@zkochan/pnpm/cached_node_modules/superstatic/lib/loaders/config-file.js

A fast implementation of npm install

/**
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Use of this source code is governed by a BSD-style
 * license that can be found in the LICENSE file or at
 * https://github.com/firebase/superstatic/blob/master/LICENSE
 */
'use strict';

var fs = require('fs');

var _ = require('lodash');
var join = require('join-path');
var path = require('path');

var CONFIG_FILE = ['superstatic.json', 'firebase.json'];

module.exports = function(filename) {
  if (_.isFunction(filename)) { return filename; }

  filename = filename || CONFIG_FILE;

  var configObject = {};
  var config = {};

  // From custom config data passed in
  try {
    configObject = JSON.parse(filename);
  } catch (e) {
    if (_.isPlainObject(filename)) {
      configObject = filename;
      filename = CONFIG_FILE;
    }
  }

  if (_.isArray(filename)) {
    filename = _.find(filename, function(name) {
      return fs.existsSync(join(process.cwd(), name));
    });
  }

  // Set back to default config file if stringified object is
  // given as config. With this, we override values in the config file
  if (_.isPlainObject(filename)) {
    filename = CONFIG_FILE;
  }


  // A file name or array of file names
  if (_.isString(filename) && _.endsWith(filename, 'json')) {
    try {
      config = JSON.parse(fs.readFileSync(path.resolve(filename)));
    } catch (e) {
      // do nothing
    }
  }

  // Passing an object as the config value merges
  // the config data
  return _.assign(config, configObject);
};