Daily Log Naming

The logger uses date-based file naming to organize log output by day and rotation sequence.

Each generated log file includes:

the current date
a sequential rotation number

Example file names:

2026-05-11-0001.log
2026-05-11-0002.log
2026-05-12-0001.log

This naming strategy makes it easier to:

identify logs by date
track rotated files
archive logs
debug production incidents
integrate with external log processing systems

Example configuration:

package main

import (
	"log/slog"

	"github.com/netlifeguru/logger"
)

func main() {
	closer, err := logger.Init(logger.Config{
		Dir:         "./logs",
		MaxFileSize: 10 * 1024 * 1024,
	})

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

	defer closer.Close()

	slog.Info("application started")
}

Generated directory structure:

logs/
├── 2026-05-11-0001.log
├── 2026-05-11-0002.log
└── 2026-05-12-0001.log

The sequence number increases automatically whenever file rotation occurs during the same day.

A new daily sequence starts automatically after the date changes.