@kiwicom/eslint-config/runner/verifyPackageTree.js

"use strict";

var fs = require('fs');

var path = require('path');
/**
 * Inspiration: https://github.com/facebook/create-react-app/blob/3495286f8f3835d55cbdedbc881ae481eb0a3c65/packages/react-scripts/scripts/utils/verifyPackageTree.js
 * MIT licenced.
 */


module.exports = function verifyPackageTree() {
  // $FlowAllowDynamicImport
  var ownPackageJson = require('../package.json');

  var depsToCheck = Object.keys(ownPackageJson.dependencies).filter(function (dep) {
    return dep.startsWith('eslint-plugin');
  });
  var expectedVersionsByDep = {};
  depsToCheck.forEach(function (dep) {
    expectedVersionsByDep[dep] = ownPackageJson.dependencies[dep].replace(/^[~^]/, '');
  }); // Verify we don't have other versions up the tree.

  var currentDir = __dirname;

  var _loop2 = function _loop2() {
    var previousDir = currentDir;
    currentDir = path.resolve(currentDir, '..');

    if (currentDir === previousDir) {
      return "break"; // We've reached the root.
    }

    var maybeNodeModules = path.resolve(currentDir, 'node_modules');

    if (!fs.existsSync(maybeNodeModules)) {
      return "continue";
    }

    depsToCheck.forEach(function (dep) {
      var maybeDep = path.resolve(maybeNodeModules, dep);

      if (!fs.existsSync(maybeDep)) {
        return;
      }

      var maybeDepPackageJson = path.resolve(maybeDep, 'package.json');

      if (!fs.existsSync(maybeDepPackageJson)) {
        return;
      }

      var depPackageJson = JSON.parse(fs.readFileSync(maybeDepPackageJson, 'utf8'));
      var expectedVersion = expectedVersionsByDep[dep];

      if (depPackageJson.version !== expectedVersion) {
        console.warn('There might be a problem with the following plugin: %s (used %s but expected %s)', dep, depPackageJson.version, expectedVersion);
      }
    });
  };

  _loop: while (true) {
    var _ret = _loop2();

    switch (_ret) {
      case "break":
        break _loop;

      case "continue":
        continue;
    }
  }
};