PSModuleUtils/Functions/ScriptBlock.ps1
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# =========================================================================== # ScriptBlock.ps1 --------------------------------------------------------- # =========================================================================== # function ---------------------------------------------------------------- # --------------------------------------------------------------------------- function Join-ScriptBlock { <# .DESCRIPTION Join several scriptblocks and move existing 'using' directives at the beginning of the script. .OUTPUTS ScriptBlock. Joint scriptblocks. #> [CmdletBinding(PositionalBinding)] [OutputType([ScriptBlock])] Param( [Parameter(Position=1, Mandatory, ValueFromPipeline, HelpMessage="Array with objects of type [ScriptBlock] which are to be combined.")] [ScriptBlock[]] $Scripts ) Process { # get all script blocks, convert them to strings as well as join these $script_joint = "" foreach ($script in $Scripts) { $script_joint += $script.ToString() } # search for 'using module' and 'using namespace' directives and get only unique ones $using_directive = "" $using_directive_search = "\s*(using\s+[a-z]+\s+[a-z\.]+)" [Regex]::Matches($script_joint, $using_directive_search, "IgnoreCase").Groups | Where-Object { $_.Name -eq 1} | Select-Object -ExpandProperty Value -Unique | ForEach-Object{ $using_directive += "$_`n" } # generate a script block from singular script blocks and add 'using'-directives at its beginning $script_joint = $script_joint -replace $using_directive_search, "" return [ScriptBlock]::Create( $using_directive + $script_joint ) } } |