| -rw-r--r-- | library/filemanager.cpp | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/library/filemanager.cpp b/library/filemanager.cpp index 2e5efdd..fbfa1d9 100644 --- a/library/filemanager.cpp +++ b/library/filemanager.cpp @@ -1,327 +1,329 @@ /********************************************************************** ** Copyright (C) 2000 Trolltech AS. All rights reserved. ** ** This file is part of Qtopia Environment. ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 2 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #include "filemanager.h" #include "applnk.h" /* QT */ #include <qdir.h> #include <qfileinfo.h> #include <qtextstream.h> /* STD */ #include <stdlib.h> #include <errno.h> #include <sys/stat.h> /*! \class FileManager \brief The FileManager class assists with AppLnk input/output. */ /*! Constructs a FileManager. */ FileManager::FileManager() { } /*! Destroys a FileManager. */ FileManager::~FileManager() { } /*! Saves \a data as the document specified by \a f. Returns whether the operation succeeded. */ bool FileManager::saveFile( const DocLnk &f, const QByteArray &data ) { QString fileName = f.file() + ".new"; ensurePathExists( fileName ); QFile file( fileName ); //write data in temporary .new file if ( !file.open( IO_WriteOnly|IO_Raw ) ) { qWarning( "open failed" ); return FALSE; } int total_written = file.writeBlock( data ); file.close(); //check if every was written if ( total_written != int( data.size() ) || !f.writeLink() ) { QFile::remove( fileName ); return FALSE; } qDebug( "total written %d out of %d", total_written, data.size() ); //rename temporary .new file in original filenam if ( !renameFile( fileName, f.file() ) ) QFile::remove( fileName); return TRUE; } /*! Saves \a text as the document specified by \a f. The text is saved in UTF8 format. Returns whether the operation succeeded. */ bool FileManager::saveFile( const DocLnk &f, const QString &text ) { QString fileName = f.file() + ".new"; ensurePathExists( fileName ); QFile file( fileName ); //write data in temporary .new file if ( !file.open( IO_WriteOnly|IO_Raw ) ) { qWarning( "open failed" ); return FALSE; } QCString cstr = text.utf8(); int total_written; total_written = file.writeBlock( cstr.data(), cstr.length() ); file.close(); if ( total_written != int( cstr.length()) || !f.writeLink() ) { QFile::remove( fileName ); return FALSE; } // okay now rename the file.. if ( !renameFile( fileName, f.file() ) ) QFile::remove( fileName); return TRUE; } /*! Loads \a text from the document specified by \a f. The text is required to be in UTF8 format. Returns whether the operation succeeded. */ bool FileManager::loadFile( const DocLnk &f, QString &text ) { QString fn = f.file(); QFile fl( fn ); if ( !fl.open( IO_ReadOnly ) ) return FALSE; QTextStream ts( &fl ); #if QT_VERSION <= 230 && defined(QT_NO_CODECS) // The below should work, but doesn't in Qt 2.3.0 ts.setCodec( QTextCodec::codecForMib( 106 ) ); #else ts.setEncoding( QTextStream::UnicodeUTF8 ); #endif text = ts.read(); fl.close(); return TRUE; } /*! Loads \a ba from the document specified by \a f. Returns whether the operation succeeded. */ bool FileManager::loadFile( const DocLnk &f, QByteArray &ba ) { QString fn = f.file(); QFile fl( fn ); if ( !fl.open( IO_ReadOnly ) ) return FALSE; ba.resize( fl.size() ); if ( fl.size() > 0 ) fl.readBlock( ba.data(), fl.size() ); fl.close(); return TRUE; } /*! Copies the document specified by \a src to the document specified by \a dest. Returns whether the operation succeeded. */ bool FileManager::copyFile( const AppLnk &src, const AppLnk &dest ) { QFile srcFile( src.file() ); if ( !srcFile.open( IO_ReadOnly ) ) return FALSE; QString fileName = dest.file() + ".new"; ensurePathExists( fileName ); bool ok = TRUE; ok = copyFile( src.file(), fileName ); if ( ok ) ok = dest.writeLink(); if ( ok ) { // okay now rename the file... if ( !renameFile( fileName, dest.file() ) ) // remove the tmp file, otherwise, it will just lay around... QFile::remove( fileName ); } else { QFile::remove( fileName ); } return ok; } bool FileManager::copyFile( const QString & src, const QString & dest ) { //open read file QFile srcFile( src ); if( !srcFile.open( IO_ReadOnly|IO_Raw) ) { qWarning( "open read failed %s, %s", src.latin1(), dest.latin1() ); return FALSE; } //open write file QFile destFile( dest ); if( !destFile.open( IO_WriteOnly|IO_Raw ) ) { qWarning( "open write failed %s, %s", src.latin1(), dest.latin1() ); srcFile.close(); return FALSE; } //copy content const int bufsize = 16384; char buffer[bufsize]; bool ok = TRUE; int bytesRead = 0; while ( ok && !srcFile.atEnd() ) { bytesRead = srcFile.readBlock( buffer, bufsize ); if ( bytesRead < 0 ) ok = FALSE; while ( ok && bytesRead > 0 ) { int bytesWritten = destFile.writeBlock( buffer, bytesRead ); if ( bytesWritten < 0 ) ok = FALSE; else bytesRead -= bytesWritten; } } srcFile.close(); destFile.close(); // Set file permissions struct stat status; if( stat( QFile::encodeName( src ), &status ) == 0 ) { chmod( QFile::encodeName( dest ), status.st_mode ); } return ok; } bool FileManager::renameFile( const QString & src, const QString & dest ) { if( rename( QFile::encodeName( src ), QFile::encodeName( dest ) ) == -1); { + if ( errno != 2 && errno != 11 ) //ignore ENOENT and EAGAIN - bug in system? + { qWarning( "problem renaming file %s to %s, errno: %d", src.latin1(), dest.latin1(), errno ); return false; } + } return true; } /*! Opens the document specified by \a f as a readable QIODevice. The caller must delete the return value. Returns 0 if the operation fails. */ QIODevice* FileManager::openFile( const DocLnk& f ) { QString fn = f.file(); QFile* fl = new QFile( fn ); if ( !fl->open( IO_ReadOnly ) ) { delete fl; fl = 0; } return fl; } /*! Opens the document specified by \a f as a writable QIODevice. The caller must delete the return value. Returns 0 if the operation fails. */ QIODevice* FileManager::saveFile( const DocLnk& f ) { QString fn = f.file(); ensurePathExists( fn ); QFile* fl = new QFile( fn ); if ( fl->open( IO_WriteOnly ) ) { f.writeLink(); } else { delete fl; fl = 0; } return fl; } /*! Returns whether the document specified by \a f current exists as a file on disk. */ bool FileManager::exists( const DocLnk &f ) { return QFile::exists(f.file()); } /*! - Ensures that the path \a fn exists, by creating required directories. + Ensures that the path \a fileName exists, by creating required directories. Returns TRUE if successful. */ -bool FileManager::ensurePathExists( const QString &fn ) +bool FileManager::ensurePathExists( const QString &fileName ) { - QFileInfo fi(fn); - fi.setFile( fi.dirPath(TRUE) ); - if ( !fi.exists() ) + QDir directory = QFileInfo( fileName ).dir(); + if ( !directory.exists() ) { - if ( system( ("mkdir -p " + QFile::encodeName( fi.filePath() ) ) ) ) + if ( !directory.mkdir( directory.absPath() ) ) return FALSE; } return TRUE; } |