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 # Copyright 2013 Harald Hoyer
   8 #
   9 # systemd is free software; you can redistribute it and/or modify it
  10 # under the terms of the GNU Lesser General Public License as published by
  11 # the Free Software Foundation; either version 2.1 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # systemd is distributed in the hope that it will be useful, but
  15 # WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17 # General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU Lesser General Public License
  20 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21
  22 __contains_word () {
  23         local w word=$1; shift
  24         for w in "$@"; do
  25                 [[ $w = "$word" ]] && return
  26         done
  27 }
  28
  29 __get_machines() {
  30         local a b
  31         machinectl list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
  32 }
  33
  34 _systemd_analyze() {
  35         local i verb comps
  36         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  37
  38         local -A OPTS=(
  39                [STANDALONE]='-h --help --version --system --user --global --order --require --no-pager
  40                              --man=no --generators=yes'
  41                       [ARG]='-H --host -M --machine --fuzz --from-pattern --to-pattern'
  42         )
  43
  44         local -A VERBS=(
  45                 [STANDALONE]='time blame plot dump unit-paths calendar'
  46                 [CRITICAL_CHAIN]='critical-chain'
  47                 [DOT]='dot'
  48                 [LOG_LEVEL]='log-level'
  49                 [LOG_TARGET]='log-target'
  50                 [VERIFY]='verify'
  51                 [SECCOMP_FILTER]='syscall-filter'
  52                 [SERVICE_WATCHDOGS]='service-watchdogs'
  53         )
  54
  55         _init_completion || return
  56
  57         for ((i=0; i < COMP_CWORD; i++)); do
  58                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  59                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  60                         verb=${COMP_WORDS[i]}
  61                         break
  62                 fi
  63         done
  64
  65         if __contains_word "$prev" ${OPTS[ARG]}; then
  66                 case $prev in
  67                         --host|-H)
  68                                 comps=$(compgen -A hostname)
  69                         ;;
  70                         --machine|-M)
  71                                 comps=$( __get_machines )
  72                         ;;
  73                 esac
  74                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  75                 return 0
  76         fi
  77
  78         if [[ -z $verb  && $cur = -* ]]; then
  79                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  80                 return 0
  81         fi
  82
  83         if [[ -z $verb ]]; then
  84                 comps=${VERBS[*]}
  85
  86         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  87                 if [[ $cur = -* ]]; then
  88                         comps='--help --version --system --user --global'
  89                 fi
  90
  91         elif __contains_word "$verb" ${VERBS[CRITICAL_CHAIN]}; then
  92                 if [[ $cur = -* ]]; then
  93                         comps='--help --version --system --user --fuzz'
  94                 fi
  95
  96         elif __contains_word "$verb" ${VERBS[DOT]}; then
  97                 if [[ $cur = -* ]]; then
  98                         comps='--help --version --system --user --global --from-pattern --to-pattern --order --require'
  99                 fi
 100
 101         elif __contains_word "$verb" ${VERBS[LOG_LEVEL]}; then
 102                 if [[ $cur = -* ]]; then
 103                         comps='--help --version --system --user'
 104                 else
 105                         comps='debug info notice warning err crit alert emerg'
 106                 fi
 107
 108         elif __contains_word "$verb" ${VERBS[LOG_TARGET]}; then
 109                 if [[ $cur = -* ]]; then
 110                         comps='--help --version --system --user'
 111                 else
 112                         comps='console journal kmsg journal-or-kmsg null'
 113                 fi
 114
 115         elif __contains_word "$verb" ${VERBS[SECCOMP_FILTER]}; then
 116                 if [[ $cur = -* ]]; then
 117                         comps='--help --version'
 118                 fi
 119
 120         elif __contains_word "$verb" ${VERBS[VERIFY]}; then
 121                 if [[ $cur = -* ]]; then
 122                         comps='--help --version --system --user --global --man=no --generators=yes'
 123                 else
 124                         comps=$( compgen -A file -- "$cur" )
 125                         compopt -o filenames
 126                 fi
 127
 128         elif __contains_word "$verb" ${VERBS[SERVICE_WATCHDOGS]}; then
 129                 if [[ $cur = -* ]]; then
 130                         comps='--help --version --system --user'
 131                 else
 132                         comps='on off'
 133                 fi
 134
 135         fi
 136
 137         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 138         return 0
 139 }
 140
 141 complete -F _systemd_analyze systemd-analyze