package logger import ( "context" "sync" "github.com/sirupsen/logrus" ) var ( defaultLogger Logger mu sync.RWMutex ) type log struct{} func init() { defaultLogger = &logger{fl: logrus.New()} } var C = From func SetDefault(logger Logger) { mu.Lock() defer mu.Unlock() defaultLogger = logger } func Set(ctx context.Context, logger Logger) context.Context { return context.WithValue(ctx, log{}, logger) } func From(ctx context.Context) Logger { log, ok := ctx.Value(log{}).(Logger) if ok { return log } if defaultLogger != nil { return defaultLogger } logr := New() mu.Lock() defer mu.Unlock() defaultLogger = logr return defaultLogger }