Grails Bash completion (tested on OSX, Grails 1.2)

Grails Bash completion (tested on OSX, Grails 1.2)

#export GRAILS_VERSION="$(ls -lhr $HOME/.grails | egrep -i '1\.' | head -1 | gawk '{print $9 }')"
export GRAILS_VERSION=`cat $GRAILS_HOME/build.properties | grep "^grails.version=" | awk -F= '{ print $2 }' | tr -d '\r' | tr -d '\n'`

_get_domain_classes(){
	find ./grails-app/domain -iname *.groovy 2> /dev/null | tr \\n ' ' | sed 's/\.groovy//g' | sed 's/\.\/grails-app\/domain\///g' | tr '/' \.
}

_get_tests(){
	find ./test -iname *.groovy 2> /dev/null | sed 's/\.\/test\/integration\///g' | sed 's/\Tests.groovy//g' | tr '/' \.
}

_get_plugins(){
	# plugin lists are placed at different locations for different Grails versions
	find $HOME/.grails/$GRAILS_VERSION -name "plugins-list*.xml" -exec cat {} \; 2> /dev/null | grep \<plugin | awk -F"name=" '{print $2}' | sed 's/\"//g' | sed 's/\/\{0,1\}\>//g'
}

_get_scripts(){
	for D in $SCRIPT_DIRS; do
		if [ -d $D ]
			then ls -1 $D/*.groovy 2> /dev/null | sed -E 's/(.*)\/(.*)\.groovy/\2/' | sed -E 's/([A-Z])/-\1/g' | sed -E 's/^-//' | tr "[:upper:]" "[:lower:]"
		fi
	done | sort | uniq | grep -vE "^_"
}

_grails_comp(){
	local cur prev opts base
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	if [ -r ./grails-app ]; then
		local projectName=`cat ./application.properties | grep "^app.name=" | awk -F= '{ print $2 }' | tr -d '\r' | tr -d '\n'`
		SCRIPT_DIRS="$GRAILS_HOME/scripts ./scripts ~/.grails/scripts"
		if [ -d plugins ]
			then for PLUGIN_DIR in $(ls -d plugins/*/scripts 2> /dev/null); do
			SCRIPT_DIRS="$SCRIPT_DIRS $PLUGIN_DIR"
			done
		fi
		# get plugin scripts from project specific plugin directory under ~/.grails
		if [ -d $HOME/.grails/$GRAILS_VERSION/projects/$projectName/plugins ]
			then for PLUGIN_DIR in $(ls -d $HOME/.grails/$GRAILS_VERSION/projects/$projectName/plugins/*/scripts 2> /dev/null); do
			SCRIPT_DIRS="$SCRIPT_DIRS $PLUGIN_DIR"
			done
		fi
 
		opts=$(_get_scripts)
	
		case "${prev}" in
			generate-all)
				local classes=$(_get_domain_classes)
				COMPREPLY=( $(compgen -W "${classes}" -- ${cur}) )
				return 0
				;;
			generate-views)
				local classes=$(_get_domain_classes)
				COMPREPLY=( $(compgen -W "${classes}" -- ${cur}) )
				return 0
				;;
			generate-controller)
				local classes=$(_get_domain_classes)
				COMPREPLY=( $(compgen -W "${classes}" -- ${cur}) )
				return 0
				;;
			test-app)
				local test_classes=$(_get_tests)
				COMPREPLY=( $(compgen -W "${test_classes}" -- ${cur}) )
				return 0
				;;
			install-plugin)
				local plugins=$(_get_plugins)
				COMPREPLY=( $(compgen -W "${plugins}" -- ${cur}) )
				return 0
				;;
			package-plugin)
				COMPREPLY=( $(compgen -f) )
				return 0
				;;
			plugin-info)
				local plugins=$(opts)
				COMPREPLY=( $(compgen -W "${plugins}" -- ${cur}) )
				return 0
				;;
			help)
				local opts=$(_get_scripts)
				COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
				return 0
				;;
			*)
			;;
		esac
	
		if [[ "${opts}" =~ "${prev}" ]]; then
			COMPREPLY=( $(compgen -f) )
			return 0
		fi
	
		COMPREPLY=($(compgen -W "${opts}" -- ${cur})) 
		return 0
	else
		opts="create-app create-plugin help list-plugins package-plugin plugin-info set-proxy"
		case "${prev}" in
			create-app)
				COMPREPLY=( $(compgen -f) )
				return 0
				;;
			create-plugin)
				COMPREPLY=( $(compgen -f) )
				return 0
				;;
			package-plugin)
				COMPREPLY=( $(compgen -f) )
				return 0
				;;
			plugin-info)
				local plugins=$(_get_plugins)
				COMPREPLY=( $(compgen -W "${plugins}" -- ${cur}) )
				return 0
				;;
			*)
				;;
		esac
		COMPREPLY=($(compgen -W "${opts}" -- ${cur})) 
		return 0
	fi
}
 
complete -F _grails_comp grails