func NewContext()

in pkg/xcontext/context.go [249:309]

• 56 lines of code
• 16 McCabe index (conditional complexity)

func NewContext(
	stdCtx context.Context,
	traceID TraceID,
	loggerInstance Logger,
	metrics Metrics,
	tracer Tracer,
	tags Fields,
	fields Fields,
) Context {
	if traceID == "" {
		traceID = NewTraceID()
	}
	if loggerInstance == nil {
		loggerInstance = logger.Dummy()
	}

	ctx := &ctxValue{
		traceIDValue: traceID,
		debugTools: &debugTools{
			loggerInstance:  loggerInstance,
			metricsInstance: metrics,
			tracerInstance:  tracer,
		},
	}

	if stdCtx != nil && stdCtx != context.Background() {
		ctx = ctx.cloneWithStdContext(stdCtx).(*ctxValue)
	}

	if tags == nil {
		tags = Fields{}
		if buildinfo.BuildMode != "" {
			tags["buildMode"] = buildinfo.BuildMode
		}
		if buildinfo.BuildDate != "" {
			tags["buildDate"] = buildinfo.BuildDate
		}
		if buildinfo.Revision != "" {
			tags["revision"] = buildinfo.Revision
		}
		if DefaultLogHostname && hostname != "" {
			tags["hostname"] = hostname
		}
		if DefaultLogUsername && curUser != nil {
			tags["username"] = curUser.Name
		}
	}
	if len(tags) > 0 {
		ctx.debugTools.pendingTags.AddMultiple(tags)
	}

	if fields == nil {
		fields = Fields{}
	}
	if DefaultLogTraceID {
		fields["traceID"] = traceID
	}
	ctx.debugTools.pendingFields.AddMultiple(fields)

	return ctx
}