try to add version

app/main.go

@@ -13,12 +13,15 @@ import (
 	"github.com/yedf/dtm/examples"
 )
 
+var Version, Commit, Date string
+
 var usage = `dtm is a lightweight distributed transaction manager.
 
 usage:
     dtm [command]
 
 Available commands:
+    version           print dtm version
     dtmsvr            run dtm as a server
     dev               create all needed table and run dtm as a server
     bench             start bench server
@@ -35,6 +38,10 @@ func main() {
 		}
 		return
 	}
+	if os.Args[1] == "version" {
+		fmt.Printf("version: %s commit: %s built at: %s\n", Version, Commit, Date)
+		return
+	}
 	dtmcli.SetCurrentDBType(common.DtmConfig.DB["driver"])
 	if os.Args[1] != "dtmsvr" { // 实际线上运行，只启动dtmsvr，不准备table相关的数据
 		common.WaitDBUp()

common/types.go

@@ -140,7 +140,7 @@ func getIntEnv(key string, defaultV string) int64 {
 }
 
 func init() {
-	if len(os.Args) == 1 {
+	if len(os.Args) == 1 || os.Args[1] == "version" {
 		return
 	}
 	DtmConfig.TransCronInterval = getIntEnv("TRANS_CRON_INTERVAL", "3")
@@ -167,7 +167,7 @@ func init() {
 		}
 	}
 	if len(cont) != 0 {
-		dtmimp.Logf("cont is: \n%s", string(cont))
+		dtmimp.Logf("config is: \n%s", string(cont))
 		err := yaml.Unmarshal(cont, &DtmConfig)
 		dtmimp.FatalIfError(err)
 	}

helper/.goreleaser.yml

@@ -11,3 +11,5 @@ builds:
     id: 'dtm'
     dir: .
     main: ./app/main.go
+    ldflags:
+      - -s -w -X main.Version={{.Version}} -X main.Commit={{.Commit}} -X main.Date={{.Date}}

helper/Dockerfile-release

@@ -3,8 +3,7 @@ WORKDIR /app/dtm
 # RUN go env -w GOPROXY=https://mirrors.aliyun.com/goproxy/,direct
 EXPOSE 8080
 COPY . .
-RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" app/main.go
-RUN apk add upx && upx main
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" app/main.go && apk add upx && upx main
 
 FROM alpine:3.14 as runner
 COPY --from=builder /app/dtm/main /app/dtm/