1# hostnamectl(1) completion                               -*- shell-script -*-
2# SPDX-License-Identifier: LGPL-2.1-or-later
3#
4# This file is part of systemd.
5#
6# Copyright © 2010 Ran Benita
7#
8# systemd is free software; you can redistribute it and/or modify it
9# under the terms of the GNU Lesser General Public License as published by
10# the Free Software Foundation; either version 2.1 of the License, or
11# (at your option) any later version.
12#
13# systemd is distributed in the hope that it will be useful, but
14# WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16# General Public License for more details.
17#
18# You should have received a copy of the GNU Lesser General Public License
19# along with systemd; If not, see <http://www.gnu.org/licenses/>.
20
21__contains_word () {
22    local w word=$1; shift
23    for w in "$@"; do
24        [[ $w = "$word" ]] && return
25    done
26}
27
28__get_machines() {
29    local a b
30    machinectl list --full --no-legend --no-pager 2>/dev/null |
31        { while read a b; do echo " $a"; done; };
32}
33
34_hostnamectl() {
35    local i verb comps
36    local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
37    local -A OPTS=(
38        [STANDALONE]='-h --help --version --transient --static --pretty --no-ask-password'
39        [ARG]='-H --host -M --machine --json'
40    )
41
42    if __contains_word "$prev" ${OPTS[ARG]}; then
43        case $prev in
44            --host|-H)
45                comps=$(compgen -A hostname)
46                ;;
47            --machine|-M)
48                comps=$( __get_machines )
49                ;;
50            --json)
51                comps=$( hostnamectl --json=help 2>/dev/null )
52                ;;
53            *)
54                return 0
55                ;;
56        esac
57        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
58        return 0
59    fi
60
61    if [[ $cur = -* ]]; then
62        COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
63        return 0
64    fi
65
66    local -A VERBS=(
67        [STANDALONE]='status'
68        [ICONS]='icon-name'
69        [NAME]='hostname deployment location'
70        [CHASSIS]='chassis'
71    )
72
73    for ((i=0; i < COMP_CWORD; i++)); do
74        if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]}; then
75            verb=${COMP_WORDS[i]}
76            break
77        fi
78    done
79
80    if [[ -z ${verb-} ]]; then
81        comps=${VERBS[*]}
82    elif __contains_word "$verb" ${VERBS[CHASSIS]}; then
83        comps='desktop laptop convertible server tablet handset watch embedded vm container'
84    elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[ICONS]} ${VERBS[NAME]}; then
85        comps=''
86    fi
87
88    COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
89    return 0
90}
91
92complete -F _hostnamectl hostnamectl
93