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-rw-r--r--Documentation/git-update-index.txt8
-rw-r--r--builtin/update-index.c16
2 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index aff0179..6bc2967 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -170,6 +170,14 @@ may not support it yet.
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.
+
\--::
Do not interpret any more arguments as options.
diff --git a/builtin/update-index.c b/builtin/update-index.c
index 5878986..6ea5c8d 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -741,6 +741,7 @@ static int reupdate_callback(struct parse_opt_ctx_t *ctx,
int cmd_update_index(int argc, const char **argv, const char *prefix)
{
int newfd, entries, has_errors = 0, line_termination = '\n';
+ int untracked_cache = -1;
int read_from_stdin = 0;
int prefix_length = prefix ? strlen(prefix) : 0;
int preferred_index_format = 0;
@@ -832,6 +833,8 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
N_("write index in this format")),
OPT_BOOL(0, "split-index", &split_index,
N_("enable or disable split index")),
+ OPT_BOOL(0, "untracked-cache", &untracked_cache,
+ N_("enable/disable untracked cache")),
OPT_END()
};
@@ -938,6 +941,19 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
the_index.split_index = NULL;
the_index.cache_changed |= SOMETHING_CHANGED;
}
+ if (untracked_cache > 0 && !the_index.untracked) {
+ struct untracked_cache *uc;
+
+ uc = xcalloc(1, sizeof(*uc));
+ uc->exclude_per_dir = ".gitignore";
+ /* should be the same flags used by git-status */
+ uc->dir_flags = DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
+ the_index.untracked = uc;
+ the_index.cache_changed |= UNTRACKED_CHANGED;
+ } else if (!untracked_cache && the_index.untracked) {
+ the_index.untracked = NULL;
+ the_index.cache_changed |= UNTRACKED_CHANGED;
+ }
if (active_cache_changed) {
if (newfd < 0) {