build.ps1

# from http://stackoverflow.com/questions/1153126/how-to-create-a-zip-archive-with-powershell#answer-13302548
function ZipFiles( $zipfilename, $sourcedir )
{
   Add-Type -Assembly System.IO.Compression.FileSystem
   $compressionLevel = [System.IO.Compression.CompressionLevel]::Optimal
   [System.IO.Compression.ZipFile]::CreateFromDirectory($sourcedir,
        $zipfilename, $compressionLevel, $false)
}

$handlersDirectory = "Handlers"

dotnet restore
dotnet publish -c release "$handlersDirectory"

if ($LASTEXITCODE -ne 0) { return }

$publishDirectory = "$handlersDirectory/bin/release/netcoreapp2.0/publish"
$packageName = "deploy-package.zip"

rm "$publishDirectory/$packageName" -ErrorAction SilentlyContinue
ZipFiles "$(pwd)/$packageName" "$(pwd)/$publishDirectory"
mv "$packageName" $publishDirectory