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strv: don't access potentially NULL string arrays
[elogind.git] / shell-completion / bash / timedatectl
1 # timedatectl(1) completion                               -*- shell-script -*-
2 #
3 # This file is part of systemd.
4 #
5 # Copyright 2010 Ran Benita
6 #
7 # systemd is free software; you can redistribute it and/or modify it
8 # under the terms of the GNU Lesser General Public License as published by
9 # the Free Software Foundation; either version 2.1 of the License, or
10 # (at your option) any later version.
11 #
12 # systemd is distributed in the hope that it will be useful, but
13 # WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 # General Public License for more details.
16 #
17 # You should have received a copy of the GNU Lesser General Public License
18 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
19
20 __contains_word () {
21         local w word=$1; shift
22         for w in "$@"; do
23                 [[ $w = "$word" ]] && return
24         done
25 }
26
27 _timedatectl() {
28         local i verb comps
29         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
30         local OPTS='-h --help --version --adjust-system-clock --no-pager
31                     --no-ask-password -H --host'
32
33         if __contains_word "$prev" $OPTS; then
34                 case $prev in
35                         --host|-H)
36                                 comps=''
37                         ;;
38                 esac
39                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
40                 return 0
41         fi
42
43         if [[ $cur = -* ]]; then
44                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
45                 return 0
46         fi
47
48         local -A VERBS=(
49                   [BOOLEAN]='set-local-rtc set-ntp'
50                [STANDALONE]='status set-time list-timezones'
51                 [TIMEZONES]='set-timezone'
52                      [TIME]='set-time'
53         )
54
55         for ((i=0; i <= COMP_CWORD; i++)); do
56                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]}; then
57                         verb=${COMP_WORDS[i]}
58                         break
59                 fi
60         done
61
62         if [[ -z $verb ]]; then
63                 comps=${VERBS[*]}
64         elif __contains_word "$verb" ${VERBS[BOOLEAN]}; then
65                 comps='true false'
66         elif __contains_word "$verb" ${VERBS[TIMEZONES]}; then
67                 comps=$(command timedatectl list-timezones)
68         elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[TIME]}; then
69                 comps=''
70         fi
71
72         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
73         return 0
74 }
75
76 complete -F _timedatectl timedatectl