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#!/bin/bash
set -ex
hide_output() {
set +x
on_err="
echo ERROR: An error was encountered with the build.
cat /tmp/cmake_build.log
exit 1
"
trap "$on_err" ERR
bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
PING_LOOP_PID=$!
"$@" &> /tmp/cmake_build.log
trap - ERR
kill $PING_LOOP_PID
rm /tmp/cmake_build.log
set -x
}
# LLVM 12 requires CMake 3.13.4 or higher.
# This script is not necessary for images using Ubuntu 20.04 or newer.
CMAKE=3.13.4
curl -L https://github.com/Kitware/CMake/releases/download/v$CMAKE/cmake-$CMAKE.tar.gz | tar xzf -
mkdir cmake-build
cd cmake-build
hide_output ../cmake-$CMAKE/configure
hide_output make -j$(nproc)
hide_output make install
cd ..
rm -rf cmake-build
rm -rf cmake-$CMAKE
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