DbPatch_Command_Abstract::getPatches PHP Method

    public function getPatches($branch, $searchPatchNumber = null)
    {
        $patchDirectory = $this->getPatchDirectory();
        if (!is_dir($patchDirectory)) {
            $this->writer->error('path ' . $patchDirectory . ' doesn\'t exists');
            return array();
        }
        try {
            $iterator = new DirectoryIterator($patchDirectory);
        } catch (Exception $e) {
            $this->writer->line('Error: ' . $e->getMessage());
            return array();
        }
        $branch = $branch == '' ? $this->getBranch() : $branch;
        $patchPrefix = $this->getPatchPrefix();
        if ($branch != self::DEFAULT_BRANCH) {
            $patchPrefix .= '-' . $branch;
        }
        $patches = array();
        $pattern = '/^' . preg_quote($patchPrefix) . '-(\\d{3,4})\\.(sql|php)$/';
        foreach ($iterator as $fileinfo) {
            if ($fileinfo->isDot() || substr($fileinfo->getFilename(), 0, 1) == '.') {
                continue;
            }
            if (preg_match($pattern, $fileinfo->getFilename(), $matches)) {
                $patchNumber = (int) $matches[1];
                if (!is_null($searchPatchNumber) && $searchPatchNumber != '*' && $patchNumber != $searchPatchNumber || is_null($searchPatchNumber) && $this->isPatchApplied($patchNumber, $branch)) {
                    continue;
                }
                $filename = $patchDirectory . '/' . $fileinfo->getFilename();
                $type = $matches[2];
                $patch = DbPatch_Command_Patch::factory($type);
                $patch->loadFromArray(array('filename' => $filename, 'basename' => $matches[0], 'patchNumber' => $patchNumber, 'branch' => $branch));
                $patches[$patchNumber] = $patch;
            }
        }
        ksort($patches);
        return $patches;
    }