#compdef dpkg dpkg-deb

local _dpkg_deb_actions _dpkg_common_actions _dpkg_actions _dpkg_options
local _dpkg_options_recursive _dpkg_actions_install _dpkg_actions_record_avail
local curcontext="$curcontext" context state line expl ret
typeset -A opt_args

_dpkg_deb_actions=(
  '(--build -b)'{--build,-b}'[build archive]:directory:_files -/'
  '(--contents -c)'{--contents,-c}'[list contents]:Debian package:_files -g \*.u\#deb'
  '(--info -I)'{--info,-I}'[show info]:Debian package:_files -g \*.u\#deb'
  '(--field -f)'{--field,-f}'[show fields]:Debian package:_files -g \*.u\#deb'
  '(--control -e)'{--control,-e}'[extract control]:Debian package:_files -g \*.u\#deb'
  '(--extract -x)'{--extract,-x}'[extract files]:Debian package:_files -g \*.u\#deb'
  '(--vextract -X)'{--vextract,-X}'[extract and list files]:Debian package:_files -g \*.u\#deb'
  '--fsys-tarfile[output fs tarfile]:Debian package:_files -g \*.u\#deb'
)

_dpkg_common_actions=(
  '--help[show help]'
  '--version[show version]'
  '(--license --licence)'{--license,--licence}'[show licencing]'
)

_dpkg_actions=(
  '(--install -i)'{--install,-i}'[install packages]:*:Debian packages:->install'
  '--unpack[unpack package]:Debian package:_files -g \*.deb'
  '--configure[reconfigure specified packages]:*:package:->configure'
  '(--remove -r)'{--remove,-r}'[remove package]:*:package:->remove'
  '(--purge -P)'{--purge,-P}'[purge package]:*:package:->purge'
  '(--print-avail -p)'{--print-avail,-p}'[display available details]:packages:_deb_packages avail'
  '--update-avail[update available]:package file:_files'
  '--merge-avail[merge available]:package file:_files'
  '(--record-avail -A)'{--record-avail,-A}'[record available]:*:package files:->record_avail'
  '--forget-old-unavail[forget uninstalled unavailable]'
  '--clear-avail[clear available]'
  '(--list -l)'{--list,-l}'[list packages]:*:packages:->list'
  '(--status -s)'{--status,-s}'[display package status]:*:packages:->status'
  '(--audit -C)'{--audit,-C}'[check for broken pkgs]'
  '--get-selections[get selections]:pattern:'
  '--set-selections[set selections]'
  '--yet-to-unpack[list uninstalled]'
  '(--listfiles, -L)'{--listfiles,-L}'[list owned files]:*:packages:->listfiles'
  '(--search -S)'{--search,-S}'[search for file owner]:*:pattern:->search'
  '--print-architecture[print target architecture]'
  '--print-gnu-build-architecture'
  '--print-installation-architecture'
  '--compare-versions[compare version numbers]:*::expression:= ->compare_versions'
)

_dpkg_options=(
  '--abort-after[abort after errors]:number of errors:'
  '--admindir=[data directory]:directory:_files -/'
  '--root=[alternative root]:root:_files -/'
  '--instdir=[change inst root but not data dir]:_files -/'
  '(--selected-only -O)'{--selected-only,-O}'[skip unselected packages]'
  '(--skip-same-version -E)'{--skip-same-version,-E}'[skip packages with same version as installed]'
  '(--refuse-downgrade -G)'{--refuse-downgrade,-G}'[skip packages with earlier version than installed]'
  '(--auto-deconfigure -B)'{--auto-deconfigure,-B}'[install can break other packages]'
  '--largemem[optimize for >4Mb RAM]'
  '--smallmem[optimize for <4Mb RAM]'
  '--no-act[show potential actions but do not follow through]'
  '-D+[debug options]:debug options:(h 1 2 3)'
  '--debug=[debug options]:debug options:(help 1 2 3)'
  '--ignore-depends=[ignore depends involving package]:package:_deb_packages avail'
  --{force,refuse,no-force}'--[forcing options]:what:(auto-select downgrade configure-any hold bad-path not-root overwrite overwrite-diverted depends-version depends confnew confold confdef confmiss conflicts architecture overwrite-dir remove-reinstreq remove-essential)'
)

_dpkg_options_recursive=( '(--recursive -R)'{--recursive,-R}'[recursive]' )

# not needed anymore?
#  _dpkg_actions_install=('(--install)-i[install]' '(-i)--install')
#  _dpkg_actions_record_avail=('(--record-avail)-A[record available]' '(-A)--record-avail')

case "$service" in
dpkg)
_arguments -C -s "$_dpkg_actions[@]" \
           "$_dpkg_deb_actions[@]" \
           "$_dpkg_common_actions[@]" \
           "$_dpkg_options[@]" \
	   "$_dpkg_options_recursive[@]" && return 0
;;

dpkg-deb)
_arguments "$_dpkg_deb_actions[@]" \
           "$_dpkg_common_actions[@]" && return 0

;;

esac

case "$state" in
  install|record_avail)
	_call_function ret _dpkg_$state && return ret
# not needed anymore?
#            "${(@e):-\$_dpkg_actions_${state}}" \
	_arguments -C -A '-*' -s \
             "$_dpkg_options[@]" \
             \!${^_dpkg_actions%%:*} \
	   - recur \
             "$_dpkg_options_recursive[@]" \
	     '*:directory:_path_files -/' \
	   - nonrecur \
	     '*:Debian package:_path_files -g \*.deb'
  ;;
  remove|purge|status|listfiles)
	_call_function ret _dpkg_$state && return ret
	_arguments -C -A "-*" -s "$_dpkg_options[@]" \
	   '*:package:_deb_packages installed'
  ;;
  list)
	_call_function ret _dpkg_$state && return ret
	_arguments -C -A "-*" -s "$_dpkg_options[@]" \
           '*:packages:_deb_packages avail'
  ;;
  compare_versions)
	_call_function ret _dpkg_$state && return ret
	_arguments -C -A "-*" -s \
	'1:version A:' \
	'2:operator:(lt le eq ne ge gt lt-nl le-nl ge-nl gt-nl)' \
	'3:version B:'
  ;;
  configure)
	_call_function ret _dpkg_$state && return ret
	_arguments -C -A "-*" -s '--configure' \
	   "$_dpkg_options[@]" \
	  '(* --pending)-a[pending packages]' \
	  '(* -a)--pending' \
	  '*:package:_deb_packages installed'
  ;;
  search)
	_call_function ret _dpkg_$state && return ret
	_files
  ;;
esac