Switch to new vendor directory layout

Fixes #113

Signed-off-by: Marcos Lilljedahl <marcosnils@gmail.com>

vendor/github.com/opencontainers/runc/libcontainer/integration/init_test.go

@@ -0,0 +1,60 @@
+package integration
+
+import (
+	"os"
+	"runtime"
+	"testing"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/opencontainers/runc/libcontainer"
+	"github.com/opencontainers/runc/libcontainer/cgroups/systemd"
+	_ "github.com/opencontainers/runc/libcontainer/nsenter"
+)
+
+// init runs the libcontainer initialization code because of the busybox style needs
+// to work around the go runtime and the issues with forking
+func init() {
+	if len(os.Args) < 2 || os.Args[1] != "init" {
+		return
+	}
+	runtime.GOMAXPROCS(1)
+	runtime.LockOSThread()
+	factory, err := libcontainer.New("")
+	if err != nil {
+		logrus.Fatalf("unable to initialize for container: %s", err)
+	}
+	if err := factory.StartInitialization(); err != nil {
+		logrus.Fatal(err)
+	}
+}
+
+var (
+	factory        libcontainer.Factory
+	systemdFactory libcontainer.Factory
+)
+
+func TestMain(m *testing.M) {
+	var (
+		err error
+		ret int = 0
+	)
+
+	logrus.SetOutput(os.Stderr)
+	logrus.SetLevel(logrus.InfoLevel)
+
+	factory, err = libcontainer.New(".", libcontainer.Cgroupfs)
+	if err != nil {
+		logrus.Error(err)
+		os.Exit(1)
+	}
+	if systemd.UseSystemd() {
+		systemdFactory, err = libcontainer.New(".", libcontainer.SystemdCgroups)
+		if err != nil {
+			logrus.Error(err)
+			os.Exit(1)
+		}
+	}
+
+	ret = m.Run()
+	os.Exit(ret)
+}