LSDS.psm1

<#
.SYNOPSIS
This script display space left on disk and list all subdirectory of current directory and show the size of each of them.
Inspired from  ERIC COBB's script
#>

$ErrorActionPreference = 'silentlycontinue'

function LSDS {

    $disk = (Get-Location).Drive
    "Disk size : " + "{0:N2}" -f ($disk.Used / 1GB) + " GB" + "  --  Free space : " + "{0:N2}" -f ($disk.Free / 1GB) + " GB"

    $startDirectory = Get-Location

    $directoryItems = Get-ChildItem $startDirectory | Where-Object {$_.PSIsContainer -eq $true} | Sort-Object

    foreach ($i in $directoryItems)
    {
        $subFolderItems = Get-ChildItem $i.FullName -recurse -force | Where-Object {$_.PSIsContainer -eq $false} | Measure-Object -property Length -sum | Select-Object Sum
        if ( $subFolderItems.sum / 1GB -gt 0.01)
        {
            $i.FullName + " -- " + "{0:N2}" -f ($subFolderItems.sum / 1GB) + " GB"
        }
        else
        {
            $i.FullName + " -- " + "{0:N2}" -f ($subFolderItems.sum / 1MB) + " MB"
        }
    }
}
Export-ModuleMember -Function LSDS