Mercurial > hg
view tests/test-repo-compengines.t @ 33279:7912404b70f2
transaction: apply checkambig=True only on limited files for similarity
Now, transaction can determine whether avoidance of file stat
ambiguity is needed for each files, by blacklist "checkambigfiles".
For similarity to truncation in _playback(), this patch apply
checkambig=True only on limited files in code paths below.
- restoring files by util.copyfile(), in _playback()
(checkambigfiles itself is examined at first, because it as a
keyword argument might be None)
- writing files at finalization of transaction, in _generatefiles()
This patch reduces cost of checking stat at writing out and restoring
files, which aren't filecache-ed.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Tue, 04 Jul 2017 23:13:47 +0900 |
parents | 4c0a5a256ae8 |
children | c2c8962a9465 |
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A new repository uses zlib storage, which doesn't need a requirement $ hg init default $ cd default $ cat .hg/requires dotencode fncache generaldelta revlogv1 store $ touch foo $ hg -q commit -A -m 'initial commit with a lot of repeated repeated repeated text to trigger compression' $ hg debugrevlog -c | grep 0x78 0x78 (x) : 1 (100.00%) 0x78 (x) : 110 (100.00%) $ cd .. Unknown compression engine to format.compression aborts $ hg --config experimental.format.compression=unknown init unknown abort: compression engine unknown defined by experimental.format.compression not available (run "hg debuginstall" to list available compression engines) [255] A requirement specifying an unknown compression engine results in bail $ hg init unknownrequirement $ cd unknownrequirement $ echo exp-compression-unknown >> .hg/requires $ hg log abort: repository requires features unknown to this Mercurial: exp-compression-unknown! (see https://mercurial-scm.org/wiki/MissingRequirement for more information) [255] $ cd .. #if zstd $ hg --config experimental.format.compression=zstd init zstd $ cd zstd $ cat .hg/requires dotencode exp-compression-zstd fncache generaldelta revlogv1 store $ touch foo $ hg -q commit -A -m 'initial commit with a lot of repeated repeated repeated text' $ hg debugrevlog -c | grep 0x28 0x28 : 1 (100.00%) 0x28 : 98 (100.00%) $ cd .. Specifying a new format.compression on an existing repo won't introduce data with that engine or a requirement $ cd default $ touch bar $ hg --config experimental.format.compression=zstd -q commit -A -m 'add bar with a lot of repeated repeated repeated text' $ cat .hg/requires dotencode fncache generaldelta revlogv1 store $ hg debugrevlog -c | grep 0x78 0x78 (x) : 2 (100.00%) 0x78 (x) : 199 (100.00%) #endif