var childProcess = require('child_process');

export default () => {
  // https://stackoverflow.com/a/71162041/3814663
  const commitDate = childProcess.execSync('git log -1 --format=%cI').toString().trimEnd();
  const commitHash = childProcess.execSync('git rev-parse HEAD').toString().trimEnd();
  const fileDates = childProcess.execSync(`find . -iname '*.geojson' -not -path './dist/*' -exec ls -lh {} +`).toString().trimEnd();
  process.env.VITE_GIT_COMMIT_DATE = commitDate;
  process.env.VITE_GIT_COMMIT_HASH = commitHash;
  process.env.VITE_FILE_DATES = fileDates;

  return {
    build: {
      sourcemap: true,
      target: 'es2022',
    }
  }
}