How to use find-up - 10 common examples

exports.run = function (basedir) {

  // TODO: change the name to "gagarin" when the meta package is ready
  var packageName = 'gagarin-core';

  utils.stopOnFirstSuccess([
    
    resolve.bind({}, packageName, { basedir: basedir }),
    resolve.bind({}, packageName, { basedir: path.join(basedir, 'tests') }),
    resolve.bind({}, packageName, { basedir: path.join(basedir, 'test')  }),

    utils.promiseAsThunk(findUp.bind({}, 'lib/gagarin.js')),

  ], function (err, pathToGagarin) {

    if (err || !pathToGagarin) {
      console.log(chalk.red('gagarin-cli:'), 'Unable to find local gagarin.');
      if (err) {
        console.log(chalk.red('gagarin-cli:'), err.stack);
      }
      return;
    }

    console.log(chalk.green('gagarin-cli:'),
      'Found local gagarin at: ' + chalk.magenta(pathToGagarin));

    require(pathToGagarin).cli(basedir).catch(function (err) {
      console.log(chalk.red('gagarin-cli:'), err.stack);

const npath = rootPath || '*'
    if (pkgs[npath]) return pkgs[npath]
    const findUp = require('find-up')

    let obj = {}
    try {
      let startDir = rootPath || require('require-main-filename')(parentRequire || require)

      // When called in an environment that lacks require.main.filename, such as a jest test runner,
      // startDir is already process.cwd(), and should not be shortened.
      // Whether or not it is _actually_ a directory (e.g., extensionless bin) is irrelevant, find-up handles it.
      if (!rootPath && path.extname(startDir)) {
        startDir = path.dirname(startDir)
      }

      const pkgJsonPath = findUp.sync('package.json', {
        cwd: startDir
      })
      obj = JSON.parse(fs.readFileSync(pkgJsonPath))
    } catch (noop) {}

    pkgs[npath] = obj || {}
    return pkgs[npath]
  }

/* global process require */

// there seems to be a bug in yarn whereby forwarding arguments with -- like so:
//   $ yarn monorun [...] -- --foo
// results in [...] being stripped away; can workaround with:
//   $ yarn monorun -- [...] -- --foo
// but note that yarn warns about a future behavioral change re: yarn and --

const {dirname} = require('path');
const {spawn} = require('child_process');
const {sync: findUp} = require('find-up');
const minimist = require('minimist');

const monorepoRootPath = dirname(findUp('lerna.json'));

let cliArgs = process.argv.slice(2);

const options = minimist(
  cliArgs,
  {boolean: [
    'include-filtered-dependents',
    'include-filtered-dependencies',
    'no-bail',
    'no-prefix',
    'no-private',
    'no-progress',
    'no-sort',
    'parallel',
    'reject-cycles',
    'stream'

import { readFileSync } from 'fs';
import findUp from 'find-up';

let options;
const pkgPath = findUp.sync('package.json');

// Read compiler options from `package.json`.
if (pkgPath) {
  const pkg = JSON.parse(readFileSync(pkgPath, 'utf8'));
  options = pkg['svelte:compiler'];
}

Plugin.registerCompiler({
  extensions: (options && options.extensions) || [
    'html',
    'svelte'
  ]
}, () => new SvelteCompiler(options));

export async function eventNextPlugins(
  dir: string
): Promise> {
  try {
    const packageJsonPath = await findUp('package.json', { cwd: dir })
    if (!packageJsonPath) {
      return []
    }

    const { dependencies = {}, devDependencies = {} } = require(packageJsonPath)

    const deps = { ...devDependencies, ...dependencies }

    return Object.keys(deps).reduce(
      (events: NextPluginsEvent[], plugin: string): NextPluginsEvent[] => {
        const version = deps[plugin]
        // Don't add deps without a version set
        if (!version) {
          return events
        }

export async function compileWithTruffle(): Promise {
  Loggy.spin(
    __filename,
    'compileWithTruffle',
    `compile-contracts`,
    'Compiling contracts with Truffle, using settings from truffle.js file',
  );
  // Attempt to load global truffle if local was not found
  const truffleBin: string = (await findUp('node_modules/.bin/truffle')) || 'truffle';

  let stdout: string, stderr: string;
  try {
    const args: object = { shell: true };
    ({ stdout, stderr } = await execFile(truffleBin, ['compile', '--all'], args));
  } catch (error) {
    if (error.code === 127) {
      Loggy.fail(
        'compile-contracts',
        'Could not find truffle executable. Please install it by running: npm install truffle',
      );
      ({ stdout, stderr } = error);
      throw error;
    }
  } finally {
    Loggy.succeed(`compile-contracts`);

test('init without an existing package.json will fail', () => {
  mockFindUp.mock.syncFail = true
  mockFindUp.mock.syncReturn = undefined

  const result = parse('init')
  expect(result).toBe(undefined)
  expect(mockReadLine.keyInYN).toHaveBeenCalledTimes(0)
  expect(mockGetLogger.mock.error).toHaveBeenCalledWith(
    expect.stringMatching(/Unable/),
  )

  delete mockFindUp.mock.syncFail
  delete mockReadLine.mock.keyInYNReturn
  delete mockFindUp.mock.syncReturn
})

test('init without an existing package.json will fail', () => {
  mockFindUp.mock.syncFail = true
  mockFindUp.mock.syncReturn = undefined

  const result = parse('init')
  expect(result).toBe(undefined)
  expect(mockReadLine.keyInYN).toHaveBeenCalledTimes(0)
  expect(mockGetLogger.mock.error).toHaveBeenCalledWith(
    expect.stringMatching(/Unable/),
  )

  delete mockFindUp.mock.syncFail
  delete mockReadLine.mock.keyInYNReturn
  delete mockFindUp.mock.syncReturn
})

test('with CLI config', () => {
  mockFindUp.mock.cliReturn = '/path/to/.npsrc'
  mockBinUtils.mock.cliConfig = {
    require: 'ts-node/register',
    config: 'package-scripts.ts',
  }
  const {argv, psConfig} = parse('"build --fast"')
  expect(mockBinUtils.loadConfig).toHaveBeenCalledTimes(1)
  expect(mockBinUtils.loadCLIConfig).toHaveBeenCalledTimes(1)
  expect(psConfig.isMock).toBe(true)
  expect(argv).toEqual(
    expect.objectContaining({
      _: [`\"build --fast\"`],
      require: 'ts-node/register',
      config: 'package-scripts.ts',
    }),
  )

initialize: jest.fn(() => {
      if (mockFindUp.mock.syncFail) {
        return undefined
      }
      return {
        packageScriptsPath: '/path/to/package-scripts.js',
        packageJsonPath: '/path/to/package.json',
      }
    }),
    help: jest.fn(),