@naturalcycles/nodejs-lib/dist/util/script.util.js

Standard library for Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const __1 = require("..");
/**
 * Use it in your top-level scripts like this:
 *
 * runScript(async () => {
 *   await lalala()
 *   // my script goes on....
 * })
 *
 * Advantages:
 * - Works kind of like top-level await
 * - No need to add `void`
 * - No need to add `.then(() => process.exit()` (e.g to close DB connections)
 * - No need to add `.catch(err => { console.error(err); process.exit(1) })`
 */
function runScript(fn, opt = {}) {
    process.on('uncaughtException', err => {
        console.error('uncaughtException', err);
    });
    process.on('unhandledRejection', err => {
        console.error('unhandledRejection', err);
    });
    const { memoryInterval } = opt;
    if (memoryInterval) {
        setInterval(logMemory, memoryInterval);
    }
    void (async () => {
        try {
            await fn();
            setImmediate(() => process.exit(0));
        }
        catch (err) {
            console.error(err);
            process.exit(1);
        }
    })();
}
exports.runScript = runScript;
function logMemory() {
    const { heapUsed } = process.memoryUsage();
    console.log({
        heapUsed: __1.mb(heapUsed),
    });
}
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