3
0
corteza/pkg/logger/logger.go
2020-01-18 07:05:10 +01:00

91 lines
1.6 KiB
Go

package logger
import (
"os"
"time"
// Make sure we read the ENV from .env
_ "github.com/joho/godotenv/autoload"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"github.com/cortezaproject/corteza-server/pkg/app/options"
)
var (
DefaultLevel = zap.NewAtomicLevel()
defaultLogger = zap.NewNop()
)
func MakeDebugLogger() *zap.Logger {
conf := zap.NewDevelopmentConfig()
conf.Level = DefaultLevel
// Print log level in colors
conf.EncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
// Shorten timestamp, we do not care about the date
conf.EncoderConfig.EncodeTime = func(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
enc.AppendString(t.Format("15:04:05.000"))
}
logger, err := conf.Build()
if err != nil {
panic(err)
}
return logger
}
func Init() {
var (
err error
// Set INFO as defaut log level
logLevel = zapcore.InfoLevel
// Do we want to enable debug logger
// with a bit more dev-friendly output
debuggingLogger = options.EnvBool("", "LOG_DEBUG", false)
)
if debuggingLogger {
logLevel = zapcore.DebugLevel
}
if ll, has := os.LookupEnv("LOG_LEVEL"); has {
_ = logLevel.Set(ll)
}
DefaultLevel.SetLevel(logLevel)
if debuggingLogger {
defaultLogger = MakeDebugLogger()
return
}
conf := zap.NewProductionConfig()
conf.Level = DefaultLevel
// We do not want sampling
conf.Sampling = nil
defaultLogger, err = conf.Build()
if err != nil {
panic(err)
}
}
func Default() *zap.Logger {
return defaultLogger
}
func SetDefault(logger *zap.Logger) {
if logger == nil {
logger = zap.NewNop()
}
defaultLogger = logger
}