Mercurial > public > mercurial-scm > hg
comparison mercurial/configitems.py @ 44382:f0027a3dd7cb
revlog-compression: update the config to be a list
format.revlog-compression is now a list of engine, the first supported one is to
be used. Doing this have several benefits:
1) this is fully backward compatible, config using a single entry will be read
as a single item list, not changing any behavior.
2) This open the way to use zstd by default without impacting platform were it
is not available. This will be done in a later changesets.
Using zstd provide a significant performance boost explained in : bb271ec2fbfb.
However zstd is not available in some cases, A notable example is the `--pure`
version of Mercurial which doesn't come with zstd support.
Differential Revision: https://phab.mercurial-scm.org/D8148
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Wed, 19 Feb 2020 17:30:04 +0100 |
| parents | f7459da77f23 |
| children | edc8504bc26b |
comparison
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| 44381:454bc51f114c | 44382:f0027a3dd7cb |
|---|---|
| 757 b'format', b'sparse-revlog', default=True, | 757 b'format', b'sparse-revlog', default=True, |
| 758 ) | 758 ) |
| 759 coreconfigitem( | 759 coreconfigitem( |
| 760 b'format', | 760 b'format', |
| 761 b'revlog-compression', | 761 b'revlog-compression', |
| 762 default=b'zlib', | 762 default=lambda: [b'zlib'], |
| 763 alias=[(b'experimental', b'format.compression')], | 763 alias=[(b'experimental', b'format.compression')], |
| 764 ) | 764 ) |
| 765 coreconfigitem( | 765 coreconfigitem( |
| 766 b'format', b'usefncache', default=True, | 766 b'format', b'usefncache', default=True, |
| 767 ) | 767 ) |