status-im/status-go

package logutils

import (
    "gopkg.in/natefinch/lumberjack.v2"

    "github.com/ethereum/go-ethereum/log"
)

// FileOptions are all options supported by internal rotation module.
type FileOptions struct {
    // Base name for log file.
    Filename string
    // Size in megabytes.
    MaxSize int
    // Number of rotated log files.
    MaxBackups int
    // If true rotated log files will be gzipped.
    Compress bool
}

// FileHandlerWithRotation instantiates log.Handler with a configured rotation
func FileHandlerWithRotation(opts FileOptions, format log.Format) log.Handler {
    logger := &lumberjack.Logger{
        Filename:   opts.Filename,
        MaxSize:    opts.MaxSize,
        MaxBackups: opts.MaxBackups,
        Compress:   opts.Compress,
    }
    return log.StreamHandler(logger, format)
}