[PATCH RFC] repair: add mechanism to convert/upgrade a repo in place

[Sean Farley]

Pierre-Yves David <pierre-yves.david at ens-lyon.org> writes:

> On 02/16/2016 12:47 AM, Gregory Szorc wrote:
>> # HG changeset patch
>> # User Gregory Szorc <gregory.szorc at gmail.com>
>> # Date 1455580051 28800
>> #      Mon Feb 15 15:47:31 2016 -0800
>> # Node ID d65feeab5bc118778d9523e7df44fe38804046ce
>> # Parent  a3fcea8d55f7c2b3e9d83c00cbe303890a906775
>> repair: add mechanism to convert/upgrade a repo in place
>>
>> Pierre-Yves wants a debug command to "upgrade" repositories to
>> generaldelta. Taking a step backward, upgrading a repository to
>> generaldelta is a subset of the general task of adding a new
>> requirement to an existing repository.
>
> Bitbucket would be delighted to have it.

Yep! We'd also need the other direction, though: removing a requirement.
This would allow us to deploy experimental features as an opt-in.