ts-node-restarter/dist/ts-node-restarter.js

A cli tool for restarting your node.js server when files change

#!/usr/bin/env node

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const fs_1 = __importDefault(require("fs"));
const path_1 = __importDefault(require("path"));
const child_process_1 = __importDefault(require("child_process"));
const parsePath = (pathName) => {
    return path_1.default.join(process.cwd(), pathName);
};
const parseTargetScriptPath = () => {
    const args = process.argv;
    if (args.length !== 3) {
        console.log('can\'t find target script!');
        process.exit(1);
    }
    const targetScriptName = args[2];
    const targetScriptPath = parsePath(targetScriptName);
    return targetScriptPath;
};
const parseConfig = () => {
    const configFilePath = parsePath('restarter.json');
    const configString = fs_1.default.readFileSync(configFilePath, { encoding: 'utf8' });
    const configObj = JSON.parse(configString);
    return configObj;
};
const main = () => {
    const targetScriptPath = parseTargetScriptPath();
    let targetProcess = child_process_1.default.fork(targetScriptPath);
    console.log('Server started!');
    const config = parseConfig();
    const watchFiles = (config === null || config === void 0 ? void 0 : config.watch) || [];
    const handleFileChange = (filename) => {
        targetProcess.kill();
        console.log(`${filename} changed!`);
        console.log('Server stopped!');
        targetProcess = child_process_1.default.fork(targetScriptPath);
        console.log('Server restarted!');
    };
    const watchers = [];
    watchFiles.forEach((path) => {
        const isFile = /\.(ts|js)$/.test(path);
        const absolutePath = parsePath(path);
        if (isFile) {
            fs_1.default.watchFile(absolutePath, () => {
                handleFileChange(absolutePath);
            });
        }
        else {
            const watcher = fs_1.default.watch(absolutePath, (event, filename) => {
                handleFileChange(filename);
            });
            watchers.push(watcher);
        }
    });
    process.on('SIGINT', () => {
        // exist target process
        targetProcess.kill();
        // unwatch files
        watchFiles.forEach((path) => {
            const isFile = /\.(ts|js)$/.test(path);
            const absolutePath = parsePath(path);
            if (isFile) {
                fs_1.default.unwatchFile(absolutePath);
            }
        });
        watchers.forEach(watcher => watcher.close());
        // exit current process
        process.exit();
    });
};
main();