Refactoring minio server command and flags

controller-main.go

@@ -0,0 +1,74 @@
+/*
+ * Minio Cloud Storage, (C) 2015 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 main
+
+import (
+	"github.com/minio/minio/internal/github.com/minio/cli"
+	"github.com/minio/minio/pkg/controller"
+)
+
+var controllerCmd = cli.Command{
+	Name:   "controller",
+	Usage:  "Get|Set server configuration",
+	Action: controllerMain,
+	CustomHelpTemplate: `NAME:
+  minio {{.Name}} - {{.Description}}
+
+USAGE:
+  minio {{.Name}} [get|set] [INFOTYPE] [SERVERURL]
+
+EXAMPLES:
+  1. Get disks from controller
+      $ minio {{.Name}} get disks http://localhost:9001/rpc
+
+  2. Get memstats from controller
+      $ minio {{.Name}} get mem http://localhost:9001/rpc
+
+`,
+}
+
+func controllerMain(c *cli.Context) {
+	if len(c.Args()) < 2 || c.Args().First() == "help" {
+		cli.ShowCommandHelpAndExit(c, "controller", 1) // last argument is exit code
+	}
+	if c.Args().First() == "get" {
+		newArgs := c.Args().Tail()
+		switch newArgs.First() {
+		case "mem":
+			memstats, err := controller.GetMemStats(newArgs.Tail().First())
+			if err != nil {
+				Fatalln(err)
+			}
+			Println(string(memstats))
+		case "sysinfo":
+			sysinfo, err := controller.GetSysInfo(newArgs.Tail().First())
+			if err != nil {
+				Fatalln(err)
+			}
+			Println(string(sysinfo))
+		case "auth":
+			keys, err := controller.GetAuthKeys(newArgs.Tail().First())
+			if err != nil {
+				Fatalln(err)
+			}
+			Println(string(keys))
+		}
+	}
+	if c.Args().First() == "set" {
+		Fatalln("Not supported yet")
+	}
+}