install neuron + iv script

#!/bin/sh
echo "IMPORTANT! INSTALL_DIR arg must be an absolute path!"
set -e

SRC_DIR=$1
INSTALL_DIR=$2

if [ ! -e ${INSTALL_DIR}/.install_finished ]
then
    echo 'Neuron was not fully installed in previous build, installing ...'
    mkdir -p ${SRC_DIR}
    cd ${SRC_DIR}
    echo "Downloading IV ..."
    rm -rf iv
	git clone --depth 1 https://github.com/neuronsimulator/iv.git >download.log 2>&1
	cd iv
    echo "Preparing IV ..."
	./build.sh >prepare.log 2>&1
    echo "Configuring IV ..."
    ./configure --prefix=${INSTALL_DIR}/iv >configure.log 2>&1
    echo "Building IV ..."
    make -j4 >make.log 2>&1
    echo "Installing IV ..."
    make -j4 install >install.log 2>&1
	cd ..

  echo "Downloading NEURON ..."
  rm -rf nrn
	git clone --depth 1 https://github.com/neuronsimulator/nrn.git >download.log 2>&1
	cd nrn
    echo "Preparing NEURON ..."
	./build.sh >prepare.log 2>&1
    echo "Configuring NEURON ..."
    ./configure --prefix=${INSTALL_DIR}/nrn --with-iv=${INSTALL_DIR}/iv --with-nrnpython=python --disable-rx3d >configure.log 2>&1
    echo "Building NEURON ..."
    make -j4 >make.log 2>&1
    echo "Installing NEURON ..."
    make -j4 install >install.log 2>&1

    export PATH="${INSTALL_DIR}/nrn/x86_64/bin":${PATH}
    export PYTHONPATH="${INSTALL_DIR}/nrn/lib/python":${PYTHONPATH}

    cd src/nrnpython
    python setup.py install
    cd ../../

    echo "Testing NEURON import ...."
    python -c 'import neuron' >testimport.log 2>&1

    touch -f ${INSTALL_DIR}/.install_finished
    echo "NEURON successfully installed"
else
    echo 'Neuron was successfully installed in previous build, not rebuilding'
fi