install.php

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        PEAR::staticPopErrorHandling();

        // if there are any local package .tgz or remote static url, we can't
        // filter.  The filter only works for abstract packages
        if (count($abstractpackages) && !isset($options['force'])) {
            // when not being forced, only do necessary upgrades/installs
            if (isset($options['upgrade'])) {
                $abstractpackages = $this->_filterUptodatePackages($abstractpackages,
                    $command);
            } else {
                foreach ($abstractpackages as $i => $package) {
                    if (isset($package['group'])) {
                        // do not filter out install groups
                        continue;
                    }
                    if ($instreg->packageExists($package['package'], $package['channel'])) {
                        if ($this->config->get('verbose')) {
                            $this->ui->outputData('Ignoring installed package ' .
                                $reg->parsedPackageNameToString($package, true));
                        }
                        unset($abstractpackages[$i]);
                    }
                }
            }
            $abstractpackages = 
                array_map(array($reg, 'parsedPackageNameToString'), $abstractpackages);
        }

        $packages = array_merge($abstractpackages, $otherpackages);
        if (!count($packages)) {
            $this->ui->outputData('Nothing to ' . $command);
            return true;
        }

        $this->downloader = &$this->getDownloader($this->ui, $options, $this->config);
        $errors = array();
        $downloaded = array();
        $downloaded = &$this->downloader->download($packages);
        if (PEAR::isError($downloaded)) {
            return $this->raiseError($downloaded);
        }
        $errors = $this->downloader->getErrorMsgs();
        if (count($errors)) {
            $err = array();
            $err['data'] = array();
            foreach ($errors as $error) {
                $err['data'][] = array($error);
            }
            $err['headline'] = 'Install Errors';
            $this->ui->outputData($err);
            if (!count($downloaded)) {
                return $this->raiseError("$command failed");
            }
        }
        $data = array(
            'headline' => 'Packages that would be Installed'
        );
        if (isset($options['pretend'])) {
            foreach ($downloaded as $package) {
                $data['data'][] = array($reg->parsedPackageNameToString($package->getParsedPackage()));
            }
            $this->ui->outputData($data, 'pretend');
            return true;
        }
        $this->installer->setOptions($options);
        $this->installer->sortPackagesForInstall($downloaded);
        if (PEAR::isError($err = $this->installer->setDownloadedPackages($downloaded))) {
            $this->raiseError($err->getMessage());
            return true;
        }
        $extrainfo = array();
        foreach ($downloaded as $param) {
            PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
            $info = $this->installer->install($param, $options);
            PEAR::staticPopErrorHandling();
            if (PEAR::isError($info)) {
                $oldinfo = $info;
                $pkg = &$param->getPackageFile();
                if ($info->getCode() != PEAR_INSTALLER_NOBINARY) {
                    if (!($info = $pkg->installBinary($this->installer))) {
                        $this->ui->outputData('ERROR: ' .$oldinfo->getMessage());
                        continue;
                    }
                    // we just installed a different package than requested,
                    // let's change the param and info so that the rest of this works
                    $param = $info[0];
                    $info = $info[1];
                }
            }
            if (is_array($info)) {
                if ($param->getPackageType() == 'extsrc' ||
                      $param->getPackageType() == 'extbin' ||
                      $param->getPackageType() == 'zendextsrc' ||
                      $param->getPackageType() == 'zendextbin') {
                    $pkg = &$param->getPackageFile();
                    if ($instbin = $pkg->getInstalledBinary()) {
                        $instpkg = &$instreg->getPackage($instbin, $pkg->getChannel());
                    } else {
                        $instpkg = &$instreg->getPackage($pkg->getPackage(), $pkg->getChannel());
                    }
                    foreach ($instpkg->getFilelist() as $name => $atts) {
                        $pinfo = pathinfo($atts['installed_as']);
                        if (!isset($pinfo['extension']) ||
                              in_array($pinfo['extension'], array('c', 'h'))) {
                            continue; // make sure we don't match php_blah.h
                        }
                        if ((strpos($pinfo['basename'], 'php_') === 0 &&
                              $pinfo['extension'] == 'dll') ||
                              // most unices
                              $pinfo['extension'] == 'so' ||
                              // hp-ux
                              $pinfo['extension'] == 'sl') {
                            $binaries[] = array($atts['installed_as'], $pinfo);
                            break;
                        }
                    }
                    foreach ($binaries as $pinfo) {
                        PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
                        $ret = $this->enableExtension(array($pinfo[0]), $param->getPackageType());
                        PEAR::staticPopErrorHandling();
                        if (PEAR::isError($ret)) {
                            $extrainfo[] = $ret->getMessage();
                            if ($param->getPackageType() == 'extsrc' ||
                                  $param->getPackageType() == 'extbin') {
                                $exttype = 'extension';
                            } else {
                                ob_start();
                                phpinfo(INFO_GENERAL);
                                $info = ob_get_contents();
                                ob_end_clean();
                                $debug = function_exists('leak') ? '_debug' : '';
                                $ts = preg_match('Thread Safety.+enabled', $info) ? '_ts' : '';
                                $exttype = 'zend_extension' . $debug . $ts;
                            }
                            $extrainfo[] = 'You should add "' . $exttype . '=' .
                                $pinfo[1]['basename'] . '" to php.ini';
                        } else {
                            $extrainfo[] = 'Extension ' . $instpkg->getProvidesExtension() .
                                ' enabled in php.ini';
                        }
                    }
                }
                if ($this->config->get('verbose') > 0) {
                    $channel = $param->getChannel();
                    $label = $reg->parsedPackageNameToString(
                        array(
                            'channel' => $channel,
                            'package' => $param->getPackage(),
                            'version' => $param->getVersion(),
                        ));
                    $out = array('data' => "$command ok: $label");
                    if (isset($info['release_warnings'])) {
                        $out['release_warnings'] = $info['release_warnings'];
                    }
                    $this->ui->outputData($out, $command);
                    if (!isset($options['register-only']) && !isset($options['offline'])) {
                        if ($this->config->isDefinedLayer('ftp')) {
                            PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
                            $info = $this->installer->ftpInstall($param);
                            PEAR::staticPopErrorHandling();
                            if (PEAR::isError($info)) {
                                $this->ui->outputData($info->getMessage());
                                $this->ui->outputData("remote install failed: $label");
                            } else {
                                $this->ui->outputData("remote install ok: $label");
                            }
                        }
                    }
                }
                $deps = $param->getDeps();
                if ($deps) {
                    if (isset($deps['group'])) {
                        $groups = $deps['group'];
                        if (!isset($groups[0])) {
                            $groups = array($groups);
                        }
                        foreach ($groups as $group) {
                            if ($group['attribs']['name'] == 'default') {
                                // default group is always installed, unless the user
                                // explicitly chooses to install another group
                                continue;
                            }
                            $extrainfo[] = $param->getPackage() . ': Optional feature ' .
                                $group['attribs']['name'] . ' available (' .
                                $group['attribs']['hint'] . ')';
                        }
                        $extrainfo[] = $param->getPackage() .
                            ': To install optional features use "pear install ' .
                            $reg->parsedPackageNameToString(
                                array('package' => $param->getPackage(),
                                      'channel' => $param->getChannel()), true) .
                                  '#featurename"';
                    }
                }
                $pkg = &$instreg->getPackage($param->getPackage(), $param->getChannel());
                // $pkg may be NULL if install is a 'fake' install via --packagingroot
                if (is_object($pkg)) {
                    $pkg->setConfig($this->config);
                    if ($list = $pkg->listPostinstallScripts()) {
                        $pn = $reg->parsedPackageNameToString(array('channel' =>
                           $param->getChannel(), 'package' => $param->getPackage()), true);
                        $extrainfo[] = $pn . ' has post-install scripts:';
                        foreach ($list as $file) {
                            $extrainfo[] = $file;
                        }
                        $extrainfo[] = $param->getPackage() .
                            ': Use "pear run-scripts ' . $pn . '" to finish setup.';
                        $extrainfo[] = 'DO NOT RUN SCRIPTS FROM UNTRUSTED SOURCES';
                    }
                }
            } else {
                return $this->raiseError("$command failed");
            }
        }
        if (count($extrainfo)) {
            foreach ($extrainfo as $info) {
                $this->ui->outputData($info);
            }
        }
        return true;
    }

    // }}}
    // {{{ doUpgradeAll()

    function doUpgradeAll($command, $options, $params)
    {
        $reg = &$this->config->getRegistry();
        $toUpgrade = array();
        foreach ($reg->listChannels() as $channel) {
            if ($channel == '__uri') {
                continue;
            }

            // parse name with channel
            foreach ($reg->listPackages($channel) as $name) {
                $toUpgrade[] = $reg->parsedPackageNameToString(array(
                        'channel' => $channel,
                        'package' => $name
                    ));
            }
        }

        $err = $this->doInstall('upgrade-all', $options, $toUpgrade);
        if (PEAR::isError($err)) {
            $this->ui->outputData($err->getMessage(), $command);
        }
   }

    // }}}
    // {{{ doUninstall()

    function doUninstall($command, $options, $params)
    {
        if (empty($this->installer)) {
            $this->installer = &$this->getInstaller($this->ui);
        }
        if (isset($options['remoteconfig'])) {
            $e = $this->config->readFTPConfigFile($options['remoteconfig']);
            if (!PEAR::isError($e)) {
                $this->installer->setConfig($this->config);
            }
        }
        if (sizeof($params) < 1) {
            return $this->raiseError("Please supply the package(s) you want to uninstall");
        }
        $reg = &$this->config->getRegistry();
        $newparams = array();
        $badparams = array();
        foreach ($params as $pkg) {
            $channel = $this->config->get('default_channel');
            PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
            $parsed = $reg->parsePackageName($pkg, $channel);
            PEAR::staticPopErrorHandling();
            if (!$parsed || PEAR::isError($parsed)) {
                $badparams[] = $pkg;
                continue;
            }
            $package = $parsed['package'];
            $channel = $parsed['channel'];
            $info = &$reg->getPackage($package, $channel);
            if ($info === null &&
                 ($channel == 'pear.php.net' || $channel == 'pecl.php.net')) {
                // make sure this isn't a package that has flipped from pear to pecl but
                // used a package.xml 1.0
                $testc = ($channel == 'pear.php.net') ? 'pecl.php.net' : 'pear.php.net';
                $info = &$reg->getPackage($package, $testc);
                if ($info !== null) {
                    $channel = $testc;
                }
            }
            if ($info === null) {
                $badparams[] = $pkg;