ui-summary: (THEME) Rework what is shown in summary page

Now clone and branches are shown next to commits and tags, branches only
show name and age, clone does not create links, and file listing
(alongside readme) is shown below

1 files changed, 41 insertions, 0 deletions

diff --git a/ui-tree.c b/ui-tree.c
index 27cbd46..9616e33 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -431,3 +431,44 @@ void cgit_print_tree(const char *rev, char *path)
 cleanup:
 	free(walk_tree_ctx.curr_rev);
 }
+
+void cgit_print_tree_component(const char *rev, char *path)
+{
+	struct object_id oid;
+	struct commit *commit;
+	struct walk_tree_context walk_tree_ctx = {
+		.match_path = path,
+		.state = 0
+	};
+	struct tree *tree;
+	struct pathspec paths = {
+		.nr = 0
+	};
+
+	if (!rev)
+		rev = ctx.qry.head;
+
+	if (path != NULL || repo_get_oid(the_repository, rev, &oid))
+		return;
+
+	commit = lookup_commit_reference(the_repository, &oid);
+	if (!commit || repo_parse_commit(the_repository, commit))
+		return;
+
+	walk_tree_ctx.curr_rev = xstrdup(rev);
+
+	tree = parse_tree_indirect(get_commit_tree_oid(commit));
+	if (tree) {
+		html("<table summary='tree listing' class='list'>\n");
+		html("<tr class='nohover'>");
+		html("<th class='left'>Name</th>");
+		html("<th class='right'>Size</th>");
+		html("<th/>");
+		html("</tr>\n");
+		read_tree(the_repository, tree, &paths, ls_item, &walk_tree_ctx);
+		html("</table>\n");
+		cgit_print_repo_readme_component(ctx.qry.path);
+	}
+
+	free(walk_tree_ctx.curr_rev);
+}