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-rw-r--r--graph.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/graph.c b/graph.c
index e6bbcaa8c4..ac7c605406 100644
--- a/graph.c
+++ b/graph.c
@@ -211,6 +211,18 @@ struct git_graph {
unsigned short default_column_color;
};
+static struct strbuf *diff_output_prefix_callback(struct diff_options *opt, void *data)
+{
+ struct git_graph *graph = data;
+ static struct strbuf msgbuf = STRBUF_INIT;
+
+ assert(graph);
+
+ strbuf_reset(&msgbuf);
+ graph_padding_line(graph, &msgbuf);
+ return &msgbuf;
+}
+
struct git_graph *graph_init(struct rev_info *opt)
{
struct git_graph *graph = xmalloc(sizeof(struct git_graph));
@@ -244,6 +256,13 @@ struct git_graph *graph_init(struct rev_info *opt)
graph->mapping = xmalloc(sizeof(int) * 2 * graph->column_capacity);
graph->new_mapping = xmalloc(sizeof(int) * 2 * graph->column_capacity);
+ /*
+ * The diff output prefix callback, with this we can make
+ * all the diff output to align with the graph lines.
+ */
+ opt->diffopt.output_prefix = diff_output_prefix_callback;
+ opt->diffopt.output_prefix_data = graph;
+
return graph;
}