Powershell script to install nuget and update path

nuget-install.ps1

$sourceNugetExe = "https://dist.nuget.org/win-x86-commandline/latest/nuget.exe"
$targetPath = "C:\Program Files\nuget"

if (-not (Test-Path -LiteralPath $targetPath)) {
    
    try {
        New-Item -Path $targetPath -ItemType Directory -ErrorAction Stop | Out-Null #-Force
    }
    catch {
        Write-Error -Message "Unable to create directory '$targetPath'. Error was: $_" -ErrorAction Stop
    }
    "Successfully created directory '$targetPath'."

}
else {
    "$targetPath already existed"
}

if (-not (Test-Path -LiteralPath "$targetPath\nuget.exe")) {
    "Downloading nuget.exe to $targetPath\nuget.exe"
    Invoke-WebRequest $sourceNugetExe -OutFile "$targetPath\nuget.exe"
} else {
    "nuget.exe already exists at $targetPath"
}
# Add the tools dir to the path which directly contains NuGet.exe and CredentialProvider.VSS.exe
if (!($env:Path -like "*;$targetPath*"))
{
    "Adding $targetPath to Path"
    $env:Path = "$targetPath;" + $env:Path

    $oldPath = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name path).path
    $newPath=$oldPath+";$targetPath"
    Set-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name path -Value $newPath
}
else {
    "$targetPath already existed in Path"
}

Run from an elevated powershell with: iex ((New-Object System.Net.WebClient).DownloadString('https://gist.github.com/Codebytes/1ae354e736c88adef5b6f802597e3101/raw'))