diff options
Diffstat (limited to 'graph.c')
| -rw-r--r-- | graph.c | 149 |
1 files changed, 97 insertions, 52 deletions
@@ -2,7 +2,6 @@ #include "commit.h" #include "color.h" #include "graph.h" -#include "diff.h" #include "revision.h" /* Internal API */ @@ -17,8 +16,8 @@ static void graph_padding_line(struct git_graph *graph, struct strbuf *sb); /* - * Print a strbuf to stdout. If the graph is non-NULL, all lines but the - * first will be prefixed with the graph output. + * Print a strbuf. If the graph is non-NULL, all lines but the first will be + * prefixed with the graph output. * * If the strbuf ends with a newline, the output will end after this * newline. A new graph line will not be printed after the final newline. @@ -28,8 +27,15 @@ static void graph_padding_line(struct git_graph *graph, struct strbuf *sb); * responsible for printing this line's graph (perhaps via * graph_show_commit() or graph_show_oneline()) before calling * graph_show_strbuf(). + * + * Note that unlike some other graph display functions, you must pass the file + * handle directly. It is assumed that this is the same file handle as the + * file specified by the graph diff options. This is necessary so that + * graph_show_strbuf can be called even with a NULL graph. */ -static void graph_show_strbuf(struct git_graph *graph, struct strbuf const *sb); +static void graph_show_strbuf(struct git_graph *graph, + FILE *file, + struct strbuf const *sb); /* * TODO: @@ -59,6 +65,17 @@ enum graph_state { GRAPH_COLLAPSING }; +static void graph_show_line_prefix(const struct diff_options *diffopt) +{ + if (!diffopt || !diffopt->line_prefix) + return; + + fwrite(diffopt->line_prefix, + sizeof(char), + diffopt->line_prefix_length, + diffopt->file); +} + static const char **column_colors; static unsigned short column_colors_max; @@ -195,14 +212,28 @@ static struct strbuf *diff_output_prefix_callback(struct diff_options *opt, void static struct strbuf msgbuf = STRBUF_INIT; assert(opt); - assert(graph); - opt->output_prefix_length = graph->width; strbuf_reset(&msgbuf); - graph_padding_line(graph, &msgbuf); + if (opt->line_prefix) + strbuf_add(&msgbuf, opt->line_prefix, + opt->line_prefix_length); + if (graph) + graph_padding_line(graph, &msgbuf); return &msgbuf; } +static const struct diff_options *default_diffopt; + +void graph_setup_line_prefix(struct diff_options *diffopt) +{ + default_diffopt = diffopt; + + /* setup an output prefix callback if necessary */ + if (diffopt && !diffopt->output_prefix) + diffopt->output_prefix = diff_output_prefix_callback; +} + + struct git_graph *graph_init(struct rev_info *opt) { struct git_graph *graph = xmalloc(sizeof(struct git_graph)); @@ -234,12 +265,10 @@ struct git_graph *graph_init(struct rev_info *opt) * We'll automatically grow columns later if we need more room. */ graph->column_capacity = 30; - graph->columns = xmalloc(sizeof(struct column) * - graph->column_capacity); - graph->new_columns = xmalloc(sizeof(struct column) * - graph->column_capacity); - graph->mapping = xmalloc(sizeof(int) * 2 * graph->column_capacity); - graph->new_mapping = xmalloc(sizeof(int) * 2 * graph->column_capacity); + ALLOC_ARRAY(graph->columns, graph->column_capacity); + ALLOC_ARRAY(graph->new_columns, graph->column_capacity); + ALLOC_ARRAY(graph->mapping, 2 * graph->column_capacity); + ALLOC_ARRAY(graph->new_mapping, 2 * graph->column_capacity); /* * The diff output prefix callback, with this we can make @@ -247,7 +276,6 @@ struct git_graph *graph_init(struct rev_info *opt) */ opt->diffopt.output_prefix = diff_output_prefix_callback; opt->diffopt.output_prefix_data = graph; - opt->diffopt.output_prefix_length = 0; return graph; } @@ -671,6 +699,13 @@ static void graph_output_padding_line(struct git_graph *graph, graph_pad_horizontally(graph, sb, graph->num_new_columns * 2); } + +int graph_width(struct git_graph *graph) +{ + return graph->width; +} + + static void graph_output_skip_line(struct git_graph *graph, struct strbuf *sb) { /* @@ -1140,6 +1175,7 @@ int graph_next_line(struct git_graph *graph, struct strbuf *sb) static void graph_padding_line(struct git_graph *graph, struct strbuf *sb) { int i; + int chars_written = 0; if (graph->state != GRAPH_COMMIT) { graph_next_line(graph, sb); @@ -1155,14 +1191,21 @@ static void graph_padding_line(struct git_graph *graph, struct strbuf *sb) */ for (i = 0; i < graph->num_columns; i++) { struct column *col = &graph->columns[i]; + strbuf_write_column(sb, col, '|'); - if (col->commit == graph->commit && graph->num_parents > 2) - strbuf_addchars(sb, ' ', (graph->num_parents - 2) * 2); - else + chars_written++; + + if (col->commit == graph->commit && graph->num_parents > 2) { + int len = (graph->num_parents - 2) * 2; + strbuf_addchars(sb, ' ', len); + chars_written += len; + } else { strbuf_addch(sb, ' '); + chars_written++; + } } - graph_pad_horizontally(graph, sb, graph->num_columns); + graph_pad_horizontally(graph, sb, chars_written); /* * Update graph->prev_state since we have output a padding line @@ -1180,6 +1223,8 @@ void graph_show_commit(struct git_graph *graph) struct strbuf msgbuf = STRBUF_INIT; int shown_commit_line = 0; + graph_show_line_prefix(default_diffopt); + if (!graph) return; @@ -1195,9 +1240,12 @@ void graph_show_commit(struct git_graph *graph) while (!shown_commit_line && !graph_is_commit_finished(graph)) { shown_commit_line = graph_next_line(graph, &msgbuf); - fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); - if (!shown_commit_line) - putchar('\n'); + fwrite(msgbuf.buf, sizeof(char), msgbuf.len, + graph->revs->diffopt.file); + if (!shown_commit_line) { + putc('\n', graph->revs->diffopt.file); + graph_show_line_prefix(&graph->revs->diffopt); + } strbuf_setlen(&msgbuf, 0); } @@ -1208,11 +1256,13 @@ void graph_show_oneline(struct git_graph *graph) { struct strbuf msgbuf = STRBUF_INIT; + graph_show_line_prefix(default_diffopt); + if (!graph) return; graph_next_line(graph, &msgbuf); - fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); + fwrite(msgbuf.buf, sizeof(char), msgbuf.len, graph->revs->diffopt.file); strbuf_release(&msgbuf); } @@ -1220,11 +1270,13 @@ void graph_show_padding(struct git_graph *graph) { struct strbuf msgbuf = STRBUF_INIT; + graph_show_line_prefix(default_diffopt); + if (!graph) return; graph_padding_line(graph, &msgbuf); - fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); + fwrite(msgbuf.buf, sizeof(char), msgbuf.len, graph->revs->diffopt.file); strbuf_release(&msgbuf); } @@ -1233,6 +1285,8 @@ int graph_show_remainder(struct git_graph *graph) struct strbuf msgbuf = STRBUF_INIT; int shown = 0; + graph_show_line_prefix(default_diffopt); + if (!graph) return 0; @@ -1241,30 +1295,29 @@ int graph_show_remainder(struct git_graph *graph) for (;;) { graph_next_line(graph, &msgbuf); - fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); + fwrite(msgbuf.buf, sizeof(char), msgbuf.len, + graph->revs->diffopt.file); strbuf_setlen(&msgbuf, 0); shown = 1; - if (!graph_is_commit_finished(graph)) - putchar('\n'); - else + if (!graph_is_commit_finished(graph)) { + putc('\n', graph->revs->diffopt.file); + graph_show_line_prefix(&graph->revs->diffopt); + } else { break; + } } strbuf_release(&msgbuf); return shown; } - -static void graph_show_strbuf(struct git_graph *graph, struct strbuf const *sb) +static void graph_show_strbuf(struct git_graph *graph, + FILE *file, + struct strbuf const *sb) { char *p; - if (!graph) { - fwrite(sb->buf, sizeof(char), sb->len, stdout); - return; - } - /* * Print the strbuf line by line, * and display the graph info before each line but the first. @@ -1279,7 +1332,7 @@ static void graph_show_strbuf(struct git_graph *graph, struct strbuf const *sb) } else { len = (sb->buf + sb->len) - p; } - fwrite(p, sizeof(char), len, stdout); + fwrite(p, sizeof(char), len, file); if (next_p && *next_p != '\0') graph_show_oneline(graph); p = next_p; @@ -1287,28 +1340,20 @@ static void graph_show_strbuf(struct git_graph *graph, struct strbuf const *sb) } void graph_show_commit_msg(struct git_graph *graph, + FILE *file, struct strbuf const *sb) { int newline_terminated; - if (!graph) { - /* - * If there's no graph, just print the message buffer. - * - * The message buffer for CMIT_FMT_ONELINE and - * CMIT_FMT_USERFORMAT are already missing a terminating - * newline. All of the other formats should have it. - */ - fwrite(sb->buf, sizeof(char), sb->len, stdout); - return; - } - - newline_terminated = (sb->len && sb->buf[sb->len - 1] == '\n'); - /* * Show the commit message */ - graph_show_strbuf(graph, sb); + graph_show_strbuf(graph, file, sb); + + if (!graph) + return; + + newline_terminated = (sb->len && sb->buf[sb->len - 1] == '\n'); /* * If there is more output needed for this commit, show it now @@ -1320,7 +1365,7 @@ void graph_show_commit_msg(struct git_graph *graph, * new line. */ if (!newline_terminated) - putchar('\n'); + putc('\n', file); graph_show_remainder(graph); @@ -1328,6 +1373,6 @@ void graph_show_commit_msg(struct git_graph *graph, * If sb ends with a newline, our output should too. */ if (newline_terminated) - putchar('\n'); + putc('\n', file); } } |