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/*
* Copyright (C) 2003-2011 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 "config.h"
#include "directory.h"
#include "song.h"
#include "path.h"
#include "db_visitor.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);
playlist_vector_init(&directory->playlists);
return directory;
}
void
directory_free(struct directory *directory)
{
playlist_vector_deinit(&directory->playlists);
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; ) {
struct directory *child = dv->base[i];
directory_prune_empty(child);
if (directory_is_empty(child)) {
dirvec_delete(dv, child);
directory_free(child);
}
}
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;
}
struct song *
directory_lookup_song(struct directory *directory, const char *uri)
{
char *duplicated, *base;
struct song *song;
assert(directory != NULL);
assert(uri != NULL);
duplicated = g_strdup(uri);
base = strrchr(duplicated, '/');
if (base != NULL) {
*base++ = 0;
directory = directory_lookup_directory(directory, duplicated);
if (directory == NULL) {
g_free(duplicated);
return NULL;
}
} else
base = duplicated;
song = songvec_find(&directory->songs, base);
assert(song == NULL || song->parent == directory);
g_free(duplicated);
return song;
}
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]);
}
bool
directory_walk(const struct directory *directory, bool recursive,
const struct db_visitor *visitor, void *ctx,
GError **error_r)
{
assert(directory != NULL);
assert(visitor != NULL);
assert(error_r == NULL || *error_r == NULL);
if (visitor->song != NULL) {
const struct songvec *sv = &directory->songs;
for (size_t i = 0; i < sv->nr; ++i)
if (!visitor->song(sv->base[i], ctx, error_r))
return false;
}
if (visitor->playlist != NULL) {
const struct playlist_vector *pv = &directory->playlists;
for (const struct playlist_metadata *i = pv->head;
i != NULL; i = i->next)
if (!visitor->playlist(i, ctx, error_r))
return false;
}
const struct dirvec *dv = &directory->children;
for (size_t i = 0; i < dv->nr; ++i) {
struct directory *child = dv->base[i];
if (visitor->directory != NULL &&
!visitor->directory(child, ctx, error_r))
return false;
if (recursive &&
!directory_walk(child, recursive, visitor, ctx, error_r))
return false;
}
return true;
}
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