Data/PSSessionVariable/Initialize-PSSessionVariable.ps1
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<#
.SYNOPSIS Records a value for a Session variable to allow testing for it .NOTES Use with Test-PSSessionVariableEntry .EXAMPLE $SessionLogVariableName = 'SessionWideUniqueName' $filePath = Join-Path (Join-Path (Join-Path $DependencyFolder 'Depend-NuGet') $NugetPackageName) $PathToDll if (-not (& "$PSScriptRoot\Test-PSSessionVariableEntry.ps1" -VariableName $SessionLogVariableName -Value $filePath)) { .. do something that you only want to happen once per session & "$PSScriptRoot\Add-PSSessionVariableEntry.ps1" -VariableName $SessionLogVariableName -Value $filePath } #> function Initialize-PSSessionVariable { param( [parameter(Mandatory)] [string] $GlobalVariableName, [parameter(Mandatory)] [string] $CollectionName ) try { if (-not (Test-Path "variable:global:$GlobalVariableName")) { Set-Variable -Scope 'Global' -Name $GlobalVariableName -Value ([PSCustomObject]@{}) -WhatIf:$false -Confirm:$false } $globalVariable = (Get-Variable -Scope 'Global' -Name $GlobalVariableName).Value if (-not ($globalVariable.PSObject.Properties[$CollectionName])) { $globalVariable | Add-Member $CollectionName ([System.Collections.Generic.HashSet[string]]::new([StringComparer]::InvariantCultureIgnoreCase)) } Write-Output ($globalVariable.PSObject.Properties[$CollectionName].Value) -NoEnumerate } catch { throw } } |