Uses early returns.

To improve code readability.

Signed-off-by: Faraz Samapoor <fsa@adlas.at>

apps/encryption/lib/Command/DisableMasterKey.php

@@ -33,21 +33,23 @@ class DisableMasterKey extends Command {
 
 		if (!$isMasterKeyEnabled) {
 			$output->writeln('Master key already disabled');
-		} else {
-			$question = new ConfirmationQuestion(
-				'Warning: Only perform this operation for a fresh installations with no existing encrypted data! '
-				. 'There is no way to enable the master key again. '
-				. 'We strongly recommend to keep the master key, it provides significant performance improvements '
-				. 'and is easier to handle for both, users and administrators. '
-				. 'Do you really want to switch to per-user keys? (y/n) ', false);
-			if ($this->questionHelper->ask($input, $output, $question)) {
-				$this->config->setAppValue('encryption', 'useMasterKey', '0');
-				$output->writeln('Master key successfully disabled.');
-			} else {
-				$output->writeln('aborted.');
-				return self::FAILURE;
-			}
+			return self::SUCCESS;
 		}
-		return self::SUCCESS;
+
+		$question = new ConfirmationQuestion(
+			'Warning: Only perform this operation for a fresh installations with no existing encrypted data! '
+			. 'There is no way to enable the master key again. '
+			. 'We strongly recommend to keep the master key, it provides significant performance improvements '
+			. 'and is easier to handle for both, users and administrators. '
+			. 'Do you really want to switch to per-user keys? (y/n) ', false);
+
+		if ($this->questionHelper->ask($input, $output, $question)) {
+			$this->config->setAppValue('encryption', 'useMasterKey', '0');
+			$output->writeln('Master key successfully disabled.');
+			return self::SUCCESS;
+		}
+
+		$output->writeln('aborted.');
+		return self::FAILURE;
 	}
 }

apps/encryption/lib/Command/EnableMasterKey.php

@@ -35,18 +35,20 @@ class EnableMasterKey extends Command {
 
 		if ($isAlreadyEnabled) {
 			$output->writeln('Master key already enabled');
-		} else {
-			$question = new ConfirmationQuestion(
-				'Warning: Only available for fresh installations with no existing encrypted data! '
+			return self::SUCCESS;
+		}
+
+		$question = new ConfirmationQuestion(
+			'Warning: Only available for fresh installations with no existing encrypted data! '
 			. 'There is also no way to disable it again. Do you want to continue? (y/n) ', false);
-			if ($this->questionHelper->ask($input, $output, $question)) {
-				$this->config->setAppValue('encryption', 'useMasterKey', '1');
-				$output->writeln('Master key successfully enabled.');
-			} else {
-				$output->writeln('aborted.');
-				return self::FAILURE;
-			}
+
+		if ($this->questionHelper->ask($input, $output, $question)) {
+			$this->config->setAppValue('encryption', 'useMasterKey', '1');
+			$output->writeln('Master key successfully enabled.');
+			return self::SUCCESS;
 		}
-		return self::SUCCESS;
+
+		$output->writeln('aborted.');
+		return self::FAILURE;
 	}
 }

apps/encryption/lib/Command/FixEncryptedVersion.php

@@ -79,6 +79,11 @@ class FixEncryptedVersion extends Command {
 		$all = $input->getOption('all');
 		$pathOption = \trim(($input->getOption('path') ?? ''), '/');
 
+		if (!$user && !$all) {
+			$output->writeln("Either a user id or --all needs to be provided");
+			return self::FAILURE;
+		}
+
 		if ($user) {
 			if ($all) {
 				$output->writeln("Specifying a user id and --all are mutually exclusive");
@@ -91,18 +96,15 @@ class FixEncryptedVersion extends Command {
 			}
 
 			return $this->runForUser($user, $pathOption, $output);
-		} elseif ($all) {
-			$result = 0;
-			$this->userManager->callForSeenUsers(function (IUser $user) use ($pathOption, $output, &$result) {
-				$output->writeln("Processing files for " . $user->getUID());
-				$result = $this->runForUser($user->getUID(), $pathOption, $output);
-				return $result === 0;
-			});
-			return $result;
-		} else {
-			$output->writeln("Either a user id or --all needs to be provided");
-			return self::FAILURE;
 		}
+
+		$result = 0;
+		$this->userManager->callForSeenUsers(function (IUser $user) use ($pathOption, $output, &$result) {
+			$output->writeln("Processing files for " . $user->getUID());
+			$result = $this->runForUser($user->getUID(), $pathOption, $output);
+			return $result === 0;
+		});
+		return $result;
 	}
 
 	private function runForUser(string $user, string $pathOption, OutputInterface $output): int {