ldap.auto

#!/usr/bin/env bash

# -------------------------------------------------------------------------------
#
#    Copyright (c) 2016 Slava Vladyshevsky. All rights reserved.
#    Licensed under the MIT License. See LICENSE file in the project root.
#
#    Author:  Slava Vladyshevsky <slava.vladyshevsky(a)gmail.com>
#    Project: DevOps Automation
#
#    Bash auto-completion for the ldap tool
#
# -------------------------------------------------------------------------------

# see https://www.gnu.org/software/bash/manual/html_node/Programmable-Completion-Builtins.html
# $1: is the name of the command whose arguments are being completed
# $2: is the word being completed, equal to ${COMP_WORDS[COMP_CWORD]}
# $3: is the word preceding the word being completed, equal to ${COMP_WORDS[COMP_CWORD-1]}
_comp_ldap() {
  # the basic CLI objects
  local objects="group org user"
  local args=""
  COMPREPLY=()

  if [[ "${1} ${objects}" =~ ${3} ]] ; then
    case "${3}" in
      group)    args="list dir add create del remove users members adduser useradd deluser userdel" ;;
      org)      args="list dir add create del remove" ;;
      user)     args="list dir groups memberof add create del remove getattr setattr" ;;
      ${1})     args=${objects} ;;
      *) return 0 ;;
    esac
  else
    case "${COMP_WORDS[1]}-${COMP_WORDS[2]}" in
      group-list|group-dir)        args="--org --format" ;;
      group-add|group-create)      args="--org --group" ;;
      group-del|group-remove)      args="--org --group" ;;
      group-users|group-members)   args="--group --format" ;;
      group-adduser|group-useradd) args="--group --org --name" ;;
      group-deluser|group-userdel) args="--group --org --name" ;;
      org-list|org-dir)            args="--pattern --format" ;;
      org-add|org-create)          args="--org" ;;
      org-del|org-remove)          args="--org" ;;
      user-groups|user-memberof)   args="--org --name --format" ;;
      user-list|user-dir)          args="--org --container --format" ;;
      user-add|user-create)        args="--org --container --first --last --login --mail --password" ;;
      user-del|user-remove)        args="--org --name" ;;
      user-getattr)                args="--org --name --attr" ;;
      user-setattr)                args="--org --name --attr --value" ;;
      *) return 0 ;;
    esac
  fi

  # complete the choice for some of the common arguments
  if [[ ${3} == --* ]] ; then
    local IFS=$'\n\t'
    case "${3}" in
      --container) args=$'Users\tGroups\tService Accounts' ;;
      --org)       args=$(${1} org list 2>/dev/null) ;;
      --group)     args=$(${1} group list 2>/dev/null) ;;
      --format)    args=$'short\tlong' ;;
      *) return 0 ;;
    esac
    COMPREPLY=($(compgen -W "${args[*]}" -- ${2}))
    # escaping spaces and other unsafe characters
    COMPREPLY=($(printf "%q\n" "${COMPREPLY[@]}"))
    return 0
  fi

  COMPREPLY=($(compgen -W "${args[*]}" -- ${2}))
  return 0
}

complete -F _comp_ldap ldap