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<?php |
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/** |
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* @package midcom.services.rcs |
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* @author CONTENT CONTROL https://contentcontrol.berlin |
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* @copyright CONTENT CONTROL https://contentcontrol.berlin |
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*/ |
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/** |
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* @package midcom.services.rcs |
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*/ |
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class midcom_services_rcs_backend_git extends midcom_services_rcs_backend |
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{ |
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/** |
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* Save a new revision |
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*/ |
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public function update(string $user_id, string $updatemessage = '') |
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{ |
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$author = $user_id . ' <' . $user_id . '@' . $_SERVER['REMOTE_ADDR'] . '>'; |
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$command = 'commit -q --allow-empty --allow-empty-message -m ' . escapeshellarg($updatemessage) . |
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' --author ' . escapeshellarg($author); |
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$filename = $this->generate_filename(); |
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$relative_path = $this->relative_path($filename); |
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// avoid the separate add cmd where possible to mitigate concurrency issues |
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if (!file_exists($filename)) { |
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$this->write_object($filename); |
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$this->exec('add ' . $relative_path); |
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} else { |
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$this->write_object($filename); |
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$command .= ' ' . $relative_path; |
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} |
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$this->exec($command); |
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} |
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/** |
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* Get a revision |
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*/ |
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public function get_revision(string $revision) : array |
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{ |
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$filename = $this->generate_filename(); |
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$lines = $this->read_handle('show ' . $revision . ':' . $this->relative_path($filename)); |
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$mapper = new midcom_helper_exporter_xml(); |
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return $mapper->data2array(implode("\n", $lines)); |
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} |
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protected function load_history() : array |
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{ |
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$filename = $this->generate_filename(); |
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if (!is_readable($filename)) { |
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debug_add('file ' . $filename . ' is not readable, returning empty result', MIDCOM_LOG_INFO); |
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return []; |
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} |
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$lines = $this->read_handle('log --shortstat --format=format:"%h%n%ae%n%at%n%s" ' . $this->relative_path($filename)); |
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$total = count($lines); |
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$revisions = []; |
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for ($i = 0; $i < $total; $i += 6) { |
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[$user, $ip] = explode('@', $lines[$i + 1], 2); |
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$stat = preg_replace('/.*?\d file changed/', '', $lines[$i + 4]); |
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$stat = preg_replace('/, (\d+) .+?tions?\(([\+\-])\)/', '$2$1 ', $stat); |
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$revisions[$lines[$i]] = [ |
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'revision' => $lines[$i], |
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'date' => $lines[$i + 2], |
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'lines' => $stat, |
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'user' => $user, |
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'ip' => $ip, |
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'message' => $lines[$i + 3] |
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]; |
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} |
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return $revisions; |
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} |
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protected function generate_filename() : string |
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{ |
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$root = $this->config->get_rootdir(); |
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$initialized = true; |
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if (!file_exists($root . '/.git')) { |
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if ((count(scandir($root)) > 2)) { |
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// This is probably an old rcs dir |
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throw new midcom_error($root . ' is not empty. Run tools/rcs2git to convert'); |
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} |
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$initialized = false; |
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} |
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$filename = parent::generate_filename(); |
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if (!$initialized) { |
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$this->exec('init'); |
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$this->exec('config user.email "midcom.rcs@localhost"'); |
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$this->exec('config user.name "midcom.rcs"'); |
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} |
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return $filename; |
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} |
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protected function read_handle(string $command) : array |
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{ |
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return parent::read_handle('git -C ' . $this->config->get_rootdir() . ' ' . $command); |
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} |
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private function exec(string $command) |
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{ |
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$prefix = 'git -C ' . $this->config->get_rootdir(); |
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if ($command != 'init') { |
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// These help for the nested repo case |
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$prefix .= ' --git-dir=' . $this->config->get_rootdir() . '/.git ' . ' --work-tree=' . $this->config->get_rootdir(); |
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} |
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$this->run_command($prefix . ' ' . $command); |
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} |
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private function relative_path(string $filename) : string |
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{ |
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$relative_path = substr($filename, strlen($this->config->get_rootdir())); |
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return escapeshellarg(trim($relative_path, '/')); |
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} |
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} |
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