func GenerateTree(cmd *cobra.Command, dir string, specs []string, front_matter, base_url string) {
	filePrepender := func(s string) string {
		s = strings.Replace(s, dir, "", 1)
		s = strings.Replace(s, ".md", "", -1)
		s = strings.Replace(s, "_", " ", -1)
		pre := strings.Replace(front_matter, "{{}}", s, -1)
		return pre
	}

	linkHandler := func(s string) string {
		s = strings.Replace(s, ".md", "/", -1)
		link := base_url + s
		return link
	}

	for _, c := range cmd.Commands() {
		GenerateTree(c, dir, specs, front_matter, base_url)
	}
	out := new(bytes.Buffer)

	GenerateSingle(cmd, out, linkHandler, specs, dir)

	filename := cmd.CommandPath()
	filename = dir + strings.Replace(filename, " ", "_", -1) + ".md"
	outFile, err := os.Create(filename)
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
	defer outFile.Close()

	_, err = outFile.WriteString(filePrepender(filename))
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
	_, err = outFile.Write(out.Bytes())
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}
func GenerateSingle(cmd *cobra.Command, out *bytes.Buffer, linkHandler func(string) string, specs []string, render_dir string) {
	name := cmd.CommandPath()

	short := cmd.Short
	long := cmd.Long
	if len(long) == 0 {
		long = short
	}

	fmt.Fprintf(out, "# %s\n\n", name)
	fmt.Fprintf(out, "%s\n\n", short)
	fmt.Fprintf(out, "## Synopsis\n")
	fmt.Fprintf(out, "\n%s\n\n", long)

	if cmd.Runnable() {
		fmt.Fprintf(out, "```bash\n%s\n```\n\n", cmd.UseLine())
	}

	if len(cmd.Example) > 0 {
		fmt.Fprintf(out, "## Examples\n\n")
		fmt.Fprintf(out, "```bash\n%s\n```\n\n", cmd.Example)
	}

	flags := cmd.NonInheritedFlags()
	flags.SetOutput(out)
	if flags.HasFlags() {
		fmt.Fprintf(out, "## Options\n\n```\n")
		flags.PrintDefaults()
		fmt.Fprintf(out, "```\n\n")
	}

	parentFlags := cmd.InheritedFlags()
	parentFlags.SetOutput(out)
	if parentFlags.HasFlags() {
		fmt.Fprintf(out, "## Options inherited from parent commands\n\n```\n")
		parentFlags.PrintDefaults()
		fmt.Fprintf(out, "```\n\n")
	}

	if len(cmd.Commands()) > 0 {
		fmt.Fprintf(out, "## Subcommands\n\n")
		children := cmd.Commands()
		sort.Sort(byName(children))

		for _, child := range children {
			if len(child.Deprecated) > 0 {
				continue
			}
			cname := name + " " + child.Name()
			link := cname + ".md"
			link = strings.Replace(link, " ", "_", -1)
			fmt.Fprintf(out, "* [%s](%s)\t - %s\n", cname, linkHandler(link), child.Short)
		}
	}

	if len(cmd.Commands()) > 0 && cmd.HasParent() {
		fmt.Fprintf(out, "\n")
	}

	if cmd.HasParent() {
		fmt.Fprintf(out, "## See Also\n\n")
		parent := cmd.Parent()
		pname := parent.CommandPath()
		link := pname + ".md"
		link = strings.Replace(link, " ", "_", -1)
		fmt.Fprintf(out, "* [%s](%s)\t - %s\n", pname, linkHandler(link), parent.Short)
	}

	fmt.Fprintf(out, "\n## Specifications\n\n")
	for _, spec := range specs {
		spec = strings.Replace(spec, render_dir, "", 1)
		title := strings.Replace(spec, "_", " ", -1)
		title = strings.Replace(title, ".md", "", 1)
		// title = strings.Replace(title, "spec", "specification", 1)
		title = strings.Title(title)
		fmt.Fprintf(out, "* [%s](%s)\n", title, linkHandler(spec))
	}

	fmt.Fprintf(out, "\n")
}