ref_resolves_to_object(): new function

Extract new function ref_resolves_to_object() from entry_resolves_to_object(). It can be used even if there is no ref_entry at hand. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Michael Haggerty committed Jun 18, 2016 at 06:15 UTC a873924483ec6ec548e94d723fe62875b1a4ec93
1 file changed +20 -7
refs/files-backend.c
+20 -7
@@ -513,21 +513,34 @@ static void sort_ref_dir(struct ref_dir *dir)
513 }
514
515 /*
516 - * Return true iff the reference described by entry can be resolved to
517 - * an object in the database. Emit a warning if the referred-to
518 - * object does not exist.
516 + * Return true if refname, which has the specified oid and flags, can
517 + * be resolved to an object in the database. If the referred-to object
518 + * does not exist, emit a warning and return false.
519 */
520 -static int entry_resolves_to_object(struct ref_entry *entry)
520 +static int ref_resolves_to_object(const char *refname,
521 + const struct object_id *oid,
522 + unsigned int flags)
523 {
522 - if (entry->flag & REF_ISBROKEN)
524 + if (flags & REF_ISBROKEN)
525 return 0;
524 - if (!has_sha1_file(entry->u.value.oid.hash)) {
525 - error("%s does not point to a valid object!", entry->name);
526 + if (!has_sha1_file(oid->hash)) {
527 + error("%s does not point to a valid object!", refname);
528 return 0;
529 }
530 return 1;
531 }
532
533 +/*
534 + * Return true if the reference described by entry can be resolved to
535 + * an object in the database; otherwise, emit a warning and return
536 + * false.
537 + */
538 +static int entry_resolves_to_object(struct ref_entry *entry)
539 +{
540 + return ref_resolves_to_object(entry->name,
541 + &entry->u.value.oid, entry->flag);
542 +}
543 +
544 /*
545 * current_ref is a performance hack: when iterating over references
546 * using the for_each_ref*() functions, current_ref is set to the