server: Move all the top level files into cmd folder. (#2490)

This change brings a change which was done for the 'mc'
package to allow for clean repo and have a cleaner
github drop in experience.

cmd/rpc-control.go

@@ -0,0 +1,85 @@
+/*
+ * Minio Cloud Storage, (C) 2016 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cmd
+
+import (
+	"net/rpc"
+
+	router "github.com/gorilla/mux"
+)
+
+// Routes paths for "minio control" commands.
+const (
+	controlRPCPath = reservedBucket + "/control"
+	healPath       = controlRPCPath + "/heal"
+)
+
+// Register control RPC handlers.
+func registerControlRPCRouter(mux *router.Router, objAPI ObjectLayer) {
+	healRPCServer := rpc.NewServer()
+	healRPCServer.RegisterName("Heal", &healHandler{objAPI})
+	mux.Path(healPath).Handler(healRPCServer)
+}
+
+// Handler for object healing.
+type healHandler struct {
+	ObjectAPI ObjectLayer
+}
+
+// HealListArgs - argument for ListObjects RPC.
+type HealListArgs struct {
+	Bucket    string
+	Prefix    string
+	Marker    string
+	Delimiter string
+	MaxKeys   int
+}
+
+// HealListReply - reply by ListObjects RPC.
+type HealListReply struct {
+	IsTruncated bool
+	NextMarker  string
+	Objects     []string
+}
+
+// ListObjects - list objects.
+func (h healHandler) ListObjects(arg *HealListArgs, reply *HealListReply) error {
+	info, err := h.ObjectAPI.ListObjectsHeal(arg.Bucket, arg.Prefix, arg.Marker, arg.Delimiter, arg.MaxKeys)
+	if err != nil {
+		return err
+	}
+	reply.IsTruncated = info.IsTruncated
+	reply.NextMarker = info.NextMarker
+	for _, obj := range info.Objects {
+		reply.Objects = append(reply.Objects, obj.Name)
+	}
+	return nil
+}
+
+// HealObjectArgs - argument for HealObject RPC.
+type HealObjectArgs struct {
+	Bucket string
+	Object string
+}
+
+// HealObjectReply - reply by HealObject RPC.
+type HealObjectReply struct{}
+
+// HealObject - heal the object.
+func (h healHandler) HealObject(arg *HealObjectArgs, reply *HealObjectReply) error {
+	return h.ObjectAPI.HealObject(arg.Bucket, arg.Object)
+}