/* * Copyright (C) 2003-2013 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. */ #include "config.h" /* must be first for large file support */ #include "UpdateContainer.hxx" #include "UpdateInternal.hxx" #include "UpdateDatabase.hxx" #include "UpdateDomain.hxx" #include "DatabaseLock.hxx" #include "Directory.hxx" #include "Song.hxx" #include "DecoderPlugin.hxx" #include "Mapper.hxx" #include "fs/AllocatedPath.hxx" #include "tag/TagHandler.hxx" #include "tag/TagBuilder.hxx" #include "Log.hxx" #include <glib.h> /** * 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. */ static Directory * make_directory_if_modified(Directory &parent, const char *name, const struct stat *st) { Directory *directory = parent.FindChild(name); // directory exists already if (directory != nullptr) { if (directory->mtime == st->st_mtime && !walk_discard) { /* not modified */ return nullptr; } delete_directory(directory); modified = true; } directory = parent.MakeChild(name); directory->mtime = st->st_mtime; return directory; } bool update_container_file(Directory &directory, const char *name, const struct stat *st, const DecoderPlugin &plugin) { if (plugin.container_scan == nullptr) return false; db_lock(); Directory *contdir = make_directory_if_modified(directory, name, st); if (contdir == nullptr) { /* not modified */ db_unlock(); return true; } contdir->device = DEVICE_CONTAINER; db_unlock(); const auto pathname = map_directory_child_fs(directory, name); char *vtrack; unsigned int tnum = 0; TagBuilder tag_builder; while ((vtrack = plugin.container_scan(pathname.c_str(), ++tnum)) != nullptr) { Song *song = Song::NewFile(vtrack, contdir); // shouldn't be necessary but it's there.. song->mtime = st->st_mtime; const auto child_path_fs = map_directory_child_fs(*contdir, vtrack); plugin.ScanFile(child_path_fs.c_str(), add_tag_handler, &tag_builder); if (tag_builder.IsDefined()) song->tag = tag_builder.Commit(); else tag_builder.Clear(); db_lock(); contdir->AddSong(song); db_unlock(); modified = true; FormatDefault(update_domain, "added %s/%s", directory.GetPath(), vtrack); g_free(vtrack); } if (tnum == 1) { db_lock(); delete_directory(contdir); db_unlock(); return false; } else return true; }