[PATCH v3 04/23] refs.c: move update_ref to refs.c

[Ronnie Sahlberg <sahlberg@google.com>]

This change moves update_ref() to the refs.c file since this function
does not contain any backend specific code.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
---
 refs-be-files.c | 23 -----------------------
 refs.c          | 25 +++++++++++++++++++++++++
 2 files changed, 25 insertions(+), 23 deletions(-)

diff --git a/refs-be-files.c b/refs-be-files.c
index 4a22513..eb66cf7 100644
--- a/refs-be-files.c
+++ b/refs-be-files.c
@@ -3576,29 +3576,6 @@ int transaction_delete_sha1(struct ref_transaction *transaction,
 				      old_sha1, flags, have_old, msg, err);
 }
 
-int update_ref(const char *action, const char *refname,
-	       const unsigned char *sha1, const unsigned char *oldval,
-	       int flags, struct strbuf *e)
-{
-	struct ref_transaction *t;
-	struct strbuf err = STRBUF_INIT;
-
-	t = transaction_begin(&err);
-	if (!t ||
-	    transaction_update_sha1(t, refname, sha1, oldval, flags,
-				    !!oldval, action, &err) ||
-	    transaction_commit(t, &err)) {
-		const char *str = "update_ref failed for ref '%s': %s";
-
-		transaction_free(t);
-		if (e)
-			strbuf_addf(e, str, refname, err.buf);
-		strbuf_release(&err);
-		return 1;
-	}
-	return 0;
-}
-
 static int ref_update_compare(const void *r1, const void *r2)
 {
 	const struct ref_update * const *u1 = r1;
diff --git a/refs.c b/refs.c
index 77492ff..5f6a1e7 100644
--- a/refs.c
+++ b/refs.c
@@ -1,3 +1,28 @@
 /*
  * Common refs code for all backends.
  */
+#include "cache.h"
+#include "refs.h"
+
+int update_ref(const char *action, const char *refname,
+	       const unsigned char *sha1, const unsigned char *oldval,
+	       int flags, struct strbuf *e)
+{
+	struct ref_transaction *t;
+	struct strbuf err = STRBUF_INIT;
+
+	t = transaction_begin(&err);
+	if (!t ||
+	    transaction_update_sha1(t, refname, sha1, oldval, flags,
+				    !!oldval, action, &err) ||
+	    transaction_commit(t, &err)) {
+		const char *str = "update_ref failed for ref '%s': %s";
+
+		transaction_free(t);
+		if (e)
+			strbuf_addf(e, str, refname, err.buf);
+		strbuf_release(&err);
+		return 1;
+	}
+	return 0;
+}
-- 
2.0.1.552.g1af257a