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Diffstat (limited to 'src/db/update/Walk.hxx')
-rw-r--r-- | src/db/update/Walk.hxx | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/db/update/Walk.hxx b/src/db/update/Walk.hxx new file mode 100644 index 000000000..bf3eb8ae4 --- /dev/null +++ b/src/db/update/Walk.hxx @@ -0,0 +1,141 @@ +/* + * Copyright (C) 2003-2014 The Music Player Daemon Project + * http://www.musicpd.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. + * + * 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. + */ + +#ifndef MPD_UPDATE_WALK_HXX +#define MPD_UPDATE_WALK_HXX + +#include "check.h" +#include "Editor.hxx" + +#include <sys/stat.h> + +struct stat; +struct FileInfo; +struct Directory; +struct ArchivePlugin; +class Storage; +class ExcludeList; + +class UpdateWalk final { +#ifdef ENABLE_ARCHIVE + friend class UpdateArchiveVisitor; +#endif + +#ifndef WIN32 + static constexpr bool DEFAULT_FOLLOW_INSIDE_SYMLINKS = true; + static constexpr bool DEFAULT_FOLLOW_OUTSIDE_SYMLINKS = true; + + bool follow_inside_symlinks; + bool follow_outside_symlinks; +#endif + + bool walk_discard; + bool modified; + + Storage &storage; + + DatabaseEditor editor; + +public: + UpdateWalk(EventLoop &_loop, DatabaseListener &_listener, + Storage &_storage); + + /** + * Returns true if the database was modified. + */ + bool Walk(Directory &root, const char *path, bool discard); + +private: + gcc_pure + bool SkipSymlink(const Directory *directory, + const char *utf8_name) const; + + void RemoveExcludedFromDirectory(Directory &directory, + const ExcludeList &exclude_list); + + void PurgeDeletedFromDirectory(Directory &directory); + + void UpdateSongFile2(Directory &directory, + const char *name, const char *suffix, + const FileInfo &info); + + bool UpdateSongFile(Directory &directory, + const char *name, const char *suffix, + const FileInfo &info); + + bool UpdateContainerFile(Directory &directory, + const char *name, const char *suffix, + const FileInfo &info); + + +#ifdef ENABLE_ARCHIVE + void UpdateArchiveTree(Directory &parent, const char *name); + + bool UpdateArchiveFile(Directory &directory, + const char *name, const char *suffix, + const FileInfo &info); + + void UpdateArchiveFile(Directory &directory, const char *name, + const FileInfo &info, + const ArchivePlugin &plugin); + + +#else + bool UpdateArchiveFile(gcc_unused Directory &directory, + gcc_unused const char *name, + gcc_unused const char *suffix, + gcc_unused const FileInfo &info) { + return false; + } +#endif + + bool UpdatePlaylistFile(Directory &directory, + const char *name, const char *suffix, + const FileInfo &info); + + bool UpdateRegularFile(Directory &directory, + const char *name, const FileInfo &info); + + void UpdateDirectoryChild(Directory &directory, + const char *name, const FileInfo &info); + + bool UpdateDirectory(Directory &directory, const FileInfo &info); + + /** + * Create the specified directory object if it does not exist + * already or if the #stat object indicates that it has been + * modified since the last update. Returns nullptr when it + * exists already and is unmodified. + * + * The caller must lock the database. + */ + Directory *MakeDirectoryIfModified(Directory &parent, const char *name, + const FileInfo &info); + + Directory *DirectoryMakeChildChecked(Directory &parent, + const char *uri_utf8, + const char *name_utf8); + + Directory *DirectoryMakeUriParentChecked(Directory &root, + const char *uri); + + void UpdateUri(Directory &root, const char *uri); +}; + +#endif |