PEAR_Command_Remote::doListUpgrades PHP Метод

    function doListUpgrades($command, $options, $params)
    {
        require_once 'PEAR/Common.php';
        if (isset($params[0]) && !is_array(PEAR_Common::betterStates($params[0]))) {
            return $this->raiseError($params[0] . ' is not a valid state (stable/beta/alpha/devel/etc.) try "pear help list-upgrades"');
        }
        $savechannel = $channel = $this->config->get('default_channel');
        $reg =& $this->config->getRegistry();
        foreach ($reg->listChannels() as $channel) {
            $inst = array_flip($reg->listPackages($channel));
            if (!count($inst)) {
                continue;
            }
            if ($channel == '__uri') {
                continue;
            }
            $this->config->set('default_channel', $channel);
            $state = empty($params[0]) ? $this->config->get('preferred_state') : $params[0];
            $caption = $channel . ' Available Upgrades';
            $chan = $reg->getChannel($channel);
            if (PEAR::isError($e = $this->_checkChannelForStatus($channel, $chan))) {
                return $e;
            }
            $latest = array();
            $base2 = false;
            $preferred_mirror = $this->config->get('preferred_mirror');
            if ($chan->supportsREST($preferred_mirror) && ($base = $chan->getBaseURL('REST1.0', $preferred_mirror))) {
                if ($base2) {
                    $rest =& $this->config->getREST('1.4', array());
                    $base = $base2;
                } else {
                    $rest =& $this->config->getREST('1.0', array());
                }
                if (empty($state) || $state == 'any') {
                    $state = false;
                } else {
                    $caption .= ' (' . implode(', ', PEAR_Common::betterStates($state, true)) . ')';
                }
                PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
                $latest = $rest->listLatestUpgrades($base, $state, $inst, $channel, $reg);
                PEAR::staticPopErrorHandling();
            }
            if (PEAR::isError($latest)) {
                $this->ui->outputData($latest->getMessage());
                continue;
            }
            $caption .= ':';
            if (PEAR::isError($latest)) {
                $this->config->set('default_channel', $savechannel);
                return $latest;
            }
            $data = array('caption' => $caption, 'border' => 1, 'headline' => array('Channel', 'Package', 'Local', 'Remote', 'Size'), 'channel' => $channel);
            foreach ((array) $latest as $pkg => $info) {
                $package = strtolower($pkg);
                if (!isset($inst[$package])) {
                    // skip packages we don't have installed
                    continue;
                }
                extract($info);
                $inst_version = $reg->packageInfo($package, 'version', $channel);
                $inst_state = $reg->packageInfo($package, 'release_state', $channel);
                if (version_compare("{$version}", "{$inst_version}", "le")) {
                    // installed version is up-to-date
                    continue;
                }
                if ($filesize >= 20480) {
                    $filesize += 1024 - $filesize % 1024;
                    $fs = sprintf("%dkB", $filesize / 1024);
                } elseif ($filesize > 0) {
                    $filesize += 103 - $filesize % 103;
                    $fs = sprintf("%.1fkB", $filesize / 1024.0);
                } else {
                    $fs = "  -";
                    // XXX center instead
                }
                $data['data'][] = array($channel, $pkg, "{$inst_version} ({$inst_state})", "{$version} ({$state})", $fs);
            }
            if (isset($options['channelinfo'])) {
                if (empty($data['data'])) {
                    unset($data['headline']);
                    if (count($inst) == 0) {
                        $data['data'] = '(no packages installed)';
                    } else {
                        $data['data'] = '(no upgrades available)';
                    }
                }
                $this->ui->outputData($data, $command);
            } else {
                if (empty($data['data'])) {
                    $this->ui->outputData('Channel ' . $channel . ': No upgrades available');
                } else {
                    $this->ui->outputData($data, $command);
                }
            }
        }
        $this->config->set('default_channel', $savechannel);
        return true;
    }