Move deps from _workspace/ to vendor/

godep restore
pushd $GOPATH/src/github.com/appc/spec
git co master
popd
go get go4.org/errorutil
rm -rf Godeps
godep save ./...
git add vendor
git add -f $(git ls-files --other vendor/)
git co -- Godeps/LICENSES Godeps/.license_file_state Godeps/OWNERS

vendor/github.com/mesos/mesos-go/scheduler/handler.go

@@ -0,0 +1,29 @@
+package scheduler
+
+import (
+	"github.com/mesos/mesos-go/auth/callback"
+	mesos "github.com/mesos/mesos-go/mesosproto"
+	"github.com/mesos/mesos-go/upid"
+)
+
+type CredentialHandler struct {
+	pid        *upid.UPID // the process to authenticate against (master)
+	client     *upid.UPID // the process to be authenticated (slave / framework)
+	credential *mesos.Credential
+}
+
+func (h *CredentialHandler) Handle(callbacks ...callback.Interface) error {
+	for _, cb := range callbacks {
+		switch cb := cb.(type) {
+		case *callback.Name:
+			cb.Set(h.credential.GetPrincipal())
+		case *callback.Password:
+			cb.Set(([]byte)(h.credential.GetSecret()))
+		case *callback.Interprocess:
+			cb.Set(*(h.pid), *(h.client))
+		default:
+			return &callback.Unsupported{Callback: cb}
+		}
+	}
+	return nil
+}