vendor/github.com/moby/buildkit/client/client_windows.go

package client

import (
	"context"
	"net"
	"strings"

	winio "github.com/Microsoft/go-winio"
	"github.com/pkg/errors"
)

func dialer(ctx context.Context, address string) (net.Conn, error) {
	addrParts := strings.SplitN(address, "://", 2)
	if len(addrParts) != 2 {
		return nil, errors.Errorf("invalid address %s", address)
	}
	switch addrParts[0] {
	case "npipe":
		address = strings.Replace(addrParts[1], "/", "\\", -1)
		return winio.DialPipeContext(ctx, address)
	default:
		var d net.Dialer
		return d.DialContext(ctx, addrParts[0], addrParts[1])
	}
}