PS to backup & restore IIS

 
Import-Module WebAdministration
 
function test-variable
    {
        # return $false if variable:\$name is missing or $null
        param( [string]$name )
        $isMissingOrNull = (!(test-path ('variable:'+$name)) -or ((get-variable -name $name -value) -eq $null))
        return !$isMissingOrNull
    }
 
$operation = $args[0]
$restoreloc = $args[1]
 
# If operation was not passed we will force 0 to show instructions
if (!(test-variable "operation")) {$operation ="0"}
 
if ($operation -eq 3)
    {
        if (!(test-variable "restoreloc"))
            {
                $operation ="0"
            }
    }
 
clear
 
$CurrentDate = Get-Date -format M-d-yyyy_hhmmss
$BackupName = "IIS_$($CurrentDate)"
 
# Backup Web Configuration
# Backup will get created in C:\Windows\System32\inetsrv\backup
# Backup-WebConfiguration -Name  $BackupName
 
# Restore Web Configuration
# Restore-WebConfiguration -Name IIS_11-10-2015_120802
 
write-host "IIS Backup/Restore"
 
switch ($operation)
    {
        "0" {
            "`nBackup / Restore Process"
            Write-Host "    To backup run:`n        IISBackup.ps1 1`n`n    To list backups run:`n        IISBackup.ps1 2`n`n    To restore run:`n        IISBackup.ps1 3 <Backup Name>"
        }
        "1" {
            "Backup Process Selected"
            Backup-WebConfiguration -Name  $BackupName
 
            # Write Documentation - Start
            $sites = @{Expression={$_.Name};Label="Site Name"}, ` @{Expression={$_.applicationPool};Label="Site App Pool";}, ` @{Expression={$_.PhysicalPath};Label="Site Physical Path";}
 
            dir IIS:\Sites | Format-Table $sites -AutoSize > $("C:\Windows\System32\inetsrv\backup\$BackupName\IIS.txt")
 
            "Web Config File Paths:" >> $("C:\Windows\System32\inetsrv\backup\$BackupName\IIS.txt")
 
            ForEach($item in (dir IIS:\Sites))
                {
                    $item.Name >> $("C:\Windows\System32\inetsrv\backup\$BackupName\IIS.txt")
                    $filePath = $item.PhysicalPath
                    $fileName = "web.config"
                    Get-ChildItem -Recurse -Force $filePath -ErrorAction SilentlyContinue | Where-Object { ( $_.Name -like "*$fileName*") } | Select-Object FullName | format-Table * -AutoSize -HideTableHeaders >> $("C:\Windows\System32\inetsrv\backup\$BackupName\IIS.txt")
                }
            # Write Documentation - Stop
 
        }
        "2" {
            "Backups"
            $currentdirectorypath = Split-Path (Get-Variable MyInvocation).Value.MyCommand.Path
            cd "C:\Windows\System32\inetsrv\backup"
            ls
            cd $currentdirectorypath
        }
        "3" {
            "Restore Process Selected"           
            Write-host "Restoring $($restoreloc)"
            Restore-WebConfiguration -Name $restoreloc
        }
    }