Function graph_output_pre_commit_line

graph.c:901–965

}

static void graph_output_pre_commit_line(struct git_graph *graph,
					 struct graph_line *line)
{
	int i, seen_this;

	/*
	 * This function formats a row that increases the space around a commit
	 * with multiple parents, to make room for it.  It should only be
	 * called when there are 3 or more parents.
	 *
	 * We need 2 extra rows for every parent over 2.
	 */
	assert(graph->num_parents >= 3);

	/*
	 * graph->expansion_row tracks the current expansion row we are on.
	 * It should be in the range [0, num_expansion_rows - 1]
	 */
	assert(0 <= graph->expansion_row &&
	       graph->expansion_row < graph_num_expansion_rows(graph));

	/*
	 * Output the row
	 */
	seen_this = 0;
	for (i = 0; i < graph->num_columns; i++) {
		struct column *col = &graph->columns[i];
		if (col->commit == graph->commit) {
			seen_this = 1;
			graph_line_write_column(line, col, '|');
			graph_line_addchars(line, ' ', graph->expansion_row);
		} else if (seen_this && graph_needs_truncation(graph, i)) {
			graph_line_addstr(line, "~ ");
			break;
		} else if (seen_this && (graph->expansion_row == 0)) {
			/*
			 * This is the first line of the pre-commit output.
			 * If the previous commit was a merge commit and
			 * ended in the GRAPH_POST_MERGE state, all branch
			 * lines after graph->prev_commit_index were
			 * printed as "\" on the previous line.  Continue
			 * to print them as "\" on this line.  Otherwise,
			 * print the branch lines as "|".
			 */
			if (graph->prev_state == GRAPH_POST_MERGE &&
			    graph->prev_commit_index < i)
				graph_line_write_column(line, col, '\\');
			else
				graph_line_write_column(line, col, '|');
		} else if (seen_this && (graph->expansion_row > 0)) {
			graph_line_write_column(line, col, '\\');
		} else {
			graph_line_write_column(line, col, '|');
		}
		graph_line_addch(line, ' ');
	}

	/*