refs: pass ref store when detecting dangling symrefs

Both `warn_dangling_symref()` and `warn_dangling_symrefs()` derive the
ref store via `the_repository`. Adapt them to instead take in the ref
store as a parameter. While at it, rename the functions to have a `ref_`
prefix to align them with other functions that take a ref store.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: pks-t

builtin/fetch.c

@@ -1412,7 +1412,8 @@ static int prune_refs(struct display_state *display_state,
 					   _("(none)"), ref->name,
 					   &ref->new_oid, &ref->old_oid,
 					   summary_width);
-			warn_dangling_symref(stderr, dangling_msg, ref->name);
+			refs_warn_dangling_symref(get_main_ref_store(the_repository),
+						  stderr, dangling_msg, ref->name);
 		}
 	}
 

builtin/remote.c

@@ -1477,7 +1477,8 @@ static int prune_remote(const char *remote, int dry_run)
 			       abbrev_ref(refname, "refs/remotes/"));
 	}
 
-	warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
+	refs_warn_dangling_symrefs(get_main_ref_store(the_repository),
+				   stdout, dangling_msg, &refs_to_prune);
 
 	string_list_clear(&refs_to_prune, 0);
 	free_remote_ref_states(&states);

refs.c

@@ -447,6 +447,7 @@ enum peel_status peel_object(const struct object_id *name, struct object_id *oid
 }
 
 struct warn_if_dangling_data {
+	struct ref_store *refs;
 	FILE *fp;
 	const char *refname;
 	const struct string_list *refnames;
@@ -463,8 +464,7 @@ static int warn_if_dangling_symref(const char *refname,
 	if (!(flags & REF_ISSYMREF))
 		return 0;
 
-	resolves_to = refs_resolve_ref_unsafe(get_main_ref_store(the_repository),
-					      refname, 0, NULL, NULL);
+	resolves_to = refs_resolve_ref_unsafe(d->refs, refname, 0, NULL, NULL);
 	if (!resolves_to
 	    || (d->refname
 		? strcmp(resolves_to, d->refname)
@@ -477,28 +477,28 @@ static int warn_if_dangling_symref(const char *refname,
 	return 0;
 }
 
-void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname)
+void refs_warn_dangling_symref(struct ref_store *refs, FILE *fp,
+			       const char *msg_fmt, const char *refname)
 {
-	struct warn_if_dangling_data data;
-
-	data.fp = fp;
-	data.refname = refname;
-	data.refnames = NULL;
-	data.msg_fmt = msg_fmt;
-	refs_for_each_rawref(get_main_ref_store(the_repository),
-			     warn_if_dangling_symref, &data);
+	struct warn_if_dangling_data data = {
+		.refs = refs,
+		.fp = fp,
+		.refname = refname,
+		.msg_fmt = msg_fmt,
+	};
+	refs_for_each_rawref(refs, warn_if_dangling_symref, &data);
 }
 
-void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames)
+void refs_warn_dangling_symrefs(struct ref_store *refs, FILE *fp,
+				const char *msg_fmt, const struct string_list *refnames)
 {
-	struct warn_if_dangling_data data;
-
-	data.fp = fp;
-	data.refname = NULL;
-	data.refnames = refnames;
-	data.msg_fmt = msg_fmt;
-	refs_for_each_rawref(get_main_ref_store(the_repository),
-			     warn_if_dangling_symref, &data);
+	struct warn_if_dangling_data data = {
+		.refs = refs,
+		.fp = fp,
+		.refnames = refnames,
+		.msg_fmt = msg_fmt,
+	};
+	refs_for_each_rawref(refs, warn_if_dangling_symref, &data);
 }
 
 int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)

refs.h

@@ -388,9 +388,10 @@ static inline const char *has_glob_specials(const char *pattern)
 	return strpbrk(pattern, "?*[");
 }
 
-void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname);
-void warn_dangling_symrefs(FILE *fp, const char *msg_fmt,
-			   const struct string_list *refnames);
+void refs_warn_dangling_symref(struct ref_store *refs, FILE *fp,
+			       const char *msg_fmt, const char *refname);
+void refs_warn_dangling_symrefs(struct ref_store *refs, FILE *fp,
+				const char *msg_fmt, const struct string_list *refnames);
 
 /*
  * Flags for controlling behaviour of pack_refs()