Zsh で composer コマンドを補完

_composer

#compdef composer

function __composer_get_command_list() {
	if which composer &> /dev/null && which perl &> /dev/null; then
		composer list --raw | perl -pe 's/:/\\:/g;s/([a-z\\:-]+)(?:\s+(.*))?/$1:$2/ig;'
	fi
}

function __composer_commands() {
	local -a cmds
	cmds=( ${(@f)"$(__composer_get_command_list)"} )
	_describe -t commands "commands" cmds
}

function _composer() {
	local context curcontext=$curcontext state line
	declare -A opt_args
	local ret=1

	_arguments -C \
		'(-h --help)'{-h,--help}'[Display help message]' \
		'1: :__composer_commands' \
		'*:: :->args' \
	&& ret=0

	case $state in
		(args)
			__options \
				'*:files:_files' \
			&& ret=0
			;;
	esac

	return ret
}

_composer "$@"