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git/Documentation/config/feature.txt

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repo-settings: create feature.manyFiles setting 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>
2019-08-13 21:37:47 +03:00
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.
repo-settings: create feature.experimental setting The 'feature.experimental' setting includes config options that are not committed to become defaults, but could use additional testing. Update the following config settings to take new defaults, and to use the repo_settings struct if not already using them: * 'pack.useSparse=true' * 'fetch.negotiationAlgorithm=skipping' In the case of fetch.negotiationAlgorithm, the existing logic would load the config option only when about to use the setting, so had a die() statement on an unknown string value. This is removed as now the config is parsed under prepare_repo_settings(). In general, this die() is probably misplaced and not valuable. A test was removed that checked this die() statement executed. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-13 21:37:48 +03:00
feature.experimental::
Enable config options that are new to Git, and are being considered for
future defaults. Config settings included here may be added or removed
with each release, including minor version updates. These settings may
have unintended interactions since they are so new. Please enable this
setting if you are interested in providing feedback on experimental
features. The new default values are:
+
* `fetch.negotiationAlgorithm=skipping` may improve fetch negotiation times by
skipping more commits at a time, reducing the number of round trips.
fetch: add fetch.writeCommitGraph config setting The commit-graph feature is now on by default, and is being written during 'git gc' by default. Typically, Git only writes a commit-graph when a 'git gc --auto' command passes the gc.auto setting to actualy do work. This means that a commit-graph will typically fall behind the commits that are being used every day. To stay updated with the latest commits, add a step to 'git fetch' to write a commit-graph after fetching new objects. The fetch.writeCommitGraph config setting enables writing a split commit-graph, so on average the cost of writing this file is very small. Occasionally, the commit-graph chain will collapse to a single level, and this could be slow for very large repos. For additional use, adjust the default to be true when feature.experimental is enabled. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-09-03 05:22:02 +03:00
+
config: let feature.experimental imply protocol.version=2 Git 2.26 used protocol v2 as its default protocol, but soon after release, users noticed that the protocol v2 negotiation code was prone to fail when fetching from some remotes that are far ahead of others (such as linux-next.git versus Linus's linux.git). That has been fixed by 0b07eecf6ed (Merge branch 'jt/v2-fetch-nego-fix', 2020-05-01), but to be cautious, we are using protocol v0 as the default in 2.27 to buy some time for any other unanticipated issues to surface. To that end, let's ensure that users requesting the bleeding edge using the feature.experimental flag *do* get protocol v2. This way, we can gain experience with a wider audience for the new protocol version and be more confident when it is time to enable it by default for all users in some future Git version. Implementation note: this isn't with the rest of the feature.experimental options in repo-settings.c because those are tied to a repository object, whereas this code path is used for operations like "git ls-remote" that do not require a repository. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-21 05:15:33 +03:00
* `protocol.version=2` speeds up fetches from repositories with many refs by
allowing the client to specify which refs to list before the server lists
them.
repo-settings: create feature.experimental setting The 'feature.experimental' setting includes config options that are not committed to become defaults, but could use additional testing. Update the following config settings to take new defaults, and to use the repo_settings struct if not already using them: * 'pack.useSparse=true' * 'fetch.negotiationAlgorithm=skipping' In the case of fetch.negotiationAlgorithm, the existing logic would load the config option only when about to use the setting, so had a die() statement on an unknown string value. This is removed as now the config is parsed under prepare_repo_settings(). In general, this die() is probably misplaced and not valuable. A test was removed that checked this die() statement executed. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-13 21:37:48 +03:00
repo-settings: create feature.manyFiles setting 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>
2019-08-13 21:37:47 +03:00
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.