installation.ps1

$installationPath = "$($Env:Programfiles)"
$currentPath = "$(Get-Location)"
$programPath = $currentPath + "\dist\search"
$verifyPath = $installationPath + "\search\"

If (Test-Path $verifyPath) {
  try {
    Remove-Item $verifyPath -Recurse
    Write-Host "Previous installation removed" -ForegroundColor Green
  } catch {
    Write-Host "Could not remove the previous installation" -ForegroundColor Red
    Exit 1
  }

  if (Test-Path $programPath) {
    try {
      Copy-Item -Path $programPath -Destination $verifyPath -Recurse
      Write-Host "moved program" -ForegroundColor Green
    } catch {
      Write-Host "Could not move the program" -ForegroundColor Red
      Exit 1
    }
    
    try {
      $oldpath = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH).path
      
      if ($oldpath.split(';') -like $verifyPath) {
        Write-Host "the environment variable already exists" -ForegroundColor Cyan
      } else {
        $newpath = "$oldpath;$verifyPath"
        Set-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH -Value $newpath
        Write-Host "Environment variable created" -ForegroundColor Green
      }
    } catch {
      Host "We could not create your environment variable you will have to do it manually." -ForegroundColor Red
    }
  } else {
    Write-Host "program files do not exist" -ForegroundColor Red
    Exit 1
  }
} Else {
  if (Test-Path $programPath) {
    try {
      Copy-Item -Path $programPath -Destination $verifyPath -Recurse
      Write-Host "moved program" -ForegroundColor Green
    } catch {
      Write-Host "Could not move the program" -ForegroundColor Red
      Exit 1
    }
    
    try {
      $oldpath = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH).path
      
      if ($oldpath.split(';') -like $verifyPath) {
        Write-Host "the environment variable already exists" -ForegroundColor Cyan
      } else {
        $newpath = "$oldpath;$verifyPath"
        Set-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH -Value $newpath
        Write-Host "Environment variable created" -ForegroundColor Green
      }
    } catch {
      Host "We could not create your environment variable you will have to do it manually." -ForegroundColor Red
    }
  } else {
    Write-Host "program files do not exist" -ForegroundColor Red
    Exit 1
  }
}

Write-Host "Installation process completed" -ForegroundColor Cyan