128 lines
3.2 KiB
C++
128 lines
3.2 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h" /* must be first for large file support */
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#include "UpdateContainer.hxx"
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#include "UpdateInternal.hxx"
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#include "UpdateDatabase.hxx"
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#include "UpdateDomain.hxx"
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#include "DatabaseLock.hxx"
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#include "Directory.hxx"
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#include "Song.hxx"
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#include "DecoderPlugin.hxx"
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#include "Mapper.hxx"
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#include "fs/Path.hxx"
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#include "tag/TagHandler.hxx"
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#include "tag/TagBuilder.hxx"
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#include "Log.hxx"
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#include <glib.h>
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/**
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* Create the specified directory object if it does not exist already
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* or if the #stat object indicates that it has been modified since
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* the last update. Returns NULL when it exists already and is
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* unmodified.
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*
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* The caller must lock the database.
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*/
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static Directory *
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make_directory_if_modified(Directory *parent, const char *name,
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const struct stat *st)
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{
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Directory *directory = parent->FindChild(name);
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// directory exists already
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if (directory != NULL) {
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if (directory->mtime == st->st_mtime && !walk_discard) {
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/* not modified */
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return NULL;
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}
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delete_directory(directory);
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modified = true;
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}
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directory = parent->MakeChild(name);
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directory->mtime = st->st_mtime;
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return directory;
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}
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bool
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update_container_file(Directory *directory,
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const char *name,
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const struct stat *st,
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const struct decoder_plugin *plugin)
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{
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if (plugin->container_scan == NULL)
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return false;
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db_lock();
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Directory *contdir = make_directory_if_modified(directory, name, st);
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if (contdir == NULL) {
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/* not modified */
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db_unlock();
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return true;
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}
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contdir->device = DEVICE_CONTAINER;
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db_unlock();
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const Path pathname = map_directory_child_fs(directory, name);
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char *vtrack;
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unsigned int tnum = 0;
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TagBuilder tag_builder;
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while ((vtrack = plugin->container_scan(pathname.c_str(), ++tnum)) != NULL) {
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Song *song = Song::NewFile(vtrack, contdir);
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// shouldn't be necessary but it's there..
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song->mtime = st->st_mtime;
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const Path child_path_fs =
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map_directory_child_fs(contdir, vtrack);
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decoder_plugin_scan_file(plugin, child_path_fs.c_str(),
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&add_tag_handler, &tag_builder);
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if (tag_builder.IsDefined())
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song->tag = tag_builder.Commit();
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else
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tag_builder.Clear();
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db_lock();
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contdir->AddSong(song);
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db_unlock();
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modified = true;
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FormatInfo(update_domain, "added %s/%s",
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directory->GetPath(), vtrack);
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g_free(vtrack);
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}
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if (tnum == 1) {
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db_lock();
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delete_directory(contdir);
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db_unlock();
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return false;
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} else
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return true;
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}
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