gvm-glstart.sh

# usage:
# This script must be placed in the ~/.gvm/ext folder

function gvm_glstart {

    ARGS=$@           
    EXECUTABLE="grails"
    
    if [ -f application.properties ]; then                                                                             
        G_VERSION=$( cat application.properties | grep "app.grails.version=" | sed -e "s/^.*=//" | tr -d '\r\n ' )
        echo "Detected Grails ${G_VERSION}"  
    else
        echo "Using current Grails version."
        G_VERSION="current"
    fi
    
    G_VERSION_DIR="${GVM_DIR}/grails/${G_VERSION}"
    
    if [ ! -d ${G_VERSION_DIR} ]; then
        echo "Grails Version ${G_VERSION} is not installed. (${GVM_DIR}/grails/${G_VERSION})"
        echo -n "Do you want to install it now? (Y/n): "
        read INSTALL 
        if [[ -z "${INSTALL}" || "${INSTALL}" == "y" || "${INSTALL}" == "Y" ]]; then
            __gvmtool_install_candidate_version "${EXECUTABLE}" "${G_VERSION}"
            if [ ! -d "${GVM_DIR}/grails/current" ]; then
                echo -n "Do you want to use ${EXECUTABLE} ${G_VERSION} now? (Y/n): "
                read USE
                if [[ -z "${USE}" || "${USE}" == "y" || "${USE}" == "Y" ]]; then
                    __gvmtool_link_candidate_version "${EXECUTABLE}" "${G_VERSION}"
                    echo ""
                    echo Using "${EXECUTABLE}" version "${G_VERSION}"
                fi
            fi
        else
            return 1
        fi
    fi
      
    GRAILS_HOME=${G_VERSION_DIR}
    ${GRAILS_HOME}/bin/${EXECUTABLE} ${ARGS}
    GRAILS_HOME="${GVM_DIR}/grails/current"
}

alias grails="gvm_glstart"