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build.js
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build.js
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'use strict';
const rollup = require('rollup').rollup;
const babel = require('rollup-plugin-babel');
const commonjs = require('rollup-plugin-commonjs');
const alias = require('rollup-plugin-alias');
const uglify = require('rollup-plugin-uglify');
const replace = require('rollup-plugin-replace');
const chalk = require('chalk');
const escapeStringRegexp = require('escape-string-regexp');
const join = require('path').join;
const resolve = require('path').resolve;
const fs = require('fs');
const rimraf = require('rimraf');
const argv = require('minimist')(process.argv.slice(2));
const Modules = require('./modules');
const Bundles = require('./bundles');
const propertyMangleWhitelist = require('./mangle').propertyMangleWhitelist;
const sizes = require('./plugins/sizes-plugin');
const Stats = require('./stats');
const Packaging = require('./packaging');
const Header = require('./header');
const UMD_DEV = Bundles.bundleTypes.UMD_DEV;
const UMD_PROD = Bundles.bundleTypes.UMD_PROD;
const NODE_DEV = Bundles.bundleTypes.NODE_DEV;
const NODE_PROD = Bundles.bundleTypes.NODE_PROD;
const FB_DEV = Bundles.bundleTypes.FB_DEV;
const FB_PROD = Bundles.bundleTypes.FB_PROD;
const RN_DEV = Bundles.bundleTypes.RN_DEV;
const RN_PROD = Bundles.bundleTypes.RN_PROD;
const reactVersion = require('../../package.json').version;
const requestedBundleTypes = (argv.type || '')
.split(',')
.map(type => type.toUpperCase());
const requestedBundleNames = (argv._[0] || '')
.split(',')
.map(type => type.toLowerCase());
// used for when we property mangle with uglify/gcc
const mangleRegex = new RegExp(
`^(?${propertyMangleWhitelist
.map(prop => `!${escapeStringRegexp(prop)}`)
.join('|')}$).*$`,
'g'
);
function getBanner(bundleType, hasteName, filename) {
switch (bundleType) {
case FB_DEV:
case FB_PROD:
case RN_DEV:
case RN_PROD:
let hasteFinalName = hasteName;
switch (bundleType) {
case FB_DEV:
hasteFinalName += '-dev';
break;
case FB_PROD:
hasteFinalName += '-prod';
break;
}
const fbDevCode = `\n\n'use strict';\n\n` + `\nif (__DEV__) {\n`;
return Header.getProvidesHeader(hasteFinalName, bundleType, fbDevCode);
case UMD_DEV:
case UMD_PROD:
return Header.getUMDHeader(filename, reactVersion);
default:
return '';
}
}
function getFooter(bundleType) {
if (bundleType === FB_DEV) {
return '\n}\n';
}
return '';
}
function updateBabelConfig(babelOpts, bundleType) {
let newOpts;
switch (bundleType) {
case UMD_DEV:
case UMD_PROD:
case NODE_DEV:
case NODE_PROD:
case RN_DEV:
case RN_PROD:
newOpts = Object.assign({}, babelOpts);
// we add the objectAssign transform for these bundles
newOpts.plugins = newOpts.plugins.slice();
newOpts.plugins.push(
resolve('./scripts/babel/transform-object-assign-require')
);
return newOpts;
case FB_DEV:
case FB_PROD:
newOpts = Object.assign({}, babelOpts);
// for FB, we don't want the devExpressionWithCodes plugin to run
newOpts.plugins = [];
return newOpts;
}
}
function handleRollupWarnings(warning) {
if (warning.code === 'UNRESOLVED_IMPORT') {
console.error(warning.message);
process.exit(1);
}
console.warn(warning.message || warning);
}
function updateBundleConfig(config, filename, format, bundleType, hasteName) {
return Object.assign({}, config, {
banner: getBanner(bundleType, hasteName, filename),
dest: Packaging.getPackageDestination(config, bundleType, filename),
footer: getFooter(bundleType),
format,
interop: false,
});
}
function stripEnvVariables(production) {
return {
__DEV__: production ? 'false' : 'true',
'process.env.NODE_ENV': production ? "'production'" : "'development'",
};
}
function getFormat(bundleType) {
switch (bundleType) {
case UMD_DEV:
case UMD_PROD:
return `umd`;
case NODE_DEV:
case NODE_PROD:
case FB_DEV:
case FB_PROD:
case RN_DEV:
case RN_PROD:
return `cjs`;
}
}
function getFilename(name, hasteName, bundleType) {
// we do this to replace / to -, for react-dom/server
name = name.replace('/', '-');
switch (bundleType) {
case UMD_DEV:
return `${name}.development.js`;
case UMD_PROD:
return `${name}.production.min.js`;
case NODE_DEV:
return `${name}.development.js`;
case NODE_PROD:
return `${name}.production.min.js`;
case FB_DEV:
case RN_DEV:
return `${hasteName}-dev.js`;
case FB_PROD:
case RN_PROD:
return `${hasteName}-prod.js`;
}
}
function uglifyConfig(mangle, manglePropertiesOnProd, preserveVersionHeader) {
return {
warnings: false,
compress: {
screw_ie8: true,
dead_code: true,
unused: true,
drop_debugger: true,
// we have a string literal <script> that we don't want to evaluate
// for FB prod bundles (where we disable mangling)
evaluate: mangle,
booleans: true,
// Our www inline transform combined with Jest resetModules is confused
// in some rare cases unless we keep all requires at the top:
hoist_funs: mangle,
},
output: {
beautify: !mangle,
comments(node, comment) {
if (preserveVersionHeader && comment.pos === 0 && comment.col === 0) {
// Keep the very first comment (the bundle header) in prod bundles.
if (comment.value.indexOf(reactVersion) === -1) {
// Sanity check: this doesn't look like the bundle header!
throw new Error(
'Expected the first comment to be the file header but got: ' +
comment.value
);
}
return true;
}
// Keep all comments in FB bundles.
return !mangle;
},
},
mangleProperties: mangle && manglePropertiesOnProd
? {
ignore_quoted: true,
regex: mangleRegex,
}
: false,
mangle: mangle
? {
toplevel: true,
screw_ie8: true,
}
: false,
};
}
function getCommonJsConfig(bundleType) {
switch (bundleType) {
case UMD_DEV:
case UMD_PROD:
case NODE_DEV:
case NODE_PROD:
return {};
case RN_DEV:
case RN_PROD:
return {
ignore: Modules.ignoreReactNativeModules(),
};
case FB_DEV:
case FB_PROD:
// Modules we don't want to inline in the bundle.
// Force them to stay as require()s in the output.
return {
ignore: Modules.ignoreFBModules(),
};
}
}
function getPlugins(
entry,
babelOpts,
paths,
filename,
bundleType,
isRenderer,
manglePropertiesOnProd
) {
const plugins = [
babel(updateBabelConfig(babelOpts, bundleType)),
alias(
Modules.getAliases(paths, bundleType, isRenderer, argv.extractErrors)
),
];
const replaceModules = Modules.getDefaultReplaceModules(bundleType);
// We have to do this check because Rollup breaks on empty object.
// TODO: file an issue with rollup-plugin-replace.
if (Object.keys(replaceModules).length > 0) {
plugins.unshift(replace(replaceModules));
}
switch (bundleType) {
case UMD_DEV:
case NODE_DEV:
case FB_DEV:
case RN_DEV:
plugins.push(
replace(stripEnvVariables(false)),
// needs to happen after strip env
commonjs(getCommonJsConfig(bundleType))
);
break;
case UMD_PROD:
case NODE_PROD:
case FB_PROD:
case RN_PROD:
plugins.push(
replace(stripEnvVariables(true)),
// needs to happen after strip env
commonjs(getCommonJsConfig(bundleType)),
uglify(
uglifyConfig(
bundleType !== FB_PROD,
manglePropertiesOnProd,
bundleType === UMD_PROD
)
)
);
break;
}
// this needs to come last or it doesn't report sizes correctly
plugins.push(
sizes({
getSize: (size, gzip) => {
const key = `${filename} (${bundleType})`;
Stats.currentBuildResults.bundleSizes[key] = {
size,
gzip,
};
},
})
);
return plugins;
}
function createBundle(bundle, bundleType) {
const shouldSkipBundleType = bundle.bundleTypes.indexOf(bundleType) === -1;
if (shouldSkipBundleType) {
return Promise.resolve();
}
if (requestedBundleTypes.length > 0) {
const isAskingForDifferentType = requestedBundleTypes.every(
requestedType => bundleType.indexOf(requestedType) === -1
);
if (isAskingForDifferentType) {
return Promise.resolve();
}
}
if (requestedBundleNames.length > 0) {
const isAskingForDifferentNames = requestedBundleNames.every(
requestedName => bundle.label.indexOf(requestedName) === -1
);
if (isAskingForDifferentNames) {
return Promise.resolve();
}
}
const filename = getFilename(bundle.name, bundle.hasteName, bundleType);
const logKey =
chalk.white.bold(filename) + chalk.dim(` (${bundleType.toLowerCase()})`);
const format = getFormat(bundleType);
const packageName = Packaging.getPackageName(bundle.name);
console.log(`${chalk.bgYellow.black(' STARTING ')} ${logKey}`);
return rollup({
entry: bundleType === FB_DEV || bundleType === FB_PROD
? bundle.fbEntry
: bundle.entry,
external: Modules.getExternalModules(
bundle.externals,
bundleType,
bundle.isRenderer
),
onwarn: handleRollupWarnings,
plugins: getPlugins(
bundle.entry,
bundle.babelOpts,
bundle.paths,
filename,
bundleType,
bundle.isRenderer,
bundle.manglePropertiesOnProd
),
})
.then(result =>
result.write(
updateBundleConfig(
bundle.config,
filename,
format,
bundleType,
bundle.hasteName
)
)
)
.then(() => Packaging.createNodePackage(bundleType, packageName, filename))
.then(() => {
console.log(`${chalk.bgGreen.black(' COMPLETE ')} ${logKey}\n`);
})
.catch(error => {
if (error.code) {
console.error(`\x1b[31m-- ${error.code} (${error.plugin}) --`);
console.error(error.message);
console.error(error.loc);
console.error(error.codeFrame);
} else {
console.error(error);
}
process.exit(1);
});
}
// clear the build directory
rimraf('build', () => {
// create a new build directory
fs.mkdirSync('build');
// create the packages folder for NODE+UMD bundles
fs.mkdirSync(join('build', 'packages'));
// create the dist folder for UMD bundles
fs.mkdirSync(join('build', 'dist'));
const tasks = [
Packaging.createFacebookWWWBuild,
Packaging.createReactNativeBuild,
];
for (const bundle of Bundles.bundles) {
tasks.push(
() => createBundle(bundle, UMD_DEV),
() => createBundle(bundle, UMD_PROD),
() => createBundle(bundle, NODE_DEV),
() => createBundle(bundle, NODE_PROD),
() => createBundle(bundle, FB_DEV),
() => createBundle(bundle, FB_PROD),
() => createBundle(bundle, RN_DEV),
() => createBundle(bundle, RN_PROD)
);
}
// rather than run concurently, opt to run them serially
// this helps improve console/warning/error output
// and fixes a bunch of IO failures that sometimes occured
return runWaterfall(tasks)
.then(() => {
// output the results
console.log(Stats.printResults());
// save the results for next run
Stats.saveResults();
if (argv.extractErrors) {
console.warn(
'\nWarning: this build was created with --extractErrors enabled.\n' +
'this will result in extremely slow builds and should only be\n' +
'used when the error map needs to be rebuilt.\n'
);
}
})
.catch(err => {
console.error(err);
process.exit(1);
});
});
function runWaterfall(promiseFactories) {
if (promiseFactories.length === 0) {
return Promise.resolve();
}
const head = promiseFactories[0];
const tail = promiseFactories.slice(1);
const nextPromiseFactory = head;
const nextPromise = nextPromiseFactory();
if (!nextPromise || typeof nextPromise.then !== 'function') {
throw new Error('runWaterfall() received something that is not a Promise.');
}
return nextPromise.then(() => {
return runWaterfall(tail);
});
}