public static string PrependLongPathToken()

in AppInstallerFileBuilder/AppInstallerFileBuilderLib/IO/FileSystemUtils.cs [281:308]

• 25 lines of code
• 7 McCabe index (conditional complexity)

        public static string PrependLongPathToken(string path)
        {
            const string UncPathPrefix = @"\\";
            const string LongPathPrefixForLocalFiles = @"\\?\";
            const string LongPathPrefixForUNCFiles = @"\\?\UNC\";

            // We only prepend to rooted paths, not relative paths.
            if (Path.IsPathRooted(path))
            {
                // Only change the path if it's not already formatted for long paths support
                if (!path.StartsWith(LongPathPrefixForLocalFiles, StringComparison.OrdinalIgnoreCase) &&
                    !path.StartsWith(LongPathPrefixForUNCFiles, StringComparison.OrdinalIgnoreCase))
                {
                    if (path.StartsWith(UncPathPrefix, StringComparison.OrdinalIgnoreCase))
                    {
                        path = LongPathPrefixForUNCFiles + path.Substring(UncPathPrefix.Length);
                    }
                    else
                    {
                        path = LongPathPrefixForLocalFiles + path;
                    }
                }
            }

            Logger.Logger.Log("Log directory path: {0}", path);

            return path;
        }