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-rw-r--r--Documentation/git-update-index.txt47
1 files changed, 36 insertions, 11 deletions
diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index d6de4a008c..f4e5a85351 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -17,6 +17,8 @@ SYNOPSIS
[--[no-]assume-unchanged]
[--[no-]skip-worktree]
[--ignore-submodules]
+ [--[no-]split-index]
+ [--[no-|force-]untracked-cache]
[--really-refresh] [--unresolve] [--again | -g]
[--info-only] [--index-info]
[-z] [--stdin] [--index-version <n>]
@@ -82,20 +84,18 @@ OPTIONS
Set the execute permissions on the updated files.
--[no-]assume-unchanged::
- When these flags are specified, the object names recorded
- for the paths are not updated. Instead, these options
- set and unset the "assume unchanged" bit for the
- paths. When the "assume unchanged" bit is on, Git stops
- checking the working tree files for possible
- modifications, so you need to manually unset the bit to
- tell Git when you change the working tree file. This is
+ When this flag is specified, the object names recorded
+ for the paths are not updated. Instead, this option
+ sets/unsets the "assume unchanged" bit for the
+ paths. When the "assume unchanged" bit is on, the user
+ promises not to change the file and allows Git to assume
+ that the working tree file matches what is recorded in
+ the index. If you want to change the working tree file,
+ you need to unset the bit to tell Git. This is
sometimes helpful when working with a big project on a
filesystem that has very slow lstat(2) system call
(e.g. cifs).
+
-This option can be also used as a coarse file-level mechanism
-to ignore uncommitted changes in tracked files (akin to what
-`.gitignore` does for untracked files).
Git will fail (gracefully) in case it needs to modify this file
in the index e.g. when merging in a commit;
thus, in case the assumed-untracked file is changed upstream,
@@ -161,6 +161,31 @@ may not support it yet.
Only meaningful with `--stdin` or `--index-info`; paths are
separated with NUL character instead of LF.
+--split-index::
+--no-split-index::
+ 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 $GIT_DIR/index are pushed back to
+ the shared index file. This mode is designed for very large
+ indexes that take a significant amount of time to read or write.
+
+--untracked-cache::
+--no-untracked-cache::
+ Enable or disable untracked cache extension. This could speed
+ up for commands that involve determining untracked files such
+ as `git status`. The underlying operating system and file
+ system must change `st_mtime` field of a directory if files
+ are added or deleted in that directory.
+
+--force-untracked-cache::
+ For safety, `--untracked-cache` performs tests on the working
+ directory to make sure untracked cache can be used. These
+ tests can take a few seconds. `--force-untracked-cache` can be
+ used to skip the tests.
+
\--::
Do not interpret any more arguments as options.
@@ -191,7 +216,7 @@ merging.
To pretend you have a file with mode and sha1 at path, say:
----------------
-$ git update-index --cacheinfo mode sha1 path
+$ git update-index --cacheinfo <mode>,<sha1>,<path>
----------------
'--info-only' is used to register files without placing them in the object