Bash macro preventing composer execution with xdebug enabled

.bash_aliases

COMPOSER_PATH=`which composer`
composer() {
    if ! php5query -s cli -m xdebug >/dev/null; then
        $COMPOSER_PATH $@
        return
    fi

    # Re-enable xdebug even after a ctrl-c (SIGINT)
    # and clear the signal handler
    trap 'sudo php5enmod xdebug; trap - INT' INT

    sudo php5dismod -s cli xdebug
    $COMPOSER_PATH $@
    sudo php5enmod -s cli xdebug
}