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repo-settings: create feature.manyFiles setting

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The feature.manyFiles setting is suitable for repos with many
files in the working directory. By setting index.version=4 and
core.untrackedCache=true, commands such as 'git status' should
improve.

While adding this setting, modify the index version precedence
tests to check how this setting overrides the default for
index.version is unset.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee
2019-08-13 11:37:47 -07:00
committed by Junio C Hamano
parent ad0fb65999
commit c6cc4c5afd
6 changed files with 51 additions and 7 deletions
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4
Documentation/config/core.txt
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@ -86,7 +86,9 @@ core.untrackedCache::
it will automatically be removed, if set to `false`. Before
setting it to `true`, you should check that mtime is working
properly on your system.
See linkgit:git-update-index[1]. `keep` by default.
See linkgit:git-update-index[1]. `keep` by default, unless
`feature.manyFiles` is enabled which sets this setting to
`true` by default.
core.checkStat::
When missing or is set to `default`, many fields in the stat

15
Documentation/config/feature.txt Normal file
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@ -0,0 +1,15 @@
feature.*::
The config settings that start with `feature.` modify the defaults of
a group of other config settings. These groups are created by the Git
developer community as recommended defaults and are subject to change.
In particular, new config options may be added with different defaults.
feature.manyFiles::
Enable config options that optimize for repos with many files in the
working directory. With many files, commands such as `git status` and
`git checkout` may be slow and these new defaults improve performance:
+
* `index.version=4` enables path-prefix compression in the index.
+
* `core.untrackedCache=true` enables the untracked cache. This setting assumes
that mtime is working on your machine.

1
Documentation/config/index.txt
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@ -24,3 +24,4 @@ index.threads::
index.version::
Specify the version with which new index files should be
initialized. This does not affect existing repositories.
If `feature.manyFiles` is enabled, then the default is 4.