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Code Issues Releases Wiki Activity

Do not crash when the collection folders contains cycles (symlinks).

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Example: /my/collection/subfolder/link -> /my/collection
Use canonicalFilePath to detect cycles and also check m_newdirtimes for an existing timestamp before recursing into subfolders.
This commit is contained in:
Frank Osterfeld
2011-04-13 04:51:49 +08:00
committed by Christian Muehlhaeuser
parent 04d30913f9
commit 9af6ff7911
2 changed files with 21 additions and 18 deletions
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37
src/musicscanner.cpp
View File

@@ -65,7 +65,7 @@ DirLister::go()
void
DirLister::scanDir( QDir dir, int depth, DirLister::Mode mode )
{
qDebug() << "DirLister::scanDir scanning: " << dir.absolutePath() << " with mode " << mode;
qDebug() << "DirLister::scanDir scanning: " << dir.canonicalPath() << " with mode " << mode;
if( !dir.exists() )
{
@@ -74,16 +74,16 @@ DirLister::scanDir( QDir dir, int depth, DirLister::Mode mode )
}
QFileInfoList dirs;
const uint mtime = QFileInfo( dir.absolutePath() ).lastModified().toUTC().toTime_t();
m_newdirmtimes.insert( dir.absolutePath(), mtime );
const uint mtime = QFileInfo( dir.canonicalPath() ).lastModified().toUTC().toTime_t();
m_newdirmtimes.insert( dir.canonicalPath(), mtime );
if ( m_dirmtimes.contains( dir.absolutePath() ) && mtime == m_dirmtimes.value( dir.absolutePath() ) )
if ( m_dirmtimes.contains( dir.canonicalPath() ) && mtime == m_dirmtimes.value( dir.canonicalPath() ) )
{
// dont scan this dir, unchanged since last time.
}
else
{
if( m_dirmtimes.contains( dir.absolutePath() ) || !m_recursive )
if( m_dirmtimes.contains( dir.canonicalPath() ) || !m_recursive )
Database::instance()->enqueue( QSharedPointer<DatabaseCommand>( new DatabaseCommand_DeleteFiles( dir, SourceList::instance()->getLocal() ) ) );
dir.setFilter( QDir::Files | QDir::Readable | QDir::NoDotAndDotDot );
@@ -99,10 +99,13 @@ DirLister::scanDir( QDir dir, int depth, DirLister::Mode mode )
foreach( const QFileInfo& di, dirs )
{
qDebug() << "Considering dir " << di.absoluteFilePath();
qDebug() << "m_dirmtimes contains it? " << (m_dirmtimes.contains( di.absoluteFilePath() ) ? "true" : "false");
if( mode == DirLister::Recursive || !m_dirmtimes.contains( di.absoluteFilePath() ) )
scanDir( di.absoluteFilePath(), depth + 1, DirLister::Recursive );
const QString canonical = di.canonicalFilePath();
qDebug() << "Considering dir " << canonical;
const bool haveDi = m_dirmtimes.contains( canonical );
qDebug() << "m_dirmtimes contains it?" << haveDi;
if( !m_newdirmtimes.contains( canonical ) && ( mode == DirLister::Recursive || !haveDi ) ) {
scanDir( di.canonicalFilePath(), depth + 1, DirLister::Recursive );
}
}
}
@@ -317,20 +320,20 @@ MusicScanner::readFile( const QFileInfo& fi )
if( m_scanned % 3 == 0 )
SourceList::instance()->getLocal()->scanningProgress( m_scanned );
if( m_scanned % 100 == 0 )
qDebug() << "SCAN" << m_scanned << fi.absoluteFilePath();
qDebug() << "SCAN" << m_scanned << fi.canonicalFilePath();
#ifdef COMPLEX_TAGLIB_FILENAME
const wchar_t *encodedName = reinterpret_cast< const wchar_t * >( fi.absoluteFilePath().utf16() );
const wchar_t *encodedName = reinterpret_cast< const wchar_t * >( fi.canonicalFilePath().utf16() );
#else
QByteArray fileName = QFile::encodeName( fi.absoluteFilePath() );
QByteArray fileName = QFile::encodeName( fi.canonicalFilePath() );
const char *encodedName = fileName.constData();
#endif
TagLib::FileRef f( encodedName );
if ( f.isNull() || !f.tag() )
{
// qDebug() << "Doesn't seem to be a valid audiofile:" << fi.absoluteFilePath();
m_skippedFiles << fi.absoluteFilePath();
// qDebug() << "Doesn't seem to be a valid audiofile:" << fi.canonicalFilePath();
m_skippedFiles << fi.canonicalFilePath();
m_skipped++;
return QVariantMap();
}
@@ -351,8 +354,8 @@ MusicScanner::readFile( const QFileInfo& fi )
if ( artist.isEmpty() || track.isEmpty() )
{
// FIXME: do some clever filename guessing
// qDebug() << "No tags found, skipping" << fi.absoluteFilePath();
m_skippedFiles << fi.absoluteFilePath();
// qDebug() << "No tags found, skipping" << fi.canonicalFilePath();
m_skippedFiles << fi.canonicalFilePath();
m_skipped++;
return QVariantMap();
}
@@ -361,7 +364,7 @@ MusicScanner::readFile( const QFileInfo& fi )
QString url( "file://%1" );
QVariantMap m;
m["url"] = url.arg( fi.absoluteFilePath() );
m["url"] = url.arg( fi.canonicalFilePath() );
m["mtime"] = fi.lastModified().toUTC().toTime_t();
m["size"] = (unsigned int)fi.size();
m["mimetype"] = mimetype;

2
src/musicscanner.h
View File

@@ -46,7 +46,7 @@ public:
MTimeOnly
};
DirLister( QStringList dirs, QMap<QString, unsigned int>& mtimes, bool recursive )
DirLister( const QStringList& dirs, const QMap<QString, unsigned int>& mtimes, bool recursive )
: QObject(), m_dirs( dirs ), m_dirmtimes( mtimes ), m_recursive( recursive )
{
qDebug() << Q_FUNC_INFO;