/
logger.go
65 lines (52 loc) · 1.39 KB
/
logger.go
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// Package logger provides logger functionality (using zap logger instead).
package logger
import (
"os"
"github.com/natefinch/lumberjack"
"github.com/teploff/antibruteforce/config"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
const (
maxBackups = 3
maxAge = 3
)
type Option func(logger *zap.Logger) *zap.Logger
func New(dev bool, cfg *config.LoggerConfig, opts ...Option) *zap.Logger {
var options []zap.Option
prodConfig := zap.NewProductionEncoderConfig()
prodConfig.TimeKey = "T"
prodConfig.EncodeTime = zapcore.ISO8601TimeEncoder
encoder := zapcore.NewConsoleEncoder(prodConfig)
write := zapcore.AddSync(&lumberjack.Logger{
Filename: cfg.Filename,
MaxSize: cfg.MaxSize, // megabytes
MaxBackups: maxBackups, // old logs
MaxAge: maxAge, // days
Compress: true,
})
if dev {
encoder = zapcore.NewConsoleEncoder(zap.NewDevelopmentEncoderConfig())
write = os.Stdout
options = append(options, zap.AddStacktrace(zap.ErrorLevel))
options = append(options, zap.Development())
}
core := zapcore.NewCore(
encoder,
write,
getLogLevel(cfg.Level),
)
logger := zap.New(core, options...)
for _, opt := range opts {
logger = opt(logger)
}
return logger
}
// Unmarshal text to a zap level notation.
//
// level - text logging notation.
func getLogLevel(level string) zapcore.Level {
lvl := zap.DebugLevel
_ = lvl.UnmarshalText([]byte(level))
return lvl
}