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/*
* Copyright (C) 2003-2009 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 "directory.h"
#include "song.h"
#include "path.h"
#include <glib.h>
#include <assert.h>
#include <string.h>
#include <stdlib.h>
struct directory *
directory_new(const char *path, struct directory *parent)
{
struct directory *directory;
size_t pathlen = strlen(path);
assert(path != NULL);
assert((*path == 0) == (parent == NULL));
directory = g_malloc0(sizeof(*directory) -
sizeof(directory->path) + pathlen + 1);
directory->parent = parent;
memcpy(directory->path, path, pathlen + 1);
return directory;
}
void
directory_free(struct directory *directory)
{
for (unsigned i = 0; i < directory->songs.nr; ++i)
song_free(directory->songs.base[i]);
for (unsigned i = 0; i < directory->children.nr; ++i)
directory_free(directory->children.base[i]);
dirvec_destroy(&directory->children);
songvec_destroy(&directory->songs);
g_free(directory);
/* this resets last dir returned */
/*directory_get_path(NULL); */
}
const char *
directory_get_name(const struct directory *directory)
{
return g_basename(directory->path);
}
void
directory_prune_empty(struct directory *directory)
{
int i;
struct dirvec *dv = &directory->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_lookup_directory(struct directory *directory, const char *uri)
{
struct directory *cur = directory;
struct directory *found = NULL;
char *duplicated;
char *locate;
assert(uri != NULL);
if (isRootDirectory(uri))
return directory;
duplicated = g_strdup(uri);
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, '/');
}
g_free(duplicated);
return found;
}
void
directory_sort(struct directory *directory)
{
int i;
struct dirvec *dv = &directory->children;
dirvec_sort(dv);
songvec_sort(&directory->songs);
for (i = dv->nr; --i >= 0; )
directory_sort(dv->base[i]);
}
int
directory_walk(struct directory *directory,
int (*forEachSong)(struct song *, void *),
int (*forEachDir)(struct directory *, void *),
void *data)
{
struct dirvec *dv = &directory->children;
int err = 0;
size_t j;
if (forEachDir && (err = forEachDir(directory, data)) < 0)
return err;
if (forEachSong) {
err = songvec_for_each(&directory->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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