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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 "song_save.h"
#include <glib.h>
#include <assert.h>
#include <string.h>
#define DIRECTORY_MTIME "mtime: "
#define DIRECTORY_BEGIN "begin: "
#define DIRECTORY_END "end: "
/* TODO error checking */
int
directory_save(FILE *fp, struct directory *directory)
{
struct dirvec *children = &directory->children;
size_t i;
int retv;
if (!directory_is_root(directory)) {
fprintf(fp, DIRECTORY_MTIME "%lu\n",
(unsigned long)directory->mtime);
retv = fprintf(fp, "%s%s\n", DIRECTORY_BEGIN,
directory_get_path(directory));
if (retv < 0)
return -1;
}
for (i = 0; i < children->nr; ++i) {
struct directory *cur = children->base[i];
char *base = g_path_get_basename(cur->path);
retv = fprintf(fp, DIRECTORY_DIR "%s\n", base);
g_free(base);
if (retv < 0)
return -1;
if (directory_save(fp, cur) < 0)
return -1;
}
songvec_save(fp, &directory->songs);
if (!directory_is_root(directory) &&
fprintf(fp, 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];
char key[MPD_PATH_MAX * 2];
char *name;
while (fgets(buffer, sizeof(buffer), fp)
&& !g_str_has_prefix(buffer, DIRECTORY_END)) {
if (g_str_has_prefix(buffer, DIRECTORY_DIR)) {
struct directory *subdir;
g_strchomp(buffer);
strcpy(key, &(buffer[strlen(DIRECTORY_DIR)]));
if (!fgets(buffer, sizeof(buffer), fp))
FATAL("Error reading db, fgets\n");
if (g_str_has_prefix(buffer, DIRECTORY_MTIME)) {
directory->mtime =
g_ascii_strtoull(buffer + sizeof(DIRECTORY_MTIME) - 1,
NULL, 10);
if (!fgets(buffer, sizeof(buffer), fp))
FATAL("Error reading db, fgets\n");
}
if (!g_str_has_prefix(buffer, DIRECTORY_BEGIN))
FATAL("Error reading db at line: %s\n", buffer);
g_strchomp(buffer);
name = &(buffer[strlen(DIRECTORY_BEGIN)]);
if (!g_str_has_prefix(name, directory->path) != 0)
FATAL("Wrong path in database: '%s' in '%s'\n",
name, directory->path);
subdir = directory_get_child(directory, name);
if (subdir != NULL) {
assert(subdir->parent == directory);
} else {
subdir = directory_new(name, directory);
dirvec_add(&directory->children, subdir);
}
directory_load(fp, subdir);
} else if (g_str_has_prefix(buffer, SONG_BEGIN)) {
readSongInfoIntoList(fp, &directory->songs, directory);
} else {
FATAL("Unknown line in db: %s\n", buffer);
}
}
}
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