function makeCaretRange()

in packages/create-react-app/createReactApp.js [858:878]

• 17 lines of code
• 3 McCabe index (conditional complexity)

function makeCaretRange(dependencies, name) {
  const version = dependencies[name];

  if (typeof version === 'undefined') {
    console.error(chalk.red(`Missing ${name} dependency in package.json`));
    process.exit(1);
  }

  let patchedVersion = `^${version}`;

  if (!semver.validRange(patchedVersion)) {
    console.error(
      `Unable to patch ${name} dependency version because version ${chalk.red(
        version
      )} will become invalid ${chalk.red(patchedVersion)}`
    );
    patchedVersion = version;
  }

  dependencies[name] = patchedVersion;
}