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Adds a menu option to create a copy of the current Unity project using symbolic links, Windows only, usually needs admin
using UnityEngine;
using UnityEditor;
using System.Collections;
using System.Runtime.InteropServices;
internal static class SymbolicLink {
[DllImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.I1)]
public static extern bool CreateSymbolicLink(string lpSymlinkFileName, string lpTargetFileName, SymLinkFlag dwFlags);
internal enum SymLinkFlag {
File = 0,
Directory = 1
public class SymbolicProjectMenu {
[MenuItem("Edit/Create Symbolic Project")]
static void CreateSymbolicProject() {
string path = EditorUtility.SaveFolderPanel("Folder", "", "Project");
string targetAssetPath = Application.dataPath;
string targetSettingsPath = targetAssetPath.Remove(targetAssetPath.Length - "Assets".Length) + "ProjectSettings";
string symAssetPath = path + "/Assets";
string symProjectSettings = path + "/ProjectSettings";
bool created = SymbolicLink.CreateSymbolicLink(symAssetPath, targetAssetPath, SymbolicLink.SymLinkFlag.Directory);
created &= SymbolicLink.CreateSymbolicLink(symProjectSettings, targetSettingsPath, SymbolicLink.SymLinkFlag.Directory);
if (created) {
EditorUtility.DisplayDialog("Success!", "Symbolic 'Assets' and 'Project Settings' folders were created at " + path, "Awesome! Cheers Mark");
} else {
EditorUtility.DisplayDialog("Something Went Wrong!", "Couldn't create the link, you may need to run as Administrator", "OK");
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