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-rw-r--r--src/db/update/Container.cxx132
1 files changed, 132 insertions, 0 deletions
diff --git a/src/db/update/Container.cxx b/src/db/update/Container.cxx
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+++ b/src/db/update/Container.cxx
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+/*
+ * 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.
+ */
+
+#include "config.h" /* must be first for large file support */
+#include "Walk.hxx"
+#include "UpdateDomain.hxx"
+#include "db/DatabaseLock.hxx"
+#include "db/plugins/simple/Directory.hxx"
+#include "db/plugins/simple/Song.hxx"
+#include "storage/StorageInterface.hxx"
+#include "decoder/DecoderPlugin.hxx"
+#include "decoder/DecoderList.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "storage/FileInfo.hxx"
+#include "tag/TagHandler.hxx"
+#include "tag/TagBuilder.hxx"
+#include "Log.hxx"
+
+#include <sys/stat.h>
+
+Directory *
+UpdateWalk::MakeDirectoryIfModified(Directory &parent, const char *name,
+ const FileInfo &info)
+{
+ Directory *directory = parent.FindChild(name);
+
+ // directory exists already
+ if (directory != nullptr) {
+ if (directory->IsMount())
+ return nullptr;
+
+ if (directory->mtime == info.mtime && !walk_discard) {
+ /* not modified */
+ return nullptr;
+ }
+
+ editor.DeleteDirectory(directory);
+ modified = true;
+ }
+
+ directory = parent.MakeChild(name);
+ directory->mtime = info.mtime;
+ return directory;
+}
+
+static bool
+SupportsContainerSuffix(const DecoderPlugin &plugin, const char *suffix)
+{
+ return plugin.container_scan != nullptr &&
+ plugin.SupportsSuffix(suffix);
+}
+
+bool
+UpdateWalk::UpdateContainerFile(Directory &directory,
+ const char *name, const char *suffix,
+ const FileInfo &info)
+{
+ const DecoderPlugin *_plugin = decoder_plugins_find([suffix](const DecoderPlugin &plugin){
+ return SupportsContainerSuffix(plugin, suffix);
+ });
+ if (_plugin == nullptr)
+ return false;
+ const DecoderPlugin &plugin = *_plugin;
+
+ db_lock();
+ Directory *contdir = MakeDirectoryIfModified(directory, name, info);
+ if (contdir == nullptr) {
+ /* not modified */
+ db_unlock();
+ return true;
+ }
+
+ contdir->device = DEVICE_CONTAINER;
+ db_unlock();
+
+ const auto pathname = storage.MapFS(contdir->GetPath());
+ if (pathname.IsNull()) {
+ /* not a local file: skip, because the container API
+ supports only local files */
+ editor.LockDeleteDirectory(contdir);
+ return false;
+ }
+
+ char *vtrack;
+ unsigned int tnum = 0;
+ TagBuilder tag_builder;
+ while ((vtrack = plugin.container_scan(pathname, ++tnum)) != nullptr) {
+ Song *song = Song::NewFile(vtrack, *contdir);
+
+ // shouldn't be necessary but it's there..
+ song->mtime = info.mtime;
+
+ const auto child_path_fs = AllocatedPath::Build(pathname,
+ vtrack);
+ plugin.ScanFile(child_path_fs,
+ add_tag_handler, &tag_builder);
+
+ tag_builder.Commit(song->tag);
+
+ db_lock();
+ contdir->AddSong(song);
+ db_unlock();
+
+ modified = true;
+
+ FormatDefault(update_domain, "added %s/%s",
+ directory.GetPath(), vtrack);
+ delete[] vtrack;
+ }
+
+ if (tnum == 1) {
+ editor.LockDeleteDirectory(contdir);
+ return false;
+ } else
+ return true;
+}