diff_cmd () {
	"$merge_tool_path" "$LOCAL" "$REMOTE" | cat
}

merge_cmd () {
	if $base_present
	then
		"$merge_tool_path" \
			"$LOCAL" "$MERGED" "$REMOTE" \
			"$BASE" | cat
	else
		"$merge_tool_path" \
			"$LOCAL" "$MERGED" "$REMOTE" | cat
	fi
}