Upgrade to meshery/[email protected]

[leecalcote]

Signed-off-by: Mericio [email protected]

[gemini-code-assist]

Summary of Changes

Hello @leecalcote, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request primarily focuses on updating a core dependency, meshery/schemas, to its latest version. Concurrently, it introduces significant improvements to the application's logging infrastructure by implementing explicit resource management for log files, which helps prevent file handle leaks. Additionally, it refactors connection status constants to use more descriptive and current definitions, contributing to overall code clarity and robustness.

Highlights

• Dependency Upgrade: The github.com/meshery/schemas dependency has been upgraded from version v0.8.94 to v0.8.113.
• Logging Resource Management: Introduced package-level file handles for logging and a new CloseLogger() function to ensure proper closure of log files, preventing potential resource leaks.
• Connection Status Constant Update: Updated connection status constants from connection.Registered and connection.Discovered to their more explicit counterparts, connection.ConnectionStatusRegistered and connection.ConnectionStatusDiscovered, respectively.
• Improved Logger Error Handling: Enhanced the SetLogger function to gracefully handle errors during log file creation by ensuring that any already opened log files are closed if a subsequent file creation fails.

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[gemini-code-assist]

Code Review

This pull request upgrades meshery/schemas and introduces changes to the logging file handling. The dependency upgrade and the related constant renames are correct. The improvements to the logger to handle file leaks are a good step. However, the introduction of package-level file handles for logs is not thread-safe and can lead to resource leaks if SetLogger is called multiple times. I've added comments with suggestions to introduce a mutex to protect the shared state and prevent these issues.

[gemini-code-assist]

Introducing logFile and errorLogFile as package-level variables creates shared state. To prevent race conditions from concurrent access by SetLogger (in model.go) and CloseLogger, you should protect these variables with a sync.Mutex.

	// logFile and errorLogFile are the file handles for the log files
	// They are stored at package level to allow proper cleanup
	logFile      *os.File
	errorLogFile *os.File
	logMutex     sync.Mutex

[gemini-code-assist]

To ensure thread safety when closing the log files, you should lock the mutex that protects logFile and errorLogFile.

Additionally, SetLogger in registry/model.go should also be updated to use this mutex and to close any previously opened file handles to prevent resource leaks if it's called multiple times.

Example for SetLogger:

func SetLogger(ismultiWriter bool) error {
    logMutex.Lock()
    defer logMutex.Unlock()

    if logFile != nil {
        _ = logFile.Close()
    }
    if errorLogFile != nil {
        _ = errorLogFile.Close()
    }
    // ... rest of the function
}

func CloseLogger() {
	logMutex.Lock()
	defer logMutex.Unlock()
	if logFile != nil {
		_ = logFile.Close()
		logFile = nil
	}
	if errorLogFile != nil {
		_ = errorLogFile.Close()
		errorLogFile = nil
	}
}