Mercurial > hg
comparison mercurial/localrepo.py @ 41202:e7a2cc84dbc0
revlog: always enable generaldelta on version 2 revlogs
This commit starts the process of diverging version 2 revlogs
from version 1 revlogs.
generaldelta is a useful feature and has been enabled by
default for ages. I can't think of a good reason why the
feature should be disabled. Yes, it is true changelogs
today don't have generaldelta enabled. But that's because
they don't have delta chains enabled, so generaldelta makes
no sense there.
This commit makes generaldelta always enabled on version 2
revlogs.
As part of this, one-off code in changelog.py mucking with
revlog.version had to be made conditional on the revlog
version, as we don't want to change revlog feature
flags on version 2 revlogs. The fact this code exists
is horrible and stems from revlog options being shared by
the opener. We probably want a better API here. But that can
wait for another patch.
Differential Revision: https://phab.mercurial-scm.org/D5561
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Wed, 09 Jan 2019 17:41:36 -0800 |
parents | ce0bc2952e2a |
children | 8aca89a694d4 |
comparison
equal
deleted
inserted
replaced
41201:6439cefaeb64 | 41202:e7a2cc84dbc0 |
---|---|
361 | 361 |
362 # End of baselegacywirecommands interface. | 362 # End of baselegacywirecommands interface. |
363 | 363 |
364 # Increment the sub-version when the revlog v2 format changes to lock out old | 364 # Increment the sub-version when the revlog v2 format changes to lock out old |
365 # clients. | 365 # clients. |
366 REVLOGV2_REQUIREMENT = 'exp-revlogv2.0' | 366 REVLOGV2_REQUIREMENT = 'exp-revlogv2.1' |
367 | 367 |
368 # A repository with the sparserevlog feature will have delta chains that | 368 # A repository with the sparserevlog feature will have delta chains that |
369 # can spread over a larger span. Sparse reading cuts these large spans into | 369 # can spread over a larger span. Sparse reading cuts these large spans into |
370 # pieces, so that each piece isn't too big. | 370 # pieces, so that each piece isn't too big. |
371 # Without the sparserevlog capability, reading from the repository could use | 371 # Without the sparserevlog capability, reading from the repository could use |