237 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			237 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
 | |
| 
 | |
| Object.defineProperty(exports, "__esModule", {
 | |
|   value: true
 | |
| });
 | |
| exports.uniteEntries = exports.uniteRules = undefined;
 | |
| 
 | |
| var _unionWith2 = require('lodash/unionWith');
 | |
| 
 | |
| var _unionWith3 = _interopRequireDefault(_unionWith2);
 | |
| 
 | |
| var _differenceWith2 = require('lodash/differenceWith');
 | |
| 
 | |
| var _differenceWith3 = _interopRequireDefault(_differenceWith2);
 | |
| 
 | |
| var _mergeWith2 = require('lodash/mergeWith');
 | |
| 
 | |
| var _mergeWith3 = _interopRequireDefault(_mergeWith2);
 | |
| 
 | |
| var _isEqual2 = require('lodash/isEqual');
 | |
| 
 | |
| var _isEqual3 = _interopRequireDefault(_isEqual2);
 | |
| 
 | |
| var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
 | |
| 
 | |
| 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); } }
 | |
| 
 | |
| var isArray = Array.isArray;
 | |
| 
 | |
| function uniteRules(rules, key, newRule, rule) {
 | |
|   if (String(rule.test) !== String(newRule.test) || (newRule.enforce || rule.enforce) && rule.enforce !== newRule.enforce || newRule.include && !isSameValue(rule.include, newRule.include) || newRule.exclude && !isSameValue(rule.exclude, newRule.exclude)) {
 | |
|     return false;
 | |
|   } else if (!rule.test && !rule.include && !rule.exclude && (rule.loader && rule.loader.split('?')[0]) !== (newRule.loader && newRule.loader.split('?')[0])) {
 | |
|     // Don't merge the rule if there isn't any identifying fields and the loaders don't match
 | |
|     return false;
 | |
|   } else if ((rule.include || rule.exclude) && !newRule.include && !newRule.exclude) {
 | |
|     // Don't merge child without include/exclude to parent that has either
 | |
|     return false;
 | |
|   }
 | |
| 
 | |
|   // apply the same logic for oneOf
 | |
|   if (rule.oneOf && newRule.oneOf) {
 | |
|     rule.oneOf = (0, _unionWith3.default)(rule.oneOf, newRule.oneOf, uniteRules.bind(null, {}, 'oneOf'));
 | |
| 
 | |
|     return true;
 | |
|   }
 | |
| 
 | |
|   // newRule.loader should always override use, loaders and oneOf
 | |
|   if (newRule.loader) {
 | |
|     var optionsKey = newRule.options ? 'options' : newRule.query && 'query';
 | |
| 
 | |
|     delete rule.use;
 | |
|     delete rule.loaders;
 | |
|     delete rule.oneOf;
 | |
| 
 | |
|     rule.loader = newRule.loader;
 | |
| 
 | |
|     if (optionsKey) {
 | |
|       rule[optionsKey] = newRule[optionsKey];
 | |
|     }
 | |
|   } else if (newRule.oneOf) {
 | |
|     delete rule.use;
 | |
|     delete rule.loaders;
 | |
|     delete rule.loader;
 | |
| 
 | |
|     rule.oneOf = newRule.oneOf;
 | |
|   } else if ((rule.use || rule.loaders || rule.loader) && (newRule.use || newRule.loaders)) {
 | |
|     var expandEntry = function expandEntry(loader) {
 | |
|       return typeof loader === 'string' ? { loader: loader } : loader;
 | |
|     };
 | |
|     // this is only here to avoid breaking existing tests
 | |
|     var unwrapEntry = function unwrapEntry(entry) {
 | |
|       return !entry.options && !entry.query ? entry.loader : entry;
 | |
|     };
 | |
| 
 | |
|     var entries = void 0;
 | |
|     if (rule.loader) {
 | |
|       var _optionsKey = rule.options ? 'options' : rule.query && 'query';
 | |
|       entries = [{ loader: rule.loader }];
 | |
| 
 | |
|       if (_optionsKey) {
 | |
|         entries[0][_optionsKey] = rule[_optionsKey];
 | |
|       }
 | |
| 
 | |
|       delete rule.loader;
 | |
| 
 | |
|       if (_optionsKey) {
 | |
|         delete rule[_optionsKey];
 | |
|       }
 | |
|     } else {
 | |
|       entries = [].concat(rule.use || rule.loaders).map(expandEntry);
 | |
|     }
 | |
|     var newEntries = [].concat(newRule.use || newRule.loaders).map(expandEntry);
 | |
| 
 | |
|     var loadersKey = rule.use || newRule.use ? 'use' : 'loaders';
 | |
|     var resolvedKey = key + '.' + loadersKey;
 | |
| 
 | |
|     switch (rules[resolvedKey]) {
 | |
|       case 'prepend':
 | |
|         rule[loadersKey] = [].concat(_toConsumableArray((0, _differenceWith3.default)(newEntries, entries, uniteEntries)), _toConsumableArray(entries)).map(unwrapEntry);
 | |
|         break;
 | |
|       case 'replace':
 | |
|         rule[loadersKey] = newRule.use || newRule.loaders;
 | |
|         break;
 | |
|       default:
 | |
|         rule[loadersKey] = combineEntries(newEntries, entries).map(unwrapEntry);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   if (newRule.include) {
 | |
|     rule.include = newRule.include;
 | |
|   }
 | |
| 
 | |
|   if (newRule.exclude) {
 | |
|     rule.exclude = newRule.exclude;
 | |
|   }
 | |
| 
 | |
|   return true;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Check equality of two values using lodash's isEqual
 | |
|  * Arrays need to be sorted for equality checking
 | |
|  * but clone them first so as not to disrupt the sort order in tests
 | |
|  */
 | |
| function isSameValue(a, b) {
 | |
|   var _map = [a, b].map(function (value) {
 | |
|     return isArray(value) ? [].concat(_toConsumableArray(value)).sort() : value;
 | |
|   }),
 | |
|       _map2 = _slicedToArray(_map, 2),
 | |
|       propA = _map2[0],
 | |
|       propB = _map2[1];
 | |
| 
 | |
|   return (0, _isEqual3.default)(propA, propB);
 | |
| }
 | |
| 
 | |
| function areEqualEntries(newEntry, entry) {
 | |
|   var loaderNameRe = /^([^?]+)/ig;
 | |
| 
 | |
|   var _entry$loader$match = entry.loader.match(loaderNameRe),
 | |
|       _entry$loader$match2 = _slicedToArray(_entry$loader$match, 1),
 | |
|       loaderName = _entry$loader$match2[0];
 | |
| 
 | |
|   var _newEntry$loader$matc = newEntry.loader.match(loaderNameRe),
 | |
|       _newEntry$loader$matc2 = _slicedToArray(_newEntry$loader$matc, 1),
 | |
|       newLoaderName = _newEntry$loader$matc2[0];
 | |
| 
 | |
|   return loaderName === newLoaderName;
 | |
| }
 | |
| 
 | |
| function uniteEntries(newEntry, entry) {
 | |
|   if (areEqualEntries(newEntry, entry)) {
 | |
|     // Replace query values with newer ones
 | |
|     (0, _mergeWith3.default)(entry, newEntry);
 | |
|     return true;
 | |
|   }
 | |
|   return false;
 | |
| }
 | |
| 
 | |
| /* Combines entries and newEntries, while respecting the order of loaders in each.
 | |
| 
 | |
| Iterates through new entries. If the new entry also exists in existing entries,
 | |
| we'll put in all of the loaders from existing entries that come before it (in case
 | |
| those are pre-requisites). Any remaining existing entries are added at the end.
 | |
| 
 | |
| Since webpack processes right-to-left, we're working backwards through the arrays
 | |
| */
 | |
| function combineEntries(newEntries, existingEntries) {
 | |
|   var resultSet = [];
 | |
| 
 | |
|   // We're iterating through newEntries, this keeps track of where we are in the existingEntries
 | |
|   var existingEntriesIteratorIndex = existingEntries.length - 1;
 | |
| 
 | |
|   for (var i = newEntries.length - 1; i >= 0; i -= 1) {
 | |
|     var currentEntry = newEntries[i];
 | |
|     var indexInExistingEntries = findLastIndexUsingComparinator(existingEntries, currentEntry, areEqualEntries, existingEntriesIteratorIndex);
 | |
|     var hasEquivalentEntryInExistingEntries = indexInExistingEntries !== -1;
 | |
| 
 | |
|     if (hasEquivalentEntryInExistingEntries) {
 | |
|       // If the same entry exists in existing entries, we should add all of the entries that
 | |
|       // come before to maintain order
 | |
|       for (var j = existingEntriesIteratorIndex; j > indexInExistingEntries; j -= 1) {
 | |
|         var existingEntry = existingEntries[j];
 | |
| 
 | |
|         // If this entry also exists in new entries, we'll add as part of iterating through
 | |
|         // new entries so that if there's a conflict between existing entries and new entries,
 | |
|         // new entries order wins
 | |
|         var hasMatchingEntryInNewEntries = findLastIndexUsingComparinator(newEntries, existingEntry, areEqualEntries, i) !== -1;
 | |
| 
 | |
|         if (!hasMatchingEntryInNewEntries) {
 | |
|           resultSet.unshift(existingEntry);
 | |
|         }
 | |
|         existingEntriesIteratorIndex -= 1;
 | |
|       }
 | |
| 
 | |
|       uniteEntries(currentEntry, existingEntries[existingEntriesIteratorIndex]);
 | |
|       // uniteEntries mutates the second parameter to be a merged version, so that's what's pushed
 | |
|       resultSet.unshift(existingEntries[existingEntriesIteratorIndex]);
 | |
| 
 | |
|       existingEntriesIteratorIndex -= 1;
 | |
|     } else {
 | |
|       var alreadyHasMatchingEntryInResultSet = findLastIndexUsingComparinator(resultSet, currentEntry, areEqualEntries) !== -1;
 | |
| 
 | |
|       if (!alreadyHasMatchingEntryInResultSet) {
 | |
|         resultSet.unshift(currentEntry);
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   // Add remaining existing entries
 | |
|   for (existingEntriesIteratorIndex; existingEntriesIteratorIndex >= 0; existingEntriesIteratorIndex -= 1) {
 | |
| 
 | |
|     var _existingEntry = existingEntries[existingEntriesIteratorIndex];
 | |
|     var _alreadyHasMatchingEntryInResultSet = findLastIndexUsingComparinator(resultSet, _existingEntry, areEqualEntries) !== -1;
 | |
| 
 | |
|     if (!_alreadyHasMatchingEntryInResultSet) {
 | |
|       resultSet.unshift(_existingEntry);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return resultSet;
 | |
| }
 | |
| 
 | |
| function findLastIndexUsingComparinator(entries, entryToFind, comparinator, startingIndex) {
 | |
|   startingIndex = startingIndex || entries.length - 1;
 | |
|   for (var i = startingIndex; i >= 0; i -= 1) {
 | |
|     if (areEqualEntries(entryToFind, entries[i])) {
 | |
|       return i;
 | |
|     }
 | |
|   }
 | |
|   return -1;
 | |
| }
 | |
| 
 | |
| exports.uniteRules = uniteRules;
 | |
| exports.uniteEntries = uniteEntries; |