Try to run commands before elevating them. Not tested and I have neve…

…r touched golang. Checking required to test on a different pc.

.gitattributes

@@ -1 +1,17 @@
-* text eol=lf
+* text eol=crlf
+
+# Denote files as text files.
+*.go text
+*.cmd text
+*.bat text
+*.batch txt
+*.vbs txt
+*.vb txt
+
+.gitattributes text eol=crlf
+
+# Denote all files that are truly binary and should not be modified.
+*.dll
+*.exe
+*.e32
+*.iss

bin/elevate.cmd

@@ -0,0 +1,5 @@
+@setlocal
+@echo off
+set CMD=%*
+set APP=%1
+start wscript //nologo "%~dpn0.vbs" %*

bin/elevate.vbs

@@ -0,0 +1,13 @@
+Set Shell = CreateObject("Shell.Application")
+Set WShell = WScript.CreateObject("WScript.Shell")
+Set ProcEnv = WShell.Environment("PROCESS")
+
+cmd = ProcEnv("CMD")
+app = ProcEnv("APP")
+args= Right(cmd,(Len(cmd)-Len(app)))
+
+If (WScript.Arguments.Count >= 1) Then
+  Shell.ShellExecute app, args, "", "runas", 0
+Else
+  WScript.Quit
+End If

bin/install.cmd

@@ -1,20 +1,67 @@
-@echo off
-set /P NVM_PATH="Enter the absolute path where the zip file is extracted/copied to: "
+@ECHO OFF & CLS & ECHO.
+
+IF "%1"=="" (
+  set /P NVM_PATH="Enter the absolute path where the zip file is extracted/copied to: "
+) ELSE (
+  set NVM_PATH=%1
+)
+mkdir %NVM_PATH% && echo "%NVM_PATH% was created!" || echo "%NVM_PATH% was unable to be created."
+
+set DRIVE=%NVM_PATH:~0,2%
+IF "%DRIVE:~1,1%"==":" (
+  %DRIVE%
+)
+
+REM Sets PROGRAMS directory as NVM_PATH parent directory
+REM   Example: "C:\Programs" from "C:\Programs\nvm" (if %NVM_PATH% is equal to "C:\Programs\nvm")
+REM
+SET CURRENTDIR=%CD%
+CD %NVM_PATH%
+CD ..
+SET PROGRAMS=%CD%
+CD %CURRENTDIR%
+
+REM Check if running with admin rights (https://stackoverflow.com/a/12264592/458321)
+NET FILE 1>NUL 2>NUL & IF ERRORLEVEL 1 (set ISADMIN=1)
+
+IF "%ISADMIN%"=="1" (
+  GOTO ADMIN
+) ELSE (
+  GOTO NONADMIN
+)
+
+:ADMIN
+  REM Set environment variables to machine level (admin rights required)
+  set SETENVVAR=set /M
+GOTO FINISH
+:NONADMIN
+  echo "Check if nvm path requires admin writes to create file" > %NVM_PATH%\checkpermissions.txt || elevate.cmd install.cmd %NVM_PATH%
+  REM Set environment variables to local user (no admin rights required)
+  set SETENVVAR=set
+:FINISH
+
+%SETENVVAR% NVM_PATH=%NVM_PATH%
+
 set NVM_HOME=%NVM_PATH%
-set NVM_SYMLINK=C:\Program Files\nodejs
-setx /M NVM_HOME "%NVM_HOME%"
-setx /M NVM_SYMLINK "%NVM_SYMLINK%"
+%SETENVVAR% NVM_HOME=%NVM_PATH%
+
+set NVM_SYMLINK=%PROGRAMS%\nodejs
+%SETENVVAR% NVM_SYMLINK=%PROGRAMS%\nodejs
 
-for /f "skip=2 tokens=2,*" %%A in ('reg query "HKLM\System\CurrentControlSet\Control\Session Manager\Environment" /v Path 2^>nul') do (
-  setx /M PATH "%%B;%%NVM_HOME%%;%%NVM_SYMLINK%%"
+IF "%ISADMIN%"=="1" (
+  for /f "skip=2 tokens=2,*" %%A in ('reg query "HKLM\System\CurrentControlSet\Control\Session Manager\Environment" /v Path 2^>nul') do (
+    %SETENVVAR% PATH "%%B;%%NVM_HOME%%;%%NVM_SYMLINK%%"
+  )
+) ELSE (
+  echo.%PATH%|findstr /C:"%NVM_PATH%" >nul 2>&1 || %SETENVVAR% PATH=%PATH%;%NVM_PATH%
 )
 
 if exist "%SYSTEMDRIVE%\Program Files (x86)\" (
-set SYS_ARCH=64
+  set SYS_ARCH=64
 ) else (
-set SYS_ARCH=32
+  set SYS_ARCH=32
 )
 (echo root: %NVM_HOME% && echo path: %NVM_SYMLINK% && echo arch: %SYS_ARCH% && echo proxy: none) > %NVM_HOME%\settings.txt
 
-notepad %NVM_HOME%\settings.txt
+start "" %NVM_HOME%\settings.txt || explorer %NVM_HOME%\settings.txt || notepad %NVM_HOME%\settings.txt
 @echo on

bin/tryelevate.cmd

@@ -0,0 +1,7 @@
+@setlocal
+@echo off
+set CMD=%*
+set APP=%1
+
+REM tries to run any script passed first without admin rights
+%* || start wscript //nologo "%~dpn0.vbs" %*

bin/tryelevate.vbs

@@ -0,0 +1,13 @@
+Set Shell = CreateObject("Shell.Application")
+Set WShell = WScript.CreateObject("WScript.Shell")
+Set ProcEnv = WShell.Environment("PROCESS")
+
+cmd = ProcEnv("CMD")
+app = ProcEnv("APP")
+args= Right(cmd,(Len(cmd)-Len(app)))
+
+If (WScript.Arguments.Count >= 1) Then
+  Shell.ShellExecute app, args, "", "runas", 0
+Else
+  WScript.Quit
+End If