[PATCH 6/8] dir: add remove_untracked_cache()

[Christian Couder <christian.couder@gmail.com>]

This new function will be used in a later patch.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 builtin/update-index.c | 3 +--
 dir.c                  | 6 ++++++
 dir.h                  | 1 +
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/builtin/update-index.c b/builtin/update-index.c
index 40530b0..e427657 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -1126,8 +1126,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
 		add_untracked_cache();
 		fprintf(stderr, _("Untracked cache enabled for '%s'\n"), get_git_work_tree());
 	} else if (untracked_cache == NO_UC && the_index.untracked) {
-		the_index.untracked = NULL;
-		the_index.cache_changed |= UNTRACKED_CHANGED;
+		remove_untracked_cache();
 		fprintf(stderr, _("Untracked cache disabled\n"));
 	}
 
diff --git a/dir.c b/dir.c
index 0f7e293..ffc0286 100644
--- a/dir.c
+++ b/dir.c
@@ -1952,6 +1952,12 @@ void add_untracked_cache(void)
 	the_index.cache_changed |= UNTRACKED_CHANGED;
 }
 
+void remove_untracked_cache(void)
+{
+	the_index.untracked = NULL;
+	the_index.cache_changed |= UNTRACKED_CHANGED;
+}
+
 static struct untracked_cache_dir *validate_untracked_cache(struct dir_struct *dir,
 						      int base_len,
 						      const struct pathspec *pathspec)
diff --git a/dir.h b/dir.h
index ee94c76..3e5114d 100644
--- a/dir.h
+++ b/dir.h
@@ -309,4 +309,5 @@ struct untracked_cache *read_untracked_extension(const void *data, unsigned long
 void write_untracked_extension(struct strbuf *out, struct untracked_cache *untracked);
 void add_untracked_ident(struct untracked_cache *);
 void add_untracked_cache(void);
+void remove_untracked_cache(void);
 #endif
-- 
2.6.3.478.g9f95483.dirty