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=${COMP_WORDS[COMP_CWORD-1]}
  37
  38         local -A OPTS=(
  39                [STANDALONE]='--help --version --system --user --order --require --no-pager --man'
  40                       [ARG]='-H --host -M --machine --fuzz --from-pattern --to-pattern '
  41         )
  42
  43         local -A VERBS=(
  44                 [STANDALONE]='time blame plot dump get-log-level get-log-target'
  45                 [CRITICAL_CHAIN]='critical-chain'
  46                 [DOT]='dot'
  47                 [LOG_LEVEL]='set-log-level'
  48                 [LOG_TARGET]='set-log-target'
  49                 [VERIFY]='verify'
  50                 [SECCOMP_FILTER]='syscall-filter'
  51         )
  52
  53         _init_completion || return
  54
  55         for ((i=0; i < COMP_CWORD; i++)); do
  56                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  57                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  58                         verb=${COMP_WORDS[i]}
  59                         break
  60                 fi
  61         done
  62
  63         if __contains_word "$prev" ${OPTS[ARG]}; then
  64                 case $prev in
  65                         --host|-H)
  66                                 comps=$(compgen -A hostname)
  67                         ;;
  68                         --machine|-M)
  69                                 comps=$( __get_machines )
  70                         ;;
  71                 esac
  72                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  73                 return 0
  74         fi
  75
  76         if [[ -z $verb  && $cur = -* ]]; then
  77                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  78                 return 0
  79         fi
  80
  81         if [[ -z $verb ]]; then
  82                 comps=${VERBS[*]}
  83
  84         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  85                 if [[ $cur = -* ]]; then
  86                         comps='--help --version --system --user'
  87                 fi
  88
  89         elif __contains_word "$verb" ${VERBS[CRITICAL_CHAIN]}; then
  90                 if [[ $cur = -* ]]; then
  91                         comps='--help --version --system --user --fuzz'
  92                 fi
  93
  94         elif __contains_word "$verb" ${VERBS[DOT]}; then
  95                 if [[ $cur = -* ]]; then
  96                         comps='--help --version --system --user --from-pattern --to-pattern --order --require'
  97                 fi
  98
  99         elif __contains_word "$verb" ${VERBS[LOG_LEVEL]}; then
 100                 if [[ $cur = -* ]]; then
 101                         comps='--help --version --system --user'
 102                 else
 103                         comps='debug info notice warning err crit alert emerg'
 104                 fi
 105
 106         elif __contains_word "$verb" ${VERBS[LOG_TARGET]}; then
 107                 if [[ $cur = -* ]]; then
 108                         comps='--help --version --system --user'
 109                 else
 110                         comps='console journal kmsg journal-or-kmsg null'
 111                 fi
 112
 113         elif __contains_word "$verb" ${VERBS[SECCOMP_FILTER]}; then
 114                 if [[ $cur = -* ]]; then
 115                         comps='--help --version'
 116                 fi
 117
 118         elif __contains_word "$verb" ${VERBS[VERIFY]}; then
 119                 if [[ $cur = -* ]]; then
 120                         comps='--help --version --system --user --man'
 121                 else
 122                         comps=$( compgen -A file -- "$cur" )
 123                         compopt -o filenames
 124                 fi
 125
 126         fi
 127
 128         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 129         return 0
 130 }
 131
 132 complete -F _systemd_analyze systemd-analyze