#compdef journalctl

_list_fields() {

local -a journal_fields

journal_fields=(MESSAGE{,_ID} PRIORITY CODE_{FILE,LINE,FUNC}

ERRNO SYSLOG_{FACILITY,IDENTIFIER,PID}

_{P,U,G}ID _COMM _EXE _CMDLINE

_AUDIT_{SESSION,LOGINUID}

_SYSTEMD_{CGROUP,SESSION,UNIT,OWNER_UID}

_SYSTEMD_USER_UNIT USER_UNIT

_SELINUX_CONTEXT _SOURCE_REALTIME_TIMESTAMP

_{BOOT,MACHINE}_ID _HOSTNAME _TRANSPORT

_KERNEL_{DEVICE,SUBSYSTEM}

_UDEV_{SYSNAME,DEVNODE,DEVLINK}

__CURSOR __{REALTIME,MONOTONIC}_TIMESTAMP)

case $_jrnl_none in

yes) _values -s '=' 'possible fields' \

"${journal_fields[@]}:value:_journal_fields ${words[CURRENT]%%=*}" ;;

*) _describe 'possible fields' journal_fields ;;

esac

}

_journal_none() {

local -a _commands _files _jrnl_none

# Setting use-cache will slow this down considerably

_commands=( ${"$(_call_program commands "$service" -F _EXE 2>/dev/null)"} )

_jrnl_none='yes'

_alternative : \

'files:/dev files:_files -W /dev -P /dev/' \

"commands:commands:($_commands[@])" \

'fields:fields:_list_fields'

}

_journal_fields() {

local -a _fields cmd

cmd=("journalctl" "-F ${@[-1]}" "2>/dev/null" )

_fields=( ${(f)"$(_call_program fields $cmd[@])"} )

typeset -U _fields

_describe 'possible values' _fields

}

_journal_boots() {

local -a _bootid _previousboots

_bootid=( ${(fao)"$(_call_program bootid "$service -F _BOOT_ID")"} )

_previousboots=( -{1..${#_bootid}} )

_alternative : \

"offsets:boot offsets:(${_previousboots[1,-2]})" \

"bootid:boot ids:(${_bootid[@]})"

}

_arguments -s \

{-h,--help}'[Show this help]' \

'--version[Show package version]' \

'--no-pager[Do not pipe output into a pager]' \

{-l,--full}'[Show long fields in full]' \

{-a,--all}'[Show all fields, including long and unprintable]' \

{-f,--follow}'[Follow journal]' \

{-e,--pager-end}'[Jump to the end of the journal in the pager]' \

{-n+,--lines=}'[Number of journal entries to show]:integer' \

'--no-tail[Show all lines, even in follow mode]' \

{-r,--reverse}'[Reverse output]' \

{-o+,--output=}'[Change journal output mode]:output modes:_sd_outputmodes' \

{-x,--catalog}'[Show explanatory texts with each log line]' \

{-q,--quiet}"[Don't show privilege warning]" \

{-m,--merge}'[Show entries from all available journals]' \

{-b+,--boot=}'[Show data only from the specified boot or offset]:boot id or offset:_journal_boots' \

'--list-boots[List boots ordered by time]' \

{-k,--dmesg}'[Show only kernel messages from the current boot]' \

{-u+,--unit=}'[Show data only from the specified unit]:units:_journal_fields _SYSTEMD_UNIT' \

'--user-unit=[Show data only from the specified user session unit]:units:_journal_fields USER_UNIT' \

{-p+,--priority=}'[Show only messages within the specified priority range]:priority:_journal_fields PRIORITY' \

{-c+,--cursor=}'[Start showing entries from the specified cursor]:cursors:_journal_fields __CURSORS' \

'--after-cursor=[Start showing entries from after the specified cursor]:cursors:_journal_fields __CURSORS' \

'--since=[Start showing entries on or newer than the specified date]:YYYY-MM-DD HH\:MM\:SS' \

'--until=[Stop showing entries on or older than the specified date]:YYYY-MM-DD HH\:MM\:SS' \

{-F,--field=}'[List all values a certain field takes]:Fields:_list_fields' \

'--system[Show system and kernel messages]' \

'--user[Show messages from user services]' \

{-D+,--directory=}'[Show journal files from directory]:directories:_directories' \

'--file=[Operate on specified journal files]:file:_files' \

'--root=[Operate on catalog hierarchy under specified directory]:directories:_directories' \

'--new-id128[Generate a new 128 Bit ID]' \

'--header[Show journal header information]' \

'--disk-usage[Show total disk usage]' \

'--list-catalog[List messages in catalog]' \

'--dump-catalog[Dump messages in catalog]' \

'--update-catalog[Update binary catalog database]' \

'--setup-keys[Generate a new FSS key pair]' \

'--force[Force recreation of the FSS keys]' \

'--interval=[Time interval for changing the FSS sealing key]:time interval' \

'--verify[Verify journal file consistency]' \

'--verify-key=[Specify FSS verification key]:FSS key' \

'*::default: _journal_none'