forked from TypeStrong/ts-node
/
spawn-child.ts
52 lines (51 loc) · 1.63 KB
/
spawn-child.ts
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import type { BootstrapState } from '../bin';
import { spawn } from 'child_process';
import { pathToFileURL } from 'url';
import { versionGteLt } from '../util';
import { argPrefix, compress } from './argv-payload';
/**
* @internal
* @param state Bootstrap state to be transferred into the child process.
* @param targetCwd Working directory to be preserved when transitioning to
* the child process.
*/
export function callInChild(state: BootstrapState) {
if (!versionGteLt(process.versions.node, '12.17.0')) {
throw new Error(
'`ts-node-esm` and `ts-node --esm` require node version 12.17.0 or newer.'
);
}
const child = spawn(
process.execPath,
[
'--require',
require.resolve('./child-require.js'),
'--loader',
// Node on Windows doesn't like `c:\` absolute paths here; must be `file:///c:/`
pathToFileURL(require.resolve('../../child-loader.mjs')).toString(),
require.resolve('./child-entrypoint.js'),
`${argPrefix}${compress(state)}`,
...state.parseArgvResult.restArgs,
],
{
stdio: 'inherit',
argv0: process.argv0,
}
);
child.on('error', (error) => {
console.error(error);
process.exit(1);
});
child.on('exit', (code) => {
child.removeAllListeners();
process.off('SIGINT', sendSignalToChild);
process.off('SIGTERM', sendSignalToChild);
process.exitCode = code === null ? 1 : code;
});
// Ignore sigint and sigterm in parent; pass them to child
process.on('SIGINT', sendSignalToChild);
process.on('SIGTERM', sendSignalToChild);
function sendSignalToChild(signal: string) {
process.kill(child.pid, signal);
}
}