etcd-runner: move root cmd into command package

this allows easier sharing of global variable for sub commands.

tools/functional-tester/etcd-runner/command/help.go

@@ -14,7 +14,7 @@
 
 // copied from https://github.com/rkt/rkt/blob/master/rkt/help.go
 
-package main
+package command
 
 import (
 	"bytes"

tools/functional-tester/etcd-runner/command/root.go

@@ -0,0 +1,69 @@
+// Copyright 2017 The etcd Authors
+//
+// 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 command
+
+import (
+	"log"
+	"math/rand"
+	"time"
+
+	"github.com/spf13/cobra"
+)
+
+const (
+	cliName        = "etcd-runner"
+	cliDescription = "Stress tests using clientv3 functionality.."
+
+	defaultDialTimeout = 2 * time.Second
+)
+
+var (
+	rootCmd = &cobra.Command{
+		Use:        cliName,
+		Short:      cliDescription,
+		SuggestFor: []string{"etcd-runner"},
+	}
+)
+
+func init() {
+	cobra.EnablePrefixMatching = true
+
+	rand.Seed(time.Now().UnixNano())
+
+	log.SetFlags(log.Lmicroseconds)
+
+	rootCmd.PersistentFlags().StringSliceVar(&endpoints, "endpoints", []string{"127.0.0.1:2379"}, "gRPC endpoints")
+	rootCmd.PersistentFlags().DurationVar(&dialTimeout, "dial-timeout", defaultDialTimeout, "dial timeout for client connections")
+	rootCmd.PersistentFlags().IntVar(&reqRate, "req-rate", 30, "maximum number of requests per second")
+	rootCmd.PersistentFlags().IntVar(&rounds, "rounds", 100, "number of rounds to run; 0 to run forever")
+
+	rootCmd.AddCommand(
+		NewElectionCommand(),
+		NewLeaseRenewerCommand(),
+		NewLockRacerCommand(),
+		NewWatchCommand(),
+	)
+}
+
+func Start() {
+	rootCmd.SetUsageFunc(usageFunc)
+
+	// Make help just show the usage
+	rootCmd.SetHelpTemplate(`{{.UsageString}}`)
+
+	if err := rootCmd.Execute(); err != nil {
+		ExitWithError(ExitError, err)
+	}
+}

tools/functional-tester/etcd-runner/main.go

@@ -15,61 +15,8 @@
 // etcd-runner is a command line application that performs tests on etcd.
 package main
 
-import (
-	"log"
-	"time"
-
-	"github.com/coreos/etcd/tools/functional-tester/etcd-runner/command"
-	"github.com/spf13/cobra"
-)
-
-const (
-	cliName        = "etcd-runner"
-	cliDescription = "Stress tests using clientv3 functionality.."
-
-	defaultDialTimeout = 2 * time.Second
-)
-
-var (
-	globalFlags = command.GlobalFlags{}
-)
-
-var (
-	rootCmd = &cobra.Command{
-		Use:        cliName,
-		Short:      cliDescription,
-		SuggestFor: []string{"etcd-runner"},
-	}
-)
-
-func init() {
-	log.SetFlags(log.Lmicroseconds)
-	rootCmd.PersistentFlags().StringSliceVar(&globalFlags.Endpoints, "endpoints", []string{"127.0.0.1:2379"}, "gRPC endpoints")
-	rootCmd.PersistentFlags().DurationVar(&globalFlags.DialTimeout, "dial-timeout", defaultDialTimeout, "dial timeout for client connections")
-
-	rootCmd.AddCommand(
-		command.NewElectionCommand(),
-		command.NewLeaseRenewerCommand(),
-		command.NewLockRacerCommand(),
-		command.NewWatchCommand(),
-	)
-}
-
-func init() {
-	cobra.EnablePrefixMatching = true
-}
-
-func Start() {
-	rootCmd.SetUsageFunc(usageFunc)
-
-	// Make help just show the usage
-	rootCmd.SetHelpTemplate(`{{.UsageString}}`)
-
-	if err := rootCmd.Execute(); err != nil {
-		command.ExitWithError(command.ExitError, err)
-	}
-}
+import "github.com/coreos/etcd/tools/functional-tester/etcd-runner/command"
 
 func main() {
-	Start()
+	command.Start()
 }