mirror of
https://github.com/react/react-native.git
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Alex Hunt
cc9164c337
Summary: ### Motivation Updates the shared JavaScript build setup to use the modern `publishConfig` convention. This: - Simplifies the build script. - Makes the production values for `"exports"` more understandable in place (especially by separating from exports conditions). - Prevents us from creating a dirty file state when running `yarn build`. ### Changes - Add `publishConfig` to each `package.json` listing production `"exports"` targets. - Add `scripts/build/prepack.js` script to action `publishConfig` (now on `npm pack`, `npm publish` exclusively). - Remove `"exports"` rewriting (and un-rewriting safeguards) from build script. **Note on `"prepack"`** Slightly unfortunately, `publishConfig` doesn't work consistently between package managers currently, including npm — so this does not work implicitly (but may in future). We're instead following `publishConfig` as a convention, and explicitly implementing a full copy (theoretically forking us towards pnpm and Yarn v4's approach). However, I believe this is: - Worthwhile, for the motivations above — and in particular being able to understand the final shape of `"exports"` (independent from the dimension of conditional exports, which may come into play later). - Completely inspectable/maintainable as an explicit implementation (`scripts/build/prepack.js`). Changelog: [Internal] Pull Request resolved: https://github.com/facebook/react-native/pull/54857 Test Plan: ### CI ✅ GitHub Actions ### End-to-end release test script (Note: Rebased on `0.83-stable` when tested) ``` yarn test-release-local -t "RNTestProject" -p "iOS" -c $GITHUB_TOKEN ``` {F1984106139} ✅ Test script runs `npm publish` on packages to a local proxy. {F1984106146} ✅ Installed packages have `publishConfig` `"exports"` values applied NOTE: ⬆️ This is **exactly** the same output as before. {F1984106148} ✅ `/tmp/RNTestProject` runs using built + proxy-published + proxy-installed packages Reviewed By: cipolleschi Differential Revision: D88963450 Pulled By: huntie fbshipit-source-id: f328252cf93a1f1039b79d7f369d1e6e7e5b4b52
46 lines
1.2 KiB
JavaScript
46 lines
1.2 KiB
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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* @format
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*/
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require('../shared/babelRegister').registerForScript();
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const {promises: fs} = require('fs');
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const path = require('path');
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// "prepack" script to prepare JavaScript packages for publishing.
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//
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// We use this to copy over fields from "publishConfig" to the root of each
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// package.json, which is not supported in Yarn v1.
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async function prepack() {
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const pkgJsonPath = path.join(process.cwd(), './package.json');
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const contents = JSON.parse(await fs.readFile(pkgJsonPath, 'utf8'));
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if (
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path.dirname(pkgJsonPath).split(path.sep).slice(-2, -1)[0] !== 'packages'
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) {
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console.error('Error: prepack.js must be run from a package directory');
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process.exitCode = 1;
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return;
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}
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if (contents.publishConfig != null) {
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for (const key of Object.keys(contents.publishConfig)) {
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contents[key] = contents.publishConfig[key];
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}
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}
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delete contents.publishConfig;
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await fs.writeFile(pkgJsonPath, JSON.stringify(contents, null, 2) + '\n');
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}
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if (require.main === module) {
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void prepack();
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}
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