Hardcode version in update script

Author: ldionne

third-party/update_boost_math.sh

@@ -3,33 +3,27 @@
 set -e # stop at the first error
 
 SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &> /dev/null && pwd)
+VERSION="1.89.0"
 
-echo "This script deletes ${SCRIPT_DIR}/boost-math and re-downloads it from the standalone Boost.Math release."
+echo "This script deletes ${SCRIPT_DIR}/boost-math and re-downloads it from the standalone Boost.Math release version ${VERSION}."
 echo "It then subsets it so it only contains the parts that are used in libc++."
 echo
-read -p "To continue, please enter the version you wish to download (e.g. 1.89.0), or Ctrl+C to cancel: " version
-
-# Boost versions are always 1.xx.yy so far, use this to validate.
-# That will probably have to be updated at some point.
-if [[ "${version}" != "1."* ]]; then
-    echo "Invalid version '${version}' provided, was expecting 1.XX.YY"
-    exit 1
-fi
+read -p "Press a key to continue, or Ctrl+C to cancel"
 
 echo "****************************************"
-echo "Downloading Boost.Math ${version}"
+echo "Downloading Boost.Math ${VERSION}"
 echo "****************************************"
-BOOST_URL="https://github.com/boostorg/math/archive/refs/tags/boost-${version}.tar.gz"
+BOOST_URL="https://github.com/boostorg/math/archive/refs/tags/boost-${VERSION}.tar.gz"
 function cleanup_tarball() {
-    rm ${SCRIPT_DIR}/boost-math-${version}.tar.gz
+    rm ${SCRIPT_DIR}/boost-math-${VERSION}.tar.gz
 }
 trap cleanup_tarball EXIT
-wget "${BOOST_URL}" -O ${SCRIPT_DIR}/boost-math-${version}.tar.gz
+wget "${BOOST_URL}" -O ${SCRIPT_DIR}/boost-math-${VERSION}.tar.gz
 rm -rf ${SCRIPT_DIR}/boost-math
 mkdir ${SCRIPT_DIR}/boost-math
-tar -x --file ${SCRIPT_DIR}/boost-math-${version}.tar.gz -C ${SCRIPT_DIR}/boost-math --strip-components=1
+tar -x --file ${SCRIPT_DIR}/boost-math-${VERSION}.tar.gz -C ${SCRIPT_DIR}/boost-math --strip-components=1
 
 echo "****************************************"
-echo "Subsetting Boost.Math ${version}"
+echo "Subsetting Boost.Math ${VERSION}"
 echo "****************************************"
 rm -rf ${SCRIPT_DIR}/boost-math/{.circleci,.drone,.github,build,config,doc,example,meta,reporting,test,tools}