move load_ref_decorations() to log-tree.c and export it

log-tree.c is the ideal place for load_ref_decorations() and its
helper functions to live in, because the variable name_decoration
they're operating on is already located there, so move them thither.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/log-tree.c b/log-tree.c
index 30cd5bb228..2c1f3e673a 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -1,12 +1,48 @@
 #include "cache.h"
 #include "diff.h"
 #include "commit.h"
+#include "tag.h"
 #include "graph.h"
 #include "log-tree.h"
 #include "reflog-walk.h"
+#include "refs.h"
 
 struct decoration name_decoration = { "object names" };
 
+static void add_name_decoration(const char *prefix, const char *name, struct object *obj)
+{
+	int plen = strlen(prefix);
+	int nlen = strlen(name);
+	struct name_decoration *res = xmalloc(sizeof(struct name_decoration) + plen + nlen);
+	memcpy(res->name, prefix, plen);
+	memcpy(res->name + plen, name, nlen + 1);
+	res->next = add_decoration(&name_decoration, obj, res);
+}
+
+static int add_ref_decoration(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
+{
+	struct object *obj = parse_object(sha1);
+	if (!obj)
+		return 0;
+	add_name_decoration("", refname, obj);
+	while (obj->type == OBJ_TAG) {
+		obj = ((struct tag *)obj)->tagged;
+		if (!obj)
+			break;
+		add_name_decoration("tag: ", refname, obj);
+	}
+	return 0;
+}
+
+void load_ref_decorations(void)
+{
+	static int loaded;
+	if (!loaded) {
+		loaded = 1;
+		for_each_ref(add_ref_decoration, NULL);
+	}
+}
+
 static void show_parents(struct commit *commit, int abbrev)
 {
 	struct commit_list *p;