减少bug

.gitignore

+backup
+Deviceld.txt
+log
+main
\ No newline at end of file

goproject/go.mod

@@ -2,7 +2,6 @@ module example.com/OTAdevice
 
 go 1.21.5
 
-require (
-	github.com/go-resty/resty/v2 v2.16.5 // indirect
-	golang.org/x/net v0.33.0 // indirect
-)
+require github.com/go-resty/resty/v2 v2.16.5
+
+require golang.org/x/net v0.33.0 // indirect

goproject/go.sum

@@ -2,3 +2,5 @@ github.com/go-resty/resty/v2 v2.16.5 h1:hBKqmWrr7uRc3euHVqmh1HTHcKn99Smr7o5spptd
 github.com/go-resty/resty/v2 v2.16.5/go.mod h1:hkJtXbA2iKHzJheXYvQ8snQES5ZLGKMwQ07xAwp/fiA=
 golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=
 golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
+golang.org/x/time v0.6.0 h1:eTDhh4ZXt5Qf0augr54TN6suAUudPcawVZeIAPU7D4U=
+golang.org/x/time v0.6.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=

goproject/main.go

@@ -93,7 +93,7 @@ func main() {
 
 
 	for {
-		time.Sleep(1 * time.Minute)
+		time.Sleep(10 * time.Second)
 		// 从 conf 文件中读取上次的版本号
 		lastVersion, err := readVersionFromConf(confPath)
 		if err != nil {
@@ -228,13 +228,42 @@ func startCarStartService() error {
 	return nil
 }
 
-// 备份当前版本文件
 func backupCurrentVersion(downloadPath, backupDir, version string) error {
-	if _, err := os.Stat(backupDir); os.IsNotExist(err) {
-		os.MkdirAll(backupDir, 0755)
+    // 1. 确保备份目录存在且可写
+    if err := os.MkdirAll(backupDir, 0755); err != nil {
+        return fmt.Errorf("failed to create backup directory: %v", err)
+    }
+    if err := os.WriteFile(filepath.Join(backupDir, ".test"), []byte(""), 0644); err != nil {
+        return fmt.Errorf("backup directory is not writable: %v", err)
+    }
+    os.Remove(filepath.Join(backupDir, ".test"))
+
+    // 2. 移动文件到备份目录（临时名称，避免冲突）
+    tempPath := filepath.Join(backupDir, fmt.Sprintf("main_%d.tmp", time.Now().UnixNano()))
+    if err := os.Rename(downloadPath, tempPath); err != nil {
+        // 跨文件系统回退方案
+        if err := copyFile(downloadPath, tempPath); err != nil {
+            return fmt.Errorf("failed to move/copy file: %v", err)
         }
+        os.Remove(downloadPath)
+    }
+
+    // 3. 重命名为最终版本名称
     backupPath := filepath.Join(backupDir, "main_"+version)
-	return os.Rename(downloadPath, backupPath)
+    if err := os.Rename(tempPath, backupPath); err != nil {
+        return fmt.Errorf("failed to rename backup file: %v", err)
+    }
+
+    return nil
+}
+
+// 跨文件系统的复制函数
+func copyFile(src, dst string) error {
+    input, err := os.ReadFile(src)
+    if err != nil {
+        return err
+    }
+    return os.WriteFile(dst, input, 0644)
 }
 
 // 恢复备份文件