8680420c34
* Resolve all npm lint warnings so we don't hide new ones. * Any functionality changes from this change are unintentional and should be fixed. Change-Id: Ief1433bbe7e873999c94ca763f93a443d4234739
79 lines
2.2 KiB
JavaScript
79 lines
2.2 KiB
JavaScript
/**
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License. You may obtain
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* a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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(function() {
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"use strict";
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angular.module('horizon.dashboard.container-infra')
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.factory('horizon.dashboard.container-infra.utils.service',
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utilsService);
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/*
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* @ngdoc factory
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* @name horizon.dashboard.container-infra.utils.service
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*
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* @description
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* A utility service providing helpers for the Magnum UI frontend.
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*/
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function utilsService() {
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return {
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versionCompare: versionCompare
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};
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function versionCompare(v1, v2, options) {
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var lexicographical = options && options.lexicographical;
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var zeroExtend = options && options.zeroExtend;
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var v1parts = v1.split('.');
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var v2parts = v2.split('.');
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// Step 1: Validation
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function isValidPart(x) {
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return (lexicographical ? /^\d+[A-Za-z]*$/ : /^\d+$/).test(x);
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}
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if (!v1parts.every(isValidPart) || !v2parts.every(isValidPart)) {
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return NaN;
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}
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// Step 2: Normalise
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function normaliseParts(parts) {
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if (zeroExtend) {
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while (parts.length < parts.length) { parts.push("0"); }
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}
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if (!lexicographical) {
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parts = parts.map(Number);
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}
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return parts;
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}
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v1parts = normaliseParts(v1parts);
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v2parts = normaliseParts(v2parts);
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// Step 3: Comparison
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for (var i = 0; i < v1parts.length; ++i) {
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if (v2parts.length === i) { return 1; }
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if (v1parts[i] === v2parts[i]) {
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continue;
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}
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if (v1parts[i] > v2parts[i]) {
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return 1;
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}
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return -1;
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}
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if (v1parts.length !== v2parts.length) { return -1; }
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return 0;
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}
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}
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})();
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