[fix] gen version at compile time

Signed-off-by: freemandealer <freeman.zhang1992@gmail.com>

.github/workflows/go.yml

@@ -37,4 +37,4 @@ jobs:
         go-version: '1.20'
 
     - name: Build
-      run: go build -v
+      run: sh build.sh

README.md

@@ -74,7 +74,7 @@ yum install golang
 Then, navigate to the doris-streamloader directory and execute:
 
 ```
-cd doris-streamloader && go build
+cd doris-streamloader && sh build.sh
 ```
 
 

build.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+go generate
+go build

gen_version.go

@@ -0,0 +1,65 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.
+
+//go:build generate
+// +build generate
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func main() {
+	commit, err := getGitCommit()
+	if err != nil {
+		fmt.Println("Error getting Git commit:", err)
+		os.Exit(1)
+	}
+
+	tag, err := getGitTag()
+	if err != nil {
+		fmt.Println("Error getting Git tag:", err)
+		os.Exit(1)
+	}
+
+	content := fmt.Sprintf("// Code generated by go generate; DO NOT EDIT.\n\npackage main\n\nvar (\n\tGitCommit = \"%s\"\n\tVersion = \"%s\"\n)\n", commit, tag)
+
+	if err := os.WriteFile("version.go", []byte(content), 0644); err != nil {
+		fmt.Println("Error writing version.go:", err)
+		os.Exit(1)
+	}
+}
+
+func getGitCommit() (string, error) {
+	out, err := exec.Command("git", "rev-parse", "HEAD").Output()
+	if err != nil {
+		return "", err
+	}
+	return strings.Split(string(out), "\n")[0], nil
+}
+
+func getGitTag() (string, error) {
+	out, err := exec.Command("git", "describe", "--tags", "--abbrev=0").Output()
+	if err != nil {
+		return "", err
+	}
+	return strings.Split(string(out), "\n")[0], nil
+}

main.go

@@ -22,14 +22,13 @@ import (
 	"fmt"
 	"math"
 	"os"
-	"os/exec"
 	"strconv"
 	"strings"
 	"sync"
 	"time"
 
 	"doris-streamloader/loader"
-	"doris-streamloader/reader"
+	file "doris-streamloader/reader"
 	"doris-streamloader/report"
 	"doris-streamloader/utils"
 
@@ -188,17 +187,11 @@ func initFlags() {
 	utils.InitLog(logLevel)
 }
 
+//go:generate go run gen_version.go
 func paramCheck() {
 	if showVersion {
-		var err error
-		commitHash, err := getCommitHash()
-		if err != nil {
-			log.Warn("Failed to get commit info", err)
-		}
-		version, err := getTag()
-		if err != nil {
-			log.Warn("Failed to get version info", err)
-		}
+		commitHash := GitCommit
+		version := Version
 		fmt.Printf("version %s, git commit %s\n", version, commitHash)
 		os.Exit(0)
 	}
@@ -332,30 +325,6 @@ func createQueues(queues *[]chan []byte) {
 	}
 }
 
-func getCommitHash() (string, error) {
-	cmd := exec.Command("git", "rev-parse", "HEAD")
-	outputBytes, err := cmd.Output()
-	if err != nil {
-		return "", err
-	}
-
-	commitHash := string(outputBytes)
-	commitHash = strings.TrimSpace(commitHash)
-
-	return commitHash, nil
-}
-
-func getTag() (string, error) {
-	cmd := exec.Command("git", "describe", "--tags", "--abbrev=0")
-	output, err := cmd.Output()
-	if err != nil {
-		return "", err
-	}
-
-	tag := strings.TrimSpace(string(output))
-	return tag, nil
-}
-
 func main() {
 	initFlags()
 	retryCount := 0