pretty: pass graph width to pretty formatting for use in '%>|(N)'jk/graph-format-padding

Pass graph width to pretty formatting, to make N in '%>|(N)'
include columns consumed by graph rendered when --graph option
is in use.

For example, in the output of

  git log --all --graph --pretty='format: [%>|(20)%h] %ar%d'

this change will make all commit hashes align at 20th column from
the edge of the terminal, not from the edge of the graph.

Signed-off-by: Josef Kufner <josef@kufner.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/graph.c b/graph.c
index c25a09a8fd..48024113a6 100644
--- a/graph.c
+++ b/graph.c
@@ -671,6 +671,13 @@ static void graph_output_padding_line(struct git_graph *graph,
 	graph_pad_horizontally(graph, sb, graph->num_new_columns * 2);
 }
 
+
+int graph_width(struct git_graph *graph)
+{
+	return graph->width;
+}
+
+
 static void graph_output_skip_line(struct git_graph *graph, struct strbuf *sb)
 {
 	/*