5f2244d25d
* glog: add gzip compression for rotated log files Add opt-in gzip compression that automatically compresses log files after rotation, reducing disk usage in long-running deployments. - Add --log_compress flag to enable compression at startup - Add SetCompressRotated()/IsCompressRotated() for runtime toggle - Compress rotated files in background goroutine (non-blocking) - Use gzip.BestSpeed for minimal CPU overhead - Fix .gz file cleanup: TrimSuffix approach correctly counts compressed files toward MaxFileCount limit - Include 6 unit tests covering normal, empty, large, and edge cases Enabled via --log_compress flag. Default behavior unchanged. * glog: fix compressFile to check gz/dst close errors and use atomic rename Write to a temp file (.gz.tmp) and rename atomically to prevent exposing partial archives. Check gz.Close() and dst.Close() errors to avoid deleting the original log when flush fails (e.g. ENOSPC). Use defer for robust resource cleanup. * glog: deduplicate .log/.log.gz pairs in rotation cleanup During concurrent compression, both foo.log and foo.log.gz can exist simultaneously. Count them as one entry against MaxFileCount to prevent premature eviction of rotated logs. * glog: use portable temp path in TestCompressFile_NonExistent Replace hardcoded /nonexistent/path with t.TempDir() for portability. --------- Co-authored-by: Copilot <copilot@github.com>
3.4 KiB
3.4 KiB