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#compdef envstore
## vim:ft=zsh
## completion for envstore release-3
## Daniel Friesel <derf@derf.homelinux.org>
## https://derf.homelinux.org/~derf/dotfiles/completion/_envstore
## see also: http://git.cloudconnected.org/?p=envstore.git;a=summary

local -a arguments_action arguments_action_nofile
local -a arguments_save arguments_rm arguments_eval
local lstate

arguments_action=(
	'1:action:(clear eval rm save show)'
)
arguments_action_nofile=(
	'1:action:(save)'
)

# envstore can't handle arrays, so only complete scalars and integers.
# Also, don't complete parameters marked 'special', since they're usually
# specific to the current shell
arguments_save=(
	'2:parameter:->param'
)
arguments_rm=(
	'2:saved parameter:->saved_param'
)
arguments_eval=(
	'2::option:(-e)'
)

if (( CURRENT >= 3 )) {
	case ${words[2]} in 
		eval)  _arguments -s $arguments_eval ;;
		rm)    _arguments -s $arguments_rm ;;
		save)  _arguments -s $arguments_save ;;
	esac
} elif [[ -r /tmp/envstore-$UID ]] {
	_arguments -s $arguments_action
} else {
	_arguments -s $arguments_action_nofile
}

while [[ -n $state ]]; do
	lstate=$state
	state=''
	case $lstate in
		param)
			_parameters -g '(scalar|integer)*export'
		;;
		saved_param)
			_wanted parameter expl 'saved parameter' \
			compadd $(envstore eval -e | cut -d ' ' -f 2 | cut -d '=' -f 1)
		;;
	esac
done