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#!/bin/bash -eux
#
# This script should be called by `cibuildwheel` in the `before-all` stage.
#
# This script will download and untar the Boost C++ source files.
# `${BOOST_VERSION}` should be set as `x.y.z`; the untarred sources can be
# found in the directory `${BOOST_BUILD_DIR}/boost`.
# Both environment variables must have been set.
# Download and untar the Boost C++ source files
# Rename the source directory to `boost`
function download_and_untar_boost
{
major=$(echo "${BOOST_VERSION}" | cut -d. -f1)
minor=$(echo "${BOOST_VERSION}" | cut -d. -f2)
patch=$(echo "${BOOST_VERSION}" | cut -d. -f3)
name="boost"
long_name="${name}_${major}_${minor}_${patch}"
site="https://sourceforge.net"
directory="projects/${name}/files/${name}/${major}.${minor}.${patch}"
file="${long_name}.tar.bz2"
url="${site}/${directory}/${file}"
rm -rf "${BOOST_BUILD_DIR}"
mkdir -p "${BOOST_BUILD_DIR}"
cd "${BOOST_BUILD_DIR}"
curl -L -o - "${url}" | tar -xjf -
mv "${long_name}" "${name}"
}
set -o pipefail
download_and_untar_boost
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