func()

in pkg/printers/tableprinter.go [95:167]
54 lines of code
19 McCabe index (conditional complexity)

func (h *HumanReadablePrinter) PrintObj(obj runtime.Object, output io.Writer) error {

	if _, found := output.(*tabwriter.Writer); !found {
		w := GetNewTabWriter(output)
		output = w
		defer w.Flush()
	}

	var eventType string
	if event, isEvent := obj.(*metav1.WatchEvent); isEvent {
		eventType = event.Type
		obj = event.Object.Object
	}

	// Parameter "obj" is a table from server; print it.
	// display tables following the rules of options
	if table, ok := obj.(*metav1.Table); ok {
		// Do not print headers if this table has no column definitions, or they are the same as the last ones we printed
		localOptions := h.options
		if h.printedHeaders && (len(table.ColumnDefinitions) == 0 || reflect.DeepEqual(table.ColumnDefinitions, h.lastColumns)) {
			localOptions.NoHeaders = true
		}

		if len(table.ColumnDefinitions) == 0 {
			// If this table has no column definitions, use the columns from the last table we printed for decoration and layout.
			// This is done when receiving tables in watch events to save bandwidth.
			table.ColumnDefinitions = h.lastColumns
		} else if !reflect.DeepEqual(table.ColumnDefinitions, h.lastColumns) {
			// If this table has column definitions, remember them for future use.
			h.lastColumns = table.ColumnDefinitions
			h.printedHeaders = false
		}

		if len(table.Rows) > 0 {
			h.printedHeaders = true
		}

		if err := decorateTable(table, localOptions); err != nil {
			return err
		}
		if len(eventType) > 0 {
			if err := addColumns(beginning, table,
				[]metav1.TableColumnDefinition{{Name: "Event", Type: "string"}},
				[]cellValueFunc{func(metav1.TableRow) (interface{}, error) { return formatEventType(eventType), nil }},
			); err != nil {
				return err
			}
		}
		return printTable(table, output, localOptions)
	}

	// Could not find print handler for "obj"; use the default or status print handler.
	// Print with the default or status handler, and use the columns from the last time
	var handler *printHandler
	if _, isStatus := obj.(*metav1.Status); isStatus {
		handler = statusHandlerEntry
	} else {
		handler = defaultHandlerEntry
	}

	includeHeaders := h.lastType != handler && !h.options.NoHeaders

	if h.lastType != nil && h.lastType != handler && !h.options.NoHeaders {
		fmt.Fprintln(output)
	}

	if err := printRowsForHandlerEntry(output, handler, eventType, obj, h.options, includeHeaders); err != nil {
		return err
	}
	h.lastType = handler

	return nil
}