refs: make create_symref() virtual

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

diff --git a/refs.c b/refs.c
index cdd78b97ac4bfecab0b6e04767ae1dabd93de2a3..312c76619f75846aa1c4c363430a3ff929bf3ac3 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -1428,6 +1428,15 @@ int pack_refs(unsigned int flags)
        return refs->be->pack_refs(refs, flags);
 }
 
+int create_symref(const char *ref_target, const char *refs_heads_master,
+                 const char *logmsg)
+{
+       struct ref_store *refs = get_ref_store(NULL);
+
+       return refs->be->create_symref(refs, ref_target, refs_heads_master,
+                                      logmsg);
+}
+
 int ref_transaction_commit(struct ref_transaction *transaction,
                           struct strbuf *err)
 {

diff --git a/refs/files-backend.c b/refs/files-backend.c
index 5ba2804a86174c8ce5494fe1423b7f459f2287f4..fc67cc6ec74725a28d212e525aea5a4ed64fc785 100644 (file)
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -3011,12 +3011,16 @@ static int create_symref_locked(struct ref_lock *lock, const char *refname,
        return 0;
 }
 
-int create_symref(const char *refname, const char *target, const char *logmsg)
+static int files_create_symref(struct ref_store *ref_store,
+                              const char *refname, const char *target,
+                              const char *logmsg)
 {
        struct strbuf err = STRBUF_INIT;
        struct ref_lock *lock;
        int ret;
 
+       files_downcast(ref_store, 0, "create_symref");
+
        lock = lock_ref_sha1_basic(refname, NULL, NULL, NULL, REF_NODEREF, NULL,
                                   &err);
        if (!lock) {
@@ -4023,6 +4027,7 @@ struct ref_storage_be refs_be_files = {
        files_transaction_commit,
 
        files_pack_refs,
+       files_create_symref,
 
        files_read_raw_ref,
        files_verify_refname_available

diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 256f7f581f97781cb46d3b77864f52153924354c..bf96503856e0440ec2a25f3fab1d212c47b2d949 100644 (file)
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -501,6 +501,10 @@ typedef int ref_transaction_commit_fn(struct ref_store *refs,
                                      struct strbuf *err);
 
 typedef int pack_refs_fn(struct ref_store *ref_store, unsigned int flags);
+typedef int create_symref_fn(struct ref_store *ref_store,
+                            const char *ref_target,
+                            const char *refs_heads_master,
+                            const char *logmsg);
 
 /*
  * Read a reference from the specified reference store, non-recursively.
@@ -557,6 +561,7 @@ struct ref_storage_be {
        ref_transaction_commit_fn *transaction_commit;
 
        pack_refs_fn *pack_refs;
+       create_symref_fn *create_symref;
 
        read_raw_ref_fn *read_raw_ref;
        verify_refname_available_fn *verify_refname_available;