installer.php

php-4.4.7学习linux时下载的源代码

            } else {
                if ($usechannel != $channel) {
                    $installregistry->deletePackage($pkgname, $usechannel);
                    $ret = $installregistry->addPackage2($pkg);
                } else {
                    $ret = $installregistry->updatePackage2($pkg);
                }
                $installphase = 'upgrade';
            }
        }
        if (!$ret) {
            $this->configSet('default_channel', $savechannel);
            return $this->raiseError("Adding package $channel/$pkgname to registry failed");
        }
        // }}}
        $this->configSet('default_channel', $savechannel);
        if (class_exists('PEAR_Task_Common')) { // this is auto-included if any tasks exist
            if (PEAR_Task_Common::hasPostinstallTasks()) {
                PEAR_Task_Common::runPostinstallTasks($installphase);
            }
        }
        return $pkg->toArray(true);
    }

    // }}}

    // {{{ _compileSourceFiles()
    /**
     * @param string
     * @param PEAR_PackageFile_v1|PEAR_PackageFile_v2
     */
    function _compileSourceFiles($savechannel, &$filelist)
    {
        require_once 'PEAR/Builder.php';
        $this->log(1, "$this->source_files source files, building");
        $bob = &new PEAR_Builder($this->ui);
        $bob->debug = $this->debug;
        $built = $bob->build($filelist, array(&$this, '_buildCallback'));
        if (PEAR::isError($built)) {
            $this->rollbackFileTransaction();
            $this->configSet('default_channel', $savechannel);
            return $built;
        }
        $this->log(1, "\nBuild process completed successfully");
        foreach ($built as $ext) {
            $bn = basename($ext['file']);
            list($_ext_name, $_ext_suff) = explode('.', $bn);
            if ($_ext_suff == '.so' || $_ext_suff == '.dll') {
                if (extension_loaded($_ext_name)) {
                    $this->raiseError("Extension '$_ext_name' already loaded. " .
                                      'Please unload it in your php.ini file ' .
                                      'prior to install or upgrade');
                }
                $role = 'ext';
            } else {
                $role = 'src';
            }
            $dest = $ext['dest'];
            $this->log(1, "Installing '$ext[file]'");
            $packagingroot = '';
            if (isset($this->_options['packagingroot'])) {
                $packagingroot = $this->_options['packagingroot'];
            }
            $copyto = $this->_prependPath($dest, $packagingroot);
            $copydir = dirname($copyto);
            // pretty much nothing happens if we are only registering the install
            if (empty($this->_options['register-only'])) {
                if (!@is_dir($copydir)) {
                    if (!$this->mkDirHier($copydir)) {
                        return $this->raiseError("failed to mkdir $copydir",
                            PEAR_INSTALLER_FAILED);
                    }
                    $this->log(3, "+ mkdir $copydir");
                }
                if (!@copy($ext['file'], $copyto)) {
                    return $this->raiseError("failed to write $copyto", PEAR_INSTALLER_FAILED);
                }
                $this->log(3, "+ cp $ext[file] $copyto");
                if (!OS_WINDOWS) {
                    $mode = 0666 & ~(int)octdec($this->config->get('umask'));
                    $this->addFileOperation('chmod', array($mode, $copyto));
                    if (!@chmod($copyto, $mode)) {
                        $this->log(0, "failed to change mode of $copyto");
                    }
                }
                $this->addFileOperation('rename', array($ext['file'], $copyto));
            }

            if ($filelist->getPackageXmlVersion() == '1.0') {
                $filelist->installedFile($bn, array(
                    'role' => $role,
                    'name' => $bn,
                    'installed_as' => $dest,
                    'php_api' => $ext['php_api'],
                    'zend_mod_api' => $ext['zend_mod_api'],
                    'zend_ext_api' => $ext['zend_ext_api'],
                    ));
            } else {
                $filelist->installedFile($bn, array('attribs' => array(
                    'role' => $role,
                    'name' => $bn,
                    'installed_as' => $dest,
                    'php_api' => $ext['php_api'],
                    'zend_mod_api' => $ext['zend_mod_api'],
                    'zend_ext_api' => $ext['zend_ext_api'],
                    )));
            }
        }
    }

    // }}}
    function &getUninstallPackages()
    {
        return $this->_downloadedPackages;
    }
    // {{{ uninstall()

    /**
     * Uninstall a package
     *
     * This method removes all files installed by the application, and then
     * removes any empty directories.
     * @param string package name
     * @param array Command-line options.  Possibilities include:
     *
     *              - installroot: base installation dir, if not the default
     *              - nodeps: do not process dependencies of other packages to ensure
     *                        uninstallation does not break things
     */
    function uninstall($package, $options = array())
    {
        if (isset($options['installroot'])) {
            $this->config->setInstallRoot($options['installroot']);
            $this->installroot = '';
        } else {
            $this->config->setInstallRoot('');
            $this->installroot = '';
        }
        $this->_registry = &$this->config->getRegistry();
        if (is_object($package)) {
            $channel = $package->getChannel();
            $pkg = $package;
            $package = $pkg->getPackage();
        } else {
            $pkg = false;
            $info = $this->_registry->parsePackageName($package,
                $this->config->get('default_channel'));
            $channel = $info['channel'];
            $package = $info['package'];
        }
        $savechannel = $this->config->get('default_channel');
        $this->configSet('default_channel', $channel);
        if (!is_object($pkg)) {
            $pkg = $this->_registry->getPackage($package, $channel);
        }
        if (!$pkg) {
            $this->configSet('default_channel', $savechannel);
            return $this->raiseError($this->_registry->parsedPackageNameToString(
                array(
                    'channel' => $channel,
                    'package' => $package
                ), true) . ' not installed');
        }
        if ($pkg->getInstalledBinary()) {
            // this is just an alias for a binary package
            return $this->_registry->deletePackage($package, $channel);
        }
        $filelist = $pkg->getFilelist();
        PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
        if (!class_exists('PEAR_Dependency2')) {
            require_once 'PEAR/Dependency2.php';
        }
        $depchecker = &new PEAR_Dependency2($this->config, $options, 
            array('channel' => $channel, 'package' => $package),
            PEAR_VALIDATE_UNINSTALLING);
        $e = $depchecker->validatePackageUninstall($this);
        PEAR::staticPopErrorHandling();
        if (PEAR::isError($e)) {
            if (!isset($options['ignore-errors'])) {
                return $this->raiseError($e);
            } else {
                if (!isset($options['soft'])) {
                    $this->log(0, 'WARNING: ' . $e->getMessage());
                }
            }
        } elseif (is_array($e)) {
            if (!isset($options['soft'])) {
                $this->log(0, $e[0]);
            }
        }
        // {{{ Delete the files
        $this->startFileTransaction();
        PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
        if (PEAR::isError($err = $this->_deletePackageFiles($package, $channel))) {
            PEAR::popErrorHandling();
            $this->rollbackFileTransaction();
            $this->configSet('default_channel', $savechannel);
            if (!isset($options['ignore-errors'])) {
                return $this->raiseError($err);
            } else {
                if (!isset($options['soft'])) {
                    $this->log(0, 'WARNING: ' . $err->getMessage());
                }
            }
        } else {
            PEAR::popErrorHandling();
        }
        if (!$this->commitFileTransaction()) {
            $this->rollbackFileTransaction();
            if (!isset($options['ignore-errors'])) {
                return $this->raiseError("uninstall failed");
            } elseif (!isset($options['soft'])) {
                $this->log(0, 'WARNING: uninstall failed');
            }
        } else {
            $this->startFileTransaction();
            if ($dirtree = $pkg->getDirTree()) {
                // attempt to delete empty directories
                uksort($dirtree, array($this, '_sortDirs'));
                foreach($dirtree as $dir => $notused) {
                    $this->addFileOperation('rmdir', array($dir));
                }
            } else {
                $this->configSet('default_channel', $savechannel);
                return $this->_registry->deletePackage($package, $channel);
            }
            if (!$this->commitFileTransaction()) {
                $this->rollbackFileTransaction();
            }
        }
        // }}}

        $this->configSet('default_channel', $savechannel);
        // Register that the package is no longer installed
        return $this->_registry->deletePackage($package, $channel);
    }

    /**
     * Sort a list of arrays of array(downloaded packagefilename) by dependency.
     *
     * It also removes duplicate dependencies
     * @param array an array of PEAR_PackageFile_v[1/2] objects
     * @return array|PEAR_Error array of array(packagefilename, package.xml contents)
     */
    function sortPackagesForUninstall(&$packages)
    {
        $this->_dependencyDB = &PEAR_DependencyDB::singleton($this->config);
        if (PEAR::isError($this->_dependencyDB)) {
            return $this->_dependencyDB;
        }
        usort($packages, array(&$this, '_sortUninstall'));
    }

    function _sortUninstall($a, $b)
    {
        if (!$a->getDeps() && !$b->getDeps()) {
            return 0; // neither package has dependencies, order is insignificant
        }
        if ($a->getDeps() && !$b->getDeps()) {
            return -1; // $a must be installed after $b because $a has dependencies
        }
        if (!$a->getDeps() && $b->getDeps()) {
            return 1; // $b must be installed after $a because $b has dependencies
        }
        // both packages have dependencies
        if ($this->_dependencyDB->dependsOn($a, $b)) {
            return -1;
        }
        if ($this->_dependencyDB->dependsOn($b, $a)) {
            return 1;
        }
        return 0;
    }

    // }}}
    // {{{ _sortDirs()
    function _sortDirs($a, $b)
    {
        if (strnatcmp($a, $b) == -1) return 1;
        if (strnatcmp($a, $b) == 1) return -1;
        return 0;
    }

    // }}}

    // {{{ _buildCallback()

    function _buildCallback($what, $data)
    {
        if (($what == 'cmdoutput' && $this->debug > 1) ||
            ($what == 'output' && $this->debug > 0)) {
            $this->ui->outputData(rtrim($data), 'build');
        }
    }

    // }}}
}

// {{{ md5_file() utility function
if (!function_exists("md5_file")) {
    function md5_file($filename) {
        $fp = fopen($filename, "r");
        if (!$fp) return null;
        if (function_exists('file_get_contents')) {
            fclose($fp);
            $contents = file_get_contents($filename);
        } else {
            $contents = fread($fp, filesize($filename));
            fclose($fp);
        }
        return md5($contents);
    }
}
// }}}

?>