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/***************************************************************************
* Copyright (C) 2005 by Joris Guisson *
* joris.guisson@gmail.com *
* *
* 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. *
***************************************************************************/
#include <tqstringlist.h>
#include <tqfileinfo.h>
#include <util/log.h>
#include <util/fileops.h>
#include <util/functions.h>
#include <torrent/torrent.h>
#include <torrent/globals.h>
#include "cachemigrate.h"
namespace bt
{
bool IsCacheMigrateNeeded(const Torrent & tor,const TQString & cache)
{
// mutli files always need to be migrated
if (tor.isMultiFile())
return true;
// a single file and a symlink do not need to be migrated
TQFileInfo finfo(cache);
if (finfo.isSymLink())
return false;
return true;
}
static void MigrateSingleCache(const Torrent & tor,const TQString & cache,const TQString & output_dir)
{
Out() << "Migrating single cache " << cache << " to " << output_dir << endl;
bt::Move(cache,output_dir + tor.getNameSuggestion());
bt::SymLink(output_dir + tor.getNameSuggestion(),cache);
}
static void MakePath(const TQString & startdir,const TQString & path)
{
TQStringList sl = TQStringList::split(bt::DirSeparator(),path);
// create all necessary subdirs
TQString ctmp = startdir;
for (Uint32 i = 0;i < sl.count() - 1;i++)
{
ctmp += sl[i];
// we need to make the same directory structure in the cache
// as the output dir
if (!bt::Exists(ctmp))
MakeDir(ctmp);
ctmp += bt::DirSeparator();
}
}
static void MigrateMultiCache(const Torrent & tor,const TQString & cache,const TQString & output_dir)
{
Out() << "Migrating multi cache " << cache << " to " << output_dir << endl;
// if the cache dir is a symlink, everything is OK
if (TQFileInfo(cache).isSymLink())
return;
TQString cache_dir = cache;
// make the output dir if it does not exists
if (!bt::Exists(output_dir + tor.getNameSuggestion()))
bt::MakeDir(output_dir + tor.getNameSuggestion());
TQString odir = output_dir + tor.getNameSuggestion() + bt::DirSeparator();
TQString cdir = cache;
if (!cdir.endsWith(bt::DirSeparator()))
cdir += bt::DirSeparator();
// loop over all files in the cache and see if they are symlinks
for (Uint32 i = 0;i < tor.getNumFiles();i++)
{
const TorrentFile & tf = tor.getFile(i);
TQFileInfo fi(cdir + tf.getPath());
// symlinks are OK
if (fi.isSymLink())
continue;
// make the path if necessary
MakePath(odir,tf.getPath());
// no symlink so move to output_dir
bt::Move(cdir + tf.getPath(),odir + tf.getPath());
bt::SymLink(odir + tf.getPath(),cdir + tf.getPath());
}
}
void MigrateCache(const Torrent & tor,const TQString & cache,const TQString & output_dir)
{
TQString odir = output_dir;
if (!odir.endsWith(bt::DirSeparator()))
odir += bt::DirSeparator();
if (!tor.isMultiFile())
MigrateSingleCache(tor,cache,odir);
else
MigrateMultiCache(tor,cache,odir);
}
}
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