// ////////////////////////////////////////////////////////////////////////////
std::string CoreDumperBase::ResolveBaseName(const char *file_name_base,
bool is_full_name, MLB::Utility::ProcessId process_id,
const std::string &host_name, const MLB::Utility::TimeT &time_stamp)
{
if ((file_name_base == NULL) || (!(*file_name_base)))
return(MLB::Utility::CanonicalizePathNameSlashes(
GetDefaultCoreDir() + MLB::Utility::PathNameSeparatorCanonical_String +
DecorateBaseName(NULL, process_id, host_name, time_stamp)));
if (!is_full_name)
return(MLB::Utility::CanonicalizePathNameSlashes(GetDefaultCoreDir() +
MLB::Utility::PathNameSeparatorCanonical_String +
DecorateBaseName(file_name_base, process_id, host_name, time_stamp)));
std::string tmp_base(MLB::Utility::GetFileNamePortion(file_name_base));
std::string dir_part(MLB::Utility::GetDirNamePortion(file_name_base));
if (tmp_base.empty())
tmp_base = DecorateBaseName(NULL, process_id, host_name, time_stamp);
if (dir_part.empty())
dir_part = GetDefaultCoreDir();
MLB::Utility::ResolveDirectoryPath(dir_part, "", true);
return(MLB::Utility::CanonicalizePathNameSlashes(dir_part +
MLB::Utility::PathNameSeparatorCanonical_String + tmp_base));
}
void LibraryWatcher::ScanSubdirectory(const QString& path,
const Subdirectory& subdir,
ScanTransaction* t,
bool force_noincremental) {
QFileInfo path_info(path);
QDir path_dir(path);
// Do not scan symlinked dirs that are already in collection
if (path_info.isSymLink()) {
QString real_path = path_info.symLinkTarget();
for (const Directory& dir : watched_dirs_) {
if (real_path.startsWith(dir.path)) {
t->AddToProgress(1);
return;
}
}
}
// Do not scan directories containing a .nomedia or .nomusic file
if (path_dir.exists(kNoMediaFile) ||
path_dir.exists(kNoMusicFile)) {
t->AddToProgress(1);
return;
}
if (!t->ignores_mtime() && !force_noincremental && t->is_incremental() &&
subdir.mtime == path_info.lastModified().toTime_t()) {
// The directory hasn't changed since last time
t->AddToProgress(1);
return;
}
QMap<QString, QStringList> album_art;
QStringList files_on_disk;
SubdirectoryList my_new_subdirs;
// If a directory is moved then only its parent gets a changed notification,
// so we need to look and see if any of our children don't exist any more.
// If one has been removed, "rescan" it to get the deleted songs
SubdirectoryList previous_subdirs = t->GetImmediateSubdirs(path);
for (const Subdirectory& subdir : previous_subdirs) {
if (!QFile::exists(subdir.path) && subdir.path != path) {
t->AddToProgressMax(1);
ScanSubdirectory(subdir.path, subdir, t, true);
}
}
// First we "quickly" get a list of the files in the directory that we
// think might be music. While we're here, we also look for new
// subdirectories
// and possible album artwork.
QDirIterator it(
path, QDir::Dirs | QDir::Files | QDir::Hidden | QDir::NoDotAndDotDot);
while (it.hasNext()) {
if (stop_requested_) return;
QString child(it.next());
QFileInfo child_info(child);
if (child_info.isDir()) {
if (!child_info.isHidden() && !t->HasSeenSubdir(child)) {
// We haven't seen this subdirectory before - add it to a list and
// later we'll tell the backend about it and scan it.
Subdirectory new_subdir;
new_subdir.directory_id = -1;
new_subdir.path = child;
new_subdir.mtime = child_info.lastModified().toTime_t();
my_new_subdirs << new_subdir;
}
} else {
QString ext_part(ExtensionPart(child));
QString dir_part(DirectoryPart(child));
if (sValidImages.contains(ext_part))
album_art[dir_part] << child;
else if (!child_info.isHidden())
files_on_disk << child;
}
}
if (stop_requested_) return;
// Ask the database for a list of files in this directory
SongList songs_in_db = t->FindSongsInSubdirectory(path);
QSet<QString> cues_processed;
// Now compare the list from the database with the list of files on disk
for (const QString& file : files_on_disk) {
if (stop_requested_) return;
// associated cue
QString matching_cue = NoExtensionPart(file) + ".cue";
Song matching_song;
if (FindSongByPath(songs_in_db, file, &matching_song)) {
uint matching_cue_mtime = GetMtimeForCue(matching_cue);
// The song is in the database and still on disk.
// Check the mtime to see if it's been changed since it was added.
QFileInfo file_info(file);
if (!file_info.exists()) {
// Partially fixes race condition - if file was removed between being
// added to the list and now.
files_on_disk.removeAll(file);
continue;
}
// cue sheet's path from library (if any)
QString song_cue = matching_song.cue_path();
uint song_cue_mtime = GetMtimeForCue(song_cue);
bool cue_deleted = song_cue_mtime == 0 && matching_song.has_cue();
bool cue_added = matching_cue_mtime != 0 && !matching_song.has_cue();
// watch out for cue songs which have their mtime equal to
// qMax(media_file_mtime, cue_sheet_mtime)
bool changed =
(matching_song.mtime() !=
qMax(file_info.lastModified().toTime_t(), song_cue_mtime)) ||
cue_deleted || cue_added;
// Also want to look to see whether the album art has changed
QString image = ImageForSong(file, album_art);
if ((matching_song.art_automatic().isEmpty() && !image.isEmpty()) ||
(!matching_song.art_automatic().isEmpty() &&
!matching_song.has_embedded_cover() &&
!QFile::exists(matching_song.art_automatic()))) {
changed = true;
}
// the song's changed - reread the metadata from file
if (t->ignores_mtime() || changed) {
qLog(Debug) << file << "changed";
// if cue associated...
if (!cue_deleted && (matching_song.has_cue() || cue_added)) {
UpdateCueAssociatedSongs(file, path, matching_cue, image, t);
// if no cue or it's about to lose it...
} else {
UpdateNonCueAssociatedSong(file, matching_song, image, cue_deleted,
t);
}
}
// nothing has changed - mark the song available without re-scanning
if (matching_song.is_unavailable()) t->readded_songs << matching_song;
} else {
// The song is on disk but not in the DB
SongList song_list =
ScanNewFile(file, path, matching_cue, &cues_processed);
if (song_list.isEmpty()) {
continue;
}
qLog(Debug) << file << "created";
// choose an image for the song(s)
QString image = ImageForSong(file, album_art);
for (Song song : song_list) {
song.set_directory_id(t->dir());
if (song.art_automatic().isEmpty()) song.set_art_automatic(image);
t->new_songs << song;
}
}
}
// Look for deleted songs
for (const Song& song : songs_in_db) {
if (!song.is_unavailable() &&
!files_on_disk.contains(song.url().toLocalFile())) {
qLog(Debug) << "Song deleted from disk:" << song.url().toLocalFile();
t->deleted_songs << song;
}
}
// Add this subdir to the new or touched list
Subdirectory updated_subdir;
updated_subdir.directory_id = t->dir();
updated_subdir.mtime =
path_info.exists() ? path_info.lastModified().toTime_t() : 0;
updated_subdir.path = path;
if (subdir.directory_id == -1)
t->new_subdirs << updated_subdir;
else
t->touched_subdirs << updated_subdir;
t->AddToProgress(1);
// Recurse into the new subdirs that we found
t->AddToProgressMax(my_new_subdirs.count());
for (const Subdirectory& my_new_subdir : my_new_subdirs) {
if (stop_requested_) return;
ScanSubdirectory(my_new_subdir.path, my_new_subdir, t, true);
}
}