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                   _AUDIT_{SESSION,LOGINUID}
  31                   _SYSTEMD_{CGROUP,SESSION,UNIT,OWNER_UID}
  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                        [ARG]='-b --boot --this-boot -D --directory --file -F --field
  49                               -o --output -u --unit --user-unit -p --priority'
  50                 [ARGUNKNOWN]='-c --cursor --interval -n --lines --since --until
  51                               --verify-key'
  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-monotonic verbose export json cat'
  69                         ;;
  70                         --field|-F)
  71                                 comps=${__journal_fields[*]}
  72                         ;;
  73                         --priority|-p)
  74                                 comps=${__syslog_priorities[*]}
  75                         ;;
  76                         --unit|-u)
  77                                 comps=$(journalctl -F '_SYSTEMD_UNIT' 2>/dev/null)
  78                         ;;
  79                         --user-unit)
  80                                 comps=$(journalctl -F '_SYSTEMD_USER_UNIT' 2>/dev/null)
  81                         ;;
  82                         *)
  83                                 return 0
  84                         ;;
  85                 esac
  86                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  87                 return 0
  88         fi
  89
  90         if [[ $cur = -* ]]; then
  91                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  92                 return 0
  93         elif [[ $cur = *=* ]]; then
  94                 mapfile -t field_vals < <(journalctl -F "${prev%=}" 2>/dev/null)
  95                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur#=}") )
  96         elif [[ $cur = /dev* ]]; then
  97                 compopt -o filenames
  98                 COMPREPLY=( $(compgen -f -- "${cur}") )
  99         elif [[ $cur = /* ]]; then
 100                 # Append /dev/ to the list of completions, so that
 101                 # after typing /<TAB><TAB> the user sees /dev/ as one
 102                 # of the alternatives. Later on the rule above will
 103                 # take care of showing device files in /dev/.
 104                 mapfile -t field_vals < <(journalctl -F "_EXE" 2>/dev/null; echo '/dev/')
 105                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur}") )
 106                 if [[ "${COMPREPLY[@]}" = '/dev/' ]]; then
 107                     compopt -o filenames
 108                     COMPREPLY=( $(compgen -f -- "${cur}") )
 109                 fi
 110         elif [[ $prev = '=' ]]; then
 111                 mapfile -t field_vals < <(journalctl -F "${COMP_WORDS[COMP_CWORD-2]}" 2>/dev/null)
 112                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "$cur") )
 113         else
 114                 compopt -o nospace
 115                 COMPREPLY=( $(compgen -W '${__journal_fields[*]}' -S= -- "$cur") )
 116         fi
 117 }
 118
 119 complete -F _journalctl journalctl