Functions/Compare-ObjectProperty.ps1
|
function Compare-ObjectProperty { <# .SYNOPSIS Compares two objects property by property. .DESCRIPTION Compares two objects property by property. A simple Compare-Object only compares those properties with the same name in the two objects. .PARAMETER ReferenceObject The first object to compare .PARAMETER DifferenceObject The second object to compare .EXAMPLE $a = New-Object psobject -Prop ([ordered] @{ One = 1; Two = 2}) $b = New-Object psobject -Prop ([ordered] @{ One = 1; Two = 2; Three = 3}) Compare-Object $a $b # would return $null because it only compares the properties that have common names but Compare-ObjectProperty $a $b # would return below because it compares the two objects property by property PropertyName RefValue DiffValue ------------ -------- --------- Three 3 .OUTPUTS [psobject] .LINK Compare-Object #> #region Parameters [CmdletBinding(ConfirmImpact = 'None')] [OutputType('psobject')] Param( [Parameter(Mandatory, HelpMessage = 'First object to compare', Position = 0)] [PSObject] $ReferenceObject, [Parameter(Mandatory, HelpMessage = 'Second object to compare', Position = 1)] [PSObject] $DifferenceObject ) #endregion Parameters begin { Write-Verbose -Message "Starting [$($MyInvocation.Mycommand)]" $objprops = New-Object -TypeName System.Collections.ArrayList } process { $null = $objprops.AddRange(($ReferenceObject | Get-Member -MemberType Property, NoteProperty).Name) $null = $objprops.AddRange(($DifferenceObject | Get-Member -MemberType Property, NoteProperty).Name) $objprops = $objprops | Sort-Object | Select-Object -Unique $diffs = New-Object -TypeName System.Collections.ArrayList foreach ($objprop in $objprops) { $diff = Compare-Object -ReferenceObject $ReferenceObject -DifferenceObject $DifferenceObject -Property $objprop if ($diff) { $diffprops = @{ PropertyName = $objprop RefValue = ($diff | Where-Object { $_.SideIndicator -eq '<=' } | ForEach-Object $($objprop)) DiffValue = ($diff | Where-Object { $_.SideIndicator -eq '=>' } | ForEach-Object $($objprop)) } $null = $diffs.Add((New-Object -TypeName PSObject -Property $diffprops)) } } if ($diffs) { $diffs | Select-Object -Property PropertyName, RefValue, DiffValue } } end { Write-Verbose -Message "Ending [$($MyInvocation.Mycommand)]" } } |