[PATCH v2 10/23] refs-common.c: move read_ref, read_ref_full and ref_exists to common

[Ronnie Sahlberg <sahlberg@google.com>]

These functions do not depend on the backend implementation so we
can move them to the common code.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
---
 refs-common.c | 18 ++++++++++++++++++
 refs.c        | 18 ------------------
 2 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/refs-common.c b/refs-common.c
index ab3a118..37d3d14 100644
--- a/refs-common.c
+++ b/refs-common.c
@@ -547,3 +547,21 @@ void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_li
 	data.msg_fmt = msg_fmt;
 	for_each_rawref(warn_if_dangling_symref, &data);
 }
+
+int read_ref_full(const char *refname, unsigned char *sha1, int flags, int *ref_flag)
+{
+	if (resolve_ref_unsafe(refname, sha1, flags, ref_flag))
+		return 0;
+	return -1;
+}
+
+int read_ref(const char *refname, unsigned char *sha1)
+{
+	return read_ref_full(refname, sha1, RESOLVE_REF_READING, NULL);
+}
+
+int ref_exists(const char *refname)
+{
+	unsigned char sha1[20];
+	return !!resolve_ref_unsafe(refname, sha1, RESOLVE_REF_READING, NULL);
+}
diff --git a/refs.c b/refs.c
index 40c329b..a94378e 100644
--- a/refs.c
+++ b/refs.c
@@ -1514,24 +1514,6 @@ struct ref_filter {
 	void *cb_data;
 };
 
-int read_ref_full(const char *refname, unsigned char *sha1, int flags, int *ref_flag)
-{
-	if (resolve_ref_unsafe(refname, sha1, flags, ref_flag))
-		return 0;
-	return -1;
-}
-
-int read_ref(const char *refname, unsigned char *sha1)
-{
-	return read_ref_full(refname, sha1, RESOLVE_REF_READING, NULL);
-}
-
-int ref_exists(const char *refname)
-{
-	unsigned char sha1[20];
-	return !!resolve_ref_unsafe(refname, sha1, RESOLVE_REF_READING, NULL);
-}
-
 static int filter_refs(const char *refname, const unsigned char *sha1, int flags,
 		       void *data)
 {
-- 
2.0.1.556.g3edca4c