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