add logrotate out plugin

[SagiROosto]

No description provided.

[Copilot]

Pull Request Overview

This PR adds a new output plugin out_logrotate to Fluent Bit that provides file output with automatic log rotation capabilities. The plugin extends the basic file output functionality with features like file size-based rotation, automatic compression, and cleanup of old rotated files.

• Adds logrotate output plugin with rotation, compression, and cleanup features
• Implements comprehensive test suite with multiple test scenarios
• Adds CMake build configuration and plugin registration

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 13 comments.

Show a summary per file

File	Description
plugins/out_logrotate/logrotate.c	Main plugin implementation with rotation logic, compression, and file management
plugins/out_logrotate/logrotate.h	Plugin header with format enum definitions
plugins/out_logrotate/CMakeLists.txt	Build configuration for the plugin
tests/runtime/out_logrotate.c	Comprehensive test suite with 7 test cases
tests/runtime/CMakeLists.txt	Test registration configuration
plugins/CMakeLists.txt	Plugin registration in main build system
cmake/plugins_options.cmake	Build option definition for the plugin
conf/fluent-bit-logrotate.conf	Example configuration file

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[Copilot]

The localtime() function returns a pointer to static data that can be overwritten by subsequent calls in multi-threaded environments. Use localtime_r() for thread safety.

Suggested change

	struct tm *tm_info = localtime(&now);
	char timestamp[32];
	strftime(timestamp, sizeof(timestamp), "%Y%m%d_%H%M%S", tm_info);
	struct tm tm_info;
	char timestamp[32];
	localtime_r(&now, &tm_info);
	strftime(timestamp, sizeof(timestamp), "%Y%m%d_%H%M%S", &tm_info);

[yuvalDOosto]

Reviewed it together and made the edits on spot :)