path: root/Documentation/git-update-index.txt
diff options
Diffstat (limited to 'Documentation/git-update-index.txt')
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index 56626a0..82eca6f 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -161,6 +161,17 @@ may not support it yet.
Only meaningful with `--stdin` or `--index-info`; paths are
separated with NUL character instead of LF.
+ Enable or disable split index mode. If enabled, the index is
+ split into two files, $GIT_DIR/index and $GIT_DIR/sharedindex.<SHA-1>.
+ Changes are accumulated in $GIT_DIR/index while the shared
+ index file contains all index entries stays unchanged. If
+ split-index mode is already enabled and `--split-index` is
+ given again, all changes in $GIT_DIR/index are pushed back to
+ the shared index file. This mode is designed for very large
+ indexes that take a signficant amount of time to read or write.
Do not interpret any more arguments as options.