cakephp bash completion

cake

###
# @file CakePHP cake console bash completion script
# @author nojimage
# @original tclineks http://bin.cakephp.org/saved/21917
# @license mit

_cake() 
{
    local cur prev opts base
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"

	# for toplevel, find shells
	if [[ ${COMP_CWORD} -eq 1 ]]; then
		shells=`$1 | grep "Available Shells:" -A 50 | awk -F"\]|[\t ]*" '/^ .*? \[/ {for(i=1;i<=NF;i++){ if (!index($i, "\[") && length($i)) print $i}}'`
		COMPREPLY=( $(compgen -W "${shells}" -- ${cur}) )
		return 0
	
	# list available options for bake, just help for others (for now)
	elif [[ ${COMP_CWORD} -eq 2 ]]; then

		case "${prev}" in
			bake)
				opts=`$1 bake help | awk '/^\tbake/ {print $2}'`
				COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
				return 0
				;;
			*)
				COMPREPLY=( $(compgen -W "help" -- ${cur}) )
				return 0
			;;
		esac

	# when we're level three (or more)
	else

		prevprev="${COMP_WORDS[COMP_CWORD-2]}"
		case "${prevprev}" in
			bake)
			case "${prev}" in
				model | controller | view)
					models=`$1 bake ${prev} <&- | awk '/^[0-9]+\./ {print $2}'`
					COMPREPLY=( $(compgen -W "${models}" -- ${cur}) )
					return 0
				;;
				*)
				;;
			esac
			;;
			*)
			;;
		esac

	fi

}
complete -F _cake cake

for CakePHP 1.3