mpd/src/directory_print.c

/*
 * Copyright (C) 2003-2010 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_print.h"
#include "directory.h"
#include "client.h"
#include "song_print.h"
#include "mapper.h"
#include "playlist_list.h"
#include "decoder_list.h"
#include "path.h"
#include "uri.h"
#include "input_stream.h"

#include <sys/types.h>
#include <dirent.h>

static void
dirvec_print(struct client *client, const struct dirvec *dv)
{
	size_t i;

	for (i = 0; i < dv->nr; ++i)
		client_printf(client, DIRECTORY_DIR "%s\n",
			      directory_get_path(dv->base[i]));
}

static void
print_playlist_in_directory(struct client *client,
			    const struct directory *directory,
			    const char *name_utf8)
{
	if (directory_is_root(directory))
		client_printf(client, "playlist: %s\n", name_utf8);
	else
		client_printf(client, "playlist: %s/%s\n",
			      directory_get_path(directory), name_utf8);
}

/**
 * Print a list of playlists in the specified directory.
 */
static void
directory_print_playlists(struct client *client,
			  const struct directory *directory)
{
	char *path_fs = map_directory_fs(directory);
	if (path_fs == NULL)
		return;

	DIR *dir = opendir(path_fs);
	g_free(path_fs);
	if (dir == NULL)
		return;

	struct dirent *ent;
	while ((ent = readdir(dir))) {
		char *name_utf8 = fs_charset_to_utf8(ent->d_name);
		if (name_utf8 == NULL)
			continue;

		const char *suffix = uri_get_suffix(name_utf8);
		if (suffix != NULL &&
		    /* ignore files which are handled by a decoder for
		       now, too expensive to probe them all, and most
		       of them probably don't contain a playlist
		       (e.g. FLAC files without embedded cue sheet) */
		    decoder_plugin_from_suffix(suffix, NULL) == NULL &&
		    playlist_suffix_supported(suffix))
			print_playlist_in_directory(client, directory,
						    name_utf8);

		g_free(name_utf8);
	}

	closedir(dir);
}

void
directory_print(struct client *client, const struct directory *directory)
{
	dirvec_print(client, &directory->children);
	songvec_print(client, &directory->songs);
	directory_print_playlists(client, directory);
}