Function assertFileExists

tools/patch/patch-target.js:8–11

(filePath)

const { ensureMarker } = require("../lib/patch");

function assertFileExists(filePath) {
  if (!fs.existsSync(filePath)) throw new Error(`missing file: ${filePath}`);
  return filePath;
}

function loadPatchText(filePath, { marker } = {}) {
  const target = assertFileExists(filePath);