Improve web tools for viewing daemons

Summary:
- Provides an "all daemons" view to look at more than the first 15 daemons.
  - Provides a "combined log" view with a large page size, to quickly look at
the log across all the daemons, making it easier to find issues when you have a
bunch of the same daemon and only one is having issues.
  - When viewing the web console on the same host as a daemon, show whether it's
running or not.

Test Plan:
Clicked the various daemon log interfaces.

Reviewed By: aran
Reviewers: jungejason, tuomaspelkonen, aran
CC: aran
Differential Revision: 215

src/__phutil_library_map__.php

@@ -271,12 +271,16 @@ phutil_register_library_map(array(
     'PhabricatorConduitMethodCallLog' => 'applications/conduit/storage/methodcalllog',
     'PhabricatorController' => 'applications/base/controller/base',
     'PhabricatorDaemon' => 'infrastructure/daemon/base',
+    'PhabricatorDaemonCombinedLogController' => 'applications/daemon/controller/combined',
     'PhabricatorDaemonConsoleController' => 'applications/daemon/controller/console',
     'PhabricatorDaemonControl' => 'infrastructure/daemon/control',
     'PhabricatorDaemonController' => 'applications/daemon/controller/base',
     'PhabricatorDaemonDAO' => 'infrastructure/daemon/storage/base',
     'PhabricatorDaemonLog' => 'infrastructure/daemon/storage/log',
     'PhabricatorDaemonLogEvent' => 'infrastructure/daemon/storage/event',
+    'PhabricatorDaemonLogEventsView' => 'applications/daemon/view/daemonlogevents',
+    'PhabricatorDaemonLogListController' => 'applications/daemon/controller/loglist',
+    'PhabricatorDaemonLogListView' => 'applications/daemon/view/daemonloglist',
     'PhabricatorDaemonLogViewController' => 'applications/daemon/controller/logview',
     'PhabricatorDaemonReference' => 'infrastructure/daemon/control/reference',
     'PhabricatorDaemonTimelineConsoleController' => 'applications/daemon/controller/timeline',
@@ -675,11 +679,15 @@ phutil_register_library_map(array(
     'PhabricatorConduitMethodCallLog' => 'PhabricatorConduitDAO',
     'PhabricatorController' => 'AphrontController',
     'PhabricatorDaemon' => 'PhutilDaemon',
+    'PhabricatorDaemonCombinedLogController' => 'PhabricatorDaemonController',
     'PhabricatorDaemonConsoleController' => 'PhabricatorDaemonController',
     'PhabricatorDaemonController' => 'PhabricatorController',
     'PhabricatorDaemonDAO' => 'PhabricatorLiskDAO',
     'PhabricatorDaemonLog' => 'PhabricatorDaemonDAO',
     'PhabricatorDaemonLogEvent' => 'PhabricatorDaemonDAO',
+    'PhabricatorDaemonLogEventsView' => 'AphrontView',
+    'PhabricatorDaemonLogListController' => 'PhabricatorDaemonController',
+    'PhabricatorDaemonLogListView' => 'AphrontView',
     'PhabricatorDaemonLogViewController' => 'PhabricatorDaemonController',
     'PhabricatorDaemonTimelineConsoleController' => 'PhabricatorDaemonController',
     'PhabricatorDaemonTimelineEventController' => 'PhabricatorDaemonController',

src/aphront/default/configuration/AphrontDefaultApplicationConfiguration.php

@@ -231,6 +231,8 @@ class AphrontDefaultApplicationConfiguration
       '/daemon/' => array(
         'task/(?P<id>\d+)/$' => 'PhabricatorWorkerTaskDetailController',
         'log/' => array(
+          '$' => 'PhabricatorDaemonLogListController',
+          'combined/$' => 'PhabricatorDaemonCombinedLogController',
           '(?P<id>\d+)/$' => 'PhabricatorDaemonLogViewController',
         ),
         'timeline/$' => 'PhabricatorDaemonTimelineConsoleController',

src/applications/daemon/controller/combined/PhabricatorDaemonCombinedLogController.php

@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class PhabricatorDaemonCombinedLogController
+  extends PhabricatorDaemonController {
+
+
+  public function processRequest() {
+    $request = $this->getRequest();
+
+    $pager = new AphrontPagerView();
+    $pager->setOffset($request->getInt('page'));
+    $pager->setPageSize(1000);
+
+    $events = id(new PhabricatorDaemonLogEvent())->loadAllWhere(
+      '1 = 1 ORDER BY id DESC LIMIT %d, %d',
+      $pager->getOffset(),
+      $pager->getPageSize() + 1);
+
+    $events = $pager->sliceResults($events);
+    $pager->setURI($request->getRequestURI(), 'page');
+
+    $event_view = new PhabricatorDaemonLogEventsView();
+    $event_view->setEvents($events);
+    $event_view->setCombinedLog(true);
+
+    $log_panel = new AphrontPanelView();
+    $log_panel->setHeader('Combined Daemon Logs');
+    $log_panel->appendChild($event_view);
+    $log_panel->appendChild($pager);
+
+    return $this->buildStandardPageResponse(
+      $log_panel,
+      array(
+        'title' => 'Combined Daemon Log',
+      ));
+  }
+
+}

src/applications/daemon/controller/combined/__init__.php

@@ -0,0 +1,18 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/daemon/controller/base');
+phutil_require_module('phabricator', 'applications/daemon/view/daemonlogevents');
+phutil_require_module('phabricator', 'infrastructure/daemon/storage/event');
+phutil_require_module('phabricator', 'view/control/pager');
+phutil_require_module('phabricator', 'view/layout/panel');
+
+phutil_require_module('phutil', 'utils');
+
+
+phutil_require_source('PhabricatorDaemonCombinedLogController.php');

src/applications/daemon/controller/console/PhabricatorDaemonConsoleController.php

@@ -22,48 +22,26 @@ class PhabricatorDaemonConsoleController extends PhabricatorDaemonController {
     $logs = id(new PhabricatorDaemonLog())->loadAllWhere(
       '1 = 1 ORDER BY id DESC LIMIT 15');
 
-    $rows = array();
-    foreach ($logs as $log) {
-      $epoch = $log->getDateCreated();
-
-      $rows[] = array(
-        phutil_escape_html($log->getDaemon()),
-        phutil_escape_html($log->getHost()),
-        $log->getPID(),
-        date('M j, Y', $epoch),
-        date('g:i A', $epoch),
-        phutil_render_tag(
-          'a',
-          array(
-            'href' => '/daemon/log/'.$log->getID().'/',
-            'class' => 'button small grey',
-          ),
-          'View Log'),
-      );
-    }
-
-    $daemon_table = new AphrontTableView($rows);
-    $daemon_table->setHeaders(
-      array(
-        'Daemon',
-        'Host',
-        'PID',
-        'Date',
-        'Time',
-        'View',
-      ));
-    $daemon_table->setColumnClasses(
-      array(
-        'wide wrap',
-        '',
-        '',
-        '',
-        'right',
-        'action',
-      ));
+    $daemon_table = new PhabricatorDaemonLogListView();
+    $daemon_table->setDaemonLogs($logs);
 
     $daemon_panel = new AphrontPanelView();
-    $daemon_panel->setHeader('Recently Launched Daemons');
+    $daemon_panel->setHeader(
+      'Recently Launched Daemons'.
+      ' · '.
+      phutil_render_tag(
+        'a',
+        array(
+          'href' => '/daemon/log/',
+        ),
+        'View All Daemons').
+      ' · '.
+      phutil_render_tag(
+        'a',
+        array(
+          'href' => '/daemon/log/combined/',
+        ),
+        'View Combined Log'));
     $daemon_panel->appendChild($daemon_table);
 
     $tasks = id(new PhabricatorWorkerTask())->loadAllWhere(

src/applications/daemon/controller/console/__init__.php

@@ -7,6 +7,7 @@
 
 
 phutil_require_module('phabricator', 'applications/daemon/controller/base');
+phutil_require_module('phabricator', 'applications/daemon/view/daemonloglist');
 phutil_require_module('phabricator', 'infrastructure/daemon/storage/log');
 phutil_require_module('phabricator', 'infrastructure/daemon/timeline/storage/cursor');
 phutil_require_module('phabricator', 'infrastructure/daemon/workers/storage/task');

src/applications/daemon/controller/loglist/PhabricatorDaemonLogListController.php

@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class PhabricatorDaemonLogListController extends PhabricatorDaemonController {
+
+  public function processRequest() {
+    $request = $this->getRequest();
+
+    $pager = new AphrontPagerView();
+    $pager->setOffset($request->getInt('page'));
+
+    $logs = id(new PhabricatorDaemonLog())->loadAllWhere(
+      '1 = 1 ORDER BY id DESC LIMIT %d, %d',
+      $pager->getOffset(),
+      $pager->getPageSize() + 1);
+
+    $logs = $pager->sliceResults($logs);
+    $pager->setURI($request->getRequestURI(), 'page');
+
+    $daemon_table = new PhabricatorDaemonLogListView();
+    $daemon_table->setDaemonLogs($logs);
+
+    $daemon_panel = new AphrontPanelView();
+    $daemon_panel->setHeader('Launched Daemons');
+    $daemon_panel->appendChild($daemon_table);
+    $daemon_panel->appendChild($pager);
+
+    return $this->buildStandardPageResponse(
+      $daemon_panel,
+      array(
+        'title' => 'All Daemons',
+      ));
+  }
+
+}

src/applications/daemon/controller/loglist/__init__.php

@@ -0,0 +1,18 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/daemon/controller/base');
+phutil_require_module('phabricator', 'applications/daemon/view/daemonloglist');
+phutil_require_module('phabricator', 'infrastructure/daemon/storage/log');
+phutil_require_module('phabricator', 'view/control/pager');
+phutil_require_module('phabricator', 'view/layout/panel');
+
+phutil_require_module('phutil', 'utils');
+
+
+phutil_require_source('PhabricatorDaemonLogListController.php');

src/applications/daemon/controller/logview/PhabricatorDaemonLogViewController.php

@@ -34,7 +34,7 @@ class PhabricatorDaemonLogViewController extends PhabricatorDaemonController {
     }
 
     $events = id(new PhabricatorDaemonLogEvent())->loadAllWhere(
-      'logID = %d ORDER BY id DESC LIMIT 200',
+      'logID = %d ORDER BY id DESC LIMIT 1000',
       $log->getID());
 
     $content = array();
@@ -72,44 +72,19 @@ class PhabricatorDaemonLogViewController extends PhabricatorDaemonController {
 
     $content[] = $panel;
 
-    $rows = array();
-    foreach ($events as $event) {
-      $rows[] = array(
-        phutil_escape_html($event->getLogType()),
-        date('M j, Y', $event->getEpoch()),
-        date('g:i:s A', $event->getEpoch()),
-        str_replace("\n", '<br />', phutil_escape_html($event->getMessage())),
-      );
-    }
-
-    $log_table = new AphrontTableView($rows);
-    $log_table->setHeaders(
-      array(
-        'Type',
-        'Date',
-        'Time',
-        'Message',
-      ));
-    $log_table->setColumnClasses(
-      array(
-        '',
-        '',
-        'right',
-        'wide wrap',
-      ));
+    $event_view = new PhabricatorDaemonLogEventsView();
+    $event_view->setEvents($events);
 
     $log_panel = new AphrontPanelView();
     $log_panel->setHeader('Daemon Logs');
-    $log_panel->appendChild($log_table);
+    $log_panel->appendChild($event_view);
 
     $content[] = $log_panel;
 
-
-
     return $this->buildStandardPageResponse(
       $content,
       array(
-        'title' => 'Log',
+        'title' => 'Daemon Log',
       ));
   }
 

src/applications/daemon/controller/logview/__init__.php

@@ -8,15 +8,14 @@
 
 phutil_require_module('phabricator', 'aphront/response/404');
 phutil_require_module('phabricator', 'applications/daemon/controller/base');
+phutil_require_module('phabricator', 'applications/daemon/view/daemonlogevents');
 phutil_require_module('phabricator', 'infrastructure/daemon/storage/event');
 phutil_require_module('phabricator', 'infrastructure/daemon/storage/log');
-phutil_require_module('phabricator', 'view/control/table');
 phutil_require_module('phabricator', 'view/form/base');
 phutil_require_module('phabricator', 'view/form/control/static');
 phutil_require_module('phabricator', 'view/form/control/textarea');
 phutil_require_module('phabricator', 'view/layout/panel');
 
-phutil_require_module('phutil', 'markup');
 phutil_require_module('phutil', 'utils');
 
 

src/applications/daemon/view/daemonlogevents/PhabricatorDaemonLogEventsView.php

@@ -0,0 +1,83 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class PhabricatorDaemonLogEventsView extends AphrontView {
+
+  private $events;
+  private $combinedLog;
+
+  public function setEvents(array $events) {
+    $this->events = $events;
+  }
+
+  public function setCombinedLog($is_combined) {
+    $this->combinedLog = $is_combined;
+  }
+
+  public function render() {
+    $rows = array();
+
+    foreach ($this->events as $event) {
+      $row = array(
+        phutil_escape_html($event->getLogType()),
+        date('M j, Y', $event->getEpoch()),
+        date('g:i:s A', $event->getEpoch()),
+        str_replace("\n", '<br />', phutil_escape_html($event->getMessage())),
+      );
+
+      if ($this->combinedLog) {
+        array_unshift(
+          $row,
+          phutil_render_tag(
+            'a',
+            array(
+              'href' => '/daemon/log/'.$event->getLogID().'/',
+            ),
+            phutil_escape_html('Daemon '.$event->getLogID())));
+      }
+
+      $rows[] = $row;
+    }
+
+    $classes = array(
+      '',
+      '',
+      'right',
+      'wide wrap',
+    );
+
+    $headers = array(
+      'Type',
+      'Date',
+      'Time',
+      'Message',
+    );
+
+    if ($this->combinedLog) {
+      array_unshift($classes, 'pri');
+      array_unshift($headers, 'Daemon');
+    }
+
+    $log_table = new AphrontTableView($rows);
+    $log_table->setHeaders($headers);
+    $log_table->setColumnClasses($classes);
+
+    return $log_table->render();
+  }
+
+}

src/applications/daemon/view/daemonlogevents/__init__.php

@@ -0,0 +1,15 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'view/base');
+phutil_require_module('phabricator', 'view/control/table');
+
+phutil_require_module('phutil', 'markup');
+
+
+phutil_require_source('PhabricatorDaemonLogEventsView.php');

src/applications/daemon/view/daemonloglist/PhabricatorDaemonLogListView.php

@@ -0,0 +1,113 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class PhabricatorDaemonLogListView extends AphrontView {
+
+  private $daemonLogs;
+
+  public function setDaemonLogs(array $daemon_logs) {
+    $this->daemonLogs = $daemon_logs;
+  }
+
+  public function render() {
+    $rows = array();
+
+    foreach ($this->daemonLogs as $log) {
+      $epoch = $log->getDateCreated();
+
+      if ($log->getHost() == php_uname('n')) {
+
+        // This will probably fail since apache can't signal the process, but
+        // we can check the error code to figure out if the process exists.
+        $is_running = posix_kill($log->getPID(), 0);
+        if (posix_get_last_error() == 1) {
+          // "Operation Not Permitted", indicates that the PID exists. If it
+          // doesn't, we'll get an error 3 ("No such process") instead.
+          $is_running = true;
+        }
+
+        if ($is_running) {
+          $running = phutil_render_tag(
+            'span',
+            array(
+              'style' => 'color: #00cc00',
+              'title' => 'Running',
+            ),
+            '&bull;');
+        } else {
+          $running = phutil_render_tag(
+            'span',
+            array(
+              'style' => 'color: #cc0000',
+              'title' => 'Not running',
+            ),
+            '&bull;');
+        }
+      } else {
+        $running = phutil_render_tag(
+          'span',
+          array(
+            'style' => 'color: #888888',
+            'title' => 'Not on this host',
+          ),
+          '?');
+      }
+
+      $rows[] = array(
+        $running,
+        phutil_escape_html($log->getDaemon()),
+        phutil_escape_html($log->getHost()),
+        $log->getPID(),
+        date('M j, Y', $epoch),
+        date('g:i A', $epoch),
+        phutil_render_tag(
+          'a',
+          array(
+            'href' => '/daemon/log/'.$log->getID().'/',
+            'class' => 'button small grey',
+          ),
+          'View Log'),
+      );
+    }
+
+    $daemon_table = new AphrontTableView($rows);
+    $daemon_table->setHeaders(
+      array(
+        '',
+        'Daemon',
+        'Host',
+        'PID',
+        'Date',
+        'Time',
+        'View',
+      ));
+    $daemon_table->setColumnClasses(
+      array(
+        '',
+        'wide wrap',
+        '',
+        '',
+        '',
+        'right',
+        'action',
+      ));
+
+    return $daemon_table->render();
+  }
+
+}

src/applications/daemon/view/daemonloglist/__init__.php

@@ -0,0 +1,15 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'view/base');
+phutil_require_module('phabricator', 'view/control/table');
+
+phutil_require_module('phutil', 'markup');
+
+
+phutil_require_source('PhabricatorDaemonLogListView.php');

src/applications/files/controller/list/PhabricatorFileListController.php

@@ -30,11 +30,7 @@ class PhabricatorFileListController extends PhabricatorFileController {
       $pager->getOffset(),
       $pager->getPageSize() + 1);
 
-    if (count($files) > $pager->getPageSize()) {
-      $files = array_slice($files, 0, $pager->getPageSize(), true);
-      $pager->setHasMorePages(true);
-    }
-
+    $files = $pager->sliceResults($files);
     $pager->setURI($request->getRequestURI(), 'page');
 
     $rows = array();

src/view/control/pager/AphrontPagerView.php

@@ -80,6 +80,32 @@ final class AphrontPagerView extends AphrontView {
     return $this->count !== null;
   }
 
+  /**
+   * A common paging strategy is to select one extra record and use that to
+   * indicate that there's an additional page (this doesn't give you a
+   * complete page count but is often faster than counting the total number
+   * of items). This method will take a result array, slice it down to the
+   * page size if necessary, and call setHasMorePages() if there are more than
+   * one page of results.
+   *
+   *    $results = queryfx_all(
+   *      $conn,
+   *      'SELECT ... LIMIT %d, %d',
+   *      $pager->getOffset(),
+   *      $pager->getPageSize() + 1);
+   *    $results = $pager->sliceResults($results);
+   *
+   * @param   list  Result array.
+   * @return  list  One page of results.
+   */
+  public function sliceResults(array $results) {
+    if (count($results) > $this->getPageSize()) {
+      $results = array_slice($results, 0, $this->getPageSize(), true);
+      $this->setHasMorePages(true);
+    }
+    return $results;
+  }
+
   public function render() {
     if (!$this->uri) {
       throw new Exception(