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1 | # resolvectl(1) completion -*- shell-script -*- |
2 | # SPDX-License-Identifier: LGPL-2.1+ | |
3 | # | |
4 | # This file is part of systemd. | |
5 | # | |
6 | # Copyright 2018 Yu Watanabe | |
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_interfaces(){ | |
29 | { cd /sys/class/net && echo *; } | \ | |
30 | while read -d' ' -r name; do | |
31 | [[ "$name" != "lo" ]] && echo "$name" | |
32 | done | |
33 | } | |
34 | ||
35 | _resolvectl() { | |
36 | local i comps verb name | |
37 | local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]} | |
38 | local -A OPTS=( | |
39 | [STANDALONE]='-h --help --version --no-pager -4 -6 | |
40 | --service-address=no --service-txt=no | |
41 | --cname=no --search=no --legend=no' | |
42 | [ARG]='-i --interface -p --protocol -t --type -c --class --raw' | |
43 | ) | |
44 | local -A VERBS=( | |
45 | [DOMAIN]='query service openpgp' | |
46 | [FAMILY]='tlsa' | |
47 | [STATUS]='status' | |
48 | [LINK]='revert dns domain nta' | |
49 | [RESOLVE]='llmnr mdns' | |
50 | [DNSSEC]='dnssec' | |
c9299be2 | 51 | [DNSOVERTLS]='dnsovertls' |
bd188ff0 YW |
52 | [STANDALONE]='statistics reset-statistics flush-caches reset-server-features' |
53 | ) | |
54 | local -A ARGS=( | |
55 | [FAMILY]='tcp udp sctp' | |
56 | [RESOLVE]='yes no resolve' | |
57 | [DNSSEC]='yes no allow-downgrade' | |
c9299be2 | 58 | [DNSOVERTLS]='no opportunistic' |
bd188ff0 YW |
59 | ) |
60 | local interfaces=$( __get_interfaces ) | |
61 | ||
62 | if __contains_word "$prev" ${OPTS[ARG]}; then | |
63 | case $prev in | |
64 | --interface|-i) | |
65 | comps="$interfaces" | |
66 | ;; | |
67 | --protocol|-p|--type|-t|--class|-c) | |
68 | comps=$( resolvectl --legend=no "$prev" help; echo help ) | |
69 | ;; | |
70 | --raw) | |
71 | comps="payload packet" | |
72 | ;; | |
73 | esac | |
74 | COMPREPLY=( $(compgen -W '$comps' -- "$cur") ) | |
75 | return 0 | |
76 | fi | |
77 | ||
78 | if [[ "$cur" = -* ]]; then | |
79 | COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") ) | |
80 | return 0 | |
81 | fi | |
82 | ||
83 | for ((i=0; i < COMP_CWORD; i++)); do | |
84 | if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} && | |
85 | ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then | |
86 | verb=${COMP_WORDS[i]} | |
87 | break | |
88 | fi | |
89 | done | |
90 | ||
91 | if [[ -z $verb ]]; then | |
92 | comps="${VERBS[*]}" | |
93 | ||
94 | elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[DOMAIN]}; then | |
95 | comps='' | |
96 | ||
97 | elif __contains_word "$verb" ${VERBS[STATUS]}; then | |
98 | comps="$interfaces" | |
99 | ||
100 | elif __contains_word "$verb" ${VERBS[FAMILY]}; then | |
101 | for ((i++; i < COMP_CWORD; i++)); do | |
102 | if __contains_word "${COMP_WORDS[i]}" ${ARGS[FAMILY]} && | |
103 | ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then | |
104 | name=${COMP_WORDS[i]} | |
105 | break; | |
106 | fi | |
107 | done | |
108 | if [[ -z $name ]]; then | |
109 | comps=${ARGS[FAMILY]} | |
110 | else | |
111 | comps="" | |
112 | fi | |
113 | ||
c9299be2 | 114 | elif __contains_word "$verb" ${VERBS[LINK]} ${VERBS[RESOLVE]} ${VERBS[DNSSEC]} ${VERBS[DNSOVERTLS]}; then |
bd188ff0 YW |
115 | for ((i++; i < COMP_CWORD; i++)); do |
116 | if __contains_word "${COMP_WORDS[i]}" $interfaces && | |
117 | ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then | |
118 | name=${COMP_WORDS[i]} | |
119 | break; | |
120 | fi | |
121 | done | |
122 | ||
123 | if [[ -z $name ]]; then | |
124 | comps="$interfaces" | |
125 | ||
126 | elif __contains_word "$verb" ${VERBS[RESOLVE]}; then | |
127 | name= | |
128 | for ((i++; i < COMP_CWORD; i++)); do | |
129 | if __contains_word "${COMP_WORDS[i]}" ${ARGS[RESOLVE]} && | |
130 | ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then | |
131 | name=${COMP_WORDS[i]} | |
132 | break; | |
133 | fi | |
134 | done | |
135 | ||
136 | if [[ -z $name ]]; then | |
137 | comps=${ARGS[RESOLVE]} | |
138 | else | |
139 | comps='' | |
140 | fi | |
141 | ||
142 | elif __contains_word "$verb" ${VERBS[DNSSEC]}; then | |
143 | name= | |
144 | for ((i++; i < COMP_CWORD; i++)); do | |
145 | if __contains_word "${COMP_WORDS[i]}" ${ARGS[DNSSEC]} && | |
146 | ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then | |
147 | name=${COMP_WORDS[i]} | |
148 | break; | |
149 | fi | |
150 | done | |
151 | ||
152 | if [[ -z $name ]]; then | |
153 | comps=${ARGS[DNSSEC]} | |
154 | else | |
155 | comps='' | |
156 | fi | |
157 | ||
c9299be2 | 158 | elif __contains_word "$verb" ${VERBS[DNSOVERTLS]}; then |
1a363eda YW |
159 | name= |
160 | for ((i++; i < COMP_CWORD; i++)); do | |
c9299be2 | 161 | if __contains_word "${COMP_WORDS[i]}" ${ARGS[DNSOVERTLS]} && |
1a363eda YW |
162 | ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then |
163 | name=${COMP_WORDS[i]} | |
164 | break; | |
165 | fi | |
166 | done | |
167 | ||
168 | if [[ -z $name ]]; then | |
c9299be2 | 169 | comps=${ARGS[DNSOVERTLS]} |
1a363eda YW |
170 | else |
171 | comps='' | |
172 | fi | |
173 | ||
bd188ff0 YW |
174 | else |
175 | comps='' | |
176 | fi | |
177 | fi | |
178 | ||
179 | COMPREPLY=( $(compgen -W '$comps' -- "$cur") ) | |
180 | return 0 | |
181 | } | |
182 | ||
183 | complete -F _resolvectl resolvectl |