Powershell script for detecting conflicts between Witcher 3 mods

conflicts.ps1

# Usage
# 1. Download quickbms.exe and witcher3.bms (The ScriptMerger files are outdated):
#   http://aluigi.altervista.org/papers/quickbms.zip
#   http://aluigi.altervista.org/bms/witcher3.bms
# 2. Place this file into a directory next to quickbms.exe and witcher3.bms
# 3. Change $witcherPath to your Witcher directory.
#
# To show conflicts between two (or more) mods, run `./conflicts.ps1 <mod1> <mod2> <...>` inside the Powershell console.
#   For example: `.\conflicts.ps1 modHDReworkedProject modBrothersInArms`
# To list every conflicting mod file, run this script with only one mod as an argument.
#   For example: `.\conflicts.ps1 modBrothersInArms`

$witcherPath = "C:\Program Files (x86)\Steam\steamapps\common\The Witcher 3"

$outputs = New-Object System.Collections.Generic.List[System.Object]
$modCount = $args.Count
$args | ForEach-Object {
	$arg = $_
	$output = (./quickbms.exe -l -F "mods/$arg/content/blob0.bundle" ".\witcher3.bms" "$witcherPath" 2>$null)
	$output = $output.ForEach({ ($_ -split '\s+')[3] })
	$outputs.Add($output)
	# Comapare agains every other mods if only one argument is provided
	if ($modCount -eq 1) {
		Write-Host "Looking for conflicts. This may take a while!`n"
		$mods = Get-ChildItem -Path "$witcherPath/mods" -Directory | Select-Object -ExpandProperty Name
		$mods | ForEach-Object {
			$mod = $_
			$modOutput = (./quickbms.exe -l -F "mods/$mod/content/blob0.bundle,!mods/$arg/content/blob0.bundle" ".\witcher3.bms" "$witcherPath" 2>$null)
			$modOutput = $modOutput.ForEach({ ($_ -split '\s+')[3] })
			$conflicts = Compare-Object -ReferenceObject $output -DifferenceObject $modOutput -PassThru -ExcludeDifferent | Out-String
			if ($conflicts.Length -gt 0) { Write-Host "$mod`n$conflicts"}
		}
	}
}
if ($modCount -gt 1) { Compare-Object @outputs -PassThru -ExcludeDifferent }