internal/functions/flowcontrol/Test-PsVersion.ps1
|
function Test-PsVersion { <# .SYNOPSIS Internal tool, used to detect the version of PowerShell .DESCRIPTION We still support PS3 and as future continues we will have to maintain code base for PS3 and code base for newer versions of PowerShell. This is just easier function to use for validating version of PS with if/else statements .PARAMETER Is Use to only allow specific version of PowerShell .PARAMETER Minimum Use to allow for minimum version .PARAMETER Maximum Use to allow for maximum version .EXAMPLE PS C:\> if (Test-PsVersion -Is 3) { >> #do something >> } The calling function will only execute code if PS version is 3.0. .EXAMPLE PS C:\> if (Test-PsVersion -Minimum 4) { >> #do something >> } The calling function will only execute code if PS version is 4.0 or higher. .EXAMPLE PS C:\> if (Test-PsVersion -Minimum 3 -Maximum 5.1) { >> #do something >> } The calling function will only execute code if PS version is found to be between 3.0 and 5 (could include 5.0 or 5.1). #> [CmdletBinding()] param ( [float]$Is, [float]$Minimum, [float]$Maximum ) begin { $major = $PSVersionTable.PSVersion.Major $minor = $PSVersionTable.PSVersion.Minor [float]$detectedVersion = "$major.$minor" } process { $returnIt = $true if ($Maximum) { $returnIt = $detectedVersion -le $Maximum } if ($Minimum) { $returnIt = $detectedVersion -ge $Minimum } if ($Is) { $returnIt = $detectedVersion -eq $Is } return $returnIt } } |