functions/New-PSFormatXML.ps1
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Function New-PSFormatXML { [cmdletbinding(SupportsShouldProcess)] [alias("nfx")] [Outputtype("None", "System.IO.FileInfo")] Param( [Parameter(Mandatory, ValueFromPipeline, HelpMessage = "Specify an object to analyze and generate or update a ps1xml file.")] [object]$InputObject, [Parameter(HelpMessage = "Enter a set of properties to include. The default is all.")] [string[]]$Properties, [Parameter(HelpMessage = "Specify the object typename. If you don't, then the command will use the detected object type from the Inputobject.")] [string]$Typename, [Parameter(HelpMessage = "Specify whether to create a table or list view")] [ValidateSet("Table", "List")] [string]$FormatType = "Table", [string]$ViewName = "default", [Parameter(Mandatory, HelpMessage = "Enter full filename and path for the format.ps1xml file.")] [ValidateNotNullOrEmpty()] [string]$Path, [switch]$Append, [switch]$Passthru ) Begin { Write-Verbose "[$((Get-Date).TimeofDay) BEGIN ] Starting $($myinvocation.mycommand)" #convert the parent path into a real file system path $parent = Convert-Path -Path (Split-Path -Path $path) #reconstruct the path $realPath = Join-Path -Path $parent -ChildPath (Split-Path -Path $path -Leaf) if (-Not $Append) { Write-Verbose "[$((Get-Date).TimeofDay) BEGIN ] Initializing a new XML document" [xml]$Doc = New-Object System.Xml.XmlDocument #create declaration $dec = $Doc.CreateXmlDeclaration("1.0", "UTF-8", $null) #append to document [void]$doc.AppendChild($dec) $text = @" format type data generated $(Get-Date) by $env:USERDOMAIN\$env:username "@ [void]$doc.AppendChild($doc.CreateComment($text)) #create Configuration Node $config = $doc.CreateNode("element", "Configuration", $null) $viewdef = $doc.CreateNode("element", "ViewDefinitions", $null) } elseif ($Append -AND (Test-Path -path $realPath)) { Write-Verbose "[$((Get-Date).TimeofDay) BEGIN ] Opening format document $RealPath" [xml]$Doc = Get-Content -Path $realPath } else { Throw "Failed to find $Path" } $view = $doc.CreateNode("element", "View", $null) [void]$view.AppendChild($doc.CreateComment("Created $(Get-Date) by $env:USERDOMAIN\$env:username")) $name = $doc.CreateElement("Name") $name.InnerText = $ViewName [void]$view.AppendChild($name) $select = $doc.createnode("element", "ViewSelectedBy", $null) if ($FormatType -eq 'Table') { $table = $doc.CreateNode("element", "TableControl", $null) $headers = $doc.CreateNode("element", "TableHeaders", $null) $TableRowEntries = $doc.CreateNode("element", "TableRowEntries", $null) $entry = $doc.CreateNode("element", "TableRowEntry", $null) } else { $list = $doc.CreateNode("element", "ListControl", $null) $ListEntries = $doc.CreateNode("element", "ListEntries", $null) $ListEntry = $doc.CreateNode("element", "ListEntry", $null) } $counter = 0 } #begin Process { If ($counter -eq 0) { if ($Typename) { $tname = $TypeName } else { $tname = $Inputobject.psobject.typenames[0] } $tnameElement = $doc.CreateElement("TypeName") $tnameElement.InnerText = $tname [void]$select.AppendChild($tnameElement) [void]$view.AppendChild($select) Write-Verbose "[$((Get-Date).TimeofDay) PROCESS] Creating an format document for object type $tname " #get property members $objProperties = $Inputobject.psobject.properties $members = @() if ($properties) { foreach ($property in $properties) { Write-Verbose "[$((Get-Date).TimeofDay) PROCESS] Validating property: $property" $test = ($objProperties).where( {$_.name -like $property}) if ($test) { $members += $test } else { Write-Warning "Can't find a property called $property on this object. Did you enter it correctly?" } } #$members = $members.where( {$properties -contains $_.name}) } else { #use auto detected properties Write-Verbose "[$((Get-Date).TimeofDay) PROCESS] Auto detected $($objProperties.name.count) properties" $members = $objProperties } Write-Verbose "[$((Get-Date).TimeofDay) PROCESS] Processing $($members.name.count) properties" $comment = @" By default the entries use property names, but you can replace them with scriptblocks. <Scriptblock>`$_.foo /1mb -as [int]</Scriptblock> "@ if ($FormatType -eq 'Table') { $items = $doc.CreateNode("element", "TableColumnItems", $null) [void]$items.AppendChild($doc.CreateComment($comment)) foreach ($member in $members) { $th = $doc.createNode("element", "TableColumnHeader", $null) Write-Verbose "[$((Get-Date).TimeofDay) PROCESS]... $($member.name)" $label = $doc.CreateElement("Label") $label.InnerText = $member.Name [void]$th.AppendChild($label) $width = $doc.CreateElement("Width") <# set initial width to value length + 3 Use the width of whichever is longer, the name or value #> $longest = $Member.value.tostring().length, $member.name.length | Sort-Object | Select-Object -last 1 $width.InnerText = $longest + 3 [void]$th.AppendChild($width) $align = $doc.CreateElement("Alignment") $align.InnerText = "left" [void]$th.AppendChild($align) [void]$headers.AppendChild($th) $tci = $doc.CreateNode("element", "TableColumnItem", $null) $prop = $doc.CreateElement("PropertyName") $prop.InnerText = $member.name [void]$tci.AppendChild($prop) [void]$items.AppendChild($tci) } } else { #create a list $items = $doc.CreateNode("element", "ListItems", $null) [void]$items.AppendChild($doc.CreateComment($comment)) foreach ($member in $members) { $li = $doc.createNode("element", "ListItem", $null) Write-Verbose "[$((Get-Date).TimeofDay) PROCESS]... $($member.name)" $li = $doc.CreateNode("element", "ListItem", $null) $label = $doc.CreateElement("Label") $label.InnerText = $member.Name [void]$li.AppendChild($label) $prop = $doc.CreateElement("PropertyName") $prop.InnerText = $member.name [void]$li.AppendChild($prop) [void]$items.AppendChild($li) } } $counter++ } else { Write-Warning "Ignoring this object. I only need one instance of an object to create the ps1xml file. Your file will still be created." } } #process End { Write-Verbose "[$((Get-Date).TimeofDay) END ] Finalizing XML" #Add elements to each parent if ($FormatType -eq 'Table') { [void]$entry.AppendChild($items) [void]$TableRowEntries.AppendChild($entry) [void]$table.AppendChild($doc.CreateComment("Delete the AutoSize node if you want to use the defined widths.")) $auto = $doc.CreateElement("AutoSize") [void]$table.AppendChild($auto) [void]$table.AppendChild($headers) [void]$table.AppendChild($TableRowEntries) [void]$view.AppendChild($table) } else { [void]$listentry.AppendChild($items) [void]$listentries.AppendChild($listentry) [void]$list.AppendChild($listentries) [void]$view.AppendChild($list) } if ($append) { Write-Verbose "[$((Get-Date).TimeofDay) END ] Appending to existing XML" [void]$doc.Configuration.ViewDefinitions.AppendChild($View) } else { [void]$viewdef.AppendChild($view) [void]$config.AppendChild($viewdef) [void]$doc.AppendChild($config) } Write-Verbose "[$((Get-Date).TimeofDay) END ] Saving to $realpath" if ($PSCmdlet.ShouldProcess($realPath, "Adding $formattype view $viewname")) { $doc.Save($realPath) if ($Passthru) { Get-Item $realPath } } Write-Verbose "[$((Get-Date).TimeofDay) END ] Ending $($myinvocation.mycommand)" } #end } #close New-PSFormatXML |