diff --git a/bin/cli b/bin/cli
index 07c906e..e6f3dd3 100644
--- a/bin/cli
+++ b/bin/cli
@@ -56,5 +56,5 @@ try {
 } catch (Exception $exception) {
     echo '[ERROR] Exception ' . $exception->getCode() . ' thrown:' . PHP_EOL;
     echo $exception->getMessage() . PHP_EOL;
-    return 1;
+    exit(1);
 }
diff --git a/src/Configuration.php b/src/Configuration.php
index 26ab08c..682752b 100644
--- a/src/Configuration.php
+++ b/src/Configuration.php
@@ -159,13 +159,13 @@ class Configuration
     /**
      * Load and validate configuration settings from YAML file.
      *
-     * @throws FileNotFoundException|ValidationFailedException
+     * @throws FileNotFoundException | ValidationFailedException
      */
     private function __construct()
     {
         try {
             $this->settings = $this->loadConfigFile();
-        } catch (FileNotFoundException|ValidationFailedException $exception) {
+        } catch (FileNotFoundException | ValidationFailedException $exception) {
             throw $exception;
         }
     }
diff --git a/src/Console.php b/src/Console.php
index c6626e1..7ef0a31 100644
--- a/src/Console.php
+++ b/src/Console.php
@@ -67,12 +67,14 @@ abstract class Console extends Command
         if ($limit < 0) {
             return -1;
         }
-        $unit = strtolower($ini[strlen($ini)-1]);
-        switch($unit) {
+        $unit = strtolower($ini[strlen($ini) - 1]);
+        switch ($unit) {
             case 'g':
                 $limit *= 1024;
+                // no break
             case 'm':
                 $limit *= 1024;
+                // no break
             case 'k':
                 $limit *= 1024;
         }
diff --git a/src/Console/AddRecordCommand.php b/src/Console/AddRecordCommand.php
index 01121c8..b949033 100644
--- a/src/Console/AddRecordCommand.php
+++ b/src/Console/AddRecordCommand.php
@@ -91,7 +91,9 @@ class AddRecordCommand extends Console
         /** @var string */
         $identifier = $input->getArgument('identifier');
         /** @var Format */
-        $format = Database::getInstance()->getEntityManager()->getReference(Format::class, $input->getArgument('format'));
+        $format = Database::getInstance()
+            ->getEntityManager()
+            ->getReference(Format::class, $input->getArgument('format'));
         /** @var string */
         $file = $input->getArgument('file');
         /** @var string[] */
@@ -105,7 +107,9 @@ class AddRecordCommand extends Console
         }
         foreach ($sets as $set) {
             /** @var Set */
-            $setSpec = Database::getInstance()->getEntityManager()->getReference(Set::class, $set);
+            $setSpec = Database::getInstance()
+                ->getEntityManager()
+                ->getReference(Set::class, $set);
             $record->addSet($setSpec);
         }
 
diff --git a/src/Console/CsvImportCommand.php b/src/Console/CsvImportCommand.php
index cba0591..5386d97 100644
--- a/src/Console/CsvImportCommand.php
+++ b/src/Console/CsvImportCommand.php
@@ -125,7 +125,9 @@ class CsvImportCommand extends Console
         /** @var array<string, string> */
         $arguments = $input->getArguments();
         /** @var Format */
-        $format = Database::getInstance()->getEntityManager()->getReference(Format::class, $arguments['format']);
+        $format = Database::getInstance()
+            ->getEntityManager()
+            ->getReference(Format::class, $arguments['format']);
         /** @var bool */
         $noValidation = $input->getOption('noValidation');
         /** @var resource */
@@ -152,7 +154,9 @@ class CsvImportCommand extends Console
                 $sets = $row[$columns['setColumn']];
                 foreach (explode(',', $sets) as $set) {
                     /** @var Set */
-                    $setSpec = Database::getInstance()->getEntityManager()->getReference(Set::class, trim($set));
+                    $setSpec = Database::getInstance()
+                        ->getEntityManager()
+                        ->getReference(Set::class, trim($set));
                     $record->addSet($setSpec);
                 }
             }
@@ -164,7 +168,9 @@ class CsvImportCommand extends Console
 
             // Flush to database if memory usage reaches 50% or every 10.000 records.
             if ((memory_get_usage() / $phpMemoryLimit) > 0.5 || ($count % 10000) === 0) {
-                $progressIndicator->setMessage('Importing... ' . (string) $count . ' records processed. Flushing to database...');
+                $progressIndicator->setMessage(
+                    'Importing... ' . (string) $count . ' records processed. Flushing to database...'
+                );
                 Database::getInstance()->flush([Record::class]);
             }
         }
@@ -211,7 +217,7 @@ class CsvImportCommand extends Console
                 '',
                 sprintf(
                     ' [ERROR] File "%s" does not contain valid CSV. ',
-                    stream_get_meta_data($file)['uri']
+                    stream_get_meta_data($file)['uri'] ?? 'unknown'
                 ),
                 ''
             ]);
@@ -228,7 +234,7 @@ class CsvImportCommand extends Console
                 '',
                 sprintf(
                     ' [ERROR] File "%s" does not contain valid CSV. ',
-                    stream_get_meta_data($file)['uri']
+                    stream_get_meta_data($file)['uri'] ?? 'unknown'
                 ),
                 ''
             ]);
diff --git a/src/Console/UpdateFormatsCommand.php b/src/Console/UpdateFormatsCommand.php
index dd65bca..98afc42 100644
--- a/src/Console/UpdateFormatsCommand.php
+++ b/src/Console/UpdateFormatsCommand.php
@@ -56,7 +56,9 @@ class UpdateFormatsCommand extends Console
     {
         $formats = Configuration::getInstance()->metadataPrefix;
         $this->clearResultCache();
-        $inDatabase = Database::getInstance()->getMetadataFormats()->getQueryResult();
+        $inDatabase = Database::getInstance()
+            ->getMetadataFormats()
+            ->getQueryResult();
         $added = 0;
         $deleted = 0;
         $failure = false;
diff --git a/src/Database.php b/src/Database.php
index cd6eeb3..be378be 100644
--- a/src/Database.php
+++ b/src/Database.php
@@ -322,8 +322,7 @@ class Database
         ?DateTime $from = null,
         ?DateTime $until = null,
         ?Set $set = null
-    ): Result
-    {
+    ): Result {
         $maxRecords = Configuration::getInstance()->maxRecords;
         $cursor = $counter * $maxRecords;
 
@@ -551,7 +550,7 @@ class Database
             )
         );
         $configuration->setSchemaAssetsFilter(
-            static function(string|AbstractAsset $assetName): bool {
+            static function (string|AbstractAsset $assetName): bool {
                 if ($assetName instanceof AbstractAsset) {
                     $assetName = $assetName->getName();
                 }
diff --git a/src/Entity.php b/src/Entity.php
index 3db7ef7..4e666ea 100644
--- a/src/Entity.php
+++ b/src/Entity.php
@@ -107,8 +107,10 @@ abstract class Entity
                 new Assert\NotBlank()
             ]
         );
-        if ($violations->count() > 0
-            or simplexml_load_string($xml) === false) {
+        if (
+            $violations->count() > 0
+            or simplexml_load_string($xml) === false
+        ) {
             throw new ValidationFailedException(null, $violations);
         }
         return $xml;
diff --git a/src/Entity/Set.php b/src/Entity/Set.php
index 46b4423..0551f63 100644
--- a/src/Entity/Set.php
+++ b/src/Entity/Set.php
@@ -201,7 +201,10 @@ class Set extends Entity
     public function __construct(string $spec, ?string $name = null, string $description = null)
     {
         try {
-            $this->spec = $this->validateRegEx($spec, '/^([A-Za-z0-9\-_\.!~\*\'\(\)])+(:[A-Za-z0-9\-_\.!~\*\'\(\)]+)*$/');
+            $this->spec = $this->validateRegEx(
+                $spec,
+                '/^([A-Za-z0-9\-_\.!~\*\'\(\)])+(:[A-Za-z0-9\-_\.!~\*\'\(\)]+)*$/'
+            );
             $this->setName($name);
             $this->setDescription($description);
             $this->records = new ArrayCollection();