[RFC/PATCH 4/8] update-index: warn in case of split-index incoherency

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

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 builtin/update-index.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/builtin/update-index.c b/builtin/update-index.c
index f06fe80..2b8aaa6 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -1108,10 +1108,19 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
 		strbuf_release(&buf);
 	}
 
-	if (split_index > 0)
+	if (split_index > 0) {
+		if (git_config_get_split_index() == 0)
+			warning("core.splitIndex is set to false; "
+				"remove or change it, if you really want to "
+				"enable split index");
 		add_split_index(&the_index);
-	else if (!split_index && the_index.split_index)
+	} else if (!split_index && the_index.split_index) {
+		if (git_config_get_split_index() == 1)
+			warning("core.splitIndex is set to true; "
+				"remove or change it, if you really want to "
+				"disable split index");
 		remove_split_index(&the_index);
+	}
 
 	switch (untracked_cache) {
 	case UC_UNSPECIFIED:
-- 
2.9.0.250.g7087ccc.dirty