[PATCH 05/11] graph: extract logic for moving to GRAPH_PRE_COMMIT state

From: "James Coglan via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Junio C Hamano <gitster@pobox.com>, James Coglan <jcoglan@gmail.com>
Subject: [PATCH 05/11] graph: extract logic for moving to GRAPH_PRE_COMMIT state
Date: Thu, 10 Oct 2019 09:13:47 -0700 (PDT)	[thread overview]
Message-ID: <d5d60ca9a280bb02c09c1e8e13b5b9c185cc09f9.1570724021.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.383.git.gitgitgadget@gmail.com>

From: James Coglan <jcoglan@gmail.com>

This computation is repeated in a couple of places and I need to add
another condition to it to implement a further improvement to the graph
rendering, so I'm extracting this into a function.

Signed-off-by: James Coglan <jcoglan@gmail.com>
---
 graph.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/graph.c b/graph.c
index a71ae5cd61..98e8777db4 100644
--- a/graph.c
+++ b/graph.c
@@ -569,6 +569,12 @@ static void graph_update_columns(struct git_graph *graph)
 		graph->mapping_size--;
 }
 
+static int graph_needs_pre_commit_line(struct git_graph *graph)
+{
+	return graph->num_parents >= 3 &&
+	       graph->commit_index < (graph->num_columns - 1);
+}
+
 void graph_update(struct git_graph *graph, struct commit *commit)
 {
 	struct commit_list *parent;
@@ -624,8 +630,7 @@ void graph_update(struct git_graph *graph, struct commit *commit)
 	 */
 	if (graph->state != GRAPH_PADDING)
 		graph->state = GRAPH_SKIP;
-	else if (graph->num_parents >= 3 &&
-		 graph->commit_index < (graph->num_columns - 1))
+	else if (graph_needs_pre_commit_line(graph))
 		graph->state = GRAPH_PRE_COMMIT;
 	else
 		graph->state = GRAPH_COMMIT;
@@ -708,8 +713,7 @@ static void graph_output_skip_line(struct git_graph *graph, struct strbuf *sb)
 	strbuf_addstr(sb, "...");
 	graph_pad_horizontally(graph, sb);
 
-	if (graph->num_parents >= 3 &&
-	    graph->commit_index < (graph->num_columns - 1))
+	if (graph_needs_pre_commit_line(graph))
 		graph_update_state(graph, GRAPH_PRE_COMMIT);
 	else
 		graph_update_state(graph, GRAPH_COMMIT);
-- 
gitgitgadget

