Update PSReadLine

Update-PSReadLine.ps1

<#
.SYNOPSIS
    Updates PSReadLine module cleanly.
.DESCRIPTION
    Uninstalls older conflicting versions of PSReadLine and installs the latest version
    from the PowerShell Gallery. Ensures the latest version is imported.
.NOTES
    Author: Dylan Magar <[email protected]>
    License: MIT
    GitHub: https://github.com/djstompzone/placeholder
#>

# Optional: elevate if running without admin rights
if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
    Write-Host "Relaunching as administrator..."
    Start-Process powershell -Verb runAs -ArgumentList ("-NoProfile -ExecutionPolicy Bypass -File `"" + $MyInvocation.MyCommand.Path + "`"")
    exit
}

# Install PowerShellGet if needed
if (-not (Get-Command Install-Module -ErrorAction SilentlyContinue)) {
    Write-Host "Installing PowerShellGet..."
    Install-PackageProvider -Name NuGet -Force
    Install-Module PowerShellGet -Force
}

# Ensure NuGet is available
if (-not (Get-PackageProvider -Name NuGet -ErrorAction SilentlyContinue)) {
    Install-PackageProvider -Name NuGet -Force
}

# Uninstall older conflicting versions
$installed = Get-InstalledModule -Name PSReadLine -AllVersions -ErrorAction SilentlyContinue
if ($installed) {
    foreach ($ver in $installed) {
        Write-Host "Removing old PSReadLine version $($ver.Version)..."
        Uninstall-Module -Name PSReadLine -RequiredVersion $ver.Version -Force -ErrorAction SilentlyContinue
    }
}

# Install latest
Write-Host "Installing latest PSReadLine..."
Install-Module -Name PSReadLine -Force -AllowClobber

# Force import it
Import-Module PSReadLine -Force

# Confirm
$ver = Get-Module PSReadLine | Select-Object -ExpandProperty Version
Write-Host "PSReadLine updated to version $ver"