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/*
* Copyright (C) 2003-2012 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 "update_container.h"
#include "update_internal.h"
#include "update_db.h"
#include "db_lock.h"
#include "directory.h"
#include "song.h"
#include "mapper.h"
#include "glib_compat.h"
#include "decoder_plugin.h"
#include "tag.h"
#include "tag_handler.h"
#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 NULL when it exists already and is
* unmodified.
*
* The caller must lock the database.
*/
static struct directory *
make_directory_if_modified(struct directory *parent, const char *name,
const struct stat *st)
{
struct directory *directory = directory_get_child(parent, name);
// directory exists already
if (directory != NULL) {
if (directory->mtime == st->st_mtime && !walk_discard) {
/* not modified */
db_unlock();
return NULL;
}
delete_directory(directory);
modified = true;
}
directory = directory_make_child(parent, name);
directory->mtime = st->st_mtime;
return directory;
}
bool
update_container_file(struct directory *directory,
const char *name,
const struct stat *st,
const struct decoder_plugin *plugin)
{
if (plugin->container_scan == NULL)
return false;
db_lock();
struct directory *contdir =
make_directory_if_modified(directory, name, st);
if (contdir == NULL) {
/* not modified */
db_unlock();
return true;
}
contdir->device = DEVICE_CONTAINER;
db_unlock();
char *const pathname = map_directory_child_fs(directory, name);
char *vtrack;
unsigned int tnum = 0;
while ((vtrack = plugin->container_scan(pathname, ++tnum)) != NULL) {
struct song *song = song_file_new(vtrack, contdir);
// shouldn't be necessary but it's there..
song->mtime = st->st_mtime;
char *child_path_fs = map_directory_child_fs(contdir, vtrack);
song->tag = tag_new();
decoder_plugin_scan_file(plugin, child_path_fs,
&add_tag_handler, song->tag);
g_free(child_path_fs);
db_lock();
directory_add_song(contdir, song);
db_unlock();
modified = true;
g_message("added %s/%s",
directory_get_path(directory), vtrack);
g_free(vtrack);
}
g_free(pathname);
if (tnum == 1) {
db_lock();
delete_directory(contdir);
db_unlock();
return false;
} else
return true;
}
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