/**
* Register data to be cached at end of request/response-session
*
* @param string
* @param mixed
* @return void
*/
public static function scheduleCacheWrite($k, &$v)
{
if (!self::$hasSchCacheTrig) {
register_shutdown_function(array('SVN', 'finalize'));
self::$hasSchCacheTrig = true;
}
self::$scheduledCacheWrites[$k] =& $v;
}
function canCheckout()
{
$errors = array();
if (!SVN::available()) {
$errors[] = "Subversion is not available.";
}
return $errors;
}
/**
* Read data from file
*
* @param int Specific revision. 0 = youngest
* @param bool Disable memory-based cache
* @return string contents
* @throws IOException
*/
public function getContents($revision = 0, $noCache = false)
{
if (!$this->rep) {
return null;
}
if (SVN::$apcEnabled && !$noCache) {
$cKey = $this->rep->getCacheKey($this->getPath() . '-CONTENTS', $this->getRevision());
# try load cache
if (($dat = apc_fetch($cKey)) !== false) {
#print 'cache hit';
return $dat;
}
# load data
$dat = $this->rep->look('cat', $this->getPath(), $revision ? "-r {$revision}" : '');
# schedule cache write
SVN::scheduleCacheWrite($cKey, $dat);
return $dat;
} else {
return $this->rep->look('cat', $this->getPath(), $revision ? "-r {$revision}" : '');
}
}
/**
* Get all files and directories in a directory for one level down
*
* The results of this method is cached using APC in memory.
*
* @param string
* @param int Show files for a specific revision. 0 = newest revision
* @param bool
* @return SVNDirectory Returns null if the directory specified does not exist
*/
public function getFiles($path = '/', $revision = 0, $noCache = false)
{
$path = rtrim($path, '/') . '/';
# Load mem cached data
if (SVN::$apcEnabled && !$noCache) {
$apcKey = $this->getCacheKey($path, $revision);
if (($root = apc_fetch($apcKey)) !== false) {
#print 'cache hit';
return $root;
}
}
# Query
$tree = trim(SVN::look("tree --full-paths --show-ids" . ($revision ? " -r {$revision}" : '') . " '" . $this->path . "' '{$path}'" . '|' . SVN::grepBin() . " -E '^" . str_replace(array('?', '+'), array('\\?', '\\+'), $path) . "[^/]+/? *<'"));
if (!$tree) {
return null;
}
# Generate data
$tree = explode("\n", $tree);
$len = count($tree);
$root = null;
for ($i = 0; $i < $len; $i++) {
$rev = 0;
$inode = 0;
$line = self::parseTreeFileInfo($tree[$i], $rev, $inode);
if (!$root) {
$root = SVNDirectory::fromData($line, $rev, $inode, $this);
} elseif (substr($line, -1) == '/') {
$root->appendChild(SVNDirectory::fromData($line, $rev, $inode));
} else {
$root->appendChild(SVNFile::fromData($line, $rev, $inode));
}
}
# Save cache at request/response-session end
if (SVN::$apcEnabled && !$noCache) {
SVN::scheduleCacheWrite($apcKey, $root);
}
return $root;
}
