#!/bin/sh

set -ex

GMP_VERSION=6.2.1

GMP_TARBALL=gmp-${GMP_VERSION}.tar.bz2
GMP_SIGNATURE=gmp-${GMP_VERSION}.tar.bz2.sig

GMP_DOWNLOAD_TARBALL=https://gmplib.org/download/gmp/${GMP_TARBALL}
GMP_DOWNLOAD_SIGNATURE=https://gmplib.org/download/gmp/${GMP_SIGNATURE}

wget "$GMP_DOWNLOAD_TARBALL"
wget "$GMP_DOWNLOAD_SIGNATURE"
gpg --keyserver keys.gnupg.net --recv-keys 0x28C67298
gpg --verify "$GMP_SIGNATURE" "$GMP_TARBALL"
# Fingerprint is okay
rm "$GMP_SIGNATURE"

bunzip2 "$GMP_TARBALL"
UNCOMPRESSED_TARBALL=${GMP_TARBALL%.bz2}
tar --delete --file="$UNCOMPRESSED_TARBALL" gmp-${GMP_VERSION}/doc
mv ${UNCOMPRESSED_TARBALL} out-${UNCOMPRESSED_TARBALL}
bzip2 out-"$UNCOMPRESSED_TARBALL"
echo "Output tarball is in out-$GMP_TARBALL"