Liip\RMT\Changelog\Formatter\SemanticChangelogFormatter::updateExistingLines PHP Method

    public function updateExistingLines($lines, $version, $comment, $options)
    {
        if (!isset($options['type'])) {
            throw new \InvalidArgumentException('Option [type] in mandatory');
        }
        $type = $options['type'];
        if (!in_array($type, array('patch', 'minor', 'major'))) {
            throw new \InvalidArgumentException("Invalid type [{$type}]");
        }
        // Specific case for new Changelog file. We always have to write down a major
        if (count($lines) == 0) {
            $type = 'major';
        }
        // Insert the new lines
        array_splice($lines, $this->findPositionToInsert($lines, $type), 0, $this->getNewLines($type, $version, $comment));
        // Insert extra lines (like commits details)
        if (isset($options['extra-lines'])) {
            foreach ($options['extra-lines'] as $pos => $line) {
                $options['extra-lines'][$pos] = '         ' . $line;
            }
            array_splice($lines, $this->findPositionToInsert($lines, 'patch') + 1, 0, $options['extra-lines']);
        }
        return $lines;
    }