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 " $a"; done; } | sort -u;
  31 }
  32
  33 __journal_fields=(MESSAGE{,_ID} PRIORITY CODE_{FILE,LINE,FUNC}
  34                   ERRNO SYSLOG_{FACILITY,IDENTIFIER,PID} COREDUMP_EXE
  35                   _{P,U,G}ID _COMM _EXE _CMDLINE
  36                   _CAP_EFFECTIVE _AUDIT_{SESSION,LOGINUID}
  37                   _SYSTEMD_{CGROUP,SESSION,{,USER_}UNIT,OWNER_UID,SLICE}
  38                   _SELINUX_CONTEXT _SOURCE_REALTIME_TIMESTAMP
  39                   _{BOOT,MACHINE}_ID _HOSTNAME _TRANSPORT
  40                   _KERNEL_{DEVICE,SUBSYSTEM}
  41                   _UDEV_{SYSNAME,DEVNODE,DEVLINK}
  42                   __CURSOR __{REALTIME,MONOTONIC}_TIMESTAMP)
  43
  44 __syslog_priorities=(emerg alert crit err warning notice info debug)
  45
  46 _journalctl() {
  47         local field_vals= cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  48         local -A OPTS=(
  49                 [STANDALONE]='-a --all --full --system --user
  50                               --disk-usage -f --follow --header
  51                               -h --help -l --local --new-id128 -m --merge --no-pager
  52                               --no-tail -q --quiet --setup-keys --this-boot --verify
  53                               --version --list-catalog --update-catalog --list-boots
  54                               --show-cursor --dmesg -k --pager-end -e -r --reverse
  55                               --utc -x --catalog --no-full --force --dump-catalog
  56                               --flush --rotate --sync'
  57                        [ARG]='-b --boot --this-boot -D --directory --file -F --field
  58                               -M --machine -o --output -u --unit --user-unit -p --priority
  59                               --vacuum-size --vacuum-time'
  60                 [ARGUNKNOWN]='-c --cursor --interval -n --lines -S --since -U --until
  61                               --after-cursor --verify-key -t --identifier
  62                               --root'
  63         )
  64
  65         if __contains_word "$prev" ${OPTS[ARG]} ${OPTS[ARGUNKNOWN]}; then
  66                 case $prev in
  67                         --boot|--this-boot|-b)
  68                                 comps=$(journalctl -F '_BOOT_ID' 2>/dev/null)
  69                         ;;
  70                         --directory|-D)
  71                                 comps=$(compgen -d -- "$cur")
  72                                 compopt -o filenames
  73                         ;;
  74                         --file)
  75                                 comps=$(compgen -f -- "$cur")
  76                                 compopt -o filenames
  77                         ;;
  78                         --output|-o)
  79                                 comps='short short-iso short-precise short-monotonic verbose export json json-pretty json-sse cat'
  80                         ;;
  81                         --field|-F)
  82                                 comps=${__journal_fields[*]}
  83                         ;;
  84                         --machine|-M)
  85                                 comps=$( __get_machines )
  86                         ;;
  87                         --priority|-p)
  88                                 comps=${__syslog_priorities[*]}
  89                         ;;
  90                         --unit|-u)
  91                                 comps=$(journalctl -F '_SYSTEMD_UNIT' 2>/dev/null)
  92                         ;;
  93                         --user-unit)
  94                                 comps=$(journalctl -F '_SYSTEMD_USER_UNIT' 2>/dev/null)
  95                         ;;
  96                         *)
  97                                 return 0
  98                         ;;
  99                 esac
 100                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 101                 return 0
 102         fi
 103
 104         if [[ $cur = -* ]]; then
 105                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
 106                 return 0
 107         elif [[ $cur = *=* ]]; then
 108                 mapfile -t field_vals < <(journalctl -F "${prev%=}" 2>/dev/null)
 109                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur#=}") )
 110         elif [[ $cur = /dev* ]]; then
 111                 compopt -o filenames
 112                 COMPREPLY=( $(compgen -f -- "${cur}") )
 113         elif [[ $cur = /* ]]; then
 114                 # Append /dev/ to the list of completions, so that
 115                 # after typing /<TAB><TAB> the user sees /dev/ as one
 116                 # of the alternatives. Later on the rule above will
 117                 # take care of showing device files in /dev/.
 118                 mapfile -t field_vals < <(journalctl -F "_EXE" 2>/dev/null; echo '/dev/')
 119                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur}") )
 120                 if [[ "${COMPREPLY[@]}" = '/dev/' ]]; then
 121                     compopt -o filenames
 122                     COMPREPLY=( $(compgen -f -- "${cur}") )
 123                 fi
 124         elif [[ $prev = '=' ]]; then
 125                 mapfile -t field_vals < <(journalctl -F "${COMP_WORDS[COMP_CWORD-2]}" 2>/dev/null)
 126                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "$cur") )
 127         else
 128                 compopt -o nospace
 129                 COMPREPLY=( $(compgen -W '${__journal_fields[*]}' -S= -- "$cur") )
 130         fi
 131 }
 132
 133 complete -F _journalctl journalctl