Commands/Format.PS1XML/Push-FormatData.ps1
|
function Push-FormatData { <# .Synopsis Pushes formatting to the current session. .Description Push-FormatData pushes formatting data into the current session. The formatting data is defined in .Format.ps1xml files (such as those in the $pshome directory). Add-FormatData will take one or more XML documents containing format data and will create a temporary module to use the formatting file. .Link Clear-FormatData .Link Pop-FormatData .Link Out-FormatData .Example # Let's start off by looking at how something like XML is rendered in PowerShell [xml]"<a an='anattribute'><b d='attribute'><c/></b></a>" # It's not very intuitive. # I cannot really only see the element I am looking at, instead of a chunk of data # Create a quick view for any XML element. # Piping it into Out-FormatData will make one or more format views into a full format XML file # Piping the output of that into Add-FormatData will create a temporary module to hold the formatting data # There's also a Remove-FormatData and Write-FormatView -TypeName "System.Xml.XmlNode" -Wrap -Property "Xml" -VirtualProperty @{ "Xml" = { $strWrite = New-Object IO.StringWriter ([xml]$_.Outerxml).Save($strWrite) "$strWrite" } } | Out-FormatData | Push-FormatData # Now let's take a look at how the xml renders [xml]"<a an='anattribute'><b d='attribute'><c /></b></a>" # In case we want to go back to the original formatter, we can use Clear-FormatData to return # to the old formatting data Clear-FormatData # And we're back to the original formatting [xml]"<a an='anattribute'><b d='attribute'><c/></b></a>" #> [OutputType([Nullable], [PSModuleInfo])] [Alias('Add-FormatData')] param( # The Format XML Document. The XML document can be supplied directly, # but it's easier to use Write-FormatView to create it [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [ValidateScript({ if ((-not $_.Configuration)) { throw "The root of a format XML most be a Configuration element" } return $true })] [Xml] $FormatXml, # The name of the format module. If the name is not provided, the name of the module will be the first # type name encountered. If no typename is encountered, the name of the module will be FormatModuleN, where # N is the number of modules loaded so far [string] $Name, # If set, the module that contains the format files will be outputted to the pipeline [Switch] $PassThru ) begin { # Create a list of all of the format files that will be loaded in this batch. $formatFiles = @() } process { #region Create a temporary file to hold each of the formatters $tempDir = $env:Temp, '/tmp' -ne '' | Select-Object -First 1 $tempFile = Join-Path $tempDir ([IO.Path]::GetRandomFileName()) $formatFileName = "${tempFile}.Format.ps1xml" $FormatXml.Save($FormatFileName) $formatFiles += (Get-Item $formatFileName).Name #endregion Create a temporary file to hold each of the formatters } end { #region Generate Module for the Type if (-not $Name) { $typeName = $FormatXml.SelectSingleNode("//TypeName") if ($typeName) { $Name = $typeName.'#text' } else { $Name = "FormatModule$($FormatModules.Count + 1)" } } $Name = $Name.Replace("#","").Replace("\","").Replace("/","").Replace(":","") $tempFile = Join-Path $tempDir $Name $tempFile = "${tempFile}_${pid}.psd1" # this path was colliding with other processes because its type name was fixed # old: 'C:\Users\User\AppData\Local\Temp\System.Text.RegularExpressions.Match.psd1' # new: 'C:\Users\User\AppData\Local\Temp\System.Text.RegularExpressions.Match_1234.psd1' Get-Module $Name -ErrorAction SilentlyContinue | Remove-Module $ModuleManifestParameters = @{ FormatsToProcess = $FormatFiles NestedModules = @() Author = $env:UserName CompanyName = "" Copyright = Get-Date ModuleToProcess = "" RequiredModules = @() Description = "" RequiredAssemblies = @() TypesToProcess = @() FileList = $FormatFiles Path = $tempFile } New-ModuleManifest @ModuleManifestParameters if ($script:FormatModules.Count) { $script:FormatModules.Values | Where-Object { $_ } |Import-Module -Force } $module = Import-Module $tempFile -Force -PassThru $script:formatModules[$Name] = $module if ($passThru) { $module } <# I didn't delete the $TempFile here because other cmdlets might assume it's not removed, when they reference '$script:formatModules' #> #endregion Generate Module for the Type } } |