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k3b/libk3b/projects/datacd/k3bfileitem.cpp

301 lines
6.7 KiB

/*
*
* $Id: k3bfileitem.cpp 619556 2007-01-03 17:38:12Z trueg $
* Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.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.
* See the file "COPYING" for the exact licensing terms.
*/
#include <config.h>
#include <k3bglobals.h>
#include "k3bfileitem.h"
#include "k3bdatadoc.h"
#include "k3bdiritem.h"
#include "k3bisooptions.h"
#include <k3bglobals.h>
#include <tqfileinfo.h>
#include <tqstring.h>
#include <tqstringlist.h>
#include <tqregexp.h>
#include <tqfile.h>
#include <kurl.h>
#include <kdebug.h>
#include <errno.h>
#include <string.h>
bool operator==( const K3bFileItem::Id& id1, const K3bFileItem::Id& id2 )
{
return ( id1.device == id2.device && id1.inode == id2.inode );
}
bool operator<( const K3bFileItem::Id& id1, const K3bFileItem::Id& id2 )
{
if( id1.device == id2.device )
return ( id1.inode < id2.inode );
else
return ( id1.device < id2.device );
}
bool operator>( const K3bFileItem::Id& id1, const K3bFileItem::Id& id2 )
{
return !( id2 < id1 || id1 == id2 );
}
K3bFileItem::K3bFileItem( const TQString& filePath, K3bDataDoc* doc, K3bDirItem* dir, const TQString& k3bName, int flags )
: K3bDataItem( doc, dir, flags ),
m_replacedItemFromOldSession(0),
m_localPath(filePath)
{
if( k3bName.isEmpty() )
m_k3bName = filePath.section( '/', -1 );
else
m_k3bName = k3bName;
// we determine the size here to avoid problems with removed or renamed files
// we need to use lstat here since for symlinks both TDE and TQt return the size of the file pointed to
// instead the size of the link.
k3b_struct_stat statBuf;
if( k3b_lstat( TQFile::encodeName(filePath), &statBuf ) ) {
m_size = K3b::filesize( filePath );
m_id.inode = 0;
m_id.device = 0;
m_bSymLink = false;
kdError() << "(KFileItem) lstat failed: " << strerror(errno) << endl;
// since we have no proper inode info, disable the inode caching in the doc
if( doc ) {
K3bIsoOptions o( doc->isoOptions() );
o.setDoNotCacheInodes( true );
doc->setIsoOptions( o );
}
}
else {
m_size = (TDEIO::filesize_t)statBuf.st_size;
m_bSymLink = S_ISLNK(statBuf.st_mode);
//
// integrate the device number into the inode since files on different
// devices may have the same inode number!
//
m_id.inode = statBuf.st_ino;
m_id.device = statBuf.st_dev;
}
m_idFollowed = m_id;
m_sizeFollowed = m_size;
if( isSymLink() ) {
k3b_struct_stat statBuf;
if( k3b_stat( TQFile::encodeName(filePath), &statBuf ) == 0 ) {
m_idFollowed.inode = statBuf.st_ino;
m_idFollowed.device = statBuf.st_dev;
m_sizeFollowed = (TDEIO::filesize_t)statBuf.st_size;
}
}
// add automagically like a qlistviewitem
if( parent() )
parent()->addDataItem( this );
}
K3bFileItem::K3bFileItem( const k3b_struct_stat* stat,
const k3b_struct_stat* followedStat,
const TQString& filePath, K3bDataDoc* doc, K3bDirItem* dir, const TQString& k3bName )
: K3bDataItem( doc, dir ),
m_replacedItemFromOldSession(0),
m_localPath(filePath)
{
if( k3bName.isEmpty() )
m_k3bName = filePath.section( '/', -1 );
else
m_k3bName = k3bName;
m_size = (TDEIO::filesize_t)stat->st_size;
m_bSymLink = S_ISLNK(stat->st_mode);
//
// integrate the device number into the inode since files on different
// devices may have the same inode number!
//
m_id.inode = stat->st_ino;
m_id.device = stat->st_dev;
if( isSymLink() ) {
m_idFollowed.inode = followedStat->st_ino;
m_idFollowed.device = followedStat->st_dev;
m_sizeFollowed = (TDEIO::filesize_t)followedStat->st_size;
}
else {
m_idFollowed = m_id;
m_sizeFollowed = m_size;
}
if( parent() )
parent()->addDataItem( this );
}
K3bFileItem::K3bFileItem( const K3bFileItem& item )
: K3bDataItem( item ),
m_replacedItemFromOldSession(0),
m_size( item.m_size ),
m_sizeFollowed( item.m_sizeFollowed ),
m_id( item.m_id ),
m_idFollowed( item.m_idFollowed ),
m_localPath( item.m_localPath ),
m_bSymLink( item.m_bSymLink )
{
}
K3bFileItem::~K3bFileItem()
{
// remove this from parentdir
take();
}
K3bDataItem* K3bFileItem::copy() const
{
return new K3bFileItem( *this );
}
TDEIO::filesize_t K3bFileItem::itemSize( bool followSymlinks ) const
{
if( followSymlinks )
return m_sizeFollowed;
else
return m_size;
}
K3bFileItem::Id K3bFileItem::localId() const
{
return localId( doc() ? doc()->isoOptions().followSymbolicLinks() || !doc()->isoOptions().createRockRidge() : false );
}
K3bFileItem::Id K3bFileItem::localId( bool followSymlinks ) const
{
if( followSymlinks )
return m_idFollowed;
else
return m_id;
}
bool K3bFileItem::exists() const
{
return true;
}
TQString K3bFileItem::absIsoPath()
{
// return m_dir->absIsoPath() + m_isoName;
return TQString();
}
TQString K3bFileItem::localPath() const
{
return m_localPath;
}
K3bDirItem* K3bFileItem::getDirItem() const
{
return getParent();
}
bool K3bFileItem::isSymLink() const
{
return m_bSymLink;
}
TQString K3bFileItem::linkDest() const
{
return TQFileInfo( localPath() ).readLink();
}
bool K3bFileItem::isValid() const
{
if( isSymLink() ) {
// this link is not valid if we cannot follow it if we want to
if( doc()->isoOptions().followSymbolicLinks() ) {
return TQFile::exists( K3b::resolveLink( localPath() ) );
}
TQString dest = linkDest();
if( dest[0] == '/' )
return false; // absolut links can never be part of the compilation!
// parse the link
K3bDirItem* dir = getParent();
TQStringList tokens = TQStringList::split( TQRegExp("/+"), dest ); // two slashes or more do the same as one does!
unsigned int i = 0;
while( i < tokens.size() ) {
if( tokens[i] == "." ) {
// ignore it
}
else if( tokens[i] == ".." ) {
// change the directory
dir = dir->parent();
if( dir == 0 )
return false;
}
else {
// search for the item in dir
K3bDataItem* d = dir->find( tokens[i] );
if( d == 0 )
return false;
if( d->isDir() ) {
// change directory
dir = (K3bDirItem*)d;
}
else {
if( i+1 != tokens.size() )
return false; // if di is a file we need to be at the last token
else
return (dest[dest.length()-1] != '/'); // if the link destination ends with a slash
// it can only point to a directory!
}
}
i++;
}
return true;
}
else
return true;
}