true $(IntermediateOutputPath)Generated $(CompilerGeneratedFilesOutputPath)\Ariadne.Generator\Ariadne.Generator.ArcScriptGenerator\ $([System.String]::Copy('%(Filename)').Replace('.CodeBehind', '')).cs
 relativeTo = (folder, path) =>
        {
            string[] from = Path.GetFullPath(folder).TrimEnd('\\').Split('\\');
            string[] to = Path.GetFullPath(path).Split('\\');
            int shared = 0;
            while (shared < from.Length && shared < to.Length - 1
                && string.Equals(from[shared], to[shared], StringComparison.OrdinalIgnoreCase))
            {
                ++shared;
            }

            if (shared == 0)
            {
                return path;
            }

            var parts = new List();
            for (int i = shared; i < from.Length; ++i)
            {
                parts.Add("..");
            }

            for (int i = shared; i < to.Length; ++i)
            {
                parts.Add(to[i]);
            }

            return string.Join("\\", parts);
        };

        // The name the generator adds a script file's code-behind under: CodeBehindWriter.HintNameOf says the same.
        Func hintNameOf = scriptPath =>
        {
            string path = scriptPath.Replace('\\', '/');
            string root = ProjectDirectory.Replace('\\', '/').TrimEnd('/') + "/";
            if (ProjectDirectory.Length > 0 && path.StartsWith(root, StringComparison.OrdinalIgnoreCase))
            {
                path = path.Substring(root.Length);
            }

            var segments = new List();
            foreach (string segment in path.Split('/'))
            {
                if (segment.Length == 0 || segment == ".")
                {
                    continue;
                }

                segments.Add(segment == ".." ? "__" : segment.Replace(':', '_'));
            }

            segments[segments.Count - 1] = Path.GetFileNameWithoutExtension(segments[segments.Count - 1]);
            return string.Join("/", segments) + ".CodeBehind.cs";
        };

        foreach (ITaskItem script in Scripts)
        {
            string scriptPath = script.GetMetadata("FullPath");
            string source = Path.Combine(GeneratedFolder, hintNameOf(scriptPath).Replace('/', '\\'));
            if (!File.Exists(source))
            {
                continue;
            }

            string destination = Path.Combine(Path.GetDirectoryName(scriptPath),
                Path.GetFileNameWithoutExtension(scriptPath) + ".CodeBehind.cs");
            string folder = Path.GetDirectoryName(destination);
            string text = Regex.Replace(File.ReadAllText(source), "^(#line \\d+ \")([^\"]+)(\")",
                match => match.Groups[1].Value + relativeTo(folder, match.Groups[2].Value) + match.Groups[3].Value,
                RegexOptions.Multiline);
            if (!File.Exists(destination) || File.ReadAllText(destination) != text)
            {
                File.WriteAllText(destination, text, new UTF8Encoding(encoderShouldEmitUTF8Identifier: true));
            }
        }
      ]]>