diff options
Diffstat (limited to 'graph.c')
| -rw-r--r-- | graph.c | 108 |
1 files changed, 64 insertions, 44 deletions
@@ -19,6 +19,23 @@ 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 @@ -70,39 +87,28 @@ enum graph_state { GRAPH_COLLAPSING }; -/* - * The list of available column colors. - */ -static char column_colors[][COLOR_MAXLEN] = { - GIT_COLOR_RED, - GIT_COLOR_GREEN, - GIT_COLOR_YELLOW, - GIT_COLOR_BLUE, - GIT_COLOR_MAGENTA, - GIT_COLOR_CYAN, - GIT_COLOR_BOLD GIT_COLOR_RED, - GIT_COLOR_BOLD GIT_COLOR_GREEN, - GIT_COLOR_BOLD GIT_COLOR_YELLOW, - GIT_COLOR_BOLD GIT_COLOR_BLUE, - GIT_COLOR_BOLD GIT_COLOR_MAGENTA, - GIT_COLOR_BOLD GIT_COLOR_CYAN, -}; +static const char **column_colors; +static unsigned short column_colors_max; -#define COLUMN_COLORS_MAX (ARRAY_SIZE(column_colors)) +static 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(const struct column *c) +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 { @@ -211,9 +217,28 @@ 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(opt); + assert(graph); + + opt->output_prefix_length = graph->width; + 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; @@ -230,7 +255,7 @@ 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 @@ -244,6 +269,14 @@ struct git_graph *graph_init(struct rev_info *opt) 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; + opt->diffopt.output_prefix_length = 0; + return graph; } @@ -345,8 +378,8 @@ 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; + if (!want_color(graph->revs->diffopt.use_color)) + return column_colors_max; return graph->default_column_color; } @@ -356,7 +389,7 @@ 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, @@ -420,7 +453,7 @@ static void graph_update_width(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. */ @@ -775,22 +808,9 @@ static void graph_output_commit_char(struct git_graph *graph, struct strbuf *sb) } /* - * If revs->left_right is set, print '<' for commits that - * come from the left side, and '>' for commits from the right - * side. - */ - if (graph->revs && graph->revs->left_right) { - if (graph->commit->object.flags & SYMMETRIC_LEFT) - strbuf_addch(sb, '<'); - else - strbuf_addch(sb, '>'); - return; - } - - /* - * Print '*' in all other cases + * get_revision_mark() handles all other cases without assert() */ - strbuf_addch(sb, '*'); + strbuf_addstr(sb, get_revision_mark(graph->revs, graph->commit)); } /* |