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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.h"
#include "utils.h"
#include "ack.h"
#include "myfprintf.h"
#include "dirvec.h"
struct directory * directory_new(const char *dirname, struct directory * parent)
{
struct directory *dir;
assert(dirname != NULL);
assert((*dirname == 0) == (parent == NULL));
dir = xcalloc(1, sizeof(struct directory));
dir->path = xstrdup(dirname);
dir->parent = parent;
return dir;
}
void directory_free(struct directory *dir)
{
dirvec_destroy(&dir->children);
songvec_destroy(&dir->songs);
free(dir->path);
free(dir);
/* this resets last dir returned */
/*directory_get_path(NULL); */
}
void directory_prune_empty(struct directory *dir)
{
int i;
struct dirvec *dv = &dir->children;
for (i = dv->nr; --i >= 0; ) {
directory_prune_empty(dv->base[i]);
if (directory_is_empty(dv->base[i]))
dirvec_delete(dv, dv->base[i]);
}
if (!dv->nr)
dirvec_destroy(dv);
}
struct directory *
directory_get_subdir(struct directory *dir, const char *name)
{
struct directory *cur = dir;
struct directory *found = NULL;
char *duplicated;
char *locate;
assert(name != NULL);
if (isRootDirectory(name))
return dir;
duplicated = xstrdup(name);
locate = strchr(duplicated, '/');
while (1) {
if (locate)
*locate = '\0';
if (!(found = directory_get_child(cur, duplicated)))
break;
assert(cur == found->parent);
cur = found;
if (!locate)
break;
*locate = '/';
locate = strchr(locate + 1, '/');
}
free(duplicated);
return found;
}
void directory_sort(struct directory *dir)
{
int i;
struct dirvec *dv = &dir->children;
dirvec_sort(dv);
songvec_sort(&dir->songs);
for (i = dv->nr; --i >= 0; )
directory_sort(dv->base[i]);
}
int
directory_walk(struct directory *dir,
int (*forEachSong) (struct mpd_song *, void *),
int (*forEachDir) (struct directory *, void *),
void *data)
{
struct dirvec *dv = &dir->children;
int err = 0;
size_t j;
if (forEachDir && (err = forEachDir(dir, data)) < 0)
return err;
if (forEachSong) {
err = songvec_for_each(&dir->songs, forEachSong, data);
if (err < 0)
return err;
}
for (j = 0; err >= 0 && j < dv->nr; ++j)
err = directory_walk(dv->base[j], forEachSong,
forEachDir, data);
return err;
}
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