int git_diff_stats_to_buf()

in src/diff_stats.c [274:352]

• 65 lines of code
• 28 McCabe index (conditional complexity)

int git_diff_stats_to_buf(
	git_buf *out,
	const git_diff_stats *stats,
	git_diff_stats_format_t format,
	size_t width)
{
	int error = 0;
	size_t i;
	const git_diff_delta *delta;

	assert(out && stats);

	if (format & GIT_DIFF_STATS_NUMBER) {
		for (i = 0; i < stats->files_changed; ++i) {
			if ((delta = git_diff_get_delta(stats->diff, i)) == NULL)
				continue;

			error = git_diff_file_stats__number_to_buf(
				out, delta, &stats->filestats[i]);
			if (error < 0)
				return error;
		}
	}

	if (format & GIT_DIFF_STATS_FULL) {
		if (width > 0) {
			if (width > stats->max_name + stats->max_digits + 5)
				width -= (stats->max_name + stats->max_digits + 5);
			if (width < STATS_FULL_MIN_SCALE)
				width = STATS_FULL_MIN_SCALE;
		}
		if (width > stats->max_filestat)
			width = 0;

		for (i = 0; i < stats->files_changed; ++i) {
			if ((delta = git_diff_get_delta(stats->diff, i)) == NULL)
				continue;

			error = git_diff_file_stats__full_to_buf(
				out, delta, &stats->filestats[i], stats, width);
			if (error < 0)
				return error;
		}
	}

	if (format & GIT_DIFF_STATS_FULL || format & GIT_DIFF_STATS_SHORT) {
		git_buf_printf(
			out, " %" PRIuZ " file%s changed",
			stats->files_changed, stats->files_changed != 1 ? "s" : "");

		if (stats->insertions || stats->deletions == 0)
			git_buf_printf(
				out, ", %" PRIuZ " insertion%s(+)",
				stats->insertions, stats->insertions != 1 ? "s" : "");

		if (stats->deletions || stats->insertions == 0)
			git_buf_printf(
				out, ", %" PRIuZ " deletion%s(-)",
				stats->deletions, stats->deletions != 1 ? "s" : "");

		git_buf_putc(out, '\n');

		if (git_buf_oom(out))
			return -1;
	}

	if (format & GIT_DIFF_STATS_INCLUDE_SUMMARY) {
		for (i = 0; i < stats->files_changed; ++i) {
			if ((delta = git_diff_get_delta(stats->diff, i)) == NULL)
				continue;

			error = git_diff_file_stats__summary_to_buf(out, delta);
			if (error < 0)
				return error;
		}
	}

	return error;
}