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[PATCH 5/6 v2] Register a callback for graph output.

From
Bo Yang <struggleyb.nku@gmail.com>
Date
May 20, 2010, 10:25 UTC
Message-ID
<1274351138-11813-6-git-send-email-struggleyb.nku@gmail.com>
In-Reply-To
<1274351138-11813-5-git-send-email-struggleyb.nku@gmail.com>

It will look better if the 'git log --graph' print the graph pading lines before the diff output just like what it does for commit message. And this patch leverage the new diff prefix callback function to achieve this.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
---
 graph.c |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/graph.c b/graph.c
index e6bbcaa..6982d7a 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(FILE *file, 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;
 }
 
-- 
1.6.0.4
Previous: Bo YangNext: Bo Yang
Message 6 of 10 in “Make git log --graph looks better with -p and other diff options”
  1. 0/6 Make git log --graph looks better with -p and other diff optionsBo Yang, May 20, 2010
  2. 1/6 Add a prefix output callback to diff output.Bo Yang, May 20, 2010
  3. 2/6 Output the graph columns at the end of the commit message.Bo Yang, May 20, 2010
  4. 3/6 diff.c: Output the text graph padding before each diff line.Bo Yang, May 20, 2010
  5. 4/6 Emit a whole line once a time.Bo Yang, May 20, 2010
  6. 5/6 Register a callback for graph output.Bo Yang, May 20, 2010
  7. 6/6 Make --color-words work well with --graph.Bo Yang, May 20, 2010
  8. Jeff KingMay 20, 2010
  9. Jeff KingMay 20, 2010
  10. Bo YangMay 21, 2010

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