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/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "directory_save.h"
#include "directory.h"
#include "song.h"
#include "log.h"
#include "path.h"
#include "utils.h"
#include "dirvec.h"
#include "myfprintf.h"
static int directory_song_write(struct mpd_song *song, void *data)
{
int fd = (int)(size_t)data;
if (fdprintf(fd, SONG_KEY "%s\n", song->url) < 0)
return -1;
if (song_print_info(song, fd) < 0)
return -1;
if (fdprintf(fd, SONG_MTIME "%li\n", (long)song->mtime) < 0)
return -1;
return 0;
}
/* TODO error checking */
int directory_save(int fd, struct directory * directory)
{
struct dirvec *children = &directory->children;
size_t i;
if (!isRootDirectory(directory->path) &&
fdprintf(fd, DIRECTORY_BEGIN "%s\n",
directory_get_path(directory)) < 0)
return -1;
for (i = 0; i < children->nr; ++i) {
struct directory *cur = children->base[i];
const char *base = mpd_basename(cur->path);
if (fdprintf(fd, DIRECTORY_DIR "%s\n", base) < 0)
return -1;
if (directory_save(fd, cur) < 0)
return -1;
}
if (fdprintf(fd, SONG_BEGIN "\n") < 0)
return -1;
if (songvec_for_each(&directory->songs,
directory_song_write, (void *)(size_t)fd) < 0)
return -1;
if (fdprintf(fd, SONG_END "\n") < 0)
return -1;
if (!isRootDirectory(directory->path) &&
fdprintf(fd, DIRECTORY_END "%s\n",
directory_get_path(directory)) < 0)
return -1;
return 0;
}
void directory_load(FILE * fp, struct directory * directory)
{
char buffer[MPD_PATH_MAX * 2];
int bufferSize = MPD_PATH_MAX * 2;
char key[MPD_PATH_MAX * 2];
char *name;
while (myFgets(buffer, bufferSize, fp)
&& prefixcmp(buffer, DIRECTORY_END)) {
if (!prefixcmp(buffer, DIRECTORY_DIR)) {
struct directory *subdir;
strcpy(key, &(buffer[strlen(DIRECTORY_DIR)]));
if (!myFgets(buffer, bufferSize, fp))
FATAL("Error reading db, fgets\n");
/* for compatibility with db's prior to 0.11 */
if (!prefixcmp(buffer, DIRECTORY_MTIME)) {
if (!myFgets(buffer, bufferSize, fp))
FATAL("Error reading db, fgets\n");
}
if (prefixcmp(buffer, DIRECTORY_BEGIN))
FATAL("Error reading db at line: %s\n", buffer);
name = &(buffer[strlen(DIRECTORY_BEGIN)]);
if (prefixcmp(name, directory->path) != 0)
FATAL("Wrong path in database: '%s' in '%s'\n",
name, directory->path);
if ((subdir = directory_get_child(directory, name))) {
assert(subdir->parent == directory);
} else {
subdir = directory_new(name, directory);
dirvec_add(&directory->children, subdir);
}
directory_load(fp, subdir);
} else if (!prefixcmp(buffer, SONG_BEGIN)) {
readSongInfoIntoList(fp, directory);
} else {
FATAL("Unknown line in db: %s\n", buffer);
}
}
}
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