adds npm files :oops:

Author: Alexander Ryzhikov

lib/index.js

@@ -0,0 +1,162 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _stringify = require('babel-runtime/core-js/json/stringify');
+
+var _stringify2 = _interopRequireDefault(_stringify);
+
+var _keys = require('babel-runtime/core-js/object/keys');
+
+var _keys2 = _interopRequireDefault(_keys);
+
+var _postcss = require('postcss');
+
+var _postcss2 = _interopRequireDefault(_postcss);
+
+var _postcssJs = require('postcss-js');
+
+var _postcssJs2 = _interopRequireDefault(_postcssJs);
+
+var _postcssCssnext = require('postcss-cssnext');
+
+var _postcssCssnext2 = _interopRequireDefault(_postcssCssnext);
+
+var _postcssImport = require('postcss-import');
+
+var _postcssImport2 = _interopRequireDefault(_postcssImport);
+
+var _compose = require('lodash/fp/compose');
+
+var _compose2 = _interopRequireDefault(_compose);
+
+var _get = require('lodash/fp/get');
+
+var _get2 = _interopRequireDefault(_get);
+
+var _cond = require('lodash/fp/cond');
+
+var _cond2 = _interopRequireDefault(_cond);
+
+var _lowerFirst = require('lodash/lowerFirst');
+
+var _lowerFirst2 = _interopRequireDefault(_lowerFirst);
+
+var _loaderUtils = require('loader-utils');
+
+var _loaderUtils2 = _interopRequireDefault(_loaderUtils);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var isDev = function isDev() {
+  return process.env.NODE_ENV === 'development';
+};
+var isProd = function isProd() {
+  return !isDev();
+};
+
+var transform = function transform(data) {
+  if (!data) {
+    return {};
+  }
+  return (0, _keys2.default)(data).reduce(function (acc, k) {
+    var v = data[k];
+
+    k = k.replace(/^-+/, ''); // strips '-'
+    k = (0, _lowerFirst2.default)(k);
+    acc[k] = v.endsWith('px') ? parseInt(v, 10) : v;
+    return acc;
+  }, {});
+};
+
+var toProdExport = function toProdExport(code) {
+  return 'export default ' + code;
+};
+var toDevExport = function toDevExport(code) {
+  return 'let config = ' + code + ';\nif (typeof global.Proxy !== \'undefined\') {\n    config = new Proxy(config, {\n        get(target, key) {\n            if (key !== \'__esModule\' && !target[key]) {\n                console.error(`No variable found, check variable key: ["${key.toString()}"]`);\n            }\n    \n            return target[key];\n        },\n        \n        set(target, key) {\n            throw new Error(\'Config variables are immutable \' + key);\n        }\n    });\n}\nexport default config';
+};
+var toES5Export = function toES5Export(code) {
+  return 'module.exports = ' + code;
+};
+
+var toExport = (0, _cond2.default)([[isDev, toDevExport], [isProd, toProdExport]]);
+
+var toString = function toString(data) {
+  return '' + (0, _stringify2.default)(data, null, '\t');
+};
+var toData = (0, _compose2.default)(transform, (0, _get2.default)(':root'));
+var toConfig = (0, _compose2.default)(toExport, toString, toData);
+var toES5Config = (0, _compose2.default)(toES5Export, toString, toData);
+
+var getPostcss = function getPostcss(async) {
+  return (0, _postcss2.default)().use((0, _postcssImport2.default)({ async: async })).use((0, _postcssCssnext2.default)({
+    features: {
+      customProperties: { preserve: 'computed' }
+    }
+  }));
+};
+
+var objectify = function objectify(root, filepath) {
+  // removes imported rules, so we have only computed output
+  root.walkRules(function (r) {
+    if (r.source.input.file !== filepath) {
+      r.remove();
+    }
+  });
+  return _postcssJs2.default.objectify(root);
+};
+
+var loader = function loader(source) {
+  var _this = this;
+
+  if (this.cacheable) {
+    this.cacheable();
+  }
+
+  var options = _loaderUtils2.default.parseQuery(this.query);
+  var _done = this.async();
+
+  var transformToConfig = options.es5 ? toES5Config : toConfig;
+  var end = function end(err) {
+    var data = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    var map = arguments[2];
+
+    if (err) {
+      _done(err);
+    }
+    return _done(null, transformToConfig(data), map);
+  };
+
+  var emitWarnings = function emitWarnings(result) {
+    return result;
+  };
+
+  var onError = function onError(error) {
+    if (error.name === 'CssSyntaxError') {
+      _this.emitError(error.message + error.showSourceCode());
+      end();
+    } else {
+      end(error);
+    }
+  };
+
+  getPostcss(true).process(source, {
+    from: this.resourcePath
+  }).then(emitWarnings).then(function (result) {
+    return end(null, objectify(result.root, _this.resourcePath), result.map);
+  }).catch(onError);
+};
+
+loader.sync = function sync(source, filepath) {
+  var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+
+  var transformToConfig = options.es5 ? toES5Config : toConfig;
+  var root = getPostcss(false).process(source, { from: filepath }).root;
+
+  return transformToConfig(objectify(root, filepath));
+};
+
+exports.default = loader;
+module.exports = exports['default'];