react-native/scripts/try-n-times.js
Eli White 36fcbaa56d Prettier the rest of ReactNative
Reviewed By: yungsters

Differential Revision: D7974340

fbshipit-source-id: 5fe457a8a9be4bd360fc3af9acb5c1136b2be0d7
2018-05-11 13:52:30 -07:00

41 lines
1.0 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
*/
/* globals echo:false */
'use strict';
/**
* Try executing a function n times recursively.
* Return 0 the first time it succeeds
* Return code of the last failed commands if not more retries left
* @funcToRetry - function that gets retried
* @retriesLeft - number of retries to execute funcToRetry
* @onEveryError - func to execute if funcToRetry returns non 0
*/
function tryExecNTimes(funcToRetry, retriesLeft, onEveryError) {
const exitCode = funcToRetry();
if (exitCode === 0) {
return exitCode;
} else {
if (onEveryError) {
onEveryError();
}
retriesLeft--;
console.warn(`Command failed, ${retriesLeft} retries left`);
if (retriesLeft === 0) {
return exitCode;
} else {
return tryExecNTimes(funcToRetry, retriesLeft, onEveryError);
}
}
}
module.exports = tryExecNTimes;