bash-completion/completions/getent

# bash completion for getent

have getent || return

_getent()
{
    local cur prev words cword
    _init_completion -n = || return

    local split=false
    _split_longopt && split=true

    local i db
    for (( i=1; i < cword; i++ )); do
        case ${words[i]} in
            -V|--version|--usage|-'?'|--help)
                return
                ;;
            -s|--service)
                (( i++ ))
                ;;
            -*)
                ;;
            *)
                # First non-option value is the db
                db=${words[i]}
                break
                ;;
        esac
    done

    case $db in
        passwd)
            COMPREPLY=( $( compgen -u "$cur"  ) )
            return 0
            ;;
        group)
            COMPREPLY=( $( compgen -g "$cur"  ) )
            return 0
            ;;
        services)
            COMPREPLY=( $( compgen -s "$cur"  ) )
            return 0
            ;;
        hosts)
            COMPREPLY=( $( compgen -A hostname "$cur"  ) )
            return 0
            ;;
        protocols|networks|ahosts|ahostsv4|ahostsv6|rpc)
            COMPREPLY=( $( compgen -W "$( getent $db | \
                awk '{ print $1 }' )" -- "$cur" ) )
            return 0
            ;;
        aliases|shadow|gshadow)
            COMPREPLY=( $( compgen -W "$( getent $db | cut -d: -f1 )" \
                -- "$cur" ) )
            return 0
            ;;
        ethers|netgroup)
            return
            ;;
    esac

    case $prev in
        -s|--service)
            return
            ;;
    esac

    $split && return

    if [[ $cur == -* ]]; then
        COMPREPLY=( $( compgen -W '$( _parse_help "$1" )' -- "$cur" ) )
    elif [[ -z $db ]]; then
        COMPREPLY=( $( compgen -W 'passwd group hosts services protocols \
            networks ahosts ahostsv4 ahostsv6 aliases ethers netgroup rpc \
            shadow gshadow' -- "$cur" ) )
    fi
} &&
complete -F _getent getent

# Local variables:
# mode: shell-script
# sh-basic-offset: 4
# sh-indent-comment: t
# indent-tabs-mode: nil
# End:
# ex: ts=4 sw=4 et filetype=sh