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doc: Cleanup md_docs

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Performance gain:
benchmark                        old ns/op     new ns/op     delta
BenchmarkGenMarkdownToFile-4     23096         10295         -55.43%

benchmark                        old allocs     new allocs     delta
BenchmarkGenMarkdownToFile-4     47             48             +2.13%

benchmark                        old bytes     new bytes     delta
BenchmarkGenMarkdownToFile-4     1984          2832          +42.74%
This commit is contained in:
Albert Nigmatzianov 2017-04-24 20:42:49 +02:00
parent de484eefb4
commit 97af803f3b
2 changed files with 41 additions and 53 deletions
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77
doc/md_docs.go
View file

@ -14,6 +14,7 @@
package doc
import (
"bytes"
"fmt"
"io"
"os"
@ -25,29 +26,21 @@ import (
"github.com/spf13/cobra"
)
func printOptions(w io.Writer, cmd *cobra.Command, name string) error {
func printOptions(buf *bytes.Buffer, cmd *cobra.Command, name string) error {
flags := cmd.NonInheritedFlags()
flags.SetOutput(w)
flags.SetOutput(buf)
if flags.HasFlags() {
if _, err := fmt.Fprintf(w, "### Options\n\n```\n"); err != nil {
return err
}
buf.WriteString("### Options\n\n```\n")
flags.PrintDefaults()
if _, err := fmt.Fprintf(w, "```\n\n"); err != nil {
return err
}
buf.WriteString("```\n\n")
}
parentFlags := cmd.InheritedFlags()
parentFlags.SetOutput(w)
parentFlags.SetOutput(buf)
if parentFlags.HasFlags() {
if _, err := fmt.Fprintf(w, "### Options inherited from parent commands\n\n```\n"); err != nil {
return err
}
buf.WriteString("### Options inherited from parent commands\n\n```\n")
parentFlags.PrintDefaults()
if _, err := fmt.Fprintf(w, "```\n\n"); err != nil {
return err
}
buf.WriteString("```\n\n")
}
return nil
}
@ -59,6 +52,7 @@ func GenMarkdown(cmd *cobra.Command, w io.Writer) error {
// GenMarkdownCustom creates custom markdown output.
func GenMarkdownCustom(cmd *cobra.Command, w io.Writer, linkHandler func(string) string) error {
buf := new(bytes.Buffer)
name := cmd.CommandPath()
short := cmd.Short
@ -67,49 +61,31 @@ func GenMarkdownCustom(cmd *cobra.Command, w io.Writer, linkHandler func(string)
long = short
}
if _, err := fmt.Fprintf(w, "## %s\n\n", name); err != nil {
return err
}
if _, err := fmt.Fprintf(w, "%s\n\n", short); err != nil {
return err
}
if _, err := fmt.Fprintf(w, "### Synopsis\n\n"); err != nil {
return err
}
if _, err := fmt.Fprintf(w, "\n%s\n\n", long); err != nil {
return err
}
buf.WriteString("## " + name + "\n\n")
buf.WriteString(short + "\n\n")
buf.WriteString("### Synopsis\n\n")
buf.WriteString("\n" + long + "\n\n")
if cmd.Runnable() {
if _, err := fmt.Fprintf(w, "```\n%s\n```\n\n", cmd.UseLine()); err != nil {
return err
}
buf.WriteString(fmt.Sprintf("```\n%s\n```\n\n", cmd.UseLine()))
}
if len(cmd.Example) > 0 {
if _, err := fmt.Fprintf(w, "### Examples\n\n"); err != nil {
return err
}
if _, err := fmt.Fprintf(w, "```\n%s\n```\n\n", cmd.Example); err != nil {
return err
}
buf.WriteString("### Examples\n\n")
buf.WriteString(fmt.Sprintf("```\n%s\n```\n\n", cmd.Example))
}
if err := printOptions(w, cmd, name); err != nil {
if err := printOptions(buf, cmd, name); err != nil {
return err
}
if hasSeeAlso(cmd) {
if _, err := fmt.Fprintf(w, "### SEE ALSO\n"); err != nil {
return err
}
buf.WriteString("### SEE ALSO\n")
if cmd.HasParent() {
parent := cmd.Parent()
pname := parent.CommandPath()
link := pname + ".md"
link = strings.Replace(link, " ", "_", -1)
if _, err := fmt.Fprintf(w, "* [%s](%s)\t - %s\n", pname, linkHandler(link), parent.Short); err != nil {
return err
}
buf.WriteString(fmt.Sprintf("* [%s](%s)\t - %s\n", pname, linkHandler(link), parent.Short))
cmd.VisitParents(func(c *cobra.Command) {
if c.DisableAutoGenTag {
cmd.DisableAutoGenTag = c.DisableAutoGenTag
@ -127,20 +103,15 @@ func GenMarkdownCustom(cmd *cobra.Command, w io.Writer, linkHandler func(string)
cname := name + " " + child.Name()
link := cname + ".md"
link = strings.Replace(link, " ", "_", -1)
if _, err := fmt.Fprintf(w, "* [%s](%s)\t - %s\n", cname, linkHandler(link), child.Short); err != nil {
return err
}
}
if _, err := fmt.Fprintf(w, "\n"); err != nil {
return err
buf.WriteString(fmt.Sprintf("* [%s](%s)\t - %s\n", cname, linkHandler(link), child.Short))
}
buf.WriteString("\n")
}
if !cmd.DisableAutoGenTag {
if _, err := fmt.Fprintf(w, "###### Auto generated by spf13/cobra on %s\n", time.Now().Format("2-Jan-2006")); err != nil {
return err
}
buf.WriteString("###### Auto generated by spf13/cobra on " + time.Now().Format("2-Jan-2006") + "\n")
}
return nil
_, err := buf.WriteTo(w)
return err
}
// GenMarkdownTree will generate a markdown page for this command and all

17
doc/md_docs_test.go
View file

@ -105,3 +105,20 @@ func TestGenMdTree(t *testing.T) {
t.Fatalf("Expected file 'do.md' to exist")
}
}
func BenchmarkGenMarkdownToFile(b *testing.B) {
c := initializeWithRootCmd()
file, err := ioutil.TempFile("", "")
if err != nil {
b.Fatal(err)
}
defer os.Remove(file.Name())
defer file.Close()
b.ResetTimer()
for i := 0; i < b.N; i++ {
if err := GenMarkdown(c, file); err != nil {
b.Fatal(err)
}
}
}