#!/usr/bin/env bash

if [ "$SAGE_LOCAL" = "" ]; then
    echo >&2 "SAGE_LOCAL undefined ... exiting"
    echo >&2 "Maybe run 'sage -sh'?"
    exit 1
fi

cd src/

for patch in ../patches/*.patch; do
    [ -r "$patch" ] || continue  # Skip non-existing or non-readable patches
    patch -p1 <"$patch"
    if [ $? -ne 0 ]; then
        echo >&2 "Error applying '$patch'"
        exit 1
    fi
done

echo "building sympy"
python setup.py build

if [ $? -ne 0 ]; then
    echo >&2 "Error building sympy"
    exit 1
fi

# It is very important that we have SAGE_LOCAL set, otherwise this
# might potentially delete stuff in /lib
echo "Deleting $SAGE_LOCAL/lib/python*/site-packages/sympy*"
rm -rf "$SAGE_LOCAL"/lib/python*/site-packages/sympy*

echo "installing sympy"
python setup.py install

if [ $? -ne 0 ]; then
    echo >&2 "Error installing sympy"
    exit 1
fi
