1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/***************************************************************************
* 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 <qstringlist.h>
#include <qfileinfo.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 QString & 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
QFileInfo finfo(cache);
if (finfo.isSymLink())
return false;
return true;
}
static void MigrateSingleCache(const Torrent & tor,const QString & cache,const QString & 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 QString & startdir,const QString & path)
{
QStringList sl = QStringList::split(bt::DirSeparator(),path);
// create all necessary subdirs
QString 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 QString & cache,const QString & output_dir)
{
Out() << "Migrating multi cache " << cache << " to " << output_dir << endl;
// if the cache dir is a symlink, everything is OK
if (QFileInfo(cache).isSymLink())
return;
QString 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());
QString odir = output_dir + tor.getNameSuggestion() + bt::DirSeparator();
QString 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);
QFileInfo 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 QString & cache,const QString & output_dir)
{
QString odir = output_dir;
if (!odir.endsWith(bt::DirSeparator()))
odir += bt::DirSeparator();
if (!tor.isMultiFile())
MigrateSingleCache(tor,cache,odir);
else
MigrateMultiCache(tor,cache,odir);
}
}
|
