string_list: add a function string_list_remove_empty_items()

diff --git a/graph.c b/graph.c
index 7e0a099f8329757b24770ec6788bf83a8398d76d..e864fe2c6a21379398e454e60627e78a63a09462 100644 (file)
--- a/graph.c
+++ b/graph.c
@@ -7,6 +7,34 @@
 
 /* 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
@@ -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: