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121 lines
4.1 KiB
121 lines
4.1 KiB
15 years ago
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/***************************************************************************
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* Copyright (C) 2005 by Joris Guisson *
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* joris.guisson@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include <qstringlist.h>
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#include <qfileinfo.h>
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#include <util/log.h>
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#include <util/fileops.h>
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#include <util/functions.h>
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#include <torrent/torrent.h>
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#include <torrent/globals.h>
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#include "cachemigrate.h"
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namespace bt
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{
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bool IsCacheMigrateNeeded(const Torrent & tor,const QString & cache)
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{
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// mutli files always need to be migrated
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if (tor.isMultiFile())
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return true;
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// a single file and a symlink do not need to be migrated
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QFileInfo finfo(cache);
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if (finfo.isSymLink())
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return false;
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return true;
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}
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static void MigrateSingleCache(const Torrent & tor,const QString & cache,const QString & output_dir)
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{
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Out() << "Migrating single cache " << cache << " to " << output_dir << endl;
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bt::Move(cache,output_dir + tor.getNameSuggestion());
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bt::SymLink(output_dir + tor.getNameSuggestion(),cache);
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}
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static void MakePath(const QString & startdir,const QString & path)
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{
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QStringList sl = QStringList::split(bt::DirSeparator(),path);
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// create all necessary subdirs
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QString ctmp = startdir;
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for (Uint32 i = 0;i < sl.count() - 1;i++)
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{
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ctmp += sl[i];
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// we need to make the same directory structure in the cache
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// as the output dir
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if (!bt::Exists(ctmp))
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MakeDir(ctmp);
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ctmp += bt::DirSeparator();
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}
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}
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static void MigrateMultiCache(const Torrent & tor,const QString & cache,const QString & output_dir)
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{
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Out() << "Migrating multi cache " << cache << " to " << output_dir << endl;
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// if the cache dir is a symlink, everything is OK
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if (QFileInfo(cache).isSymLink())
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return;
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QString cache_dir = cache;
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// make the output dir if it does not exists
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if (!bt::Exists(output_dir + tor.getNameSuggestion()))
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bt::MakeDir(output_dir + tor.getNameSuggestion());
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QString odir = output_dir + tor.getNameSuggestion() + bt::DirSeparator();
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QString cdir = cache;
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if (!cdir.endsWith(bt::DirSeparator()))
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cdir += bt::DirSeparator();
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// loop over all files in the cache and see if they are symlinks
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for (Uint32 i = 0;i < tor.getNumFiles();i++)
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{
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const TorrentFile & tf = tor.getFile(i);
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QFileInfo fi(cdir + tf.getPath());
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// symlinks are OK
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if (fi.isSymLink())
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continue;
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// make the path if necessary
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MakePath(odir,tf.getPath());
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// no symlink so move to output_dir
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bt::Move(cdir + tf.getPath(),odir + tf.getPath());
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bt::SymLink(odir + tf.getPath(),cdir + tf.getPath());
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}
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}
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void MigrateCache(const Torrent & tor,const QString & cache,const QString & output_dir)
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{
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QString odir = output_dir;
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if (!odir.endsWith(bt::DirSeparator()))
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odir += bt::DirSeparator();
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if (!tor.isMultiFile())
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MigrateSingleCache(tor,cache,odir);
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else
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MigrateMultiCache(tor,cache,odir);
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}
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}
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