InvokeNugetInstall.ps1

function Invoke-NugetInstall {

    param ( 
          [string] $WorkingFolder
        , [String] $NugetPath
        , [string] $NugetPackage
        , [string] $PackageVersion
        , [string] $NuGetInstallUri
    )

    if (-Not $WorkingFolder) {
        Throw "Working folder needs to be set. Its blank"
    }
    Write-Verbose "Verbose Folder  (with Verbose) : $WorkingFolder" -Verbose

    Write-Verbose "packageVersion : $PackageVersion" -Verbose
    Write-Warning "If PackageVersion is blank latest will be used"
    $NugetExe = "$NugetPath\nuget.exe"
    if (-not (Test-Path $NugetExe)) {
         Write-Verbose "Cannot find nuget at path $NugetExe" -Verbose
         Invoke-WebRequest $NuGetInstallUri -OutFile $NugetPath
        if (-not (Test-Path $NugetExe)) { 
            Throw "It appears that the nuget download hasn't worked."
        }
        Else {
            Write-Verbose "Nuget Downloaded!" -Verbose
}
    }
    $nugetInstallMsbuild = "&$NugetExe install $NugetPackage -ExcludeVersion -OutputDirectory $WorkingFolder"
    if ($PackageVersion) {
        $nugetInstallMsbuild += "-version '$PackageVersion'"
    }
    Write-Host $nugetInstallMsbuild -BackgroundColor White -ForegroundColor DarkGreen
    Invoke-Expression $nugetInstallMsbuild

    $SSDTMSbuildFolder = "$WorkingFolder\$NugetPackage"
    if (-not (Test-Path $SSDTMSbuildFolder)) {
        
        Throw "It appears that the nuget install hasn't worked, check output above to see whats going on"
    }
}