pstools.psscriptinfo

1.1

public/Get-PSScriptInfo.ps1

                                <#PSScriptInfo

    .VERSION                       1.0.0.0

    .GUID                          dd14abf0-8b1b-425f-9498-8dfaf657ae9f

    .FILENAME                      Get-PSScriptInfo.ps1

    .AUTHOR                        Hannes Palmquist

    .AUTHOREMAIL                   hannes.palmquist@outlook.com

    .CREATEDDATE                   2019-09-23

    .COMPANYNAME                   N/A

    .COPYRIGHT                     (c) 2019, Hannes Palmquist, All Rights Reserved

#>

function Get-PSScriptInfo

{

    <#

        .DESCRIPTION

            Collect and parse psscriptinfo from file

        .PARAMETER FilePath

            Defines the path to the file from which to get psscriptinfo from.

        .EXAMPLE

            Get-PSScriptInfo -FilePath C:\temp\file.ps1

    #>

    [CmdletBinding()] # Enabled advanced function support

    param(

        [ValidateScript( { Test-Path -Path $_.FullName -PathType Leaf })]

        [Parameter(Mandatory)]

        [system.io.fileinfo]

        $FilePath

    )

    PROCESS

    {

        # Read ast tokens from file

        try

        {

            New-Variable astTokens -Force -ErrorAction Stop

            New-Variable astErr -Force -ErrorAction Stop

            $null = [System.Management.Automation.Language.Parser]::ParseFile($FilePath, [ref]$astTokens, [ref]$astErr)

            Write-Verbose -Message 'Read file content'

        }

        catch

        {

            throw "Failed to read file content with error: $PSItem"

        }

        # Find PSScriptInfo comment token

        $PSScriptInfoText = $astTokens.where{ $_.kind -eq 'comment' -and $_.text.Replace("`r", '').Split("`n")[0] -like '<#PSScriptInfo*' } | Select-Object -expand text -ErrorAction stop

        Write-Verbose -Message 'Parsed powershell script file and extracted raw PSScriptInfoText'

        if (-not $PSScriptInfoText)

        {

            throw 'No PSScriptInfo found in file'

        }

        # Extract PSScriptInfo from JSON

        try

        {

            $PSScriptInfo = $PSScriptInfoText.Split("`n") | Select-Object -Skip 1 -ErrorAction Stop | Select-Object -SkipLast 1 -ErrorAction Stop | ConvertFrom-Json -ErrorAction Stop

            Write-Verbose -Message 'Parsed PSScriptInfo to JSON'

        }

        catch

        {

            throw "Failed to parse PSScriptInfo to JSON with error: $PSItem"

        }

        return $PSScriptInfo

    }

}

#endregion

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# SIG # End signature block