Signed-off-by: David Turner <dturner@xxxxxxxxxxxxxxxx>
---
refs.c | 5 +++++
refs/files-backend.c | 4 +++-
refs/refs-internal.h | 9 +++++++++
3 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/refs.c b/refs.c
index b43d9ea..deeb7cf 100644
--- a/refs.c
+++ b/refs.c
@@ -1122,6 +1122,11 @@ int delete_refs(struct string_list *refnames)
return the_refs_backend->delete_refs(refnames);
}
+int rename_ref(const char *oldref, const char *newref, const char *logmsg)
+{
+ return the_refs_backend->rename_ref(oldref, newref, logmsg);
+}
+
const char *resolve_ref_unsafe(const char *ref, int resolve_flags,
unsigned char *sha1, int *flags)
{
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 7f8c3d1..f14b6f9 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -2484,7 +2484,8 @@ static int commit_ref_update(struct ref_lock *lock,
const unsigned char *sha1, const char *logmsg,
int flags, struct strbuf *err);
-int rename_ref(const char *oldrefname, const char *newrefname, const char *logmsg)
+static int files_rename_ref(const char *oldrefname, const char *newrefname,
+ const char *logmsg)
{
unsigned char sha1[20], orig_sha1[20];
int flag = 0, logmoved = 0;
@@ -3575,6 +3576,7 @@ struct ref_storage_be refs_be_files = {
files_peel_ref,
files_create_symref,
files_delete_refs,
+ files_rename_ref,
files_resolve_ref_unsafe,
files_verify_refname_available,
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 1373c02..36a5bf8 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -67,6 +67,13 @@ int do_for_each_per_worktree_ref(const char *submodule, const char *base,
each_ref_fn fn, int trim, int flags,
void *cb_data);
+/*
+ * Check if the new name does not conflict with any existing refs
+ * (other than possibly the old ref). Return 0 if the ref can be
+ * renamed to the new name.
+ */
+int rename_ref_available(const char *oldname, const char *newname);
+
enum peel_status {
/* object was peeled successfully: */
PEEL_PEELED = 0,
@@ -246,6 +253,7 @@ typedef const char *resolve_ref_unsafe_fn(const char *ref,
typedef int verify_refname_available_fn(const char *refname, struct string_list *extra, struct string_list *skip, struct strbuf *err);
typedef int resolve_gitlink_ref_fn(const char *path, const char *refname,
unsigned char *sha1);
+typedef int rename_ref_fn(const char *oldref, const char *newref, const char *logmsg);
/* iteration methods */
typedef int head_ref_fn(each_ref_fn fn, void *cb_data);
@@ -284,6 +292,7 @@ struct ref_storage_be {
peel_ref_fn *peel_ref;
create_symref_fn *create_symref;
delete_refs_fn *delete_refs;
+ rename_ref_fn *rename_ref;
resolve_ref_unsafe_fn *resolve_ref_unsafe;
verify_refname_available_fn *verify_refname_available;
--
2.4.2.749.g730654d-twtrsrc
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