52 lines
1.3 KiB
JavaScript
52 lines
1.3 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true,
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});
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exports.default = isDevServerRunning;
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var _net = _interopRequireDefault(require("net"));
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function _interopRequireDefault(e) {
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return e && e.__esModule ? e : { default: e };
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}
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async function isDevServerRunning(devServerUrl, projectRoot) {
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const { hostname, port } = new URL(devServerUrl);
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try {
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if (!(await isPortOccupied(hostname, port))) {
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return "not_running";
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}
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const statusResponse = await fetch(`${devServerUrl}/status`);
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const body = await statusResponse.text();
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return body === "packager-status:running" &&
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statusResponse.headers.get("X-React-Native-Project-Root") === projectRoot
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? "matched_server_running"
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: "port_taken";
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} catch (e) {
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return "unknown";
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}
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}
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async function isPortOccupied(hostname, port) {
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let result = false;
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const server = _net.default.createServer();
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return new Promise((resolve, reject) => {
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server.once("error", (e) => {
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server.close();
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if (e.code === "EADDRINUSE") {
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result = true;
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} else {
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reject(e);
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}
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});
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server.once("listening", () => {
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result = false;
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server.close();
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});
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server.once("close", () => {
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resolve(result);
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});
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server.listen({
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host: hostname,
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port,
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});
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});
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}
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