function test_incremental_backup()
{
// Do the test here/
$course = get_record('course', 'id', '1');
$course_status = schedule_backup_launch_inc_backup($course, time());
$this->assertTrue($course_status);
}
function schedule_incr_backup_cron()
{
global $CFG;
$status = true;
$emailpending = false;
//Check for required functions...
if (!function_exists('utf8_encode')) {
mtrace(" ERROR: You need to add XML support to your PHP installation!");
return true;
}
//Get now
$now = time();
//First of all, we have to see if the scheduled is active and detect
//that there isn't another cron running
mtrace(" Checking incremental status", '...');
$incremental_config = backup_get_config();
$xdeltapath = $incremental_config->backup_inc_pathtoxdelta;
//check for relative path first.
if (!empty($xdeltapath) && strpos($xdeltapath, '..') !== false) {
//this is a relative path - convert it before using it!
$xdeltapath = realpath($CFG->dataroot . $xdeltapath);
}
if (empty($xdeltapath) or !file_exists($xdeltapath)) {
mtrace(" XDELTA not installed - incrementals cannot run");
return false;
}
if (!isset($incremental_config->backup_sche_incrementals) || !$incremental_config->backup_sche_incrementals) {
mtrace("INACTIVE");
return true;
} else {
if (isset($incremental_config->backup_inc_running) && $incremental_config->backup_inc_running) {
mtrace("RUNNING");
//Now check if it's a really running task or something very old looking
//for info in backup_logs to unlock status as necessary
$timetosee = 1800;
//Half an hour looking for activity
$timeafter = time() - $timetosee;
//TODO DAN - this needs to check the inc log to see if it is still going.
$numofrec = count_records_select("backup_log", "time > {$timeafter} AND type='incrementalbackup'");
if (!$numofrec) {
$timetoseemin = $timetosee / 60;
mtrace(" No activity in last " . $timetoseemin . " minutes. Unlocking status");
} else {
mtrace(" Scheduled backup seems to be running. Execution delayed");
return true;
}
} else {
mtrace("OK");
//Mark backup_inc_running
backup_set_config("backup_inc_running", "1");
}
}
//Now we get the main admin user (we'll use his timezone, mail...)
mtrace(" Getting admin info");
$admin = get_admin();
if (!$admin) {
$status = false;
}
//Now we get a list of courses in the server
if ($status) {
mtrace(" Checking courses");
//now pull courses out of incremental_courses
$bkcourses = get_records('incremental_courses');
//For each course, we check (insert, update) the backup_course table
//with needed data
if (empty($bkcourses)) {
mtrace(" No courses configured for incremental backups");
} else {
foreach ($bkcourses as $backup_course) {
//TODO - this should be tidied up to use a single sql query instead of 1 per course configured!
$course = get_record('course', 'id', $backup_course->courseid);
if ($status) {
mtrace(" {$course->fullname}");
//Now we backup every non skipped course with nextstarttime < now
if ($backup_course->nextstarttime > 0 && $backup_course->nextstarttime < $now) {
//We have to send a email because we have included at least one backup
$emailpending = true;
//Only make the backup if laststatus isn't 2-UNFINISHED (uncontrolled error)
if ($backup_course->laststatus != 2) {
//Set laststarttime
$starttime = time();
set_field("incremental_courses", "laststarttime", $starttime, "courseid", $backup_course->courseid);
//Set course status to unfinished, the process will reset it
set_field("incremental_courses", "laststatus", "2", "courseid", $backup_course->courseid);
//Launch backup
$course_status = schedule_backup_launch_inc_backup($course, $starttime);
//Set lastendtime
set_field("incremental_courses", "lastendtime", time(), "courseid", $backup_course->courseid);
//Set laststatus
if ($course_status) {
set_field("incremental_courses", "laststatus", "1", "courseid", $backup_course->courseid);
} else {
set_field("incremental_courses", "laststatus", "0", "courseid", $backup_course->courseid);
}
}
}
//Now, calculate next execution of the course
$nextstarttime = schedule_inc_backup_next_execution($backup_course, $incremental_config, $now, $admin->timezone);
//Save it to db
set_field("incremental_courses", "nextstarttime", $nextstarttime, "courseid", $backup_course->courseid);
//Print it to screen as necessary
$showtime = "undefined";
if ($nextstarttime > 0) {
$showtime = userdate($nextstarttime, "", $admin->timezone);
}
mtrace(" Next execution: {$showtime}");
}
}
}
}
//Delete old logs
if (!empty($CFG->loglifetime)) {
mtrace(" Deleting old logs");
$loglifetime = $now - $CFG->loglifetime * 86400;
delete_records_select("incremental_log", "laststarttime < '{$loglifetime}'");
}
//Send email to admin if necessary
if ($emailpending) {
mtrace(" Sending email to admin");
$message = "";
//Get info about the status of courses
$count_all = count_records('incremental_courses');
$count_ok = count_records('incremental_courses', 'laststatus', '1');
$count_error = count_records('incremental_courses', 'laststatus', '0');
$count_unfinished = count_records('incremental_courses', 'laststatus', '2');
$count_skipped = count_records('incremental_courses', 'laststatus', '3');
//Build the message text
//Summary
$message .= get_string('summary') . "\n";
$message .= "==================================================\n";
$message .= " " . get_string('courses') . ": " . $count_all . "\n";
$message .= " " . get_string('ok') . ": " . $count_ok . "\n";
$message .= " " . get_string('skipped') . ": " . $count_skipped . "\n";
$message .= " " . get_string('error') . ": " . $count_error . "\n";
$message .= " " . get_string('unfinished') . ": " . $count_unfinished . "\n\n";
//Reference
if ($count_error != 0 || $count_unfinished != 0) {
$message .= " " . get_string('incrementalfailed') . "\n\n";
$dest_url = "{$CFG->wwwroot}/{$CFG->admin}/report/incrementals/index.php";
$message .= " " . get_string('incrementaltakealook', '', $dest_url) . "\n\n";
//Set message priority
$admin->priority = 1;
//Reset unfinished to error
set_field('incremental_courses', 'laststatus', '0', 'laststatus', '2');
} else {
$message .= " " . get_string('incrementalfinished') . "\n";
}
//Build the message subject
$site = get_site();
$prefix = $site->shortname . ": ";
if ($count_error != 0 || $count_unfinished != 0) {
$prefix .= "[" . strtoupper(get_string('error')) . "] ";
}
$subject = $prefix . get_string("incrementalbackupstatus");
//Send the message
email_to_user($admin, $admin, $subject, $message);
}
//Everything is finished stop backup_sche_running
backup_set_config("backup_inc_running", "0");
return $status;
}
while (isset($currenthash->hash) && isset($currenthash->filename) && $currenthash->hash == $currenthash->filename) {
//make sure the record is valid - if both hash and filename are exact - this is related to a client update - not the server backup.
$currenthash = array_pop($incrementals);
//get latest course hash.
}
}
}
if (empty($currenthash)) {
//need to run backup for this course.
// now do other stuff.!!!
$navlinks = array();
$navlinks[] = array('name' => get_string('exportcourse', 'local'), 'link' => '', 'type' => 'activity');
$navigation = build_navigation($navlinks);
print_header_simple(get_string('exportcourse', 'local'), get_string('exportcourse', 'local'), $navigation, "", "", true, '', '');
print_box(get_string('errornobackup', 'local'), 'generalbox', 'intro');
$course_status = schedule_backup_launch_inc_backup($course, time());
if ($course_status) {
redirect("export_incremental.php?id=" . $id);
} else {
error("please run a backup manually for this course");
}
exit;
}
$incremental_config = backup_get_config();
//set directory paths
if (!empty($incremental_config->backup_inc_destination)) {
$backuppath = $incremental_config->backup_inc_destination . '/' . $crnt->courseid . '/';
} else {
$backuppath = $CFG->dataroot . '/' . $course->id . '/backupdata/';
}
if (file_exists($backuppath . $currenthash->filename)) {