Windows - OpenSSH & GIT

Set-GIT_SSH_COMMAND.ps1

# Filename: Set-GIT_SSH_COMMAND.ps1
# Brian Dwyer - 1/20/18

# GIT_SSH_COMMAND = '"C:\Program Files\OpenSSH-Win64\ssh.exe"'

# ***USAGE***
# To Setup the GIT_SSH_COMMAND Variable
# ./Set-GIT_SSH_COMMAND.ps1 set

# To Remove the GIT_SSH_COMMAND Variable
# ./Set-GIT_SSH_COMMAND.ps1 unset

# System-Wide Environmental Variables
$System_Vars='HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\Environment'

# User-Specific Environmental Variables
$User_Vars='HKCU:\Environment'

# Check if SSH is installed
If (!$env:Path.Contains('OpenSSH'))
  {
    echo ""
    echo "/======| Error: OpenSSH does not seem to be installed. |=====\"
    echo ""
    pause
    exit
    }

# Get SSH Installation Directory
$ssh_DIR = $env:Path.Split(';') -like "*OpenSSH*" | Out-String -Stream

# Registry Property Key/Value
$Reg_Key='GIT_SSH_COMMAND'
$Reg_Value="'$ssh_DIR\ssh.exe'"


# Setup
If ( $args[0] -eq 'set' )
  {
  echo "/======| Setting up Registry Key... |=====\"
  Set-ItemProperty $User_Vars -Name $Reg_Key -Value $Reg_Value
  pause
  }
Elseif ( $args[0] -eq 'unset' )
  {
  echo "/======| Removing Registry Key... |=====\"
  Remove-ItemProperty $User_Vars -Name $Reg_Key
  pause
  }
 Else
  {
  echo '-------------------------------------------------'
  echo "|*|-Set GIT_SSH_COMMAND Environmental Variable-|*|"
  echo '-------------------------------------------------'
  echo "|     Use 'set' or 'unset' to control script     |"
  echo '-------------------------------------------------'
  }