[PATCH v4 05/22] read-cache: add and then use tweak_split_index()

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

This will make us use the split-index feature or not depending
on the value of the "core.splitIndex" config variable.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 read-cache.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/read-cache.c b/read-cache.c
index 9054369dd0..99bc274b8d 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -1558,10 +1558,27 @@ static void tweak_untracked_cache(struct index_state *istate)
 	}
 }
 
+static void tweak_split_index(struct index_state *istate)
+{
+	switch (git_config_get_split_index()) {
+	case -1: /* unset: do nothing */
+		break;
+	case 0: /* false */
+		remove_split_index(istate);
+		break;
+	case 1: /* true */
+		add_split_index(istate);
+		break;
+	default: /* unknown value: do nothing */
+		break;
+	}
+}
+
 static void post_read_index_from(struct index_state *istate)
 {
 	check_ce_order(istate);
 	tweak_untracked_cache(istate);
+	tweak_split_index(istate);
 }
 
 /* remember to discard_cache() before reading a different cache! */
-- 
2.12.0.22.g0672473d40