Function LoggerFor

acceptance/log/log.go:158–180

LoggerFor returns the logger for the provided Context. Each call for a new context creates a per-scenario temp file for log isolation.

(ctx context.Context)

// LoggerFor returns the logger for the provided Context. Each call for
// a new context creates a per-scenario temp file for log isolation.
func LoggerFor(ctx context.Context) (Logger, context.Context) {
	if logger, ok := ctx.Value(loggerKey).(Logger); ok {
		return logger, ctx
	}

	id := counter.Add(1)

	f, err := os.CreateTemp("", fmt.Sprintf("scenario-%010d-*.log", id))
	if err != nil {
		panic(fmt.Sprintf("failed to create scenario log file: %v", err))
	}

	delegate := &fileLogger{file: f}

	logger := logger{
		t:    delegate,
		id:   id,
		name: "*",
		path: f.Name(),
	}

	return &logger, context.WithValue(ctx, loggerKey, &logger)
}