#!/usr/bin/env bash
# Originates from https://gist.github.com/jorgecarleitao/ab6246c86c936b9c55fd
# first argument of the script is Xapian version (e.g. 1.2.19)
# second argument of the script is core sha256
# second argument of the script is binding sha256
VERSION="$1"
CORE_SHA256="$2"
BINDINGS_SHA256="$3"

# Cleanup env vars for auto discovery mechanism
unset CPATH
unset LIBRARY_PATH
unset CFLAGS
unset LDFLAGS
unset CCFLAGS
unset CXXFLAGS
unset CPPFLAGS

# prepare
rm -rf "$VIRTUAL_ENV/packages"
mkdir -p "$VIRTUAL_ENV/packages" && cd "$VIRTUAL_ENV/packages" || exit 1

CORE=xapian-core-$VERSION
BINDINGS=xapian-bindings-$VERSION

# download
echo "Downloading source..."
curl -O "https://oligarchy.co.uk/xapian/$VERSION/${CORE}.tar.xz" || exit 1

echo "${CORE_SHA256}  ${CORE}.tar.xz" | sha256sum -c - || exit 1

curl -O "https://oligarchy.co.uk/xapian/$VERSION/${BINDINGS}.tar.xz"

echo "${BINDINGS_SHA256}  ${BINDINGS}.tar.xz" | sha256sum -c - || exit 1


# extract
echo "Extracting source..."
tar xf "${CORE}.tar.xz"
tar xf "${BINDINGS}.tar.xz"

# install
echo "Installing Xapian-core..."
cd "$VIRTUAL_ENV/packages/${CORE}" || exit 1
./configure --prefix="$VIRTUAL_ENV" && make -j"$(nproc)" && make install

PYTHON_FLAG=--with-python3

echo "Installing Xapian-bindings..."
cd "$VIRTUAL_ENV/packages/${BINDINGS}" || exit 1
./configure --prefix="$VIRTUAL_ENV" $PYTHON_FLAG XAPIAN_CONFIG="$VIRTUAL_ENV/bin/xapian-config" && make -j"$(nproc)" && make install

# clean
rm -rf "$VIRTUAL_ENV/packages"

# test
python -c "import xapian"