Count mapping size per application

mapping-size-calc.ps1

$doc = Get-Content .\mapping.txt -raw

$json = $doc.ToLower() | ConvertFrom-Json

function calc-num-properties($o)
{
    $count = 0

    if ($o)
    {
        $o | gm -membertype noteproperty | % {
            $pn = $_.name
            $count += 1 + (calc-num-properties ($o."$pn".properties))
        }
    }

    return $count
}

$json.'serilog-2017.05'.mappings | gm -memberType noteproperty | select -expand name | % {
    new-object psobject -property @{
        name = $_
        count = calc-num-properties $json.'serilog-2017.05'.mappings."$_".properties
    }
} | sort -property count -descending