react-svg-core/lib/svgo.js

Core for react-svg-loader

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.validateAndFix = validateAndFix;

var _lodash = _interopRequireDefault(require("lodash.isplainobject"));

var _lodash2 = _interopRequireDefault(require("lodash.clonedeep"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// validates svgo opts
// to contain minimal set of plugins that will strip some stuff
// for the babylon JSX parser to work
const essentialPlugins = ["removeDoctype", "removeComments", "removeStyleElement"];

function validateAndFix(opts = {}) {
  if (!(0, _lodash.default)(opts)) throw new Error("Expected options.svgo to be Object.");
  let cleanOpts = (0, _lodash2.default)(opts);
  if (cleanOpts.plugins === void 0) cleanOpts.plugins = [];
  if (!Array.isArray(cleanOpts.plugins)) throw new Error("Expected options.svgo.plugins to be an array");

  if (cleanOpts.plugins.length === 0) {
    cleanOpts.plugins = [...essentialPlugins].map(p => ({
      [p]: true
    }));
  }

  const state = new Map(); // mark all essential plugins as disabled

  for (const p of essentialPlugins) {
    state.set(p, false);
  } // parse through input plugins and mark enabled ones


  for (const plugin of cleanOpts.plugins) {
    if ((0, _lodash.default)(plugin)) {
      for (const pluginName of Object.keys(plugin)) {
        if (essentialPlugins.indexOf(pluginName) > -1) {
          // enable the plugin in-place if it's an essential plugin
          // $FlowFixMe: suppressing until refactor (`plugin` is a sealed obj)
          plugin[pluginName] = true;
          state.set(pluginName, true);
        }
      }
    } else if (typeof plugin === "string") {
      state.set(plugin, true);
    } else {
      throw new TypeError("Expected SVGO plugin to be of type String or Object. Got " + typeof plugin);
    }
  } // add missing plugins


  for (const p of essentialPlugins) {
    if (!state.get(p)) {
      cleanOpts.plugins.push(p);
    }
  } // convert strings to objects to match the form svgo accepts


  for (let i = 0; i < cleanOpts.plugins.length; i++) {
    if (typeof cleanOpts.plugins[i] === "string") {
      cleanOpts.plugins[i] = {
        [cleanOpts.plugins[i]]: true
      };
    }
  }

  return cleanOpts;
}