CMake: create build dir, configure and build

cmakeFirstBuild.sh

#!/usr/bin/env bash

build_type_arg=${1:-release}
build_type_lower=${build_type_arg,,}
if ! [[ "$build_type_lower" =~ ^(debug|release|relwithdebinfo|minsizerel)$ ]]; then
    echo "invalid build type specified"
    exit 1;
fi

build_dir="cmake-build-${build_type_lower}"
mkdir build_dir
cmake -S . -B build_dir -DCMAKE_BUILD_TYPE=$build_type_arg
cmake --build $build_dir -- -j${nproc}