shell-completion/bash/systemd-analyze

   1 # systemd-analyze(1) completion                      -*- shell-script -*-
   2 # SPDX-License-Identifier: LGPL-2.1+
   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 --no-legend --no-pager | { while read a b; do echo " $a"; done; };
  31 }
  32
  33 __get_services() {
  34         systemctl list-units --no-legend --no-pager -t service --all $1 | \
  35                 { while read -r a b c; do [[ $b == "loaded" ]]; echo " $a"; done }
  36 }
  37
  38 _systemd_analyze() {
  39         local i verb comps mode
  40         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  41
  42         local -A OPTS=(
  43                [STANDALONE]='-h --help --version --system --user --global --order --require --no-pager
  44                              --man=no --generators=yes'
  45                       [ARG]='-H --host -M --machine --fuzz --from-pattern --to-pattern --root'
  46         )
  47
  48         local -A VERBS=(
  49                 [STANDALONE]='time blame plot dump unit-paths calendar timespan'
  50                 [CRITICAL_CHAIN]='critical-chain'
  51                 [DOT]='dot'
  52                 [LOG_LEVEL]='log-level'
  53                 [LOG_TARGET]='log-target'
  54                 [VERIFY]='verify'
  55                 [SECCOMP_FILTER]='syscall-filter'
  56                 [SERVICE_WATCHDOGS]='service-watchdogs'
  57                 [CAT_CONFIG]='cat-config'
  58                 [SECURITY]='security'
  59         )
  60
  61         local CONFIGS='systemd/bootchart.conf systemd/coredump.conf systemd/journald.conf
  62                        systemd/journal-remote.conf systemd/journal-upload.conf systemd/logind.conf
  63                        systemd/resolved.conf systemd/networkd.conf systemd/resolved.conf
  64                        systemd/sleep.conf systemd/system.conf systemd/timedated.conf
  65                        systemd/timesyncd.conf systemd/user.conf udev/udev.conf'
  66
  67         _init_completion || return
  68
  69         for ((i=0; i < COMP_CWORD; i++)); do
  70                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  71                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  72                         verb=${COMP_WORDS[i]}
  73                         break
  74                 fi
  75         done
  76
  77         if __contains_word "$prev" ${OPTS[ARG]}; then
  78                 case $prev in
  79                         --host|-H)
  80                                 comps=$(compgen -A hostname)
  81                         ;;
  82                         --machine|-M)
  83                                 comps=$( __get_machines )
  84                         ;;
  85                 esac
  86                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  87                 return 0
  88         fi
  89
  90         if [[ -z $verb  && $cur = -* ]]; then
  91                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  92                 return 0
  93         fi
  94
  95         if [[ -z $verb ]]; then
  96                 comps=${VERBS[*]}
  97
  98         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  99                 if [[ $cur = -* ]]; then
 100                         comps='--help --version --system --user --global --no-pager'
 101                 fi
 102
 103         elif __contains_word "$verb" ${VERBS[CRITICAL_CHAIN]}; then
 104                 if [[ $cur = -* ]]; then
 105                         comps='--help --version --system --user --fuzz --no-pager'
 106                 fi
 107
 108         elif __contains_word "$verb" ${VERBS[DOT]}; then
 109                 if [[ $cur = -* ]]; then
 110                         comps='--help --version --system --user --global --from-pattern --to-pattern --order --require'
 111                 fi
 112
 113         elif __contains_word "$verb" ${VERBS[LOG_LEVEL]}; then
 114                 if [[ $cur = -* ]]; then
 115                         comps='--help --version --system --user'
 116                 else
 117                         comps='debug info notice warning err crit alert emerg'
 118                 fi
 119
 120         elif __contains_word "$verb" ${VERBS[LOG_TARGET]}; then
 121                 if [[ $cur = -* ]]; then
 122                         comps='--help --version --system --user'
 123                 else
 124                         comps='console journal kmsg journal-or-kmsg null'
 125                 fi
 126
 127         elif __contains_word "$verb" ${VERBS[SECCOMP_FILTER]}; then
 128                 if [[ $cur = -* ]]; then
 129                         comps='--help --version --no-pager'
 130                 fi
 131
 132         elif __contains_word "$verb" ${VERBS[VERIFY]}; then
 133                 if [[ $cur = -* ]]; then
 134                         comps='--help --version --system --user --global --man=no --generators=yes'
 135                 else
 136                         comps=$( compgen -A file -- "$cur" )
 137                         compopt -o filenames
 138                 fi
 139
 140         elif __contains_word "$verb" ${VERBS[SERVICE_WATCHDOGS]}; then
 141                 if [[ $cur = -* ]]; then
 142                         comps='--help --version --system --user'
 143                 else
 144                         comps='on off'
 145                 fi
 146
 147         elif __contains_word "$verb" ${VERBS[CAT_CONFIG]}; then
 148                 if [[ $cur = -* ]]; then
 149                         comps='--help --version --root --no-pager'
 150                 elif [[ -z $cur ]]; then
 151                         comps="$CONFIGS"
 152                         compopt -o filenames
 153                 else
 154                         comps="$CONFIGS $( compgen -A file -- "$cur" )"
 155                         compopt -o filenames
 156                 fi
 157
 158         elif __contains_word "$verb" ${VERBS[SECURITY]}; then
 159                 if [[ $cur = -* ]]; then
 160                         comps='--help --version --no-pager --system --user -H --host -M --machine'
 161                 else
 162                         if __contains_word "--user" ${COMP_WORDS[*]}; then
 163                                 mode=--user
 164                         else
 165                                 mode=--system
 166                         fi
 167                         comps=$( __get_services $mode )
 168                 fi
 169         fi
 170
 171         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 172         return 0
 173 }
 174
 175 complete -F _systemd_analyze systemd-analyze