initial version

lib/Command/ListCommand.php

@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2022 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\LockPick\Command;
+
+use OC\Core\Command\Base;
+use OCA\LockPick\TraceStore;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class ListCommand extends Base {
+	private TraceStore $store;
+
+	public function __construct(TraceStore $store) {
+		parent::__construct();
+
+		$this->store = $store;
+	}
+
+	protected function configure() {
+		$this
+			->setName('lockpick:list')
+			->setDescription('List stored conflict traces');
+		parent::configure();
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		$traces = $this->store->all();
+
+		foreach ($traces as $id => $request) {
+			$output->writeln("$id - $request");
+		}
+		return 0;
+	}
+}
+

lib/Command/Show.php

@@ -0,0 +1,83 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2022 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\LockPick\Command;
+
+use OC\Core\Command\Base;
+use OCA\LockPick\BackTraceFormatter;
+use OCA\LockPick\TraceStore;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class Show extends Base {
+	private TraceStore $store;
+	private BackTraceFormatter $traceFormatter;
+
+	public function __construct(TraceStore $store, BackTraceFormatter $traceFormatter) {
+		parent::__construct();
+
+		$this->store = $store;
+		$this->traceFormatter = $traceFormatter;
+	}
+
+	protected function configure() {
+		$this
+			->setName('lockpick:show')
+			->setDescription('Show the latest detected lock conflict')
+			->addArgument('trace_id', InputArgument::OPTIONAL, "Id of the trace to show, default to the latest trace");
+		parent::configure();
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		$id = $input->getArgument('trace_id');
+		if ($id) {
+			$traces = $this->store->get((int)$id);
+
+			if (!is_array($traces)) {
+				$output->writeln("Trace not found");
+				return 1;
+			}
+		} else {
+			$traces = $this->store->last();
+
+			if (!is_array($traces)) {
+				$output->writeln("No conflict stored");
+				return 1;
+			}
+		}
+
+		$output->writeln("<info>Conflict detected between " . count($traces) . " locks</info>");
+		$first = true;
+		foreach ($traces as $item) {
+			if (!$first) {
+				$output->writeln("");
+			}
+			$first = false;
+			$output->writeln($item->getTypeName() . " lock from");
+			$output->writeln($this->traceFormatter->format($item->getBacktrace(), "  "));
+		}
+
+		return 0;
+	}
+}