Method getNodeVersion

ci/nodeEngineCheck.mjs:76–110

* Extracts and returns the node engine versions of the given package.json * files. * @param {Object} config * @param {String[]} config.files The package.json files. * @param {Boolean} config.clean Is true if packages with undefined node versions * should be removed from the results.

({ files, ignoredFilePaths = [], clean = false })

   * @returns {Object[]} A list of results.
   */
  async getNodeVersion({ files, ignoredFilePaths = [], clean = false }) {

    // Declare response
    let response = [];

    // For each file
    for (const file of files) {
      const shouldFileBeIgnored = ignoredFilePaths.find((path) => path.test(file)) !== undefined;

      if (shouldFileBeIgnored) {
        continue;
      }

      try {
        // Get node version
        const contentString = await fs.readFile(file, 'utf-8');
        const contentJson = JSON.parse(contentString);
        const version = ((contentJson || {}).engines || {}).node;

        // Add response
        response.push({
          file: file,
          nodeVersion: version
        });
      } catch (err) {
        throw `Failed to parse package at ${file} with error ${err}`;
      }
    }

    // If results should be cleaned by removing undefined node versions
    if (clean) {
      response = response.filter(r => r.nodeVersion !== undefined);
    }
    return response;
  }

  /**
   * Returns the highest semver definition that satisfies all versions