#!/bin/bash
set -e

if [ -d ~/openssl ]; then
    exit 0
fi

apt-get install -y --no-install-recommends curl

case "${LIBRARY}" in
"libressl")
    URL1="http://ftp3.usa.openbsd.org/pub/OpenBSD/LibreSSL/libressl-${VERSION}.tar.gz"
    URL2="http://ftp.eu.openbsd.org/pub/OpenBSD/LibreSSL/libressl-${VERSION}.tar.gz"
    ;;
"openssl")
    URL1="https://openssl.org/source/openssl-${VERSION}.tar.gz"
    URL2="http://mirrors.ibiblio.org/openssl/source/openssl-${VERSION}.tar.gz"
    ;;
esac

case "${TARGET}" in
"x86_64-unknown-linux-gnu")
    OS_COMPILER=linux-x86_64
    ;;
"i686-unknown-linux-gnu")
    OS_COMPILER=linux-elf
    OS_FLAGS=-m32
    ;;
"arm-unknown-linux-gnueabihf")
    OS_COMPILER=linux-armv4
    export AR=arm-linux-gnueabihf-ar
    export CC=arm-linux-gnueabihf-gcc
    ;;
esac

mkdir -p /tmp/build
cd /tmp/build

OUT=/tmp/openssl.tgz
MAX_REDIRECTS=5
curl -o ${OUT} -L --max-redirs ${MAX_REDIRECTS} ${URL1} \
  || curl -o ${OUT} -L --max-redirs ${MAX_REDIRECTS} ${URL2}

tar --strip-components=1 -xzf ${OUT}

PREFIX=${HOME}/openssl
case "${LIBRARY}" in
"openssl")
    ./Configure --prefix=${PREFIX} ${OS_COMPILER} -fPIC -g ${OS_FLAGS} no-shared
    ;;
"libressl")
    ./configure --prefix=${PREFIX} --disable-shared --with-pic
    ;;
esac

make -j$(nproc)
make install