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update files history according the given intervals

This commit is contained in:
Björn Schießle 2012-12-17 13:28:40 +01:00
parent ee1ce6714b
commit 0a49fcf9d1
1 changed files with 49 additions and 31 deletions
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80
apps/files_versions/lib/versions.php
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@ -32,8 +32,15 @@ class Storage {
const DEFAULTENABLED=true;
const DEFAULTBLACKLIST='avi mp3 mpg mp4 ctmp';
const DEFAULTMAXFILESIZE=10485760; // 10MB
const DEFAULTMININTERVAL=1; // 1 min
const DEFAULTMAXVERSIONS=50;
var $MAX_VERSIONS_PER_INTERVAL = array(1 => array('intervalEndsAfter' => 3600, //first hour, one version every 10sec
'step' => 10),
2 => array('intervalEndsAfter' => 86400, //next 24h, one version every hour
'step' => 3600),
3 => array('intervalEndsAfter' => -1, //until the end one version per day
'step' => 86400),
);
private static function getUidAndFilename($filename)
{
@ -100,7 +107,7 @@ class Storage {
$matches=glob($versionsName.'.v*');
sort($matches);
$parts=explode('.v', end($matches));
if((end($parts)+Storage::DEFAULTMININTERVAL)>time()) {
if((end($parts)+Storage::$MAX_VERSIONS_PER_INTERVAL[1]['step'])>time()) {
return false;
}
}
@ -248,45 +255,56 @@ class Storage {
if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
list($uid, $filename) = self::getUidAndFilename($filename);
$versions_fileview = new \OC_FilesystemView('/'.$uid.'/files_versions');
// get available disk space for user
$quota = \OCP\Util::computerFileSize(\OC_Preferences::getValue($uid, 'files', 'quota'));
if ( $quota == null ) {
$quota = \OCP\Util::computerFileSize(\OC_Appconfig::getValue('files', 'default_quota'));
} else if ( $quota == null ) {
}
if ( $quota == null ) {
$quota = \OC_Filesystem::free_space('/');
}
$rootInfo = \OC_FileCache::get('', '/'. $uid . '/files');
$free = $quota-$rootInfo['size'];
$free = $quota-$rootInfo['size']; // remaining free space for user
if ( $free > 0 ) {
$availableSpace = 5000 / ($quota-$rootInfo['size']); // 50% of free space can be used for versions
} else {
$availableSpace = 0;
}
} // otherwise available space negative and we need to reach at least 0 at the end of the expiration process;
$versions = Storage::getVersions($filename);
foreach ( $versions as $v ) error_log("version: " . $v['version'] . " - size: " . $v['size']);
//day interval
//week interval
//month interval
//delete oldest
if( count( $matches ) > \OCP\Config::getSystemValue( 'files_versionmaxversions', Storage::DEFAULTMAXVERSIONS ) ) {
$numberToDelete = count($matches) - \OCP\Config::getSystemValue( 'files_versionmaxversions', Storage::DEFAULTMAXVERSIONS );
// delete old versions of a file
$deleteItems = array_slice( $matches, 0, $numberToDelete );
foreach( $deleteItems as $de ) {
unlink( $versionsName.'.v'.$de );
$versions = Storage::getVersions($filename);
$versions = array_reverse($versions); // newest version first
$time = time();
$numOfVersions = count($versions);
$interval = 1;
$step = Storage::$MAX_VERSIONS_PER_INTERVAL[$interval]['step'];
if (Storage::$MAX_VERSIONS_PER_INTERVAL[$interval]['intervalEndsAfter'] == -1) {
$nextInterval = -1;
} else {
$nextInterval = $time - Storage::$MAX_VERSIONS_PER_INTERVAL[$interval]['intervalEndsAfter'];
}
$nextVersion = $versions[0]['versions'] - $step;
for ($i=1; $i<$numOfVersions; $i++) {
if ( $nextInterval == -1 || $versions[$i]['version'] >= $nextInterval ) {
if ( $versions[$i]['version'] > $nextVersion ) {
//distance between two version to small, delete version (TODO)
$availableSpace += $versions[$i]['size'];
} else {
$nextVersion = $versions[$i]['version'] - $step;
}
} else { // time to move on to the next interval
$interval++;
$step = Storage::$MAX_VERSIONS_PER_INTERVAL[$interval]['step'];
$nextVersion = $version[$i]['version'] - $step;
if ( Storage::$MAX_VERSIONS_PER_INTERVAL[$interval]['intervalEndsAfter'] == -1 ) {
$nextInterval = -1;
} else {
$nextInterval = $time - Storage::$MAX_VERSIONS_PER_INTERVAL[$interval]['intervalEndsAfter'];
}
}
}
}