diff options
| -rw-r--r-- | graph.c | 37 | ||||
| -rw-r--r-- | graph.h | 17 |
2 files changed, 43 insertions, 11 deletions
@@ -62,7 +62,7 @@ enum graph_state { /* * 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, @@ -75,23 +75,33 @@ static char column_colors[][COLOR_MAXLEN] = { 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_get_color_code(const struct column *c) +static const char **column_colors; +static unsigned short column_colors_max; + +void graph_set_column_colors(const char **colors, unsigned short colors_max) +{ + column_colors = colors; + column_colors_max = colors_max; +} + +static const char *column_get_color_code(unsigned short color) { - return column_colors[c->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 { @@ -215,6 +225,11 @@ static struct strbuf *diff_output_prefix_callback(struct diff_options *opt, void 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; @@ -231,7 +246,7 @@ struct git_graph *graph_init(struct rev_info *opt) * 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 @@ -354,7 +369,7 @@ static struct commit_list *first_interesting_parent(struct git_graph *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; } @@ -364,7 +379,7 @@ static unsigned short graph_get_current_column_color(const struct git_graph *gra 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, @@ -5,6 +5,23 @@ struct git_graph; /* + * 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. + */ +void graph_set_column_colors(const char **colors, unsigned short colors_max); + +/* * Create a new struct git_graph. */ struct git_graph *graph_init(struct rev_info *opt); |