shell-completion/bash/journalctl

   1 # journalctl(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-images --no-legend --no-pager; machinectl list --no-legend --no-pager; echo ".host") | \
  31                 { while read a b; do echo " $a"; done; } | sort -u;
  32 }
  33
  34 __syslog_priorities=(emerg alert crit err warning notice info debug)
  35
  36 _journalctl() {
  37         local field_vals= cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  38         local -A OPTS=(
  39                 [STANDALONE]='-a --all --full --system --user
  40                               --disk-usage -f --follow --header
  41                               -h --help -l --local -m --merge --no-pager
  42                               --no-tail -q --quiet --setup-keys --verify
  43                               --version --list-catalog --update-catalog --list-boots
  44                               --show-cursor --dmesg -k --pager-end -e -r --reverse
  45                               --utc -x --catalog --no-full --force --dump-catalog
  46                               --flush --rotate --sync --no-hostname -N --fields'
  47                        [ARG]='-b --boot -D --directory --file -F --field -t --identifier
  48                               -M --machine -o --output -u --unit --user-unit -p --priority
  49                               --root --case-sensitive'
  50                 [ARGUNKNOWN]='-c --cursor --interval -n --lines -S --since -U --until
  51                               --after-cursor --verify-key -g --grep
  52                               --vacuum-size --vacuum-time --vacuum-files --output-fields'
  53         )
  54
  55         if __contains_word "$prev" ${OPTS[ARG]} ${OPTS[ARGUNKNOWN]}; then
  56                 case $prev in
  57                         --boot|-b)
  58                                 comps=$(journalctl -F '_BOOT_ID' 2>/dev/null)
  59                         ;;
  60                         --directory|-D|--root)
  61                                 comps=$(compgen -d -- "$cur")
  62                                 compopt -o filenames
  63                         ;;
  64                         --file)
  65                                 comps=$(compgen -f -- "$cur")
  66                                 compopt -o filenames
  67                         ;;
  68                         --output|-o)
  69                                 comps=$( journalctl --output=help 2>/dev/null )
  70                         ;;
  71                         --field|-F)
  72                                 comps=$(journalctl --fields | sort 2>/dev/null)
  73                         ;;
  74                         --machine|-M)
  75                                 comps=$( __get_machines )
  76                         ;;
  77                         --priority|-p)
  78                                 comps=${__syslog_priorities[*]}
  79                         ;;
  80                         --unit|-u)
  81                                 comps=$(journalctl -F '_SYSTEMD_UNIT' 2>/dev/null)
  82                         ;;
  83                         --user-unit)
  84                                 comps=$(journalctl -F '_SYSTEMD_USER_UNIT' 2>/dev/null)
  85                         ;;
  86                         --identifier|-t)
  87                                 comps=$(journalctl -F 'SYSLOG_IDENTIFIER' 2>/dev/null)
  88                         ;;
  89                         --case-sensitive)
  90                                 comps='yes no'
  91                         ;;
  92                         *)
  93                                 return 0
  94                         ;;
  95                 esac
  96                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  97                 return 0
  98         fi
  99
 100         if [[ $cur = -* ]]; then
 101                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
 102                 return 0
 103         elif [[ $cur = *=* ]]; then
 104                 mapfile -t field_vals < <(journalctl -F "${prev%=}" 2>/dev/null)
 105                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur#=}") )
 106         elif [[ $cur = /dev* ]]; then
 107                 compopt -o filenames
 108                 COMPREPLY=( $(compgen -f -- "${cur}") )
 109         elif [[ $cur = /* ]]; then
 110                 # Append /dev/ to the list of completions, so that
 111                 # after typing /<TAB><TAB> the user sees /dev/ as one
 112                 # of the alternatives. Later on the rule above will
 113                 # take care of showing device files in /dev/.
 114                 mapfile -t field_vals < <(journalctl -F "_EXE" 2>/dev/null; echo '/dev/')
 115                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur}") )
 116                 if [[ "${COMPREPLY[@]}" = '/dev/' ]]; then
 117                     compopt -o filenames
 118                     COMPREPLY=( $(compgen -f -- "${cur}") )
 119                 fi
 120         elif [[ $prev = '=' ]]; then
 121                 mapfile -t field_vals < <(journalctl -F "${COMP_WORDS[COMP_CWORD-2]}" 2>/dev/null)
 122                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "$cur") )
 123         else
 124                 mapfile -t field_vals < <(journalctl --fields 2>/dev/null)
 125                 compopt -o nospace
 126                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -S= -- "$cur") )
 127         fi
 128 }
 129
 130 complete -F _journalctl journalctl