scripts/build/ninja/generate-declaration.js

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import fs from 'node:fs';
import path from 'node:path';

import {writeIfChanged} from './write-if-changed.js';

const [, , outputDirectory, entrypointName] = process.argv;

const rawFileName = path.basename(entrypointName, path.extname(entrypointName));
const inputLocation = path.join(
    outputDirectory,
    `${rawFileName}.prebundle.d.ts`,
);
const outputLocation = path.join(outputDirectory, `${rawFileName}.d.ts`);

// We can't use copy here, as that would maintain the original file timestamps.
// This can throw off Ninja, which verifies that timestamps of generated files
// are the same as the timestamp it ran the action on.
writeIfChanged(outputLocation, fs.readFileSync(inputLocation));