function Build {
    & "$PSScriptRoot\scripts\build.ps1"
}

function Clean {
    & "$PSScriptRoot\scripts\clean.ps1"
}

function Run {
    & "$PSScriptRoot\scripts\run.ps1"
}

switch ($args[0]) {
    "rebuild" { Build }
    "clean" { Clean }
    "run" { Build; Run }
    default {
        Write-Host "Usage: .\mgr.ps1 [build|clean|run]"
    }
}