git_config_colorbool: refactor stdout_is_tty handling

diff --git a/graph.c b/graph.c
index 2f6893dc4f97dfbccad6f22f66861c24021a3c46..556834a973863fa2bc3f9f8d02fe16cabc4359d8 100644 (file)
--- a/graph.c
+++ b/graph.c
@@ -347,7 +347,7 @@ static struct commit_list *first_interesting_parent(struct git_graph *graph)
 
 static unsigned short graph_get_current_column_color(const struct git_graph *graph)
 {
-       if (!DIFF_OPT_TST(&graph->revs->diffopt, COLOR_DIFF))
+       if (graph->revs->diffopt.use_color <= 0)
                return column_colors_max;
        return graph->default_column_color;
 }