Public/Compare-IntuneBackupFile.ps1
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function Compare-IntuneBackupFile() { <# .SYNOPSIS Compare two Intune Backup Files for changes. .DESCRIPTION Compare two Intune Backup Files for changes. .PARAMETER ReferenceFilePath Any Intune Backup file. .PARAMETER DifferenceFilePath Latest Intune Backup file, that matches the Intune Configuration (e.g. Device Compliance Policy, Device Configuration Profile or Device Management Script). .EXAMPLE Compare-IntuneBackupFile -ReferenceFilePath 'C:\temp\IntuneBackup\Device Configurations\Windows - Endpoint Protection.json' -DifferenceFilePath 'C:\temp\IntuneBackupLatest\Device Configurations\Windows - Endpoint Protection.json' .NOTES The DifferenceFilePath should point to the latest Intune Backup file, as it might contain new properties. #> param( [Parameter(Mandatory = $true)] [string]$ReferenceFilePath, [Parameter(Mandatory = $true)] [string]$DifferenceFilePath ) try { $backupFile = Get-Content -LiteralPath $ReferenceFilePath -ErrorAction Stop | ConvertFrom-Json } catch { Write-Error -Message "Could not retrieve ReferenceFile from the ReferenceFilePath location." -ErrorAction Stop } try { $latestBackupFile = Get-Content -LiteralPath $DifferenceFilePath -ErrorAction Stop | ConvertFrom-Json } catch { Write-Error -Message "Could not retrieve DifferenceFile from the DifferenceFilePath location." -ErrorAction Stop } function Invoke-FlattenBackupObject() { param( [Parameter (Mandatory = $true)] [PSCustomObject]$PSCustomObject, [Parameter (Mandatory = $false)] [string]$KeyName ) $flatObject = New-Object -TypeName PSObject $psCustomObject.PSObject.Properties | ForEach-Object { if ($null -eq $($_.Value)) { if ($KeyName) { $flatObject | Add-Member -NotePropertyName "$KeyName-$($_.Name)" -NotePropertyValue 'null' } else { $flatObject | Add-Member -NotePropertyName $_.Name -NotePropertyValue 'null' } } else { if ($($_.Value).GetType().Name -eq 'PSCustomObject') { Invoke-FlattenBackupObject -PSCustomObject $_.Value -KeyName $_.Name } else { if ($KeyName) { $flatObject | Add-Member -NotePropertyName "$KeyName-$($_.Name)" -NotePropertyValue $_.Value } else { $flatObject | Add-Member -NotePropertyName $_.Name -NotePropertyValue $_.Value } } } } return $flatObject } $flattenBackupArray = Invoke-FlattenBackupObject -PSCustomObject $backupFile $flattenLatestBackupArray = Invoke-FlattenBackupObject -PSCustomObject $latestBackupFile $flattenBackupObject = New-Object -TypeName PSObject for ($i=0; $i -le $flattenBackupArray.Length; $i++) { foreach ($property in $flattenBackupArray[$i].PSObject.Properties) { $flattenBackupObject | Add-Member -NotePropertyName $property.Name -NotePropertyValue $property.Value } } $flattenLatestBackupObject = New-Object -TypeName PSObject for ($i=0; $i -le $flattenLatestBackupArray.Length; $i++) { foreach ($property in $flattenLatestBackupArray[$i].PSObject.Properties) { $flattenLatestBackupObject | Add-Member -NotePropertyName $property.Name -NotePropertyValue $property.Value } } $backupComparison = foreach ($latestBackupFileProperty in $flattenBackupObject.PSObject.Properties.Name) { $compareBackup = Compare-Object -ReferenceObject $flattenBackupObject -DifferenceObject $flattenLatestBackupObject -Property $latestBackupFileProperty if ($compareBackup.SideIndicator) { # If the property exists in both Intune Backup Files if ($null -ne $flattenBackupObject.$latestBackupFileProperty) { New-Object PSCustomObject -Property @{ 'Property' = $latestBackupFileProperty 'Old value' = $flattenBackupObject.$latestBackupFileProperty 'New value' = $flattenLatestBackupObject.$latestBackupFileProperty } } # If the property only exists in the latest Intune Backup File else { New-Object PSCustomObject -Property @{ 'Property' = $latestBackupFileProperty 'Old value' = $null 'New value' = $flattenLatestBackupObject.$latestBackupFileProperty } } } } return $backupComparison } |