Library function to check for unmerged index entries

It's small, but it was in three places already, so it should be in the
library.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/read-cache.c b/read-cache.c
index e45f4b3d61..22d7b46245 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -1176,6 +1176,16 @@ int discard_index(struct index_state *istate)
 	return 0;
 }
 
+int unmerged_index(struct index_state *istate)
+{
+	int i;
+	for (i = 0; i < istate->cache_nr; i++) {
+		if (ce_stage(istate->cache[i]))
+			return 1;
+	}
+	return 0;
+}
+
 #define WRITE_BUFFER_SIZE 8192
 static unsigned char write_buffer[WRITE_BUFFER_SIZE];
 static unsigned long write_buffer_len;