1 | /*
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2 | * Licensed to Cloudkick, Inc ('Cloudkick') under one or more
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3 | * contributor license agreements. See the NOTICE file distributed with
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4 | * this work for additional information regarding copyright ownership.
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5 | * Cloudkick licenses this file to You under the Apache License, Version 2.0
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6 | * (the "License"); you may not use this file except in compliance with
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7 | * the License. You may obtain a copy of the License at
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8 | *
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9 | * http://www.apache.org/licenses/LICENSE-2.0
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10 | *
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11 | * Unless required by applicable law or agreed to in writing, software
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12 | * distributed under the License is distributed on an "AS IS" BASIS,
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13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 | * See the License for the specific language governing permissions and
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15 | * limitations under the License.
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16 | */
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17 |
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18 | function getSnapshot(scope) {
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19 | var snapshot = {};
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20 |
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21 | for (var item in scope) {
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22 | snapshot[item] = true;
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23 | }
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24 |
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25 | return snapshot;
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26 | }
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27 |
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28 | function getDifferences(scopeSnapshot1, scopeSnapshot2) {
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29 | var diff = [];
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30 |
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31 | for (var item in scopeSnapshot2) {
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32 | if (scopeSnapshot1[item] === undefined) {
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33 | diff.push(item);
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34 | }
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35 | }
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36 |
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37 | return diff;
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38 | }
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39 |
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40 | exports.getSnapshot = getSnapshot;
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41 | exports.getDifferences = getDifferences;
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