refs: move REF_DELETING to refs.c

It is only used internally now. Document it a little bit better, too.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/refs.c b/refs.c
index ab2f2a92cd..5e6355c930 100644
--- a/refs.c
+++ b/refs.c
@@ -35,6 +35,12 @@ static unsigned char refname_disposition[256] = {
 };
 
 /*
+ * Flag passed to lock_ref_sha1_basic() telling it to tolerate broken
+ * refs (i.e., because the reference is about to be deleted anyway).
+ */
+#define REF_DELETING	0x02
+
+/*
  * Used as a flag to ref_transaction_delete when a loose ref is being
  * pruned.
  */