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Diffstat (limited to 'src/UpdateArchive.cxx')
| -rw-r--r-- | src/UpdateArchive.cxx | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/UpdateArchive.cxx b/src/UpdateArchive.cxx new file mode 100644 index 000000000..72f7aaf19 --- /dev/null +++ b/src/UpdateArchive.cxx @@ -0,0 +1,159 @@ +/* + * 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 "UpdateArchive.hxx" +#include "UpdateInternal.hxx" +#include "DatabaseLock.hxx" +#include "Directory.hxx" +#include "song.h" +#include "Mapper.hxx" + +extern "C" { +#include "archive_list.h" +#include "archive_plugin.h" +} + +#include <glib.h> + +#include <string.h> + +static void +update_archive_tree(Directory *directory, char *name) +{ + char *tmp = strchr(name, '/'); + if (tmp) { + *tmp = 0; + //add dir is not there already + db_lock(); + Directory *subdir = + directory->MakeChild(name); + subdir->device = DEVICE_INARCHIVE; + db_unlock(); + //create directories first + update_archive_tree(subdir, tmp+1); + } else { + if (strlen(name) == 0) { + g_warning("archive returned directory only"); + return; + } + + //add file + db_lock(); + struct song *song = directory->FindSong(name); + db_unlock(); + if (song == NULL) { + song = song_file_load(name, directory); + if (song != NULL) { + db_lock(); + directory->AddSong(song); + db_unlock(); + + modified = true; + g_message("added %s/%s", + directory->GetPath(), name); + } + } + } +} + +/** + * Updates the file listing from an archive file. + * + * @param parent the parent directory the archive file resides in + * @param name the UTF-8 encoded base name of the archive file + * @param st stat() information on the archive file + * @param plugin the archive plugin which fits this archive type + */ +static void +update_archive_file2(Directory *parent, const char *name, + const struct stat *st, + const struct archive_plugin *plugin) +{ + db_lock(); + Directory *directory = parent->FindChild(name); + db_unlock(); + + if (directory != NULL && directory->mtime == st->st_mtime && + !walk_discard) + /* MPD has already scanned the archive, and it hasn't + changed since - don't consider updating it */ + return; + + char *path_fs = map_directory_child_fs(parent, name); + + /* open archive */ + GError *error = NULL; + struct archive_file *file = archive_file_open(plugin, path_fs, &error); + if (file == NULL) { + g_free(path_fs); + g_warning("%s", error->message); + g_error_free(error); + return; + } + + g_debug("archive %s opened", path_fs); + g_free(path_fs); + + if (directory == NULL) { + g_debug("creating archive directory: %s", name); + db_lock(); + directory = parent->CreateChild(name); + /* mark this directory as archive (we use device for + this) */ + directory->device = DEVICE_INARCHIVE; + db_unlock(); + } + + directory->mtime = st->st_mtime; + + archive_file_scan_reset(file); + + char *filepath; + while ((filepath = archive_file_scan_next(file)) != NULL) { + /* split name into directory and file */ + g_debug("adding archive file: %s", filepath); + update_archive_tree(directory, filepath); + } + + archive_file_close(file); +} + +bool +update_archive_file(Directory *directory, + const char *name, const char *suffix, + const struct stat *st) +{ +#ifdef ENABLE_ARCHIVE + const struct archive_plugin *plugin = + archive_plugin_from_suffix(suffix); + if (plugin == NULL) + return false; + + update_archive_file2(directory, name, st, plugin); + return true; +#else + (void)directory; + (void)name; + (void)suffix; + (void)st; + + return false; +#endif +} |