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-rw-r--r--graph.c32
1 files changed, 30 insertions, 2 deletions
diff --git a/graph.c b/graph.c
index 7e0a099f83..e864fe2c6a 100644
--- a/graph.c
+++ b/graph.c
@@ -8,6 +8,34 @@
/* Internal API */
/*
+ * Output the next line for a graph.
+ * This formats the next graph line into the specified strbuf. It is not
+ * terminated with a newline.
+ *
+ * Returns 1 if the line includes the current commit, and 0 otherwise.
+ * graph_next_line() will return 1 exactly once for each time
+ * graph_update() is called.
+ */
+static int graph_next_line(struct git_graph *graph, struct strbuf *sb);
+
+/*
+ * Set up a custom scheme for column colors.
+ *
+ * The default column color scheme inserts ANSI color escapes to colorize
+ * the graph. The various color escapes are stored in an array of strings
+ * where each entry corresponds to a color, except for the last entry,
+ * which denotes the escape for resetting the color back to the default.
+ * When generating the graph, strings from this array are inserted before
+ * and after the various column characters.
+ *
+ * This function allows you to enable a custom array of color escapes.
+ * The 'colors_max' argument is the index of the last "reset" entry.
+ *
+ * This functions must be called BEFORE graph_init() is called.
+ */
+static void graph_set_column_colors(const char **colors, unsigned short colors_max);
+
+/*
* Output a padding line in the graph.
* This is similar to graph_next_line(). However, it is guaranteed to
* never print the current commit line. Instead, if the commit line is
@@ -62,7 +90,7 @@ enum graph_state {
static const char **column_colors;
static unsigned short column_colors_max;
-void graph_set_column_colors(const char **colors, unsigned short colors_max)
+static void graph_set_column_colors(const char **colors, unsigned short colors_max)
{
column_colors = colors;
column_colors_max = colors_max;
@@ -1116,7 +1144,7 @@ static void graph_output_collapsing_line(struct git_graph *graph, struct strbuf
graph_update_state(graph, GRAPH_PADDING);
}
-int graph_next_line(struct git_graph *graph, struct strbuf *sb)
+static int graph_next_line(struct git_graph *graph, struct strbuf *sb)
{
switch (graph->state) {
case GRAPH_PADDING: