/*! *****************************************************************************
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Copyright (c) Microsoft Corporation. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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this file except in compliance with the License. You may obtain a copy of the
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License at http://www.apache.org/licenses/LICENSE-2.0
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THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
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WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
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MERCHANTABLITY OR NON-INFRINGEMENT.
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See the Apache Version 2.0 License for specific language governing permissions
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and limitations under the License.
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***************************************************************************** */
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"use strict";
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var fs = require("fs");
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function pipeExists(name) {
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return fs.existsSync(name);
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}
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function createCancellationToken(args) {
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var cancellationPipeName;
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for (var i = 0; i < args.length - 1; i++) {
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if (args[i] === "--cancellationPipeName") {
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cancellationPipeName = args[i + 1];
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break;
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}
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}
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if (!cancellationPipeName) {
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return {
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isCancellationRequested: function () { return false; },
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setRequest: function (_requestId) { return void 0; },
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resetRequest: function (_requestId) { return void 0; }
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};
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}
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if (cancellationPipeName.charAt(cancellationPipeName.length - 1) === "*") {
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var namePrefix_1 = cancellationPipeName.slice(0, -1);
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if (namePrefix_1.length === 0 || namePrefix_1.indexOf("*") >= 0) {
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throw new Error("Invalid name for template cancellation pipe: it should have length greater than 2 characters and contain only one '*'.");
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}
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var perRequestPipeName_1;
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var currentRequestId_1;
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return {
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isCancellationRequested: function () { return perRequestPipeName_1 !== undefined && pipeExists(perRequestPipeName_1); },
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setRequest: function (requestId) {
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currentRequestId_1 = requestId;
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perRequestPipeName_1 = namePrefix_1 + requestId;
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},
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resetRequest: function (requestId) {
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if (currentRequestId_1 !== requestId) {
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throw new Error("Mismatched request id, expected ".concat(currentRequestId_1, ", actual ").concat(requestId));
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}
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perRequestPipeName_1 = undefined;
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}
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};
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}
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else {
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return {
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isCancellationRequested: function () { return pipeExists(cancellationPipeName); },
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setRequest: function (_requestId) { return void 0; },
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resetRequest: function (_requestId) { return void 0; }
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};
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}
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}
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module.exports = createCancellationToken;
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//# sourceMappingURL=cancellationToken.js.map
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