Function printPage

cmd/bbolt/command/command_page.go:80–115

printPage prints given page to cmd.Stdout and returns error or number of interpreted pages.

(cmd *cobra.Command, path string, pageID uint64, formatValue string)

// printPage prints given page to cmd.Stdout and returns error or number of interpreted pages.
func printPage(cmd *cobra.Command, path string, pageID uint64, formatValue string) (numPages uint32, reterr error) {
	defer func() {
		if err := recover(); err != nil {
			reterr = fmt.Errorf("%s", err)
		}
	}()

	// retrieve page info and page size.
	p, buf, err := guts_cli.ReadPage(path, pageID)
	if err != nil {
		return 0, err
	}

	// print basic page info.
	stdout := cmd.OutOrStdout()
	fmt.Fprintf(stdout, "Page ID:    %d\n", p.Id())
	fmt.Fprintf(stdout, "Page Type:  %s\n", p.Typ())
	fmt.Fprintf(stdout, "Total Size: %d bytes\n", len(buf))
	fmt.Fprintf(stdout, "Overflow pages: %d\n", p.Overflow())

	// print type-specific data.
	switch p.Typ() {
	case "meta":
		err = pagePrintMeta(stdout, buf)
	case "leaf":
		err = pagePrintLeaf(stdout, buf, formatValue)
	case "branch":
		err = pagePrintBranch(stdout, buf)
	case "freelist":
		err = pagePrintFreelist(stdout, buf)
	}
	if err != nil {
		return 0, err
	}
	return p.Overflow(), nil
}

func printAllPages(cmd *cobra.Command, path string, formatValue string) {
	_, hwm, err := guts_cli.ReadPageAndHWMSize(path)