Add graph_parent_is_merge

diff --git a/tig.c b/tig.c
index 8549620769546a21d5f1a90712336025ac063874..0ec81b8874560d9149a3e0e6a60f714f04f29949 100644 (file)
--- a/tig.c
+++ b/tig.c
@@ -2807,6 +2807,12 @@ static struct rev_stack graph_stacks[3] = {
        { &graph_stacks[1], &graph_stacks[0], &graph_parents[2] },
 };
 
+static inline bool
+graph_parent_is_merge(struct rev_stack *graph)
+{
+       return graph->parents->size > 1;
+}
+
 static void
 reset_rev_graph(struct rev_stack *graph)
 {
@@ -2856,7 +2862,7 @@ draw_rev_graph(struct rev_stack *graph)
 
        for (i = 0; i < graph->pos; i++) {
                append_to_rev_graph(graph, line);
-               if (graph->prev->parents->size > 1 &&
+               if (graph_parent_is_merge(graph->prev) &&
                    graph->prev->pos == i) {
                        separator = '`';
                        line = '.';
@@ -2878,7 +2884,7 @@ draw_rev_graph(struct rev_stack *graph)
        for (; i < graph->size; i++) {
                append_to_rev_graph(graph, separator);
                append_to_rev_graph(graph, line);
-               if (graph->prev->parents->size > 1) {
+               if (graph_parent_is_merge(graph->prev)) {
                        if (i < graph->prev->pos + graph->parents->size) {
                                separator = '`';
                                line = '.';
@@ -2918,7 +2924,8 @@ update_rev_graph(struct rev_stack *graph)
                push_rev_stack(graph->next, graph->rev[i]);
 
        draw_rev_graph(graph);
-       if (graph->prev->parents->size > 1 &&
+
+       if (graph_parent_is_merge(graph->prev) &&
            graph->prev->pos < graph->prev->size - 1 &&
            graph->size == graph->prev->size + graph->prev->parents->size - 1) {
                i = graph->prev->pos + graph->prev->parents->size - 1;
@@ -2929,6 +2936,7 @@ update_rev_graph(struct rev_stack *graph)
                        i++;
                }
        }
+
        reset_rev_graph(graph->prev);
 }