functions/utility/Measure-PSMDLinesOfCode.ps1
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function Measure-PSMDLinesOfCode { <# .SYNOPSIS Measures the lines of code ina PowerShell scriptfile. .DESCRIPTION Measures the lines of code ina PowerShell scriptfile. This scan uses the AST to figure out how many lines contain actual functional code. .PARAMETER Path Path to the files to scan. Folders will be ignored. .EXAMPLE PS C:\> Measure-PSMDLinesOfCode -Path .\script.ps1 Measures the lines of code in the specified file. .EXAMPLE PS C:\> Get-ChildItem C:\Scripts\*.ps1 | Measure-PSMDLinesOfCode Measures the lines of code for every single file in the folder c:\Scripts. #> [CmdletBinding()] param ( [Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [Alias('FullName')] [string[]] $Path ) begin { #region Utility Functions function Invoke-AstWalk { [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSReviewUnusedParameter', '')] [CmdletBinding()] param ( $Ast, [string[]] $Command, [string[]] $Name, [string] $NewName, [bool] $IsCommand, [bool] $NoAlias, [switch] $First ) #Write-PSFMessage -Level Host -Message "Processing $($Ast.Extent.StartLineNumber) | $($Ast.Extent.File) | $($Ast.GetType().FullName)" $typeName = $Ast.GetType().FullName switch ($typeName) { 'System.Management.Automation.Language.StringConstantExpressionAst' { $Ast.Extent.StartLineNumber .. $Ast.Extent.EndLineNumber } 'System.Management.Automation.Language.IfStatementAst' { $Ast.Extent.StartLineNumber $Ast.Extent.EndLineNumber foreach ($clause in $Ast.Clauses) { Invoke-AstWalk -Ast $clause.Item1 -Command $Command -Name $Name -NewName $NewName -IsCommand $IsCommand Invoke-AstWalk -Ast $clause.Item2 -Command $Command -Name $Name -NewName $NewName -IsCommand $IsCommand } if ($null -ne $Ast.ElseClause) { Invoke-AstWalk -Ast $Ast.ElseClause -Command $Command -Name $Name -NewName $NewName -IsCommand $IsCommand } } default { if (-not $First) { $Ast.Extent.StartLineNumber $Ast.Extent.EndLineNumber } foreach ($property in $Ast.PSObject.Properties) { if ($property.Name -eq "Parent") { continue } if ($null -eq $property.Value) { continue } if (Get-Member -InputObject $property.Value -Name GetEnumerator -MemberType Method) { foreach ($item in $property.Value) { if ($item.PSObject.TypeNames -contains "System.Management.Automation.Language.Ast") { Invoke-AstWalk -Ast $item -Command $Command -Name $Name -NewName $NewName -IsCommand $IsCommand } } continue } if ($property.Value.PSObject.TypeNames -contains "System.Management.Automation.Language.Ast") { Invoke-AstWalk -Ast $property.Value -Command $Command -Name $Name -NewName $NewName -IsCommand $IsCommand } } } } } #endregion Utility Functions } process { #region Process Files foreach ($fileItem in $Path) { Write-PSFMessage -Level VeryVerbose -String MeasurePSMDLinesOfCode.Processing -StringValues $fileItem foreach ($resolvedPath in (Resolve-PSFPath -Path $fileItem -Provider FileSystem)) { if ((Get-Item $resolvedPath).PSIsContainer) { continue } $parsedItem = Read-PSMDScript -Path $resolvedPath $object = New-Object PSModuleDevelopment.Utility.LinesOfCode -Property @{ Path = $resolvedPath } if ($parsedItem.Ast) { $object.Ast = $parsedItem.Ast $object.Lines = Invoke-AstWalk -Ast $parsedItem.Ast -First | Sort-Object -Unique $object.Count = ($object.Lines | Measure-Object).Count $object.Success = $true } $object } } #endregion Process Files } } |