gistfile1.m

+ (NSURL*)getDatasetRootFolder {
    NSURL *appsupport = [[NSFileManager defaultManager] URLForDirectory:NSApplicationSupportDirectory
                                                               inDomain:NSUserDomainMask
                                                      appropriateForURL:nil
                                                                 create:YES
                                                                  error:nil];
    NSURL *root = [appsupport URLByAppendingPathComponent:@"datasets" isDirectory:YES];
    BOOL is_directory;
    BOOL exists = [[NSFileManager defaultManager] fileExistsAtPath:root.absoluteString
                                                       isDirectory:&is_directory];
    if (!(exists && is_directory))
        [[NSFileManager defaultManager] createDirectoryAtURL:root
                                 withIntermediateDirectories:YES
                                                  attributes:nil
                                                       error:nil];
    return root;
}