protected function uploadStatic() {
		// copy to all destination folders
		foreach($this->remoteStatic as $type => $destDir) {			
			// copy from all static
			if(isset($this->s3)) {
				foreach(self::rglob($this->tmp[ $type ] . '*') as $file) {
					$info = new \SplFileInfo($file);
					
					if($info->isDir() || !$info->isReadable())
						continue;
					
					$this->start('Putting '. $info->getBasename() .' on '. $destDir);
					
					// get mime
					$mime = 'text/plain'; // 'application/octet-stream';
					if(isset(static::$mimes[ $info->getExtension() ]))
						$mime = static::$mimes[ $info->getExtension() ];
					
					// headers
					$headers = [
						'Content-Type'		=> $mime,
						'Cache-Control'		=> 'max-age=315360000',
						'Expires'			=> 'Thu, 31 Dec 2037 23:55:55 GMT', //gmdate(DateTime::RFC1123, strtotime('+5 years'))
						'Vary'				=> 'Accept-Encoding',
					];
					
					$data = file_get_contents($file);
						
					// gzip
					if(substr($mime, 0, 5) === 'text/'
					|| $mime === 'application/javascript'
					|| $mime === 'application/x-javascript'
					|| $mime === 'application/json') {
						$data = gzencode($data, 9);
						$headers['Content-Encoding'] = 'gzip';
					}
					
					// data length
					$headers['Content-Length'] = mb_strlen($data, '8bit');
					
					// push it
					$this->s3->putObject(
						$data,
						$destDir,
						$info->getBasename(),
						\S3::ACL_PUBLIC_READ,
						array(),
						$headers
					);

					$this->finish();
				}
			} else {
				$this	->start('Local object '. $type .' -> '. $destDir)
//						->runRemote('rm -r '. $destDir .'; mkdir -p '. $destDir)
						->runLocal(['pscp',
							'-p',									// preserve attributes
							'-r',									// copy recursively
							'-q',									// silent
							//'-sftp',								// for use of SFTP protocal
							'-batch',								// non interactive
							'-C',									// enable compression
							'-i', static::safeDir($this->ppk),		// Private key file to access server
							static::safeDir($this->tmp[ $type ]),	// Directory to upload
							$this->host .':'. $destDir,	// host:path on server to save data
						])->finish();
			}
		}
		
		return $this;
	}