33 lines
745 B
JavaScript
33 lines
745 B
JavaScript
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'use strict';
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const debug = require('debug')('wait-port');
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const detect = require('./detect-port');
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const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
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async function waitPort(port, options = {}) {
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const { retryInterval = 1000, retries = Infinity } = options;
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let count = 1;
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async function loop() {
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debug('retries', retries, 'count', count);
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if (count > retries) {
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const err = new Error('retries exceeded');
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err.retries = retries;
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err.count = count;
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throw err;
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}
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count++;
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const freePort = await detect(port);
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if (freePort === port) {
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await sleep(retryInterval);
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return loop();
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}
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return true;
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}
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return await loop();
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}
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module.exports = waitPort;
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