Function splitLines

src/patch/create.ts:633–644

* Split `text` into an array of lines, including the trailing newline character (where present)

(text: string)

 * Split `text` into an array of lines, including the trailing newline character (where present)
 */
function splitLines(text: string): string[] {
  const hasTrailingNl = text.endsWith('\n');
  const result = text.split('\n').map(line => line + '\n');
  if (hasTrailingNl) {
    result.pop();
  } else {
    result.push(
      (result.pop() as string).slice(0, -1)
    );
  }
  return result;
}