Function makeLocalRubyEnv

packages/ruby/src/install-ruby.ts:71–107

({
  major,
  minor,
  rubyPath,
  gemPath,
}: {
  major: number;
  minor: number;
  rubyPath: string;
  gemPath: string;
})

}

function makeLocalRubyEnv({
  major,
  minor,
  rubyPath,
  gemPath,
}: {
  major: number;
  minor: number;
  rubyPath: string;
  gemPath: string;
}) {
  const gemHome = join(tmpdir(), `vercel-ruby-${major}${minor}-${process.pid}`);

  const matchedOption = allOptions.find(
    o => o.major === major && o.minor === minor && o.state !== 'discontinued'
  );

  if (!matchedOption) {
    throw new NowBuildError({
      code: 'RUBY_INVALID_VERSION',
      link: 'http://vercel.link/ruby-version',
      message: `Local Ruby ${major}.${minor} does not match any supported Vercel runtime. Supported: ${allOptions
        .filter(o => o.state !== 'discontinued')
        .map(o => `${o.major}.${o.minor}`)
        .join(', ')}`,
    });
  }

  return {
    major,
    gemHome,
    runtime: matchedOption.runtime,
    rubyPath,
    gemPath,
    vendorPath: `vendor/bundle/ruby/${major}.${minor}.0`,
  };
}

function getRubyPath(meta: Meta, gemfileContents: string) {
  let selection: RubyVersion | null = null;