't seem to work for me. I will soon be in a situation where
> I need to selectively delete commits in such a way that they become
> completely irrecoverable. I.e. it is not enough to revert a commit.
> The *original* commit must be removed. And of course, the repo history
> is too complex to allow for rebasing followed by garbage collection or
> something like that.
[...]

> Would it be feasible to write a tool that can selectively replace a
> specific commit in the commit DAG, or would that automatically
> invalidate every SHA key for every commit that follows the replaced
> original?

It would invalidate SHA1 for every commit after first rewritten.
There are two tools which you can use to rewrite large parts of
history automatically: git-filter-branch, and git-fast-export +
git-fast-import.

HTH
-- 
Jakub Narebski
Poland
ShadeHawk on #git
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