useful/scripts/Refresh-Path.ps1 at master · levid0s/useful · GitHub

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<#PSScriptInfo
.VERSION      2023.03.22
.AUTHOR       Levente Rog
.COPYRIGHT    (c) 2023 Levente Rog
.LICENSEURI   https://github.com/levid0s/useful/blob/master/LICENSE.md
.PROJECTURI   https://github.com/levid0s/useful/
#>

<#
.SYNOPSIS
Refresh the %PATH% in current shell to whatever is set in the Registry.
Useful when new apps were installed and you don't want to close your shell.

.EXAMPLE
Refresh-Path.ps1
#>

function Get-EnvPathsArr {
	[OutputType([String[]])]

	Param(
		[ValidateSet('User', 'Machine', 'All')]
		$Scope = 'All'
	)

	$Paths = @()

	if ( @('Machine', 'All') -icontains $Scope) {
		$Paths += `
			[Environment]::GetEnvironmentVariable("Path", [EnvironmentVariableTarget]::Machine).Split(';', [System.StringSplitOptions]::RemoveEmptyEntries)
	}

	if ( @('User', 'All') -icontains $Scope) {
		$Paths += `
			[Environment]::GetEnvironmentVariable("Path", [EnvironmentVariableTarget]::User).Split(';', [System.StringSplitOptions]::RemoveEmptyEntries)
	}

	return $Paths
}


###
###  Refresh Shell
###

$pathsRegistry = $(Get-EnvPathsArr) -join ';'

if ($pathsRegistry -ne $env:Path) {
	Write-Output "Refreshing %PATH% in current shell..."
	$env:Path = $(Get-EnvPathsArr) -join ';'
}
else {
	Write-Output "%PATH% already up to date."
}

Write-Output ''