diff options
Diffstat (limited to 'graph.c')
| -rw-r--r-- | graph.c | 70 |
1 files changed, 47 insertions, 23 deletions
@@ -4,6 +4,43 @@ #include "diff.h" #include "revision.h" +/* 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 + * never print the current commit line. Instead, if the commit line is + * next, it will simply output a line of vertical padding, extending the + * branch lines downwards, but leaving them otherwise unchanged. + */ +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. + * + * 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. + * If the strbuf is empty, no output will be printed. + * + * Since the first line will not include the graph ouput, the caller is + * responsible for printing this line's graph (perhaps via + * graph_show_commit() or graph_show_oneline()) before calling + * graph_show_strbuf(). + */ +static void graph_show_strbuf(struct git_graph *graph, struct strbuf const *sb); + /* * TODO: * - Add colors to the graph. @@ -180,14 +217,6 @@ struct git_graph *graph_init(struct rev_info *opt) return graph; } -void graph_release(struct git_graph *graph) -{ - free(graph->columns); - free(graph->new_columns); - free(graph->mapping); - free(graph); -} - static void graph_update_state(struct git_graph *graph, enum graph_state s) { graph->prev_state = graph->state; @@ -685,7 +714,7 @@ static void graph_output_commit_char(struct git_graph *graph, struct strbuf *sb) strbuf_addch(sb, '*'); } -void graph_output_commit_line(struct git_graph *graph, struct strbuf *sb) +static void graph_output_commit_line(struct git_graph *graph, struct strbuf *sb) { int seen_this = 0; int i, j; @@ -760,7 +789,7 @@ void graph_output_commit_line(struct git_graph *graph, struct strbuf *sb) graph_update_state(graph, GRAPH_COLLAPSING); } -void graph_output_post_merge_line(struct git_graph *graph, struct strbuf *sb) +static void graph_output_post_merge_line(struct git_graph *graph, struct strbuf *sb) { int seen_this = 0; int i, j; @@ -801,7 +830,7 @@ void graph_output_post_merge_line(struct git_graph *graph, struct strbuf *sb) graph_update_state(graph, GRAPH_COLLAPSING); } -void graph_output_collapsing_line(struct git_graph *graph, struct strbuf *sb) +static void graph_output_collapsing_line(struct git_graph *graph, struct strbuf *sb) { int i; int *tmp_mapping; @@ -906,7 +935,7 @@ void graph_output_collapsing_line(struct git_graph *graph, struct strbuf *sb) 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: @@ -933,7 +962,7 @@ int graph_next_line(struct git_graph *graph, struct strbuf *sb) return 0; } -void graph_padding_line(struct git_graph *graph, struct strbuf *sb) +static void graph_padding_line(struct git_graph *graph, struct strbuf *sb) { int i, j; @@ -981,14 +1010,12 @@ int graph_is_commit_finished(struct git_graph const *graph) void graph_show_commit(struct git_graph *graph) { - struct strbuf msgbuf; + struct strbuf msgbuf = STRBUF_INIT; int shown_commit_line = 0; if (!graph) return; - strbuf_init(&msgbuf, 0); - while (!shown_commit_line) { shown_commit_line = graph_next_line(graph, &msgbuf); fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); @@ -1002,12 +1029,11 @@ void graph_show_commit(struct git_graph *graph) void graph_show_oneline(struct git_graph *graph) { - struct strbuf msgbuf; + struct strbuf msgbuf = STRBUF_INIT; if (!graph) return; - strbuf_init(&msgbuf, 0); graph_next_line(graph, &msgbuf); fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); strbuf_release(&msgbuf); @@ -1015,12 +1041,11 @@ void graph_show_oneline(struct git_graph *graph) void graph_show_padding(struct git_graph *graph) { - struct strbuf msgbuf; + struct strbuf msgbuf = STRBUF_INIT; if (!graph) return; - strbuf_init(&msgbuf, 0); graph_padding_line(graph, &msgbuf); fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); strbuf_release(&msgbuf); @@ -1028,7 +1053,7 @@ void graph_show_padding(struct git_graph *graph) int graph_show_remainder(struct git_graph *graph) { - struct strbuf msgbuf; + struct strbuf msgbuf = STRBUF_INIT; int shown = 0; if (!graph) @@ -1037,7 +1062,6 @@ int graph_show_remainder(struct git_graph *graph) if (graph_is_commit_finished(graph)) return 0; - strbuf_init(&msgbuf, 0); for (;;) { graph_next_line(graph, &msgbuf); fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); @@ -1055,7 +1079,7 @@ int graph_show_remainder(struct git_graph *graph) } -void graph_show_strbuf(struct git_graph *graph, struct strbuf const *sb) +static void graph_show_strbuf(struct git_graph *graph, struct strbuf const *sb) { char *p; |