#!/usr/bin/env bash

set -e

# check dependencies
if [ ! "$(command -v python3)" ]; then
	echo "GEF requires Python3 installed."
	exit 1
fi

# Backup gdbinit if any
if [ -f "${HOME}/.gdbinit" ]; then
    mv "${HOME}/.gdbinit" "${HOME}/.gdbinit.old"
fi

tag=$(python3 -c 'import urllib.request as r,json as j; x=j.loads(r.urlopen("https://api.github.com/repos/hugsy/gef/tags").read()); print(x[0]["name"])')
python3 -c "import urllib.request as r; x=r.urlopen('https://github.com/hugsy/gef/raw/${tag}/gef.py').read(); print(x.decode('utf-8'))" > ${HOME}/.gef-${tag}.py

if [ -f "${HOME}/.gef-${tag}.py" ]; then
    echo "source ~/.gef-${tag}.py" > ~/.gdbinit
    exit 0
else
    echo "GEF was not properly downloaded"
    exit 2
fi