.ps1

$npm = @("config-lib", "config-api", "config-cli")

$processes = [System.Collections.ArrayList]@()

$location = get-location

try {
    foreach ($package in $npm) {
        set-location $psscriptroot\..\src\$package
        $process = ./node_modules/.bin/tsc --watch &
        $processes.Add($process) | out-null
    }
}
finally {
    foreach($process in $processes){
        do { Start-Sleep -Seconds 1 }  until ($process.HasExited);
        $process | stop-job
    }
    set-location $location
}

$npm = @("config-lib", "config-api", "config-cli")

$processes = foreach ($package in $npm) {
    Start-Process -FilePath ./node_modules/.bin/tsc -ArgumentList '--watch' -WorkingDirectory "$psscriptroot\..\src\$package" -PassThru
}

foreach($process in $processes){
    do {
        Start-Sleep -Seconds 1
    } until ($process.HasExited)
    if (-not $process.HasExited) {
        $process | Stop-Process
    }
}