Automatic Cleanup

The logger automatically removes old rotated log files to prevent uncontrolled disk usage.

Cleanup behavior is controlled through the MaxLogFiles configuration option, which defines the maximum number of managed log files kept on disk.

Example configuration:

package main

import (
	"log/slog"

	"github.com/netlifeguru/logger"
)

func main() {
	closer, err := logger.Init(logger.Config{
		Dir:         "./logs",
		MaxLogFiles: 5,
	})

	if err != nil {
		slog.Error(err.Error())
	}

	defer closer.Close()

	slog.Info("logger initialized")
}

Example directory before cleanup:

logs/
├── 2026-05-08-0001.log
├── 2026-05-09-0001.log
├── 2026-05-10-0001.log
├── 2026-05-11-0001.log
├── 2026-05-11-0002.log
├── 2026-05-11-0003.log
└── 2026-05-11-0004.log

After cleanup:

logs/
├── 2026-05-10-0001.log
├── 2026-05-11-0001.log
├── 2026-05-11-0002.log
├── 2026-05-11-0003.log
└── 2026-05-11-0004.log

Cleanup runs automatically during log rotation and removes the oldest managed log files first.

This helps:

reduce disk usage
simplify maintenance
avoid oversized log directories
keep deployments predictable over time

Default value:

MaxLogFiles: 5