dir: add remove_untracked_cache()

Factor out code into remove_untracked_cache(), which will be used
in a later commit.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/dir.c b/dir.c
index 31eae37f5b..0d069c9054 100644
--- a/dir.c
+++ b/dir.c
@@ -1956,6 +1956,15 @@ void add_untracked_cache(struct index_state *istate)
 	istate->cache_changed |= UNTRACKED_CHANGED;
 }
 
+void remove_untracked_cache(struct index_state *istate)
+{
+	if (istate->untracked) {
+		free_untracked_cache(istate->untracked);
+		istate->untracked = NULL;
+		istate->cache_changed |= UNTRACKED_CHANGED;
+	}
+}
+
 static struct untracked_cache_dir *validate_untracked_cache(struct dir_struct *dir,
 						      int base_len,
 						      const struct pathspec *pathspec)