add pdctl interactive mode autocomplete

[jiashiwen]

What problem does this PR solve?

#2299

What is changed and how it works?

interactive mode ,use "tab" to auto complete command and flags

Check List

Tests

• Manual test (add detailed scripts or steps below)

run pd-ctl as interactive mode
press 'tab' show command will be used

Code changes

add new varable

readlinecompleter *readline.PrefixCompleter

add new func

func GenCompleter(cmd *cobra.Command) []readline.PrefixCompleterInterface {
	pc := []readline.PrefixCompleterInterface{}
	if len(cmd.Commands()) != 0 {
		for _, v := range cmd.Commands() {
			// fmt.Println(strings.Split(v.Use, " ")[0]
			if v.HasFlags() {
				flagspc := []readline.PrefixCompleterInterface{}

				flaguseages := strings.Split(strings.Trim(v.Flags().FlagUsages(), " "), "\n")

				for i := 0; i < len(flaguseages)-1; i++ {
					flagspc = append(flagspc, readline.PcItem(strings.Split(strings.Trim(flaguseages[i], " "), " ")[0]))
				}
				flagspc = append(flagspc, GenCompleter(v)...)
				pc = append(pc, readline.PcItem(strings.Split(v.Use, " ")[0], flagspc...))

			} else {
				pc = append(pc, readline.PcItem(strings.Split(v.Use, " ")[0], GenCompleter(v)...))
			}
		}
	}
	return pc
}

func getMainCmd add new expression

readlinecompleter = readline.NewPrefixCompleter(GenCompleter(rootCmd)...)

func loop() add

AutoComplete: readlinecompleter,

Release note

[JmPotato]

/rebuild

[Yisaer]

The rest LGTM

[rleungx]

The PR description is not very clear, would you like to format it?

[jiashiwen]

description

how to do?

[Yisaer]

The rest LGTM

[jiashiwen]

idc-jenkins-ci/test error,but the unit test not my code

[JmPotato]

/rebuild

[Yisaer]

LGTM

[ti-srebot]

@Yisaer,Thanks for your review. However, LGTM is restricted to Reviewers or higher roles.See the corresponding SIG page for more information. Related SIGs: scheduling(slack).

[rleungx]

The rest LGTM

[howardlau1999]

LGTM

[ti-srebot]

@howardlau1999,Thanks for your review. However, LGTM is restricted to Reviewers or higher roles.See the corresponding SIG page for more information. Related SIGs: scheduling(slack).

[nolouch]

LGTM.

[nolouch]

/merge

[ti-srebot]

@nolouch Oops! This PR requires at least 2 LGTMs to merge. The current number of LGTM is 0.