Diff checking files with PowerShell

PowerShell-File-Checks.ps1

#Create catalog

New-FileCatalog -Path C:\Users\[user]\Downloads\a -CatalogFilePath C:\Users\[user]\Downloads\SourceCatalog.cat -CatalogVersion 2.0


# Simple diff test

Test-FileCatalog -Detailed -Path C:\Users\[user]\Downloads\b -CatalogFilePath C:\Users\[user]\Downloads\SourceCatalog.cat


# Detailed diff tests

$params = @{
    Path = 'C:\Users\[user]\Downloads\b'
    CatalogFilePath = 'C:\Users\[user]\Downloads\SourceCatalog.cat'
    Detailed = $true
}
$result = Test-FileCatalog @params

#List added files
Write-Output "List added files"
$result.PathItems.Keys | Where-Object { -not
$result.CatalogItems.ContainsKey($_) }

#List removed files
Write-Output ""
Write-Output "List removed files"
$result.CatalogItems.Keys | Where-Object { -not
$result.PathItems.ContainsKey($_) }

#List changed files
Write-Output ""
Write-Output "List changed files"
$result.PathItems.Keys | Where-Object { $result.CatalogItems[$_] -ne
$result.PathItems[$_]}