Compare two items and copy missing children using Powershell

Question

Environment: Sitecore 9.2 & SXA 1.9

Scenario: I have two different items and I would like to compare them and copy the missing children from one item to another using Powershell script.

• Item A (DifferenceObject) - If empty copy all the children from Item B and if few children are missing then copy them from Item B without disturbing the other children of Item A.

• Item B (ReferenceObject) - This item can have grandchildren as well.

This is the script that I am using but while running this script on the same item twice, it is making duplicate copies of children instead of ignoring them.

$itemA = Get-ChildItem -Path "/sitecore/home/itemA"
$itemB = Get-ChildItem -Path "/sitecore/home/itemB"

$diffs = Compare-Object -ReferenceObject $itemB -DifferenceObject $itemA | 
Where-Object { $_.SideIndicator -eq "<=" } | Select-Object -ExpandProperty InputObject

$diffs | Copy-Item -Destination $itemA.ID -Recurse

How to achieve this functionality? Thanks.

Answer 1

I was able to copy child items from one folder to another using this simple script:

$targetPath = "/sitecore/content/home/test2/"

$itemAChildren = Get-ChildItem -Path "/sitecore/content/home/test1" -recurse
$itemBChildren = Get-ChildItem -Path "/sitecore/content/home/test2" -recurse

foreach ($itemAChild in $itemAChildren) {
    $exists = 0
    $createpath = $targetPath

        foreach ($itemBChild in $itemBChildren) {
            if ($itemAChild.Name -eq $itemBChild.Name) {
                $exists = 1
            }
        }
        
        if ($itemAChild.Parent.Paths.Path -eq "/sitecore/content/Home/Test1") {
            $createpath = $targetPath
        }
        else
        {
            $createpath = $itemAChild.Paths.Path
            $createpath = $createpath -replace "/sitecore/content/Home/Test1", "/sitecore/content/home/test2"
        }  
            
        if($exists -eq 0) {
            Copy-Item -Path $itemAChild.ItemPath -Destination $createpath
        }
    }