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#compdef openstack aodh barbican ceilometer cinder cloudkitty designate glance gnocchi heat ironic keystone magnum manila mistral monasca murano neutron nova sahara senlin swift trove
# https://wiki.openstack.org/wiki/OpenStackClients
# http://docs.openstack.org/user-guide/common/cli-install-openstack-command-line-clients.html
local curcontext="$curcontext" state line expl ret=1
local -a clnts_compl_new clnts_compl_old clnts_swift_like
#
# We support three different client categories:
# 1) Clients with new style complete command where output is like:
#
# cmds='alarm alarm-history capabilities complete help'
# cmds_alarm='create delete list show update'
# cmds_alarm_history='search show'
# cmds_alarm_history_search='-h --help -f --format -c --column --max-width --noindent --quote --query'
#
# 2) Clients with old style bash-completion command which does
# not separate options and commands:
#
# --tenant_id floatingip-delete bgp-peer-delete --default-prefixlen net-create [...]
#
# 3) Swift, slightly different from 2)
#
clnts_compl_new=( aodh barbican designate gnocchi openstack )
clnts_compl_old=( ceilometer cinder cloudkitty glance heat ironic keystone magnum manila mistral monasca murano neutron nova sahara senlin trove )
clnts_swift_like=( swift )
# Python clients take quite some time to start up and some (openstack(1))
# even go over the network for completions so we cache things pretty hard
if (( ! $+_cache_openstack_clnt_opts )); then
typeset -gA _cache_openstack_clnt_outputs
typeset -gA _cache_openstack_clnt_opts
typeset -gA _cache_openstack_clnt_cmds
typeset -gA _cache_openstack_clnt_cmds_opts
typeset -gA _cache_openstack_clnt_cmds_subcmds
typeset -gA _cache_openstack_clnt_cmds_subcmd_opts
fi
local -a conn_opts
local opt arg word
# Only openstack(1) requires parameters to provide completion info
if [[ $service == openstack && -n ${words[(r)--os-*]} ]]; then
if (( ! $+_cache_openstack_conn_opts )); then
_cache_openstack_conn_opts=( ${(M)${=${(f)"$($service help 2>/dev/null)"}}:#--os-*} )
fi
# --os-tenant-id --os-tenant-name are deprecated but still widely used
for opt in ${=_cache_openstack_conn_opts} --os-tenant-id --os-tenant-name; do
arg=
for word in ${words:1}; do
[[ $word == $opt ]] && arg=$word && break
done
[[ -n $arg && -n ${arg##-*} ]] && conn_opts=( $conn_opts $opt $arg )
done
fi
# New style clients
if [[ -n ${clnts_compl_new[(r)$service]} ]]; then
if [[ -z $_cache_openstack_clnt_cmds[$service] ]]; then
# Populate caches - clnt_outputs is command raw output used later
_cache_openstack_clnt_outputs[$service]=${:-"$($service ${(Q)conn_opts} complete 2>/dev/null)"}
_cache_openstack_clnt_opts[$service]=${${${${(M)${${${${=${(f)"$($service help 2>/dev/null)"}}/\[}/\]}/\;}:#-[-0-9A-Za-z]*}/,}/\.}%--os-}
_cache_openstack_clnt_cmds[$service]=${${${${_cache_openstack_clnt_outputs[$service]}/* cmds=\'}/\'*}/complete}
fi
local cmd subcmd
# Determine the command
for word in ${words:1}; do
local s=${_cache_openstack_clnt_cmds[$service]}
[[ $s[(wI)$word] -gt 0 ]] && cmd=$word && break
done
# Populate the subcommand cache
if [[ -n $cmd && -z $_cache_openstack_clnt_cmds_subcmds[$service$cmd] ]]; then
local t=cmds_${cmd//-/_}
_cache_openstack_clnt_cmds_subcmds[$service$cmd]=${${${_cache_openstack_clnt_outputs[$service]}/* $t=\'}/\'*}
fi
# Determine the subcommand
if [[ -n $cmd ]]; then
for word in ${words:2}; do
local s=${_cache_openstack_clnt_cmds_subcmds[$service$cmd]}
[[ $s[(wI)$word] -gt 0 ]] && subcmd=$word && break
done
# Populate subcommand option cache
if [[ -n $subcmd && -z $_cache_openstack_clnt_cmds_subcmd_opts[$service${cmd}--$subcmd] ]]; then
local t=cmds_${cmd//-/_}_${subcmd//-/_}
_cache_openstack_clnt_cmds_subcmd_opts[$service${cmd}--$subcmd]=${${${_cache_openstack_clnt_outputs[$service]}/* $t=\'}/\'*}
fi
fi
# Special treatment for the help command
if [[ $cmd == help ]]; then
if [[ $words[CURRENT-1] == $cmd && $words[CURRENT] != -* ]]; then
# Offer commands
[[ -n $_cache_openstack_clnt_cmds[$service] ]] && _values -w option ${(u)=_cache_openstack_clnt_cmds[$service]} && ret=0
elif [[ $words[CURRENT-2] == $cmd && $words[CURRENT-1] != -* && $words[CURRENT] != -* ]]; then
# Offer subcommands
local cmd=$words[CURRENT-1]
local t=cmds_${cmd//-/_}
[[ -z $_cache_openstack_clnt_cmds_subcmds[$service$cmd] ]] && _cache_openstack_clnt_cmds_subcmds[$service$cmd]=${${${_cache_openstack_clnt_outputs[$service]}/* $t=\'}/\'*}
[[ -n $_cache_openstack_clnt_cmds_subcmds[$service$cmd] ]] && _values -w option ${(u)=_cache_openstack_clnt_cmds_subcmds[$service$cmd]} && ret=0
else
# Handle help<TAB> properly
_values -w option help && ret=0
fi
# Client options
elif [[ -z $cmd && $words[CURRENT] == -* ]]; then
_values -w option ${(u)=_cache_openstack_clnt_opts[$service]} && ret=0
# Commands
elif [[ -z $cmd ]]; then
if [[ -z $_cache_openstack_clnt_cmds[$service] ]]; then
_message "missing authentication options"
else
_values -w option ${(u)=_cache_openstack_clnt_cmds[$service]} && ret=0
fi
# Subcommands
elif [[ -z $subcmd ]]; then
[[ -n $_cache_openstack_clnt_cmds_subcmds[$service$cmd] ]] && _values -w option ${(u)=_cache_openstack_clnt_cmds_subcmds[$service$cmd]} && ret=0
# Subcommand options
else
{ ! zstyle -T ":completion:${curcontext}:options" prefix-needed || [[ -prefix - ]] } && \
[[ -n $_cache_openstack_clnt_cmds_subcmd_opts[$service${cmd}--$subcmd] ]] && _values -w option ${(u)=_cache_openstack_clnt_cmds_subcmd_opts[$service${cmd}--$subcmd]//\:/\\\:} && ret=0
fi
# Old style clients
elif [[ -n ${clnts_compl_old[(r)$service]} ]]; then
if [[ -z $_cache_openstack_clnt_cmds[$service] ]]; then
# Populate caches
_cache_openstack_clnt_opts[$service]=${${${(M)${${${${=${(f)"$($service help 2>/dev/null)"}}/\[}/\]}/\;}:#-[-0-9A-Za-z]*}/,}/\.}
_cache_openstack_clnt_cmds[$service]=${${(M)${=${(f)"$($service bash-completion 2>/dev/null)"}}:#[A-Za-z]*}/bash-completion}
fi
local cmd
# Determine the command
for word in ${words:1}; do
local s=${_cache_openstack_clnt_cmds[$service]}
[[ $s[(wI)$word] -gt 0 ]] && cmd=$word && break
done
# Populate command option cache
# Mostly no options for help, prevent consecutive calls with help here
if [[ -n $cmd && $cmd != help && -z $_cache_openstack_clnt_cmds_opts[$service$cmd] ]]; then
_cache_openstack_clnt_cmds_opts[$service$cmd]=${${${(M)${${${${=${(f)"$($service help $cmd 2>/dev/null)"}}/\[}/\]}/\;}:#-[-0-9A-Za-z]*}/,}/\.}
fi
# Special treatment for the help command
if [[ $cmd == help ]]; then
if [[ $words[CURRENT-1] == help && $words[CURRENT] != -* ]]; then
_values -w option ${(u)=_cache_openstack_clnt_cmds[$service]} && ret=0
else
_values -w option help && ret=0
fi
# Client options
elif [[ -z $cmd && $words[CURRENT] == -* ]]; then
_values -w option ${(u)=_cache_openstack_clnt_opts[$service]} && ret=0
# Commands
elif [[ -z $cmd ]]; then
_values -w option ${(u)=_cache_openstack_clnt_cmds[$service]} && ret=0
# Command options
else
{ ! zstyle -T ":completion:${curcontext}:options" prefix-needed || [[ -prefix - ]] } && \
[[ -n $_cache_openstack_clnt_cmds_opts[$service$cmd] ]] && _values -w option ${(u)=_cache_openstack_clnt_cmds_opts[$service$cmd]//\:/\\\:} && ret=0
fi
# Swift like clients
elif [[ -n ${clnts_swift_like[(r)$service]} ]]; then
if [[ -z $_cache_openstack_clnt_cmds[$service] ]]; then
# Populate caches - clnt_outputs is command raw output used later
_cache_openstack_clnt_outputs[$service]=${(f)"$($service --help 2>/dev/null)"}
_cache_openstack_clnt_opts[$service]=${${${${(M)${${${${=_cache_openstack_clnt_outputs[$service]}/\[}/\]}/\;}:#-[-0-9A-Za-z]*}/,}/\.}/=*}
_cache_openstack_clnt_cmds[$service]=${=${(M)${(M)${(f)_cache_openstack_clnt_outputs[$service]}:# [a-z]*}/ [A-Z]*}}
fi
local cmd
# Determine the command
for word in ${words:1}; do
local s=${_cache_openstack_clnt_cmds[$service]}
[[ $s[(wI)$word] -gt 0 ]] && cmd=$word && break
done
# Populate command option cache
if [[ -n $cmd && -z $_cache_openstack_clnt_cmds_opts[$service$cmd] ]]; then
_cache_openstack_clnt_cmds_opts[$service$cmd]=${${${(M)${${${${=${(f)"$($service $cmd --help 2>/dev/null)"}}/\[}/\]}/\;}:#-[-0-9A-Za-z]*}/,}/\.}
fi
# Client options
if [[ -z $cmd && $words[CURRENT] == -* ]]; then
_values -w option ${(u)=_cache_openstack_clnt_opts[$service]} && ret=0
# Commands
elif [[ -z $cmd ]]; then
_values -w option ${(u)=_cache_openstack_clnt_cmds[$service]} && ret=0
# Command options
else
{ ! zstyle -T ":completion:${curcontext}:options" prefix-needed || [[ -prefix - ]] } && \
[[ -n $_cache_openstack_clnt_cmds_opts[$service$cmd] ]] && _values -w option ${(u)=_cache_openstack_clnt_cmds_opts[$service$cmd]//\:/\\\:} && ret=0
fi
fi
return ret
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