Powershell : Backup SQL SP,View, Function read from text file

BackoutSQLObject.ps1

# types : vw-views, sp-stored procs, fn - function, tg - triggerparam($serverName, $fileName, $type, $location)[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SMO") | out-null $dbName = "GlobalSTORE"$srv = new-object Microsoft.SqlServer.Management.Smo.Server($serverName) $db = $srv.Databases.Item($dbName) $folderLocation = $location$type = $type.ToString().ToUpper()
function Alert {    
  param($m1,$m2,$m3,$m4,$m5)    
  Write-Host $m1 $m2 $m3 $m4 $m5
}
function GetBackupLocation {    
  if ($type -eq "VW") {
    $folderLocation = $location + "\Views\";    
  } elseif ($type -eq "SP") {
    $folderLocation = $location + "\StoredProcedures\";    
  } elseif ($type -eq "FN") {
    $folderLocation = $location + "\Functions\";    
  } elseif ($type -eq "TG") {
    $folderLocation = $location + "\Triggers\";    
  } else {
    $folderLocation = $location;    
  }    
  
  if(!( Test-Path $folderLocation)) {
    New-Item -ItemType Directory -Force -Path $folderLocation | Out-Null    
  }        
  return $folderLocation
}
function GetProcess {
  if ($type -eq "VW") {
    $proc = $db.Views | ?{ $_.Name -eq $objectName}    
  } elseif ($type -eq "SP") {
    $proc = $db.StoredProcedures | ?{ $_.Name -eq $objectName}    
  } elseif ($type -eq "FN") {
      $proc = $db.UserDefinedFunctions | ?{ $_.Name -eq $objectName}    
  } elseif ($type -eq "TG") { 
      $proc = $db.Triggers | ?{ $_.Name -eq $objectName}    
  } else {
      $proc = $null;    
  }    
  
  return $proc}

try{    
  $reader = [System.IO.File]::OpenText($fileName)    
  while($null -ne ($objectName = $reader.ReadLine())) {
    Alert "Backing up  " $objectName        
    $proc = GetProcess                
    if ($proc -eq $null) {
      Alert "WARNING : "  $objectName  " NOT FOUND"        
    } else {
        $retval = $proc.ScriptHeader($true) + $proc.TextBody                         # create backup folder if not exist            
        if(!( Test-Path $location)) {
          New-Item -ItemType Directory -Force -Path $location | Out-Null            
        } 
        $folderLocation = GetBackupLocation
        $filename = $folderLocation + "\" + $objectName + ".sql" 
        $retval > $filename        
     }      
  }}
  finally {    $reader.Close()}