shell-completion/bash/journalctl

   1 # journalctl(1) completion                                -*- shell-script -*-
   2 #
   3 # This file is part of systemd.
   4 #
   5 # Copyright 2010 Ran Benita
   6 #
   7 # systemd is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU Lesser General Public License as published by
   9 # the Free Software Foundation; either version 2.1 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # systemd is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15 # General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public License
  18 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
  19
  20 __contains_word () {
  21         local w word=$1; shift
  22         for w in "$@"; do
  23                 [[ $w = "$word" ]] && return
  24         done
  25 }
  26
  27 __get_machines() {
  28         local a b
  29         (machinectl list-images --no-legend --no-pager; machinectl list --no-legend --no-pager; echo ".host") | \
  30                 { while read a b; do echo " $a"; done; } | sort -u;
  31 }
  32
  33 __syslog_priorities=(emerg alert crit err warning notice info debug)
  34
  35 _journalctl() {
  36         local field_vals= cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  37         local -A OPTS=(
  38                 [STANDALONE]='-a --all --full --system --user
  39                               --disk-usage -f --follow --header
  40                               -h --help -l --local --new-id128 -m --merge --no-pager
  41                               --no-tail -q --quiet --setup-keys --this-boot --verify
  42                               --version --list-catalog --update-catalog --list-boots
  43                               --show-cursor --dmesg -k --pager-end -e -r --reverse
  44                               --utc -x --catalog --no-full --force --dump-catalog
  45                               --flush --rotate --sync --no-hostname'
  46                        [ARG]='-b --boot --this-boot -D --directory --file -F --field
  47                               -M --machine -o --output -u --unit --user-unit -p --priority
  48                               --vacuum-size --vacuum-time --vacuum-files'
  49                 [ARGUNKNOWN]='-c --cursor --interval -n --lines -S --since -U --until
  50                               --after-cursor --verify-key -t --identifier
  51                               --root'
  52         )
  53
  54         if __contains_word "$prev" ${OPTS[ARG]} ${OPTS[ARGUNKNOWN]}; then
  55                 case $prev in
  56                         --boot|--this-boot|-b)
  57                                 comps=$(journalctl -F '_BOOT_ID' 2>/dev/null)
  58                         ;;
  59                         --directory|-D)
  60                                 comps=$(compgen -d -- "$cur")
  61                                 compopt -o filenames
  62                         ;;
  63                         --file)
  64                                 comps=$(compgen -f -- "$cur")
  65                                 compopt -o filenames
  66                         ;;
  67                         --output|-o)
  68                                 comps='short short-full short-iso short-precise short-monotonic short-unix verbose export json json-pretty json-sse cat'
  69                         ;;
  70                         --field|-F)
  71                                 comps=$(journalctl --fields | sort 2>/dev/null)
  72                         ;;
  73                         --machine|-M)
  74                                 comps=$( __get_machines )
  75                         ;;
  76                         --priority|-p)
  77                                 comps=${__syslog_priorities[*]}
  78                         ;;
  79                         --unit|-u)
  80                                 comps=$(journalctl -F '_SYSTEMD_UNIT' 2>/dev/null)
  81                         ;;
  82                         --user-unit)
  83                                 comps=$(journalctl -F '_SYSTEMD_USER_UNIT' 2>/dev/null)
  84                         ;;
  85                         --identifier|-t)
  86                                 comps=$(journalctl -F 'SYSLOG_IDENTIFIER' 2>/dev/null)
  87                         ;;
  88                         *)
  89                                 return 0
  90                         ;;
  91                 esac
  92                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  93                 return 0
  94         fi
  95
  96         if [[ $cur = -* ]]; then
  97                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  98                 return 0
  99         elif [[ $cur = *=* ]]; then
 100                 mapfile -t field_vals < <(journalctl -F "${prev%=}" 2>/dev/null)
 101                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur#=}") )
 102         elif [[ $cur = /dev* ]]; then
 103                 compopt -o filenames
 104                 COMPREPLY=( $(compgen -f -- "${cur}") )
 105         elif [[ $cur = /* ]]; then
 106                 # Append /dev/ to the list of completions, so that
 107                 # after typing /<TAB><TAB> the user sees /dev/ as one
 108                 # of the alternatives. Later on the rule above will
 109                 # take care of showing device files in /dev/.
 110                 mapfile -t field_vals < <(journalctl -F "_EXE" 2>/dev/null; echo '/dev/')
 111                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur}") )
 112                 if [[ "${COMPREPLY[@]}" = '/dev/' ]]; then
 113                     compopt -o filenames
 114                     COMPREPLY=( $(compgen -f -- "${cur}") )
 115                 fi
 116         elif [[ $prev = '=' ]]; then
 117                 mapfile -t field_vals < <(journalctl -F "${COMP_WORDS[COMP_CWORD-2]}" 2>/dev/null)
 118                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "$cur") )
 119         else
 120                 mapfile -t field_vals < <(journalctl --fields 2>/dev/null)
 121                 compopt -o nospace
 122                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -S= -- "$cur") )
 123         fi
 124 }
 125
 126 complete -F _journalctl journalctl