feature: Add goctl completion (#1505)

* feature: Add `goctl completion`

* Update const

Co-authored-by: anqiansong <anqiansong@bytedance.com>

tools/goctl/completion/script.go

@@ -0,0 +1,51 @@
+package completion
+
+import "fmt"
+
+var zsh = []byte(fmt.Sprintf(`#compdef $PROG
+
+_cli_zsh_autocomplete() {
+
+  local -a opts
+  local cur
+  cur=${words[-1]}
+  if [[ "$cur" == "-"* ]]; then
+    opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} ${cur} --%s)}")
+  else
+    opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} --%s)}")
+  fi
+
+  if [[ "${opts[1]}" != "" ]]; then
+    _describe 'values' opts
+  else
+    _files
+  fi
+
+  return
+}
+
+compdef _cli_zsh_autocomplete $PROG
+`, BashCompletionFlag, BashCompletionFlag))
+
+var bash = []byte(fmt.Sprintf(`#! /bin/bash
+
+: ${PROG:=$(basename ${BASH_SOURCE})}
+
+_cli_bash_autocomplete() {
+  if [[ "${COMP_WORDS[0]}" != "source" ]]; then
+    local cur opts base
+    COMPREPLY=()
+    cur="${COMP_WORDS[COMP_CWORD]}"
+    if [[ "$cur" == "-"* ]]; then
+      opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} ${cur} --%s )
+    else
+      opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} --%s )
+    fi
+    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+    return 0
+  fi
+}
+
+complete -o bashdefault -o default -o nospace -F _cli_bash_autocomplete $PROG
+unset PROG
+`, BashCompletionFlag, BashCompletionFlag))