/* 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);
-
/*
* Output a padding line in the graph.
* This is similar to graph_next_line(). However, it is guaranteed to
/*
* The list of available column colors.
*/
-static char column_colors[][COLOR_MAXLEN] = {
+static const char *column_colors_ansi[] = {
GIT_COLOR_RED,
GIT_COLOR_GREEN,
GIT_COLOR_YELLOW,
GIT_COLOR_BOLD_BLUE,
GIT_COLOR_BOLD_MAGENTA,
GIT_COLOR_BOLD_CYAN,
+ GIT_COLOR_RESET,
};
-#define COLUMN_COLORS_MAX (ARRAY_SIZE(column_colors))
+#define COLUMN_COLORS_ANSI_MAX (ARRAY_SIZE(column_colors_ansi) - 1)
+
+static const char **column_colors;
+static unsigned short column_colors_max;
-static const char *column_get_color_code(const struct column *c)
+void graph_set_column_colors(const char **colors, unsigned short colors_max)
{
- return column_colors[c->color];
+ column_colors = colors;
+ column_colors_max = colors_max;
+}
+
+static const char *column_get_color_code(unsigned short color)
+{
+ return column_colors[color];
}
static void strbuf_write_column(struct strbuf *sb, const struct column *c,
char col_char)
{
- if (c->color < COLUMN_COLORS_MAX)
- strbuf_addstr(sb, column_get_color_code(c));
+ if (c->color < column_colors_max)
+ strbuf_addstr(sb, column_get_color_code(c->color));
strbuf_addch(sb, col_char);
- if (c->color < COLUMN_COLORS_MAX)
- strbuf_addstr(sb, GIT_COLOR_RESET);
+ if (c->color < column_colors_max)
+ strbuf_addstr(sb, column_get_color_code(column_colors_max));
}
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));
+
+ if (!column_colors)
+ graph_set_column_colors(column_colors_ansi,
+ COLUMN_COLORS_ANSI_MAX);
+
graph->commit = NULL;
graph->revs = opt;
graph->num_parents = 0;
* always increment it for the first commit we output.
* This way we start at 0 for the first commit.
*/
- graph->default_column_color = COLUMN_COLORS_MAX - 1;
+ graph->default_column_color = column_colors_max - 1;
/*
* Allocate a reasonably large default number of columns
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;
}
static unsigned short graph_get_current_column_color(const struct git_graph *graph)
{
if (!DIFF_OPT_TST(&graph->revs->diffopt, COLOR_DIFF))
- return COLUMN_COLORS_MAX;
+ return column_colors_max;
return graph->default_column_color;
}
static void graph_increment_column_color(struct git_graph *graph)
{
graph->default_column_color = (graph->default_column_color + 1) %
- COLUMN_COLORS_MAX;
+ column_colors_max;
}
static unsigned short graph_find_commit_color(const struct git_graph *graph,
max_cols++;
/*
- * We added a column for the the current commit as part of
+ * We added a column for the current commit as part of
* graph->num_parents. If the current commit was already in
* graph->columns, then we have double counted it.
*/
graph_update_state(graph, GRAPH_PADDING);
}
-static int graph_next_line(struct git_graph *graph, struct strbuf *sb)
+int graph_next_line(struct git_graph *graph, struct strbuf *sb)
{
switch (graph->state) {
case GRAPH_PADDING: