add pid path

conf/redis-shake.conf

@@ -2,8 +2,10 @@
 
 # id
 id = redis-shake
-# log file，日志文件，不配置将打印到stdout
+# log file，日志文件，不配置将打印到stdout (e.g. /var/log/redis-shake.log )
 log_file =
+# pid path，进程文件存储地址，不配置将输出到项目目录下 （e.g. /var/run/ )
+pid_path =
 
 # pprof port
 system_profile = 9310

src/redis-shake/common/mix.go

@@ -22,8 +22,13 @@ func WritePid(id string) (err error) {
 	return nil
 }
 
-func WritePidById(id string) error {
-	dir, _ := os.Getwd()
+func WritePidById(id string, path string) error {
+	var dir string
+	if path == "" {
+		dir, _ = os.Getwd()
+	} else {
+		dir = path
+	}
 	pidfile := filepath.Join(dir, id) + ".pid"
 	if err := WritePid(pidfile); err != nil {
 		return err

src/redis-shake/configure/configure.go

@@ -40,6 +40,7 @@ type Configuration struct {
 	SenderCount               uint     `config:"sender.count"`
 	SenderDelayChannelSize    uint     `config:"sender.delay_channel_size"`
 	KeepAlive                 uint     `config:"keep_alive"`
+	PidPath                   string   `config:"pid_path"`
 
 	// inner variables
 	ReplaceHashTag bool   `config:"replace_hash_tag"`

src/redis-shake/main/main.go

@@ -5,28 +5,28 @@
 package main
 
 import (
+	"encoding/json"
 	"flag"
 	"fmt"
+	"math"
+	_ "net/http/pprof"
 	"os"
 	"os/signal"
-	"syscall"
-	"runtime/debug"
-	"time"
+	"reflect"
 	"runtime"
-	"math"
-	_ "net/http/pprof"
-	"strings"
+	"runtime/debug"
 	"strconv"
-	"encoding/json"
-	"reflect"
+	"strings"
+	"syscall"
+	"time"
 
+	"pkg/libs/log"
+	"redis-shake"
+	"redis-shake/base"
 	"redis-shake/common"
 	"redis-shake/configure"
 	"redis-shake/metric"
-	"redis-shake"
-	"redis-shake/base"
 	"redis-shake/restful"
-	"pkg/libs/log"
 
 	"github.com/gugemichael/nimo4go"
 	logRotate "gopkg.in/natefinch/lumberjack.v2"
@@ -83,7 +83,7 @@ func main() {
 	utils.Welcome()
 	utils.StartTime = fmt.Sprintf("%v", time.Now().Format(utils.GolangSecurityTime))
 
-	if err = utils.WritePidById(conf.Options.Id); err != nil {
+	if err = utils.WritePidById(conf.Options.Id, conf.Options.PidPath); err != nil {
 		crash(fmt.Sprintf("write pid failed. %v", err), -5)
 	}