refs: make create_symref() virtual

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

Michael Haggerty committed Sep 4, 2016 at 18:08 UTC 284689ba0ff7506d581bcee7481a2621492135ef
3 files changed +20 -1
refs.c
+9
@@ -1428,6 +1428,15 @@ int pack_refs(unsigned int flags)
1428 return refs->be->pack_refs(refs, flags);
1429 }
1430
1431 +int create_symref(const char *ref_target, const char *refs_heads_master,
1432 + const char *logmsg)
1433 +{
1434 + struct ref_store *refs = get_ref_store(NULL);
1435 +
1436 + return refs->be->create_symref(refs, ref_target, refs_heads_master,
1437 + logmsg);
1438 +}
1439 +
1440 int ref_transaction_commit(struct ref_transaction *transaction,
1441 struct strbuf *err)
1442 {
refs/files-backend.c
+6 -1
@@ -3011,12 +3011,16 @@ static int create_symref_locked(struct ref_lock *lock, const char *refname,
3011 return 0;
3012 }
3013
3014 -int create_symref(const char *refname, const char *target, const char *logmsg)
3014 +static int files_create_symref(struct ref_store *ref_store,
3015 + const char *refname, const char *target,
3016 + const char *logmsg)
3017 {
3018 struct strbuf err = STRBUF_INIT;
3019 struct ref_lock *lock;
3020 int ret;
3021
3022 + files_downcast(ref_store, 0, "create_symref");
3023 +
3024 lock = lock_ref_sha1_basic(refname, NULL, NULL, NULL, REF_NODEREF, NULL,
3025 &err);
3026 if (!lock) {
@@ -4023,6 +4027,7 @@ struct ref_storage_be refs_be_files = {
4027 files_transaction_commit,
4028
4029 files_pack_refs,
4030 + files_create_symref,
4031
4032 files_read_raw_ref,
4033 files_verify_refname_available
refs/refs-internal.h
+5
@@ -501,6 +501,10 @@ typedef int ref_transaction_commit_fn(struct ref_store *refs,
501 struct strbuf *err);
502
503 typedef int pack_refs_fn(struct ref_store *ref_store, unsigned int flags);
504 +typedef int create_symref_fn(struct ref_store *ref_store,
505 + const char *ref_target,
506 + const char *refs_heads_master,
507 + const char *logmsg);
508
509 /*
510 * Read a reference from the specified reference store, non-recursively.
@@ -557,6 +561,7 @@ struct ref_storage_be {
561 ref_transaction_commit_fn *transaction_commit;
562
563 pack_refs_fn *pack_refs;
564 + create_symref_fn *create_symref;
565
566 read_raw_ref_fn *read_raw_ref;
567 verify_refname_available_fn *verify_refname_available;