try to fix binary permissions on install/upgrade

appinfo/info.xml

@@ -7,7 +7,7 @@
 	<description><![CDATA[Push update support for desktop app.
 
 Once the app is installed, the push binary needs to be setup. You can either use the setup wizard with `occ notify_push:setup` or see the [README](http://github.com/nextcloud/notify_push) for detailed setup instructions]]></description>
-	<version>0.1.2</version>
+	<version>0.1.3</version>
 	<licence>agpl</licence>
 	<author>Robin Appelman</author>
 	<namespace>NotifyPush</namespace>
@@ -26,6 +26,12 @@ Once the app is installed, the push binary needs to be setup. You can either use
 		<nextcloud min-version="21" max-version="21"/>
 	</dependencies>
 
+	<repair-steps>
+		<install>
+			<step>OCA\NotifyPush\Migration\Install</step>
+		</install>
+	</repair-steps>
+
 	<commands>
 		<command>OCA\NotifyPush\Command\Setup</command>
 		<command>OCA\NotifyPush\Command\SelfTest</command>

lib/Migration/Install.php

+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2021 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\NotifyPush\Migration;
+
+use OCA\NotifyPush\SetupWizard;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class Install  implements IRepairStep {
+	private $setupWizard;
+
+	public function __construct(SetupWizard $setupWizard) {
+		$this->setupWizard = $setupWizard;
+	}
+
+	public function getName() {
+		return 'Set binary permissions';
+	}
+
+	public function run(IOutput $output) {
+		$this->setupWizard->testBinary();
+	}
+}

lib/SetupWizard.php

@@ -81,9 +81,10 @@ class SetupWizard {
 		$path = $this->getBinaryPath();
 		@chmod($path, 0755);
 		$appVersion = $this->appManager->getAppVersion("notify_push");
+		$appVersion = substr($appVersion, 0, strrpos($appVersion, '.'));
 		$output = [];
 		exec("$path --version", $output);
-		return count($output) === 1 && $output[0] === "notify_push $appVersion";
+		return count($output) === 1 && strpos($output[0], "notify_push $appVersion") === 0;
 	}
 
 	public function isPortFree(): bool {