#!/bin/sh

# Constants
PYTHON_VER=2.7

# Arguments
MODULE="$1"

# Checks
if [ -z "$MODULE" ]; then
	echo "Please supply the module name"
	return
fi

# Variables
BASE_PATH="$MODULE"

if ! [ -d "$BASE_PATH" ]; then
	BASE_PATH="$HOME/install/$MODULE"
	if ! [ -d "$BASE_PATH" ]; then
		echo "$BASE_PATH is not a valid directory"
		return
	fi
fi

echo "Entering $BASE_PATH"

# Sub-environment
export PATH=$BASE_PATH/bin:$PATH
export LD_LIBRARY_PATH=$BASE_PATH/lib64:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=$BASE_PATH/lib:$LD_LIBRARY_PATH

export PYTHONPATH=$BASE_PATH/lib/python$PYTHON_VER/site-packages:$PYTHONPATH
export PYTHONPATH=$BASE_PATH/lib/python$PYTHON_VER/dist-packages:$PYTHONPATH
# sitecustomize.py should be used to add any further directories via sys.path (e.g. a local 'gnuradio')

export PKG_CONFIG_PATH=$BASE_PATH/lib/pkgconfig:$PKG_CONFIG_PATH

if [ -e $BASE_PATH/subenv.init ]; then
	echo "Executing initialisation script..."
	. $BASE_PATH/subenv.init
fi

# 'export' is necessary
export SUBENV="$MODULE"

# Start the new session
$SHELL -i

echo "Exiting $BASE_PATH"