MDL-32443 qeupgradehelper: Add cli tool to execute qeupgrade helper

admin/tool/qeupgradehelper/README.txt

@@ -5,7 +5,7 @@ With a lot of question attempts, doing the whole conversion on upgrade is very
 slow. The plugin can help with that in various ways.
 
 
-1. It provies a report of how much data there is to upgrade.
+1. It provides a report of how much data there is to upgrade.
 
 2. It can extract test-cases from the database. This can help you report bugs
 in the upgrade process to the developers.
@@ -35,3 +35,9 @@ subsequently been modified) so you can re-upgrade them. This may allow you to
 recover from a buggy upgrade.
 
 9. Finally, you can still use the extract test-cases script to help report bugs.
+
+
+Manual upgrades can be processed via the web interface or the command line tool
+cliupgrade.php. To run cliupgrade.php, use a command similar to:
+sudo -u www-data /usr/bin/php admin/tool/qeupgradehelper/cli/convert.php -h
+The -h flag will show the options for running the tool.
\ No newline at end of file

admin/tool/qeupgradehelper/cli/convert.php

+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Script to allow upgrading of quizzes with attempts that were previously
+ * skipped.
+ *
+ * @package    tool_qeupgradehelper
+ * @copyright  2012 Eric Merrill, Oakland Unversity
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+define('CLI_SCRIPT', true);
+
+require_once(dirname(dirname(dirname(dirname(dirname(__FILE__))))) . '/config.php');
+require_once(dirname(dirname(__FILE__)) . '/locallib.php');
+require_once(dirname(dirname(__FILE__)) . '/lib.php');
+require_once($CFG->libdir.'/clilib.php');      // CLI only functions.
+
+
+// Now get cli options.
+list($options, $unrecognized) = cli_get_params(array('quiz'=>false, 'timelimit'=>false, 'countlimit'=>false, 'help'=>false),
+                                               array('c'=>'countlimit', 't'=>'timelimit', 'h'=>'help'));
+
+if ($unrecognized) {
+    $unrecognized = implode("\n  ", $unrecognized);
+    cli_error(get_string('cliunknowoption', 'admin', $unrecognized));
+}
+
+
+if ($options['help']) {
+    $help =
+"Question engine upgrade helper CLI tool.
+Will upgrade all remaining question attempts if no options are specified.
+
+Options:
+-c, --countlimit=<n>    Process n number of quizzes then exit
+-t, --timelimit=<n>     Process quizzes for n number of seconds, then exit. A quiz
+                        currently in progress will not be interrupted.
+--quiz=<quizid>         Process quiz quizid only
+-h, --help              Print out this help
+
+countlimit and timelimit can be used together. First one to trigger will stop execution.
+
+Example:
+\$sudo -u www-data /usr/bin/php admin/tool/qeupgradehelper/cliupgrade.php
+";
+
+    echo $help;
+    die;
+}
+
+
+
+
+if (!tool_qeupgradehelper_is_upgraded()) {
+    mtrace('qeupgradehelper: site not yet upgraded. Doing nothing.');
+    return;
+}
+
+require_once(dirname(__FILE__) . '/afterupgradelib.php');
+
+
+$starttime = time();
+
+// Setup the stop time.
+if ($options['timelimit']) {
+    $stoptime = time() + $options['timelimit'];
+} else {
+    $stoptime = false;
+}
+
+// If we are doing a quiz id, limit to one.
+if ($options['quiz']) {
+    $options['countlimit'] = 1;
+}
+
+$count = 0;
+
+
+mtrace('qeupgradehelper: processing ...');
+
+/* This while statement does a few things
+ * Basically if an option is set to false, then that subsection will return
+ * true, and will short circuit the test condition for that option, and always
+ * being true. Both options are anded together, so either one can trigger to stop.
+ */
+while ((!$stoptime || (time() < $stoptime)) && (!$options['countlimit'] || ($count < $options['countlimit']))) {
+    if ($options['quiz']) {
+        $quizid = $options['quiz'];
+    } else {
+        $quiz = tool_qeupgradehelper_get_quiz_for_upgrade();
+        if (!$quiz) {
+            mtrace('qeupgradehelper: No more quizzes to process.');
+            break; // No more to do.
+        }
+        
+        $quizid = $quiz->id;
+    }
+    $quizsummary = tool_qeupgradehelper_get_quiz($quizid);
+    if ($quizsummary) {
+        mtrace('  starting upgrade of attempts at quiz ' . $quizid);
+        $upgrader = new tool_qeupgradehelper_attempt_upgrader(
+                $quizsummary->id, $quizsummary->numtoconvert);
+        $upgrader->convert_all_quiz_attempts();
+        mtrace('  upgrade of quiz ' . $quizid . ' complete.');
+    } else {
+        mtrace('quiz ' . $quizid . ' not found or already upgraded.');
+    }
+    
+    $count++;
+}
+
+
+mtrace('qeupgradehelper: Done. Processed '.$count.' quizes in '.(time()-$starttime).' seconds');
+return;