@sussudio/platform/environment/node/stdin.mjs

Internal APIs for VS Code's service injection the base services.

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
import { tmpdir } from 'os';
import { Queue } from '@sussudio/base/common/async.mjs';
import { randomPath } from '@sussudio/base/common/extpath.mjs';
import { Promises } from '@sussudio/base/node/pfs.mjs';
import { resolveTerminalEncoding } from '@sussudio/base/node/terminalEncoding.mjs';
export function hasStdinWithoutTty() {
	try {
		return !process.stdin.isTTY; // Via https://twitter.com/MylesBorins/status/782009479382626304
	} catch (error) {
		// Windows workaround for https://github.com/nodejs/node/issues/11656
	}
	return false;
}
export function stdinDataListener(durationinMs) {
	return new Promise((resolve) => {
		const dataListener = () => resolve(true);
		// wait for 1s maximum...
		setTimeout(() => {
			process.stdin.removeListener('data', dataListener);
			resolve(false);
		}, durationinMs);
		// ...but finish early if we detect data
		process.stdin.once('data', dataListener);
	});
}
export function getStdinFilePath() {
	return randomPath(tmpdir(), 'code-stdin', 3);
}
export async function readFromStdin(targetPath, verbose) {
	let [encoding, iconv] = await Promise.all([
		resolveTerminalEncoding(verbose),
		import('@vscode/iconv-lite-umd'),
		Promises.appendFile(targetPath, ''), // make sure file exists right away (https://github.com/microsoft/vscode/issues/155341)
	]);
	if (!iconv.encodingExists(encoding)) {
		console.log(`Unsupported terminal encoding: ${encoding}, falling back to UTF-8.`);
		encoding = 'utf8';
	}
	// Use a `Queue` to be able to use `appendFile`
	// which helps file watchers to be aware of the
	// changes because each append closes the underlying
	// file descriptor.
	// (https://github.com/microsoft/vscode/issues/148952)
	const appendFileQueue = new Queue();
	const decoder = iconv.getDecoder(encoding);
	process.stdin.on('data', (chunk) => {
		const chunkStr = decoder.write(chunk);
		appendFileQueue.queue(() => Promises.appendFile(targetPath, chunkStr));
	});
	process.stdin.on('end', () => {
		const end = decoder.end();
		if (typeof end === 'string') {
			appendFileQueue.queue(() => Promises.appendFile(targetPath, end));
		}
	});
}