Function createLineHandler

scripts/dev.mjs:177–187

(handler)

});

function createLineHandler(handler) {
  let buffer = '';
  return (data) => {
    const text = buffer + data.toString('utf8');
    const lines = text.split('\n');
    buffer = lines.pop();
    lines.forEach((line) => {
      if (line) handler(line);
    });
  };
}

child.stdout.on('data', createLineHandler(stdOutLineHandler));
child.stderr.on('data', createLineHandler(stdOutLineHandler));