/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

'use strict';

import * as fs from 'fs';
import * as path from 'path';
import * as crypto from 'crypto';
const { dirs } = require('../../npm/dirs');

const ROOT = path.join(__dirname, '../../../');

const shasum = crypto.createHash('sha1');

shasum.update(fs.readFileSync(path.join(ROOT, 'build/.cachesalt')));
shasum.update(fs.readFileSync(path.join(ROOT, '.yarnrc')));
shasum.update(fs.readFileSync(path.join(ROOT, 'remote/.yarnrc')));

// Add `yarn.lock` files
for (let dir of dirs) {
	const yarnLockPath = path.join(ROOT, dir, 'yarn.lock');
	shasum.update(fs.readFileSync(yarnLockPath));
}

// Add any other command line arguments
for (let i = 2; i < process.argv.length; i++) {
	shasum.update(process.argv[i]);
}

process.stdout.write(shasum.digest('hex'));
