Add output_prefix_length to diff_options

Add output_prefix_length to diff_options. Initialize the value to 0 and only
set it when graph.c:diff_output_prefix_callback() is called.

Signed-off-by: Lucian Poston <lucian.poston@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/diff.h b/diff.h
index cb68743..19d762f 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -150,6 +150,7 @@ struct diff_options {
        diff_format_fn_t format_callback;
        void *format_callback_data;
        diff_prefix_fn_t output_prefix;
+       int output_prefix_length;
        void *output_prefix_data;
 };
 

diff --git a/graph.c b/graph.c
index 7358416..7e0a099 100644 (file)
--- a/graph.c
+++ b/graph.c
@@ -194,8 +194,10 @@ static struct strbuf *diff_output_prefix_callback(struct diff_options *opt, void
        struct git_graph *graph = data;
        static struct strbuf msgbuf = STRBUF_INIT;
 
+       assert(opt);
        assert(graph);
 
+       opt->output_prefix_length = graph->width;
        strbuf_reset(&msgbuf);
        graph_padding_line(graph, &msgbuf);
        return &msgbuf;
@@ -245,6 +247,7 @@ struct git_graph *graph_init(struct rev_info *opt)
         */
        opt->diffopt.output_prefix = diff_output_prefix_callback;
        opt->diffopt.output_prefix_data = graph;
+       opt->diffopt.output_prefix_length = 0;
 
        return graph;
 }