set -o errexit -o xtrace

if type apt-get >/dev/null ; then

sudo apt-get install libxml2-dev libxml2-utils libxslt1-dev python-dev \

elif type brew >/dev/null ; then

brew install python libxml2 gnu-sed

if ! echo $PATH | grep -ql /usr/local/bin ; then

echo '/usr/local/bin not found in $PATH, please add it.'

fi

pip install --user --no-allow-insecure --no-allow-external -r requirements.txt

git submodule init

git submodule update