loadCanBeUpgradedFrom()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 5

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 2

Importance

Changes 0
Metric Value
c 0
b 0
f 0
dl 0
loc 5
ccs 0
cts 3
cp 0
rs 10
cc 1
nc 1
nop 1
crap 2
1
<?php
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/**
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 * @author Victor Dubiniuk <[email protected]>
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 *
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 * @copyright Copyright (c) 2015, ownCloud, Inc.
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 * @license AGPL-3.0
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 *
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 * This code is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Affero General Public License, version 3,
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 * as published by the Free Software Foundation.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU Affero General Public License for more details.
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 *
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 * You should have received a copy of the GNU Affero General Public License, version 3,
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>
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 *
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 */
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namespace Owncloud\Updater\Command;
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use Owncloud\Updater\Utils\Checkpoint;
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use Owncloud\Updater\Utils\FilesystemHelper;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Process\Exception\ProcessFailedException;
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use Owncloud\Updater\Utils\OccRunner;
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use Owncloud\Updater\Utils\ZipExtractor;
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/**
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 * Class ExecuteCoreUpgradeScriptsCommand
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 *
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 * @package Owncloud\Updater\Command
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 */
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class ExecuteCoreUpgradeScriptsCommand extends Command {
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	/**
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	 * @var OccRunner $occRunner
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	 */
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	protected $occRunner;
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	/**
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	 * ExecuteCoreUpgradeScriptsCommand constructor.
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	 *
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	 * @param null|string $occRunner
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	 */
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	public function __construct($occRunner){
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		parent::__construct();
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		$this->occRunner = $occRunner;
0 ignored issues
show
Documentation Bug introduced by
It seems like $occRunner can also be of type string. However, the property $occRunner is declared as type object<Owncloud\Updater\Utils\OccRunner>. Maybe add an additional type check?

Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.

For example, imagine you have a variable $accountId that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the id property of an instance of the Account class. This class holds a proper account, so the id value must no longer be false.

Either this assignment is in error or a type check should be added for that assignment.

class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
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	}
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	protected function configure(){
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		$this
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				->setName('upgrade:executeCoreUpgradeScripts')
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				->setDescription('execute core upgrade scripts [danger, might take long]');
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	}
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	/**
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	 * @param InputInterface $input
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	 * @param OutputInterface $output
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	 * @throws \Exception
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	 */
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	protected function execute(InputInterface $input, OutputInterface $output){
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		$locator = $this->container['utils.locator'];
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		/** @var FilesystemHelper $fsHelper */
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		$fsHelper = $this->container['utils.filesystemhelper'];
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		$registry = $this->container['utils.registry'];
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		$fetcher = $this->container['utils.fetcher'];
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		/** @var Checkpoint $checkpoint */
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		$checkpoint = $this->container['utils.checkpoint'];
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		$installedVersion = implode('.', $locator->getInstalledVersion());
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		$registry->set('installedVersion', $installedVersion);
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		/** @var  \Owncloud\Updater\Utils\Feed $feed */
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		$feed = $registry->get('feed');
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		if ($feed){
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			$path = $fetcher->getBaseDownloadPath($feed);
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			$fullExtractionPath = $locator->getExtractionBaseDir() . '/' . $feed->getVersion();
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			if (file_exists($fullExtractionPath)){
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				$fsHelper->removeIfExists($fullExtractionPath);
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			}
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			try{
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				$fsHelper->mkdir($fullExtractionPath, true);
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			} catch (\Exception $e){
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					$output->writeln('Unable create directory ' . $fullExtractionPath);
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					throw $e;
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			}
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			$output->writeln('Extracting source into ' . $fullExtractionPath);
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			$extractor = new ZipExtractor($path, $fullExtractionPath, $output);
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			try{
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				$extractor->extract();
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			} catch (\Exception $e){
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				$output->writeln('Extraction has been failed');
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				$fsHelper->removeIfExists($locator->getExtractionBaseDir());
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				throw $e;
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			}
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			$tmpDir = $locator->getExtractionBaseDir() . '/' . $installedVersion;
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			$fsHelper->removeIfExists($tmpDir);
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			$fsHelper->mkdir($tmpDir);
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			$oldSourcesDir = $locator->getOwncloudRootPath();
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			$newSourcesDir = $fullExtractionPath . '/owncloud';
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			$packageVersion = $this->loadVersion($newSourcesDir);
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			$allowedPreviousVersions = $this->loadAllowedPreviousVersions($newSourcesDir);
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			if (!$this->isUpgradeAllowed($installedVersion, $packageVersion, $allowedPreviousVersions)){
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				$message = sprintf(
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					'Update from %s to %s is not possible. Updates between multiple major versions and downgrades are unsupported.',
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					$installedVersion,
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					$packageVersion
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				);
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				$this->getApplication()->getLogger()->error($message);
0 ignored issues
show
Bug introduced by
It seems like you code against a specific sub-type and not the parent class Symfony\Component\Console\Application as the method getLogger() does only exist in the following sub-classes of Symfony\Component\Console\Application: Owncloud\Updater\Console\Application. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
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				$output->writeln('<error>'. $message .'</error>');
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				return 1;
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			}
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			$rootDirContent = array_unique(
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				array_merge(
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					$locator->getRootDirContent(),
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					$locator->getRootDirItemsFromSignature($oldSourcesDir),
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					$locator->getRootDirItemsFromSignature($newSourcesDir)
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				)
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			);
133 View Code Duplication
			foreach ($rootDirContent as $dir){
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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				if ($dir === 'updater') {
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					continue;
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				}
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				$this->getApplication()->getLogger()->debug('Replacing ' . $dir);
0 ignored issues
show
Bug introduced by
It seems like you code against a specific sub-type and not the parent class Symfony\Component\Console\Application as the method getLogger() does only exist in the following sub-classes of Symfony\Component\Console\Application: Owncloud\Updater\Console\Application. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
Loading history...
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				$fsHelper->tripleMove($oldSourcesDir, $newSourcesDir, $tmpDir, $dir);
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			}
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			$fsHelper->copyr($tmpDir . '/config/config.php', $oldSourcesDir . '/config/config.php');
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			//Get a new shipped apps list
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			$newAppsDir = $fullExtractionPath . '/owncloud/apps';
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			$newAppsList = $fsHelper->scandirFiltered($newAppsDir);
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			//Remove old apps
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			$appDirectories = $fsHelper->scandirFiltered($oldSourcesDir . '/apps');
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			$oldAppList = array_intersect($appDirectories, $newAppsList);
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			foreach ($oldAppList as $appDirectory){
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				$fsHelper->rmdirr($oldSourcesDir . '/apps/' . $appDirectory);
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			}
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			foreach ($newAppsList as $appId){
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				$output->writeln('Copying the application ' . $appId);
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				$fsHelper->copyr($newAppsDir . '/' . $appId, $locator->getOwnCloudRootPath() . '/apps/' . $appId, false);
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			}
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			try {
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				$plain = $this->occRunner->run('upgrade');
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				$output->writeln($plain);
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			} catch (ProcessFailedException $e){
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				$lastCheckpointId = $checkpoint->getLastCheckpointId();
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				if ($lastCheckpointId){
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					$lastCheckpointPath = $checkpoint->getCheckpointPath($lastCheckpointId);
0 ignored issues
show
Bug introduced by
It seems like $lastCheckpointId defined by $checkpoint->getLastCheckpointId() on line 163 can also be of type boolean; however, Owncloud\Updater\Utils\C...nt::getCheckpointPath() does only seem to accept string, maybe add an additional type check?

If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:

/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.

Loading history...
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					$fsHelper->copyr($lastCheckpointPath . '/apps', $oldSourcesDir . '/apps', false);
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				}
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				if ($e->getProcess()->getExitCode() != 3){
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					throw ($e);
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				}
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			}
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		}
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	}
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	public function isUpgradeAllowed($installedVersion, $packageVersion, $canBeUpgradedFrom){
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		if (version_compare($installedVersion, $packageVersion, '<=')){
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			foreach ($canBeUpgradedFrom as $allowedPreviousVersion){
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				if (version_compare($allowedPreviousVersion, $installedVersion, '<=')){
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					return true;
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				}
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			}
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		}
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		return false;
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	}
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	/**
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	 * @param string $pathToPackage
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	 * @return string
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	 */
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	protected function loadVersion($pathToPackage){
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		require  $pathToPackage . '/version.php';
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		/** @var $OC_Version array */
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		return implode('.', $OC_Version);
0 ignored issues
show
Bug introduced by
The variable $OC_Version does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

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194
	}
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	/**
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	 * @param string $pathToPackage
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	 * @return string[]
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	 */
200 2
	protected function loadAllowedPreviousVersions($pathToPackage) {
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		$canBeUpgradedFrom = $this->loadCanBeUpgradedFrom($pathToPackage);
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		$firstItem = reset($canBeUpgradedFrom);
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		if (!is_array($firstItem)){
205 1
			$canBeUpgradedFrom = [$canBeUpgradedFrom];
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		}
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208 2
		$allowedVersions = [];
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		foreach ($canBeUpgradedFrom as $version){
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			$allowedVersions[] = implode('.', $version);
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		}
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		return $allowedVersions;
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	}
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	/**
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	 * @param string $pathToPackage
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	 * @return array
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	 */
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	protected function loadCanBeUpgradedFrom($pathToPackage){
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		require $pathToPackage . '/version.php';
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		/** @var array $OC_VersionCanBeUpgradedFrom */
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		return $OC_VersionCanBeUpgradedFrom;
0 ignored issues
show
Bug introduced by
The variable $OC_VersionCanBeUpgradedFrom does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

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	}
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}
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