ember-cli-update/src/get-default-blueprint-name-override.js

Update Ember CLI projects

'use strict';

const fs = require('fs-extra');
const path = require('path');
const pacote = require('pacote');

/**
 * Run npm view to get the package.json and parse it to check if it contains property
 * to override the default blueprint name
 *
 * @param {string} packageNameOrPath - Name of package i.e. ember-cli-package-name or path to a local package
 * @param {string} cwd - Default to the process's CWD. Parent functions can override
 * @returns {Promise<Array<string>>}
 */
module.exports = async function getBlueprintNameOverride(packageNameOrPath, cwd = process.cwd()) {
  let localPackageJsonPath = path.join(path.resolve(cwd, packageNameOrPath), 'package.json');
  let packageJson;

  if (await fs.pathExists(localPackageJsonPath)) {
    packageJson = JSON.parse(await fs.readFile(localPackageJsonPath));
  } else {
    try {
      packageJson = await pacote.manifest(packageNameOrPath, { fullMetadata: true });
    } catch (err) {
      if (err.statusCode !== 404) {
        throw err;
      }

      packageJson = {};
    }
  }

  return packageJson['ember-addon']?.defaultBlueprint ?? null;
};