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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 | * @license GPL-2.0-or-later |
| 9 | * @file |
| 10 | */ |
| 11 | |
| 12 | namespace MediaWiki\Export; |
| 13 | |
| 14 | use MediaWiki\Shell\Shell; |
| 15 | |
| 16 | /** |
| 17 | * @ingroup Dump |
| 18 | */ |
| 19 | class Dump7ZipOutput extends DumpPipeOutput { |
| 20 | /** |
| 21 | * @var int |
| 22 | */ |
| 23 | protected $compressionLevel; |
| 24 | |
| 25 | /** |
| 26 | * @param string $file |
| 27 | * @param int $cmpLevel Compression level passed to 7za command's -mx |
| 28 | */ |
| 29 | public function __construct( $file, $cmpLevel = 4 ) { |
| 30 | $this->compressionLevel = $cmpLevel; |
| 31 | $command = $this->setup7zCommand( $file ); |
| 32 | parent::__construct( $command ); |
| 33 | $this->filename = $file; |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * @param string $file |
| 38 | * @return string |
| 39 | */ |
| 40 | private function setup7zCommand( $file ) { |
| 41 | $command = "7za a -bd -si -mx="; |
| 42 | $command .= Shell::escape( (string)$this->compressionLevel ) . ' '; |
| 43 | $command .= Shell::escape( $file ); |
| 44 | // Suppress annoying useless crap from p7zip |
| 45 | // Unfortunately this could suppress real error messages too |
| 46 | $command .= ' >' . wfGetNull() . ' 2>&1'; |
| 47 | return $command; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * @inheritDoc |
| 52 | */ |
| 53 | public function closeAndRename( $newname, $open = false ) { |
| 54 | $newname = $this->checkRenameArgCount( $newname ); |
| 55 | if ( $newname ) { |
| 56 | fclose( $this->handle ); |
| 57 | proc_close( $this->procOpenResource ); |
| 58 | $this->renameOrException( $newname ); |
| 59 | if ( $open ) { |
| 60 | $command = $this->setup7zCommand( $this->filename ); |
| 61 | $this->startCommand( $command ); |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | /** @deprecated class alias since 1.46 */ |
| 68 | class_alias( Dump7ZipOutput::class, 'Dump7ZipOutput' ); |