shell-completion/bash/systemd-analyze

   1 # systemd-analyze(1) completion                      -*- shell-script -*-
   2 #
   3 # This file is part of systemd.
   4 #
   5 # Copyright 2010 Ran Benita
   6 # Copyright 2013 Harald Hoyer
   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 " $a"; done; };
  31 }
  32
  33 _systemd_analyze() {
  34         local i verb comps
  35         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  36
  37         local -A OPTS=(
  38                [STANDALONE]='--help --version --system --user --from-pattern --to-pattern --order --require --no-pager'
  39                       [ARG]='-H --host -M --machine'
  40         )
  41
  42         local -A VERBS=(
  43                 [STANDALONE]='time blame plot dump'
  44                 [CRITICAL_CHAIN]='critical-chain'
  45                 [DOT]='dot'
  46                 [LOG_LEVEL]='set-log-level'
  47                 [VERIFY]='verify'
  48         )
  49
  50         _init_completion || return
  51
  52         for ((i=0; i < COMP_CWORD; i++)); do
  53                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  54                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  55                         verb=${COMP_WORDS[i]}
  56                         break
  57                 fi
  58         done
  59
  60         if __contains_word "$prev" ${OPTS[ARG]}; then
  61                 case $prev in
  62                         --host|-H)
  63                                 comps=$(compgen -A hostname)
  64                         ;;
  65                         --machine|-M)
  66                                 comps=$( __get_machines )
  67                         ;;
  68                 esac
  69                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  70                 return 0
  71         fi
  72
  73         if [[ -z $verb  && $cur = -* ]]; then
  74                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  75                 return 0
  76         fi
  77
  78         if [[ -z $verb ]]; then
  79                 comps=${VERBS[*]}
  80
  81         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  82                 if [[ $cur = -* ]]; then
  83                         comps='--help --version --system --user'
  84                 fi
  85
  86         elif __contains_word "$verb" ${VERBS[CRITICAL_CHAIN]}; then
  87                 if [[ $cur = -* ]]; then
  88                         comps='--help --version --system --user --fuzz'
  89                 fi
  90
  91         elif __contains_word "$verb" ${VERBS[DOT]}; then
  92                 if [[ $cur = -* ]]; then
  93                         comps='--help --version --system --user --from-pattern --to-pattern --order --require'
  94                 fi
  95
  96         elif __contains_word "$verb" ${VERBS[LOG_LEVEL]}; then
  97                 if [[ $cur = -* ]]; then
  98                         comps='--help --version --system --user'
  99                 else
 100                         comps='debug info notice warning err crit alert emerg'
 101                 fi
 102
 103         elif __contains_word "$verb" ${VERBS[VERIFY]}; then
 104                 if [[ $cur = -* ]]; then
 105                         comps='--help --version --system --user --no-man'
 106                 else
 107                         comps=$( compgen -A file -- "$cur" )
 108                         compopt -o filenames
 109                 fi
 110
 111         fi
 112
 113         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 114         return 0
 115 }
 116
 117 complete -F _systemd_analyze systemd-analyze