Public/Resolve-Error.ps1


# This function has been copied from the app deployment toolkit
Function Resolve-Error {
    <#
    .SYNOPSIS
        Enumerate error record details.
    .DESCRIPTION
        Enumerate an error record, or a collection of error record, properties. By default, the details for the last error will be enumerated.
    .PARAMETER ErrorRecord
        The error record to resolve. The default error record is the latest one: $global:Error[0]. This parameter will also accept an array of error records.
    .PARAMETER Property
        The list of properties to display from the error record. Use "*" to display all properties.
        Default list of error properties is: Message, FullyQualifiedErrorId, ScriptStackTrace, PositionMessage, InnerException
    .PARAMETER GetErrorRecord
        Get error record details as represented by $_.
    .PARAMETER GetErrorInvocation
        Get error record invocation information as represented by $_.InvocationInfo.
    .PARAMETER GetErrorException
        Get error record exception details as represented by $_.Exception.
    .PARAMETER GetErrorInnerException
        Get error record inner exception details as represented by $_.Exception.InnerException. Will retrieve all inner exceptions if there is more than one.
    .EXAMPLE
        Resolve-Error
    .EXAMPLE
        Resolve-Error -Property *
    .EXAMPLE
        Resolve-Error -Property InnerException
    .EXAMPLE
        Resolve-Error -GetErrorInvocation:$false
    .NOTES
    .LINK
        http://psappdeploytoolkit.com
    #>

        [CmdletBinding()]
        Param (
            [Parameter(Mandatory=$false,Position=0,ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]
            [AllowEmptyCollection()]
            [array]$ErrorRecord,
            [Parameter(Mandatory=$false,Position=1)]
            [ValidateNotNullorEmpty()]
            [string[]]$Property = ('Message','InnerException','FullyQualifiedErrorId','ScriptStackTrace','PositionMessage'),
            [Parameter(Mandatory=$false,Position=2)]
            [switch]$GetErrorRecord = $true,
            [Parameter(Mandatory=$false,Position=3)]
            [switch]$GetErrorInvocation = $true,
            [Parameter(Mandatory=$false,Position=4)]
            [switch]$GetErrorException = $true,
            [Parameter(Mandatory=$false,Position=5)]
            [switch]$GetErrorInnerException = $true
        )
        
        Begin {
            ## If function was called without specifying an error record, then choose the latest error that occurred
            If (-not $ErrorRecord) {
                If ($global:Error.Count -eq 0) {
                    #Write-Warning -Message "The `$Error collection is empty"
                    Return
                }
                Else {
                    [array]$ErrorRecord = $global:Error[0]
                }
            }
            
            ## Allows selecting and filtering the properties on the error object if they exist
            [scriptblock]$SelectProperty = {
                Param (
                    [Parameter(Mandatory=$true)]
                    [ValidateNotNullorEmpty()]
                    $InputObject,
                    [Parameter(Mandatory=$true)]
                    [ValidateNotNullorEmpty()]
                    [string[]]$Property
                )
                
                [string[]]$ObjectProperty = $InputObject | Get-Member -MemberType '*Property' | Select-Object -ExpandProperty 'Name'
                ForEach ($Prop in $Property) {
                    If ($Prop -eq '*') {
                        [string[]]$PropertySelection = $ObjectProperty
                        Break
                    }
                    ElseIf ($ObjectProperty -contains $Prop) {
                        [string[]]$PropertySelection += $Prop
                    }
                }
                Write-Output -InputObject $PropertySelection
            }
            
            # Initialize variables to avoid error if 'Set-StrictMode' is set
            $LogErrorRecordMsg = $null
            $LogErrorInvocationMsg = $null
            $LogErrorExceptionMsg = $null
            $LogErrorMessageTmp = $null
            $LogInnerMessage = $null
        }
        Process {
            If (-not $ErrorRecord) { Return }
            ForEach ($ErrRecord in $ErrorRecord) {
                ## Capture Error Record
                If ($GetErrorRecord) {
                    [string[]]$SelectedProperties = & $SelectProperty -InputObject $ErrRecord -Property $Property
                    $LogErrorRecordMsg = $ErrRecord | Select-Object -Property $SelectedProperties
                }
                
                ## Error Invocation Information
                If ($GetErrorInvocation) {
                    If ($ErrRecord.InvocationInfo) {
                        [string[]]$SelectedProperties = & $SelectProperty -InputObject $ErrRecord.InvocationInfo -Property $Property
                        $LogErrorInvocationMsg = $ErrRecord.InvocationInfo | Select-Object -Property $SelectedProperties
                    }
                }
                
                ## Capture Error Exception
                If ($GetErrorException) {
                    If ($ErrRecord.Exception) {
                        [string[]]$SelectedProperties = & $SelectProperty -InputObject $ErrRecord.Exception -Property $Property
                        $LogErrorExceptionMsg = $ErrRecord.Exception | Select-Object -Property $SelectedProperties
                    }
                }
                
                ## Display properties in the correct order
                If ($Property -eq '*') {
                    # If all properties were chosen for display, then arrange them in the order the error object displays them by default.
                    If ($LogErrorRecordMsg) { [array]$LogErrorMessageTmp += $LogErrorRecordMsg }
                    If ($LogErrorInvocationMsg) { [array]$LogErrorMessageTmp += $LogErrorInvocationMsg }
                    If ($LogErrorExceptionMsg) { [array]$LogErrorMessageTmp += $LogErrorExceptionMsg }
                }
                Else {
                    # Display selected properties in our custom order
                    If ($LogErrorExceptionMsg) { [array]$LogErrorMessageTmp += $LogErrorExceptionMsg }
                    If ($LogErrorRecordMsg) { [array]$LogErrorMessageTmp += $LogErrorRecordMsg }
                    If ($LogErrorInvocationMsg) { [array]$LogErrorMessageTmp += $LogErrorInvocationMsg }
                }
                
                If ($LogErrorMessageTmp) {
                    $LogErrorMessage = 'Error Record:'
                    $LogErrorMessage += "`n-------------"
                    $LogErrorMsg = $LogErrorMessageTmp | Format-List | Out-String
                    $LogErrorMessage += $LogErrorMsg
                }
                
                ## Capture Error Inner Exception(s)
                If ($GetErrorInnerException) {
                    If ($ErrRecord.Exception -and $ErrRecord.Exception.InnerException) {
                        $LogInnerMessage = 'Error Inner Exception(s):'
                        $LogInnerMessage += "`n-------------------------"
                        
                        $ErrorInnerException = $ErrRecord.Exception.InnerException
                        $Count = 0
                        
                        While ($ErrorInnerException) {
                            [string]$InnerExceptionSeperator = '~' * 40
                            
                            [string[]]$SelectedProperties = & $SelectProperty -InputObject $ErrorInnerException -Property $Property
                            $LogErrorInnerExceptionMsg = $ErrorInnerException | Select-Object -Property $SelectedProperties | Format-List | Out-String
                            
                            If ($Count -gt 0) { $LogInnerMessage += $InnerExceptionSeperator }
                            $LogInnerMessage += $LogErrorInnerExceptionMsg
                            
                            $Count++
                            $ErrorInnerException = $ErrorInnerException.InnerException
                        }
                    }
                }
                
                If ($LogErrorMessage) { $Output = $LogErrorMessage }
                If ($LogInnerMessage) { $Output += $LogInnerMessage }
                
                Write-Output -InputObject $Output
                
                If (Test-Path -LiteralPath 'variable:Output') { Clear-Variable -Name 'Output' }
                If (Test-Path -LiteralPath 'variable:LogErrorMessage') { Clear-Variable -Name 'LogErrorMessage' }
                If (Test-Path -LiteralPath 'variable:LogInnerMessage') { Clear-Variable -Name 'LogInnerMessage' }
                If (Test-Path -LiteralPath 'variable:LogErrorMessageTmp') { Clear-Variable -Name 'LogErrorMessageTmp' }
            }
        }
        End {
        }
    }