#!/bin/bash
set -euo pipefail

VERSION=3240000

fetch_if_needed() {
  if [ ! -e sqlite ]; then
    curl --fail "https://sqlite.org/2018/sqlite-autoconf-${VERSION}.tar.gz" > sqlite.tar.gz
    tar xf sqlite.tar.gz
    rm sqlite.tar.gz
    mv sqlite-autoconf-${VERSION} sqlite
  fi
}

build() {
  cd sqlite
  ./configure --enable-readline

  if [ ! -v PREBUILT ]; then
    make -j$(nproc)
  fi
}

main() {
  here=$(dirname "${BASH_SOURCE[0]}")
  here=$(readlink -f "$here")
  cd "$here"

  fetch_if_needed
  build
}

main "$@"