MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / export / Dump7ZipOutput.php

diff --git a/includes/export/Dump7ZipOutput.php b/includes/export/Dump7ZipOutput.php
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+<?php
+/**
+ * Sends dump output via the p7zip compressor.
+ *
+ * Copyright © 2003, 2005, 2006 Brion Vibber <brion@pobox.com>
+ * https://www.mediawiki.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+/**
+ * @ingroup Dump
+ */
+class Dump7ZipOutput extends DumpPipeOutput {
+       /**
+        * @var int
+        */
+       protected $compressionLevel;
+
+       /**
+        * @param string $file
+        * @param int $cmpLevel Compression level passed to 7za command's -mx
+        */
+       function __construct( $file, $cmpLevel = 4 ) {
+               $this->compressionLevel = $cmpLevel;
+               $command = $this->setup7zCommand( $file );
+               parent::__construct( $command );
+               $this->filename = $file;
+       }
+
+       /**
+        * @param string $file
+        * @return string
+        */
+       function setup7zCommand( $file ) {
+               $command = "7za a -bd -si -mx=";
+               $command .= wfEscapeShellArg( $this->compressionLevel ) . ' ';
+               $command .= wfEscapeShellArg( $file );
+               // Suppress annoying useless crap from p7zip
+               // Unfortunately this could suppress real error messages too
+               $command .= ' >' . wfGetNull() . ' 2>&1';
+               return $command;
+       }
+
+       /**
+        * @param string $newname
+        * @param bool $open
+        */
+       function closeAndRename( $newname, $open = false ) {
+               $newname = $this->checkRenameArgCount( $newname );
+               if ( $newname ) {
+                       fclose( $this->handle );
+                       proc_close( $this->procOpenResource );
+                       $this->renameOrException( $newname );
+                       if ( $open ) {
+                               $command = $this->setup7zCommand( $this->filename );
+                               $this->startCommand( $command );
+                       }
+               }
+       }
+}