112 lines
3 KiB
C
112 lines
3 KiB
C
/**
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* \file emptyfolders.c
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* Example program that prunes empty folders.
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*
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* Copyright (C) 2006 Andy Kelk <andy@mopoke.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "common.h"
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#include <stdlib.h>
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static void prune_empty_folders(LIBMTP_mtpdevice_t *device, LIBMTP_file_t *files, LIBMTP_folder_t *folderlist, int do_delete)
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{
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if(folderlist==NULL)
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return;
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if(folderlist->child == NULL) { // this *might* be empty
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// therefore, check every file for this parent_id
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int found = 0;
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LIBMTP_file_t *file;
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file = files;
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while (file != NULL) {
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if(file->parent_id == folderlist->folder_id) { // folder has a child
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found = 1;
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break;
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}
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file = file->next;
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}
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if(found == 0) { // no files claim this as a parent
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printf("empty folder %u (%s)\n",folderlist->folder_id,folderlist->name);
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if(do_delete) {
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if (LIBMTP_Delete_Object(device,folderlist->folder_id) != 0) {
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printf("Couldn't delete folder %u\n",folderlist->folder_id);
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LIBMTP_Dump_Errorstack(device);
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LIBMTP_Clear_Errorstack(device);
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}
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}
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}
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}
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prune_empty_folders(device,files,folderlist->child,do_delete); // recurse down
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prune_empty_folders(device,files,folderlist->sibling,do_delete); // recurse along
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}
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int main (int argc, char **argv)
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{
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// check if we're doing a dummy run
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int do_delete = 0;
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int opt;
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fprintf(stdout, "libmtp version: " LIBMTP_VERSION_STRING "\n\n");
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while ( (opt = getopt(argc, argv, "d")) != -1 ) {
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switch (opt) {
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case 'd':
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do_delete = 1;
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break;
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default:
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break;
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}
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}
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if(do_delete == 0) {
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printf("This is a dummy run. No folders will be deleted.\n");
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printf("To delete folders, use the '-d' option.\n");
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}
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LIBMTP_mtpdevice_t *device;
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LIBMTP_folder_t *folders;
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LIBMTP_file_t *files;
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LIBMTP_Init();
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device = LIBMTP_Get_First_Device();
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if (device == NULL) {
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printf("No devices.\n");
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exit (0);
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}
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// Get file listing.
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files = LIBMTP_Get_Filelisting_With_Callback(device,NULL,NULL);
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// Get folder listing.
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folders = LIBMTP_Get_Folder_List(device);
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if(folders == NULL) {
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printf("No folders found\n");
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} else {
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prune_empty_folders(device,files,folders,do_delete);
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}
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LIBMTP_destroy_folder_t(folders);
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LIBMTP_destroy_file_t(files);
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LIBMTP_Release_Device(device);
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printf("OK.\n");
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exit (0);
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}
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