Function updateUserPackageJSON

packages/kyt-core/src/actions/setup/packages.js:135–162

(starterPackageJSON, starterKytConfig, paths, kytVersion)

// the user's package.json configuration.

export const updateUserPackageJSON = (starterPackageJSON, starterKytConfig, paths, kytVersion) => {
  let newUserPackageJSON;
  // Create a package.json definition if
  // the user doesn't already have one.
  if (shell.test('-f', paths.userPackageJSONPath)) {
    const userJSON = fs.readFileSync(paths.userPackageJSONPath, 'utf8');
    newUserPackageJSON = JSON.parse(userJSON);
  } else {
    newUserPackageJSON = cloneDeep(fakePackageJson);
    logger.task('Creating a new package.json. You should fill it in.');
  }
  // Clone the package.json so that we have a backup.
  const oldUserPackageJSON = cloneDeep(newUserPackageJSON);

  // Add dependencies from starter-kyts
  const kytPrefVersion =
    kytVersion || checkStarterKytVersion(newUserPackageJSON, starterPackageJSON);
  newUserPackageJSON = updatePackageJSONDependencies(newUserPackageJSON, starterPackageJSON);
  newUserPackageJSON = addKytDependency(newUserPackageJSON, kytPrefVersion);
  newUserPackageJSON = addPackageJsonScripts(
    newUserPackageJSON,
    starterPackageJSON,
    starterKytConfig
  );
  fs.writeFileSync(paths.userPackageJSONPath, JSON.stringify(newUserPackageJSON, null, 2));

  return { oldUserPackageJSON, newUserPackageJSON };
};