Patrick Mezard <pmezard@gmail.com> [Wed, 18 May 2011 23:48:17 +0200] rev 14370
patch: add a workingbackend dirstate layer on top of fsbackend
_updatedir() is no longer used by internalpatch()
The change in test-mq-missingfiles.t comes from workingbackend not considering
the missing 'b' file as changed, thus not calling addremove() on it.
Patrick Mezard <pmezard@gmail.com> [Wed, 18 May 2011 23:48:13 +0200] rev 14369
patch: handle binary copies as regular ones
This introduces a performance regression for large files, as they will be
copied just to be clobbered afterwards since binary patching does not use
deltas. But it simplifies the code and the previous optimization will be
reintroduced later in a better way.
Patrick Mezard <pmezard@gmail.com> [Wed, 18 May 2011 23:48:13 +0200] rev 14368
patch: remove files while patching, not in updatedir()
At this point, updatedir() only reads the working directory and update the
dirstate.
Patrick Mezard <pmezard@gmail.com> [Wed, 18 May 2011 23:48:13 +0200] rev 14367
patch: set desired mode when patching, not in updatedir()
This patch and the following aim at merging _updatedir() actions into
_applydiff().
Patrick Mezard <pmezard@gmail.com> [Wed, 18 May 2011 23:48:13 +0200] rev 14366
patch: stop changing current directory before patching
_applydiff() patcher argument was added to help hgsubversion like extension
monkeypatching the patching process. While it could be removed at this point, I
prefer to leave it until patch.py is completely refactored and there is a valid
and tested alternative.
Sune Foldager <cryo@cyanite.org> [Wed, 18 May 2011 23:26:26 +0200] rev 14365
revlog: linearize created changegroups in generaldelta revlogs
This greatly improves the speed of the bundling process, and often reduces the
bundle size considerably. (Although if the repository is already ordered, this
has little effect on both time and bundle size.)
For non-generaldelta clients, the reduced bundle size translates to a reduced
repository size, similar to shrinking the revlogs (which uses the exact same
algorithm). For generaldelta clients the difference is minor.
When the new bundle format comes, reordering will not be necessary since we
can then store the deltaparent relationsships directly. The eventual default
behavior for clients and servers is presented in the table below, where "new"
implies support for GD as well as the new bundle format:
old client new client
old server old bundle, no reorder old bundle, no reorder
new server, non-GD old bundle, no reorder[1] old bundle, no reorder[2]
new server, GD old bundle, reorder[3] new bundle, no reorder[4]
[1] reordering is expensive on the server in this case, skip it
[2] client can choose to do its own redelta here
[3] reordering is needed because otherwise the pull does a lot of extra
work on the server
[4] reordering isn't needed because client can get deltabase in bundle
format
Currently, the default is to reorder on GD-servers, and not otherwise. A new
setting, bundle.reorder, has been added to override the default reordering
behavior. It can be set to either 'auto' (the default), or any true or false
value as a standard boolean setting, to either force the reordering on or off
regardless of generaldelta.
Some timing data from a relatively branch test repository follows. All
bundling is done with --all --type none options.
Non-generaldelta, non-shrunk repo:
-----------------------------------
Size: 276M
Without reorder (default):
Bundle time: 14.4 seconds
Bundle size: 939M
With reorder:
Bundle time: 1 minute, 29.3 seconds
Bundle size: 381M
Generaldelta, non-shrunk repo:
-----------------------------------
Size: 87M
Without reorder:
Bundle time: 2 minutes, 1.4 seconds
Bundle size: 939M
With reorder (default):
Bundle time: 25.5 seconds
Bundle size: 381M
Sune Foldager <cryo@cyanite.org> [Wed, 18 May 2011 23:11:34 +0200] rev 14364
revlogdag: add linearize function
See the docstring for a detailed explanation. The linearizer was originally
written by Benoit Boissinot.
Martin Geisler <mg@lazybytes.net> [Wed, 18 May 2011 19:30:17 +0200] rev 14363
localrepo, sshrepo: use Boolean create argument in __init__
Martin Geisler <mg@lazybytes.net> [Wed, 18 May 2011 19:25:34 +0200] rev 14362
commands: replace 'x = f(); return x' with 'return f()'
Martin Geisler <mg@lazybytes.net> [Wed, 18 May 2011 19:22:55 +0200] rev 14361
merge with stable