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| 1 | <?php |
| 2 | /** |
| 3 | * Sends dump output via the p7zip compressor. |
| 4 | * |
| 5 | * Copyright © 2003, 2005, 2006 Brooke Vibber <bvibber@wikimedia.org> |
| 6 | * https://www.mediawiki.org/ |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 21 | * http://www.gnu.org/copyleft/gpl.html |
| 22 | * |
| 23 | * @file |
| 24 | */ |
| 25 | |
| 26 | use MediaWiki\Shell\Shell; |
| 27 | |
| 28 | /** |
| 29 | * @ingroup Dump |
| 30 | */ |
| 31 | class Dump7ZipOutput extends DumpPipeOutput { |
| 32 | /** |
| 33 | * @var int |
| 34 | */ |
| 35 | protected $compressionLevel; |
| 36 | |
| 37 | /** |
| 38 | * @param string $file |
| 39 | * @param int $cmpLevel Compression level passed to 7za command's -mx |
| 40 | */ |
| 41 | public function __construct( $file, $cmpLevel = 4 ) { |
| 42 | $this->compressionLevel = $cmpLevel; |
| 43 | $command = $this->setup7zCommand( $file ); |
| 44 | parent::__construct( $command ); |
| 45 | $this->filename = $file; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * @param string $file |
| 50 | * @return string |
| 51 | */ |
| 52 | private function setup7zCommand( $file ) { |
| 53 | $command = "7za a -bd -si -mx="; |
| 54 | $command .= Shell::escape( (string)$this->compressionLevel ) . ' '; |
| 55 | $command .= Shell::escape( $file ); |
| 56 | // Suppress annoying useless crap from p7zip |
| 57 | // Unfortunately this could suppress real error messages too |
| 58 | $command .= ' >' . wfGetNull() . ' 2>&1'; |
| 59 | return $command; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * @inheritDoc |
| 64 | */ |
| 65 | public function closeAndRename( $newname, $open = false ) { |
| 66 | $newname = $this->checkRenameArgCount( $newname ); |
| 67 | if ( $newname ) { |
| 68 | fclose( $this->handle ); |
| 69 | proc_close( $this->procOpenResource ); |
| 70 | $this->renameOrException( $newname ); |
| 71 | if ( $open ) { |
| 72 | $command = $this->setup7zCommand( $this->filename ); |
| 73 | $this->startCommand( $command ); |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | } |