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build-all-release-channels.js
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build-all-release-channels.js
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'use strict';
/* eslint-disable no-for-of-loops/no-for-of-loops */
const crypto = require('node:crypto');
const fs = require('fs');
const fse = require('fs-extra');
const {spawnSync} = require('child_process');
const path = require('path');
const tmp = require('tmp');
const shell = require('shelljs');
const {
ReactVersion,
stablePackages,
experimentalPackages,
canaryChannelLabel,
} = require('../../ReactVersions');
// Runs the build script for both stable and experimental release channels,
// by configuring an environment variable.
const sha = String(
spawnSync('git', ['show', '-s', '--no-show-signature', '--format=%h']).stdout
).trim();
let dateString = String(
spawnSync('git', [
'show',
'-s',
'--no-show-signature',
'--format=%cd',
'--date=format:%Y%m%d',
sha,
]).stdout
).trim();
// On CI environment, this string is wrapped with quotes '...'s
if (dateString.startsWith("'")) {
dateString = dateString.slice(1, 9);
}
// Build the artifacts using a placeholder React version. We'll then do a string
// replace to swap it with the correct version per release channel.
const PLACEHOLDER_REACT_VERSION = ReactVersion + '-PLACEHOLDER';
// TODO: We should inject the React version using a build-time parameter
// instead of overwriting the source files.
fs.writeFileSync(
'./packages/shared/ReactVersion.js',
`export default '${PLACEHOLDER_REACT_VERSION}';\n`
);
if (process.env.CIRCLE_NODE_TOTAL) {
// In CI, we use multiple concurrent processes. Allocate half the processes to
// build the stable channel, and the other half for experimental. Override
// the environment variables to "trick" the underlying build script.
const total = parseInt(process.env.CIRCLE_NODE_TOTAL, 10);
const halfTotal = Math.floor(total / 2);
const index = parseInt(process.env.CIRCLE_NODE_INDEX, 10);
if (index < halfTotal) {
const nodeTotal = halfTotal;
const nodeIndex = index;
buildForChannel('stable', nodeTotal, nodeIndex);
processStable('./build');
} else {
const nodeTotal = total - halfTotal;
const nodeIndex = index - halfTotal;
buildForChannel('experimental', nodeTotal, nodeIndex);
processExperimental('./build');
}
} else {
// Running locally, no concurrency. Move each channel's build artifacts into
// a temporary directory so that they don't conflict.
buildForChannel('stable', '', '');
const stableDir = tmp.dirSync().name;
crossDeviceRenameSync('./build', stableDir);
processStable(stableDir);
buildForChannel('experimental', '', '');
const experimentalDir = tmp.dirSync().name;
crossDeviceRenameSync('./build', experimentalDir);
processExperimental(experimentalDir);
// Then merge the experimental folder into the stable one. processExperimental
// will have already removed conflicting files.
//
// In CI, merging is handled automatically by CircleCI's workspace feature.
mergeDirsSync(experimentalDir + '/', stableDir + '/');
// Now restore the combined directory back to its original name
crossDeviceRenameSync(stableDir, './build');
}
function buildForChannel(channel, nodeTotal, nodeIndex) {
const {status} = spawnSync(
'node',
['./scripts/rollup/build.js', ...process.argv.slice(2)],
{
stdio: ['pipe', process.stdout, process.stderr],
env: {
...process.env,
RELEASE_CHANNEL: channel,
CIRCLE_NODE_TOTAL: nodeTotal,
CIRCLE_NODE_INDEX: nodeIndex,
},
}
);
if (status !== 0) {
// Error of spawned process is already piped to this stderr
process.exit(status);
}
}
function processStable(buildDir) {
if (fs.existsSync(buildDir + '/node_modules')) {
// Identical to `oss-stable` but with real, semver versions. This is what
// will get published to @latest.
shell.cp('-r', buildDir + '/node_modules', buildDir + '/oss-stable-semver');
const defaultVersionIfNotFound = '0.0.0' + '-' + sha + '-' + dateString;
const versionsMap = new Map();
for (const moduleName in stablePackages) {
const version = stablePackages[moduleName];
versionsMap.set(
moduleName,
version + '-' + canaryChannelLabel + '-' + sha + '-' + dateString,
defaultVersionIfNotFound
);
}
updatePackageVersions(
buildDir + '/node_modules',
versionsMap,
defaultVersionIfNotFound,
true
);
fs.renameSync(buildDir + '/node_modules', buildDir + '/oss-stable');
updatePlaceholderReactVersionInCompiledArtifacts(
buildDir + '/oss-stable',
ReactVersion + '-' + canaryChannelLabel + '-' + sha + '-' + dateString
);
// Now do the semver ones
const semverVersionsMap = new Map();
for (const moduleName in stablePackages) {
const version = stablePackages[moduleName];
semverVersionsMap.set(moduleName, version);
}
updatePackageVersions(
buildDir + '/oss-stable-semver',
semverVersionsMap,
defaultVersionIfNotFound,
false
);
updatePlaceholderReactVersionInCompiledArtifacts(
buildDir + '/oss-stable-semver',
ReactVersion
);
}
if (fs.existsSync(buildDir + '/facebook-www')) {
const hash = crypto.createHash('sha1');
for (const fileName of fs.readdirSync(buildDir + '/facebook-www').sort()) {
const filePath = buildDir + '/facebook-www/' + fileName;
const stats = fs.statSync(filePath);
if (!stats.isDirectory()) {
hash.update(fs.readFileSync(filePath));
fs.renameSync(filePath, filePath.replace('.js', '.classic.js'));
}
}
updatePlaceholderReactVersionInCompiledArtifacts(
buildDir + '/facebook-www',
ReactVersion + '-www-classic-' + hash.digest('hex').slice(0, 8)
);
}
const reactNativeBuildDir = buildDir + '/react-native/implementations/';
if (fs.existsSync(reactNativeBuildDir)) {
const hash = crypto.createHash('sha1');
for (const fileName of fs.readdirSync(reactNativeBuildDir).sort()) {
const filePath = reactNativeBuildDir + fileName;
const stats = fs.statSync(filePath);
if (!stats.isDirectory()) {
hash.update(fs.readFileSync(filePath));
}
}
updatePlaceholderReactVersionInCompiledArtifacts(
reactNativeBuildDir,
ReactVersion +
'-' +
canaryChannelLabel +
'-' +
hash.digest('hex').slice(0, 8)
);
}
// Update remaining placeholders with canary channel version
updatePlaceholderReactVersionInCompiledArtifacts(
buildDir,
ReactVersion + '-' + canaryChannelLabel + '-' + sha + '-' + dateString
);
if (fs.existsSync(buildDir + '/sizes')) {
fs.renameSync(buildDir + '/sizes', buildDir + '/sizes-stable');
}
}
function processExperimental(buildDir, version) {
if (fs.existsSync(buildDir + '/node_modules')) {
const defaultVersionIfNotFound =
'0.0.0' + '-experimental-' + sha + '-' + dateString;
const versionsMap = new Map();
for (const moduleName in stablePackages) {
versionsMap.set(moduleName, defaultVersionIfNotFound);
}
for (const moduleName of experimentalPackages) {
versionsMap.set(moduleName, defaultVersionIfNotFound);
}
updatePackageVersions(
buildDir + '/node_modules',
versionsMap,
defaultVersionIfNotFound,
true
);
fs.renameSync(buildDir + '/node_modules', buildDir + '/oss-experimental');
updatePlaceholderReactVersionInCompiledArtifacts(
buildDir + '/oss-experimental',
// TODO: The npm version for experimental releases does not include the
// React version, but the runtime version does so that DevTools can do
// feature detection. Decide what to do about this later.
ReactVersion + '-experimental-' + sha + '-' + dateString
);
}
if (fs.existsSync(buildDir + '/facebook-www')) {
const hash = crypto.createHash('sha1');
for (const fileName of fs.readdirSync(buildDir + '/facebook-www').sort()) {
const filePath = buildDir + '/facebook-www/' + fileName;
const stats = fs.statSync(filePath);
if (!stats.isDirectory()) {
hash.update(fs.readFileSync(filePath));
fs.renameSync(filePath, filePath.replace('.js', '.modern.js'));
}
}
updatePlaceholderReactVersionInCompiledArtifacts(
buildDir + '/facebook-www',
ReactVersion + '-www-modern-' + hash.digest('hex').slice(0, 8)
);
}
// Update remaining placeholders with canary channel version
updatePlaceholderReactVersionInCompiledArtifacts(
buildDir,
ReactVersion + '-' + canaryChannelLabel + '-' + sha + '-' + dateString
);
if (fs.existsSync(buildDir + '/sizes')) {
fs.renameSync(buildDir + '/sizes', buildDir + '/sizes-experimental');
}
// Delete all other artifacts that weren't handled above. We assume they are
// duplicates of the corresponding artifacts in the stable channel. Ideally,
// the underlying build script should not have produced these files in the
// first place.
for (const pathName of fs.readdirSync(buildDir)) {
if (
pathName !== 'oss-experimental' &&
pathName !== 'facebook-www' &&
pathName !== 'sizes-experimental'
) {
spawnSync('rm', ['-rm', buildDir + '/' + pathName]);
}
}
}
function crossDeviceRenameSync(source, destination) {
return fse.moveSync(source, destination, {overwrite: true});
}
/*
* Grabs the built packages in ${tmp_build_dir}/node_modules and updates the
* `version` key in their package.json to 0.0.0-${date}-${commitHash} for the commit
* you're building. Also updates the dependencies and peerDependencies
* to match this version for all of the 'React' packages
* (packages available in this repo).
*/
function updatePackageVersions(
modulesDir,
versionsMap,
defaultVersionIfNotFound,
pinToExactVersion
) {
for (const moduleName of fs.readdirSync(modulesDir)) {
let version = versionsMap.get(moduleName);
if (version === undefined) {
// TODO: If the module is not in the version map, we should exclude it
// from the build artifacts.
version = defaultVersionIfNotFound;
}
const packageJSONPath = path.join(modulesDir, moduleName, 'package.json');
const stats = fs.statSync(packageJSONPath);
if (stats.isFile()) {
const packageInfo = JSON.parse(fs.readFileSync(packageJSONPath));
// Update version
packageInfo.version = version;
if (packageInfo.dependencies) {
for (const dep of Object.keys(packageInfo.dependencies)) {
const depVersion = versionsMap.get(dep);
if (depVersion !== undefined) {
packageInfo.dependencies[dep] = pinToExactVersion
? depVersion
: '^' + depVersion;
}
}
}
if (packageInfo.peerDependencies) {
if (
!pinToExactVersion &&
(moduleName === 'use-sync-external-store' ||
moduleName === 'use-subscription')
) {
// use-sync-external-store supports older versions of React, too, so
// we don't override to the latest version. We should figure out some
// better way to handle this.
// TODO: Remove this special case.
} else {
for (const dep of Object.keys(packageInfo.peerDependencies)) {
const depVersion = versionsMap.get(dep);
if (depVersion !== undefined) {
packageInfo.peerDependencies[dep] = pinToExactVersion
? depVersion
: '^' + depVersion;
}
}
}
}
// Write out updated package.json
fs.writeFileSync(packageJSONPath, JSON.stringify(packageInfo, null, 2));
}
}
}
function updatePlaceholderReactVersionInCompiledArtifacts(
artifactsDirectory,
newVersion
) {
// Update the version of React in the compiled artifacts by searching for
// the placeholder string and replacing it with a new one.
const artifactFilenames = String(
spawnSync('grep', [
'-lr',
PLACEHOLDER_REACT_VERSION,
'--',
artifactsDirectory,
]).stdout
)
.trim()
.split('\n')
.filter(filename => filename.endsWith('.js'));
for (const artifactFilename of artifactFilenames) {
const originalText = fs.readFileSync(artifactFilename, 'utf8');
const replacedText = originalText.replaceAll(
PLACEHOLDER_REACT_VERSION,
newVersion
);
fs.writeFileSync(artifactFilename, replacedText);
}
}
/**
* cross-platform alternative to `rsync -ar`
* @param {string} source
* @param {string} destination
*/
function mergeDirsSync(source, destination) {
for (const sourceFileBaseName of fs.readdirSync(source)) {
const sourceFileName = path.join(source, sourceFileBaseName);
const targetFileName = path.join(destination, sourceFileBaseName);
const sourceFile = fs.statSync(sourceFileName);
if (sourceFile.isDirectory()) {
fse.ensureDirSync(targetFileName);
mergeDirsSync(sourceFileName, targetFileName);
} else {
fs.copyFileSync(sourceFileName, targetFileName);
}
}
}