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/auth/sasl/mech/plugins.go

@@ -0,0 +1,49 @@
+package mech
+
+import (
+	"fmt"
+	"sync"
+
+	log "github.com/golang/glog"
+)
+
+var (
+	mechLock       sync.Mutex
+	supportedMechs = make(map[string]Factory)
+)
+
+func Register(name string, f Factory) error {
+	mechLock.Lock()
+	defer mechLock.Unlock()
+
+	if _, found := supportedMechs[name]; found {
+		return fmt.Errorf("Mechanism registered twice: %s", name)
+	}
+	supportedMechs[name] = f
+	log.V(1).Infof("Registered mechanism %s", name)
+	return nil
+}
+
+func ListSupported() (list []string) {
+	mechLock.Lock()
+	defer mechLock.Unlock()
+
+	for mechname := range supportedMechs {
+		list = append(list, mechname)
+	}
+	return list
+}
+
+func SelectSupported(mechanisms []string) (selectedMech string, factory Factory) {
+	mechLock.Lock()
+	defer mechLock.Unlock()
+
+	for _, m := range mechanisms {
+		if f, ok := supportedMechs[m]; ok {
+			selectedMech = m
+			factory = f
+			break
+		}
+	}
+	return
+}