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/*
* Musicfs is a FUSE module implementing a media filesystem in userland.
* Copyright (C) 2008 Ulf Lilleengen, Kjetil Ørbekk
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2, as published by the Free Software Foundation.
*
* 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.
*
* A copy of the license can typically be found in COPYING
*/
#include <sqlite3.h>
#include <pthread.h>
#include <debug.h>
#include <musicfs.h>
extern char *db_path;
/*
* Clean up the database:
*
* - Remove disabled paths
* - Remove songs in disabled paths
* - Remove unused artists and genres
*/
void
mfs_cleanup_db(sqlite3 *handle)
{
DEBUG("cleaning up db\n");
/* sqlite doesn't support deleting from multiple tables at the same time :-( */
sqlite3_stmt *st, *st_;
int res, res_;
const char *path;
/* Removed songs from inactive paths */
res = sqlite3_prepare_v2(handle, "SELECT path FROM path WHERE "
"active = 0", -1, &st, NULL);
if (res != SQLITE_OK) {
DEBUG("Error preparing statement: %s\n",
sqlite3_errmsg(handle));
return;
}
res = sqlite3_step(st);
while (res == SQLITE_ROW) {
path = (const char*)sqlite3_column_text(st, 0);
res_ = sqlite3_prepare_v2(handle, "DELETE FROM song WHERE "
"filepath LIKE (?||'%')", -1, &st_, NULL);
if (res_ != SQLITE_OK) {
DEBUG("Error preparing statement: %s\n",
sqlite3_errmsg(handle));
return;
}
DEBUG("removing songs from '%s'\n", path);
sqlite3_bind_text(st_, 1, path, -1, SQLITE_TRANSIENT);
res_ = sqlite3_step(st_);
if (res_ != SQLITE_DONE) {
DEBUG("Error deleting '%s' from database: %s\n",
path, sqlite3_errmsg(handle));
}
sqlite3_finalize(st_);
res = sqlite3_step(st);
}
sqlite3_finalize(st);
/* Remove the actual paths */
res = sqlite3_prepare_v2(handle, "DELETE FROM path WHERE "
"active = 0", -1, &st, NULL);
if (res != SQLITE_OK) {
DEBUG("Error preparing statement: %s\n",
sqlite3_errmsg(handle));
return;
}
res = sqlite3_step(st);
if (res != SQLITE_DONE) {
DEBUG("Error deleting inactive paths from db: %s\n",
sqlite3_errmsg(handle));
return;
}
sqlite3_finalize(st);
}
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