denest.ps1

#folder denesting script for powershell
#also deletes empty folders
#you'll have to run it n times for n levels of nested folders
#but it outputs the number of folders denested and deleted

#this works for 99% of scenarios, but if you run into an edge case... sorry!
function DeNestFolders {
	$ErrorActionPreference = "Stop"
	echo "denesting folders!!"
	$denests = 0
	ls -r -directory | %{
		$CurrentPath = $_.FullName
		$ThisLs = ls -LiteralPath $CurrentPath
		If($ThisLs.Count -gt 0) {
			If(
			($ThisLs[0].GetType().Name -eq "DirectoryInfo") -and
			($ThisLs.Count -eq 1)) {
				$denests += 1
				echo "$($ThisLs[0].FullName) is nested, denesting"
				cp -LiteralPath $ThisLs[0].FullName "$CurrentPath\..\" -recurse -force
				rm -LiteralPath $ThisLs[0].FullName -recurse
			}
		}
	}
	echo "finished denesting, $denests folders denested"
	$removals = 0
	echo "removing empty folders!"
	ls -r -directory | %{
		$CurrentPath = $_.FullName
		$ThisLs = ls -LiteralPath $CurrentPath
		if(($ThisLs).Count -eq 0) {
			$removals += 1
			echo "$CurrentPath is empty, removing"
			rm -LiteralPath $CurrentPath
		}
	}
	echo "finished removing empty folders, $removals folders removed"
}