WIP - add extractor, generate snippet_data

node_modules/webpack-merge/lib/index.js

@@ -0,0 +1,157 @@
+'use strict';
+
+var _values2 = require('lodash/values');
+
+var _values3 = _interopRequireDefault(_values2);
+
+var _unionWith2 = require('lodash/unionWith');
+
+var _unionWith3 = _interopRequireDefault(_unionWith2);
+
+var _mergeWith2 = require('lodash/mergeWith');
+
+var _mergeWith3 = _interopRequireDefault(_mergeWith2);
+
+var _differenceWith2 = require('lodash/differenceWith');
+
+var _differenceWith3 = _interopRequireDefault(_differenceWith2);
+
+var _joinArrays = require('./join-arrays');
+
+var _joinArrays2 = _interopRequireDefault(_joinArrays);
+
+var _joinArraysSmart = require('./join-arrays-smart');
+
+var _unique = require('./unique');
+
+var _unique2 = _interopRequireDefault(_unique);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
+
+function merge() {
+  for (var _len = arguments.length, sources = Array(_len), _key = 0; _key < _len; _key++) {
+    sources[_key] = arguments[_key];
+  }
+
+  // This supports
+  // merge([<object>] | ...<object>)
+  // merge({ customizeArray: <fn>, customizeObject: <fn>})([<object>] | ...<object>)
+  // where fn = (a, b, key)
+  if (sources.length === 1) {
+    if (Array.isArray(sources[0])) {
+      return _mergeWith3.default.apply(undefined, [{}].concat(_toConsumableArray(sources[0]), [(0, _joinArrays2.default)(sources[0])]));
+    }
+
+    if (sources[0].customizeArray || sources[0].customizeObject) {
+      return function () {
+        for (var _len2 = arguments.length, structures = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+          structures[_key2] = arguments[_key2];
+        }
+
+        if (Array.isArray(structures[0])) {
+          return _mergeWith3.default.apply(undefined, [{}].concat(_toConsumableArray(structures[0]), [(0, _joinArrays2.default)(sources[0])]));
+        }
+
+        return _mergeWith3.default.apply(undefined, [{}].concat(structures, [(0, _joinArrays2.default)(sources[0])]));
+      };
+    }
+
+    return sources[0];
+  }
+
+  return _mergeWith3.default.apply(undefined, [{}].concat(sources, [(0, _joinArrays2.default)()]));
+}
+
+var mergeSmart = merge({
+  customizeArray: function customizeArray(a, b, key) {
+    if (isRule(key.split('.').slice(-1)[0])) {
+      return (0, _unionWith3.default)(a, b, _joinArraysSmart.uniteRules.bind(null, {}, key));
+    }
+
+    return null;
+  }
+});
+
+var mergeMultiple = function mergeMultiple() {
+  for (var _len3 = arguments.length, sources = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+    sources[_key3] = arguments[_key3];
+  }
+
+  return (0, _values3.default)(merge(sources));
+};
+
+// rules: { <field>: <'append'|'prepend'|'replace'> }
+// All default to append but you can override here
+var mergeStrategy = function mergeStrategy() {
+  var rules = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+  return merge({
+    customizeArray: _customizeArray(rules),
+    customizeObject: customizeObject(rules)
+  });
+};
+var mergeSmartStrategy = function mergeSmartStrategy() {
+  var rules = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+  return merge({
+    customizeArray: function customizeArray(a, b, key) {
+      var topKey = key.split('.').slice(-1)[0];
+
+      if (isRule(topKey)) {
+        switch (rules[key]) {
+          case 'prepend':
+            return [].concat(_toConsumableArray((0, _differenceWith3.default)(b, a, function (newRule, seenRule) {
+              return (0, _joinArraysSmart.uniteRules)(rules, key, newRule, seenRule, 'prepend');
+            })), _toConsumableArray(a));
+          case 'replace':
+            return b;
+          default:
+            // append
+            return (0, _unionWith3.default)(a, b, _joinArraysSmart.uniteRules.bind(null, rules, key));
+        }
+      }
+
+      return _customizeArray(rules)(a, b, key);
+    },
+    customizeObject: customizeObject(rules)
+  });
+};
+
+function _customizeArray(rules) {
+  return function (a, b, key) {
+    switch (rules[key]) {
+      case 'prepend':
+        return [].concat(_toConsumableArray(b), _toConsumableArray(a));
+      case 'replace':
+        return b;
+      default:
+        // append
+        return false;
+    }
+  };
+}
+
+function customizeObject(rules) {
+  return function (a, b, key) {
+    switch (rules[key]) {
+      case 'prepend':
+        return (0, _mergeWith3.default)({}, b, a, (0, _joinArrays2.default)());
+      case 'replace':
+        return b;
+      default:
+        // append
+        return false;
+    }
+  };
+}
+
+function isRule(key) {
+  return ['preLoaders', 'loaders', 'postLoaders', 'rules'].indexOf(key) >= 0;
+}
+
+module.exports = merge;
+module.exports.multiple = mergeMultiple;
+module.exports.smart = mergeSmart;
+module.exports.strategy = mergeStrategy;
+module.exports.smartStrategy = mergeSmartStrategy;
+module.exports.unique = _unique2.default;