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 word=$1; shift
  22         for w in $*; do [[ $w = $word ]] && return 0; done
  23         return 1
  24 }
  25
  26 __journal_fields=(MESSAGE{,_ID} PRIORITY CODE_{FILE,LINE,FUNC}
  27                   ERRNO SYSLOG_{FACILITY,IDENTIFIER,PID} COREDUMP_EXE
  28                   _{P,U,G}ID _COMM _EXE _CMDLINE
  29                   _AUDIT_{SESSION,LOGINUID}
  30                   _SYSTEMD_{CGROUP,SESSION,UNIT,OWNER_UID}
  31                   _SELINUX_CONTEXT _SOURCE_REALTIME_TIMESTAMP
  32                   _{BOOT,MACHINE}_ID _HOSTNAME _TRANSPORT
  33                   _KERNEL_{DEVICE,SUBSYSTEM}
  34                   _UDEV_{SYSNAME,DEVNODE,DEVLINK}
  35                   __CURSOR __{REALTIME,MONOTONIC}_TIMESTAMP)
  36
  37 _journalctl() {
  38         local field_vals= cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  39         local -A OPTS=(
  40                 [STANDALONE]='-a --all --full
  41                               -b --this-boot --disk-usage -f --follow --header
  42                               -h --help -l --local --new-id128 -m --merge --no-pager
  43                               --no-tail -q --quiet --setup-keys --this-boot --verify
  44                               --version --list-catalog --update-catalog'
  45                        [ARG]='-D --directory -F --field -o --output -u --unit --user-unit'
  46                 [ARGUNKNOWN]='-c --cursor --interval -n --lines -p --priority --since --until
  47                               --verify-key'
  48         )
  49
  50         if __contains_word "$prev" ${OPTS[ARG]} ${OPTS[ARGUNKNOWN]}; then
  51                 case $prev in
  52                         --directory|-D)
  53                                 comps=$(compgen -d -- "$cur")
  54                                 compopt -o filenames
  55                         ;;
  56                         --output|-o)
  57                                 comps='short short-monotonic verbose export json cat'
  58                         ;;
  59                         --field|-F)
  60                                 comps=${__journal_fields[*]}
  61                         ;;
  62                         --unit|-u)
  63                                 comps=$(journalctl -F '_SYSTEMD_UNIT' 2>/dev/null)
  64                         ;;
  65                         --user-unit)
  66                                 comps=$(journalctl -F '_SYSTEMD_USER_UNIT' 2>/dev/null)
  67                         ;;
  68                         *)
  69                                 return 0
  70                         ;;
  71                 esac
  72                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  73                 return 0
  74         fi
  75
  76         if [[ $cur = -* ]]; then
  77                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  78                 return 0
  79         elif [[ $cur = *=* ]]; then
  80                 mapfile -t field_vals < <(journalctl -F "${prev%=}" 2>/dev/null)
  81                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur#=}") )
  82         elif [[ $cur = /dev* ]]; then
  83                 compopt -o filenames
  84                 COMPREPLY=( $(compgen -f -- "${cur}") )
  85         elif [[ $cur = /* ]]; then
  86                 # Append /dev/ to the list of completions, so that
  87                 # after typing /<TAB><TAB> the user sees /dev/ as one
  88                 # of the alternatives. Later on the rule above will
  89                 # take care of showing device files in /dev/.
  90                 mapfile -t field_vals < <(journalctl -F "_EXE" 2>/dev/null; echo '/dev/')
  91                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "${cur}") )
  92                 if [[ "${COMPREPLY[@]}" = '/dev/' ]]; then
  93                     compopt -o filenames
  94                     COMPREPLY=( $(compgen -f -- "${cur}") )
  95                 fi
  96         elif [[ $prev = '=' ]]; then
  97                 mapfile -t field_vals < <(journalctl -F "${COMP_WORDS[COMP_CWORD-2]}" 2>/dev/null)
  98                 COMPREPLY=( $(compgen -W '${field_vals[*]}' -- "$cur") )
  99         else
 100                 compopt -o nospace
 101                 COMPREPLY=( $(compgen -W '${__journal_fields[*]}' -S= -- "$cur") )
 102         fi
 103 }
 104
 105 complete -F _journalctl journalctl