Mercurial > hg
view hgext/git/TODO.md @ 47280:1766130fe9ba
dirstate-v2: Change the on-disk format when the requirement is enabled
For now, the format is the same except with an additional marker at the start.
This marker is redundant: for existing repositories it is `.hg/requires` that
determines which format to use. For new repositories, it is the new
`format.exp-dirstate-v2` config. There is no upgrade or downgrade so far.
Most of the changes are about plumbing a boolean through layers of APIs to
indicate which format should be used.
Differential Revision: https://phab.mercurial-scm.org/D10719
author | Simon Sapin <simon.sapin@octobus.net> |
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date | Wed, 19 May 2021 13:15:00 +0200 |
parents | c5653cf2811d |
children |
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Octopus Merge Support ===================== This will be moderately complicated, as we'll need to synthesize phony changeset entries to explode the octopus into "revisions" that only have two parents each. For today, we can probably just do something like aaaaaaaaaaaaaaaaaaXX{20 bytes of exploded node's hex sha} where XX is a counter (so we could have as many as 255 parents in a git commit - more than I think we'd ever see.) That means that we can install some check in this extension to disallow checking out or otherwise interacting with the `aaaaaaaaaaaaaaaaaa` revisions. Interface Creation ==================== We at least need an interface definition for `changelog` in core that this extension can satisfy, and again for `basicstore`. Reason About Locking ==================== We should spend some time thinking hard about locking, especially on .git/index etc. We're probably adequately locking the _git_ repository, but may not have enough locking correctness in places where hg does locking that git isn't aware of (notably the working copy, which I believe Git does not lock.)