From c6cc4c5afd2efd5f8081a3839b48d003de4e094f Mon Sep 17 00:00:00 2001 From: Derrick Stolee Date: Tue, 13 Aug 2019 11:37:47 -0700 Subject: [PATCH] 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 Signed-off-by: Junio C Hamano --- Documentation/config.txt | 2 ++ Documentation/config/core.txt | 4 +++- Documentation/config/feature.txt | 15 +++++++++++++++ Documentation/config/index.txt | 1 + repo-settings.c | 5 ++++- t/t1600-index.sh | 31 ++++++++++++++++++++++++++----- 6 files changed, 51 insertions(+), 7 deletions(-) create mode 100644 Documentation/config/feature.txt diff --git a/Documentation/config.txt b/Documentation/config.txt index e3f5bc3396..77f3b1486b 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -345,6 +345,8 @@ include::config/difftool.txt[] include::config/fastimport.txt[] +include::config/feature.txt[] + include::config/fetch.txt[] include::config/format.txt[] diff --git a/Documentation/config/core.txt b/Documentation/config/core.txt index e66d79fd76..852d2ba37a 100644 --- a/Documentation/config/core.txt +++ b/Documentation/config/core.txt @@ -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 diff --git a/Documentation/config/feature.txt b/Documentation/config/feature.txt new file mode 100644 index 0000000000..8ea198a642 --- /dev/null +++ b/Documentation/config/feature.txt @@ -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. diff --git a/Documentation/config/index.txt b/Documentation/config/index.txt index f181503041..7cb50b37e9 100644 --- a/Documentation/config/index.txt +++ b/Documentation/config/index.txt @@ -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. diff --git a/repo-settings.c b/repo-settings.c index abbc6566f8..d5bf9069f4 100644 --- a/repo-settings.c +++ b/repo-settings.c @@ -36,9 +36,12 @@ void prepare_repo_settings(struct repository *r) free(strval); } - if (!repo_config_get_bool(r, "pack.usesparse", &value)) r->settings.pack_use_sparse = value; + if (!repo_config_get_bool(r, "feature.manyfiles", &value) && value) { + UPDATE_DEFAULT_BOOL(r->settings.index_version, 4); + UPDATE_DEFAULT_BOOL(r->settings.core_untracked_cache, UNTRACKED_CACHE_WRITE); + } /* Hack for test programs like test-dump-untracked-cache */ if (ignore_untracked_cache_config) diff --git a/t/t1600-index.sh b/t/t1600-index.sh index 42962ed7d4..c77721b580 100755 --- a/t/t1600-index.sh +++ b/t/t1600-index.sh @@ -59,17 +59,38 @@ test_expect_success 'out of bounds index.version issues warning' ' ) ' -test_expect_success 'GIT_INDEX_VERSION takes precedence over config' ' +test_index_version () { + INDEX_VERSION_CONFIG=$1 && + FEATURE_MANY_FILES=$2 && + ENV_VAR_VERSION=$3 + EXPECTED_OUTPUT_VERSION=$4 && ( rm -f .git/index && - GIT_INDEX_VERSION=4 && - export GIT_INDEX_VERSION && - git config --add index.version 2 && + rm -f .git/config && + if test "$INDEX_VERSION_CONFIG" -ne 0 + then + git config --add index.version $INDEX_VERSION_CONFIG + fi && + git config --add feature.manyFiles $FEATURE_MANY_FILES + if test "$ENV_VAR_VERSION" -ne 0 + then + GIT_INDEX_VERSION=$ENV_VAR_VERSION && + export GIT_INDEX_VERSION + else + unset GIT_INDEX_VERSION + fi && git add a 2>&1 && - echo 4 >expect && + echo $EXPECTED_OUTPUT_VERSION >expect && test-tool index-version <.git/index >actual && test_cmp expect actual ) +} + +test_expect_success 'index version config precedence' ' + test_index_version 2 false 4 4 && + test_index_version 2 true 0 2 && + test_index_version 0 true 0 4 && + test_index_version 0 true 2 2 ' test_done -- 2.47.1