Transpilers/Templates/Bash.Template.psx.ps1
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<# .SYNOPSIS Bash Template Transpiler. .DESCRIPTION Allows PipeScript to generate Bash scripts. Heredocs named PipeScript{} will be treated as blocks of PipeScript. ```bash <<PipeScript{} # This will be considered PipeScript / PowerShell, and will return the contents of a bash script. PipeScript{} ``` .EXAMPLE Invoke-PipeScript { $bashScript = @' echo 'hello world' <<PipeScript{} "echo '$('hi','yo','sup' | Get-Random)'" PipeScript{} '@ [OutputFile('.\HelloWorld.ps1.sh')]$bashScript } Invoke-PipeScript .\HelloWorld.ps1.sh #> [ValidatePattern('\.sh$')] param( # The command information. This will include the path to the file. [Parameter(Mandatory,ValueFromPipeline,ParameterSetName='TemplateFile')] [Management.Automation.CommandInfo] $CommandInfo, # If set, will return the information required to dynamically apply this template to any text. [Parameter(Mandatory,ParameterSetName='TemplateObject')] [switch] $AsTemplateObject, # A dictionary of parameters. [Collections.IDictionary] $Parameter, # A list of arguments. [PSObject[]] $ArgumentList ) begin { # We start off by declaring a number of regular expressions: $startComment = '(?>\<\<PipeScript\{\})' $endComment = '(?>PipeScript\{\})' # * StartRegex ```$StartComment + '{' + $Whitespace``` $startRegex = "(?<PSStart>${startComment})" # * EndRegex ```$whitespace + '}' + $EndComment``` $endRegex = "(?<PSEnd>${endComment})" # Create a splat containing arguments to the core inline transpiler $Splat = [Ordered]@{ StartPattern = $startRegex EndPattern = $endRegex } } process { # Add parameters related to the file $Splat.SourceFile = $commandInfo.Source -as [IO.FileInfo] $Splat.SourceText = [IO.File]::ReadAllText($commandInfo.Source) if ($Parameter) { $splat.Parameter = $Parameter } if ($ArgumentList) { $splat.ArgumentList = $ArgumentList } # If we are being used within a keyword, if ($AsTemplateObject) { $splat # output the parameters we would use to evaluate this file. } else { # Otherwise, call the core template transpiler .>PipeScript.Template @Splat # and output the changed file. } } |