functions/format/New-PSMDFormatTableDefinition.ps1
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function New-PSMDFormatTableDefinition { <# .SYNOPSIS Generates a format XML for the input type. .DESCRIPTION Generates a format XML for the input type. Currently, only tables are supported. Note: Loading format files has a measureable impact on module import PER FILE. For the sake of performance, you should only generate a single file for an entire module. You can generate all items in a single call (which will probably be messy on many types at a time) Or you can use the -Fragment parameter to create individual fragments, and combine them by passing those items again to this command (the final time without the -Fragment parameter). .PARAMETER InputObject The object that will be used to generate the format XML for. Will not duplicate its work if multiple object of the same type are passed. Accepts objects generated when using the -Fragment parameter, combining them into a single document. .PARAMETER IncludeProperty Only properties in this list will be included. .PARAMETER ExcludeProperty Only properties not in this list will be included. .PARAMETER IncludePropertyAttribute Only properties that have the specified attribute will be included. .PARAMETER ExcludePropertyAttribute Only properties that do NOT have the specified attribute will be included. .PARAMETER Fragment The function will only return a partial Format-XML object (an individual table definition per type). .PARAMETER DocumentName Adds a name to the document generated. Purely cosmetic. .PARAMETER SortColumns Enabling this will cause the command to sort columns alphabetically. Explicit order styles take precedence over alphabetic sorting. .PARAMETER ColumnOrder Specify a list of properties in the order they should appear. For properties with labels: Labels take precedence over selected propertyname. .PARAMETER ColumnOrderHash Allows explicitly defining the order of columns on a per-type basis. These hashtables need to have two properties: - Type: The name of the type it applies to (e.g.: "System.IO.FileInfo") - Properties: The list of properties in the order they should appear. Example: @{ Type = "System.IO.FileInfo"; Properties = "Name", "Length", "LastWriteTime" } This parameter takes precedence over ColumnOrder in instances where the processed typename is explicitly listed in a hashtable. .PARAMETER ColumnTransformations A complex parameter that allows customizing columns or even adding new ones. This parameter accepts a hashtable that can ... - Set column width - Set column alignment - Add a script column - Assign a label to a column It can be targeted by typename as well as propertyname. Possible properties (others will be ignored): Content | Type | Possible Hashtable Keys Filter: Typename | string | T / Type / TypeName / FilterViewName Filter: Property | string | C / Column / Name / P / Property / PropertyName Append | bool | A / Append ScriptBlock | script | S / Script / ScriptBlock Label | string | L / Label Width | int | W / Width Alignment | string | Align / Alignment Notes: - Append needs to be specified if a new column should be added if no property to override was found. Use this to add a completely new column with a ScriptBlock. - Alignment: Expects a string, can be any choice of "Left", "Center", "Right" Example: $transform = @{ Type = "System.IO.FileInfo" Append = $true Script = { "{0} | {1}" -f $_.Extension, $_.Length } Label = "Ext.Length" Align = "Left" } .EXAMPLE PS C:\> Get-ChildItem | New-PSMDFormatTableDefinition Generates a format xml for the objects in the current path (files and folders in most cases) .EXAMPLE PS C:\> Get-ChildItem | New-PSMDFormatTableDefinition -IncludeProperty LastWriteTime, FullName Creates a format xml that only includes the columns LastWriteTime, FullName #> [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseShouldProcessForStateChangingFunctions", "")] [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseDeclaredVarsMoreThanAssignments", "")] [OutputType([PSModuleDevelopment.Format.Document], ParameterSetName = "default")] [OutputType([PSModuleDevelopment.Format.TableDefinition], ParameterSetName = "fragment")] [CmdletBinding(DefaultParameterSetName = "default")] Param ( [Parameter(Mandatory = $true, ValueFromPipeline = $true)] $InputObject, [string[]] $IncludeProperty, [string[]] $ExcludeProperty, [string] $IncludePropertyAttribute, [string] $ExcludePropertyAttribute, [Parameter(ParameterSetName = "fragment")] [switch] $Fragment, [Parameter(ParameterSetName = "default")] [string] $DocumentName, [switch] $SortColumns, [string[]] $ColumnOrder, [hashtable[]] $ColumnOrderHash, [PSModuleDevelopment.Format.ColumnTransformation[]] $ColumnTransformations ) begin { $typeNames = @() $document = New-Object PSModuleDevelopment.Format.Document $document.Name = $DocumentName } process { foreach ($object in $InputObject) { #region Input Type Processing if ($object -is [PSModuleDevelopment.Format.TableDefinition]) { if ($Fragment) { $object continue } else { $document.Views.Add($object) continue } } if ($object.PSObject.TypeNames[0] -in $typeNames) { continue } else { $typeNames += $object.PSObject.TypeNames[0] } $typeName = $object.PSObject.TypeNames[0] #endregion Input Type Processing #region Process Properties $propertyNames = $object.PSOBject.Properties.Name if ($IncludeProperty) { $propertyNames = $propertyNames | Where-Object { $_ -in $IncludeProperty } } if ($ExcludeProperty) { $propertyNames = $propertyNames | Where-Object { $_ -notin $ExcludeProperty } } if ($IncludePropertyAttribute) { $listToInclude = @() $object.GetType().GetMembers([System.Reflection.BindingFlags]("FlattenHierarchy, Public, Instance")) | Where-Object { ($_.MemberType -match "Property|Field") -and ($_.CustomAttributes.AttributeType.Name -like $IncludePropertyAttribute) } | ForEach-Object { $listToInclude += $_.Name } $propertyNames = $propertyNames | Where-Object { $_ -in $listToInclude } } if ($ExcludePropertyAttribute) { $listToExclude = @() $object.GetType().GetMembers([System.Reflection.BindingFlags]("FlattenHierarchy, Public, Instance")) | Where-Object { ($_.MemberType -match "Property|Field") -and ($_.CustomAttributes.AttributeType.Name -like $ExcludePropertyAttribute) } | ForEach-Object { $listToExclude += $_.Name } $propertyNames = $propertyNames | Where-Object { $_ -notin $listToExclude } } $table = New-Object PSModuleDevelopment.Format.TableDefinition $table.Name = $typeName $table.ViewSelectedByType = $typeName foreach ($name in $propertyNames) { $column = New-Object PSModuleDevelopment.Format.Column $column.PropertyName = $name $table.Columns.Add($column) } foreach ($transform in $ColumnTransformations) { $table.TransformColumn($transform) } #endregion Process Properties #region Sort Columns if ($SortColumns) { $table.Columns.Sort() } $appliedOrder = $false foreach ($item in $ColumnOrderHash) { if (($item.Type -eq $typeName) -and ($item.Properties -as [string[]])) { [string[]]$props = $item.Properties $table.SetColumnOrder($props) $appliedOrder = $true } } if ((-not $appliedOrder) -and ($ColumnOrder)) { $table.SetColumnOrder($ColumnOrder) } #endregion Sort Columns $document.Views.Add($table) if ($Fragment) { $table } } } end { $document.Views.Sort() if (-not $Fragment) { $document } } } |