fixup! go-template/_template/internal/log: swapped zap logger with lo…

…g/slog; added trace context handler; added gRPC interceptor logger

_template/internal/log/logger.go

@@ -50,6 +50,17 @@ func New(opts ...Option) *slog.Logger {
  return logger
 }
 
+// FromHandler initializes a logger with the provided slog.Handler interface.
+//
+// If the provided handler is nil, the function returns a no-op slog.Logger.
+func FromHandler(handler slog.Handler) *slog.Logger {
+ if handler == nil {
+ return NoOp()
+ }
+
+ return slog.New(NewSpanContextHandler(handler, true))
+}
+
 func NoOp() *slog.Logger {
  return slog.New(noOpHandler{})
 }

_template/internal/log/logger_option.go

@@ -22,16 +22,6 @@ func (o OptionFunc) apply(c *Config) {
  o(c)
 }
 
-func WithHandler(handler slog.Handler) OptionFunc {
- if handler == nil {
- return func(*Config) {}
- }
-
- return func(config *Config) {
- config.handler = handler
- }
-}
-
 func WithWriter(writer io.Writer) OptionFunc {
  if writer == nil {
  return func(*Config) {}