133 lines
3.8 KiB
JavaScript
133 lines
3.8 KiB
JavaScript
"use strict";
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/**
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* This file contains the Gulp tasks for babel-standalone. Note that
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* babel-standalone is compiled using Webpack, and performs its own Babel
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* compilation of all the JavaScript files. This is because it targets web
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* browsers, so more transforms are needed than the regular Babel builds that
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* only target Node.js.
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*
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* The tasks in this file are designed to be reusable, so that they can be used
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* to make standalone builds of other Babel plugins/presets (such as babel-minify)
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*/
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const path = require("path");
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const pump = require("pump");
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const rename = require("gulp-rename");
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const RootMostResolvePlugin = require("webpack-dependency-suite")
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.RootMostResolvePlugin;
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const webpack = require("webpack");
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const webpackStream = require("webpack-stream");
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const uglify = require("gulp-uglify");
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function webpackBuild(opts) {
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const plugins = opts.plugins || [];
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let babelVersion = require("../packages/babel-core/package.json").version;
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let version = opts.version || babelVersion;
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// If this build is part of a pull request, include the pull request number in
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// the version number.
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if (process.env.CIRCLE_PR_NUMBER) {
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const prVersion = "+pr." + process.env.CIRCLE_PR_NUMBER;
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babelVersion += prVersion;
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version += prVersion;
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}
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const config = {
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module: {
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rules: [
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{
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test: /\.js$/,
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loader: "babel-loader",
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options: {
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// Use the bundled config so that module syntax is passed through
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// for Webpack.
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envName: "standalone",
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},
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},
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],
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},
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node: {
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// Mock Node.js modules that Babel require()s but that we don't
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// particularly care about.
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fs: "empty",
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module: "empty",
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net: "empty",
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},
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output: {
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filename: opts.filename,
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library: opts.library,
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libraryTarget: "umd",
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},
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plugins: [
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new webpack.DefinePlugin({
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"process.env.NODE_ENV": '"production"',
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"process.env": JSON.stringify({ NODE_ENV: "production" }),
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BABEL_VERSION: JSON.stringify(babelVersion),
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VERSION: JSON.stringify(version),
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}),
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/*new webpack.NormalModuleReplacementPlugin(
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/..\/..\/package/,
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"../../../../src/babel-package-shim"
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),*/
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new webpack.optimize.ModuleConcatenationPlugin(),
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].concat(plugins),
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resolve: {
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plugins: [
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// Dedupe packages that are used across multiple plugins.
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// This replaces DedupePlugin from Webpack 1.x
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new RootMostResolvePlugin(__dirname, true),
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],
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},
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};
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if (opts.library !== "Babel") {
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config.externals = {
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"@babel/standalone": "Babel",
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};
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}
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return webpackStream(config, webpack);
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// To write JSON for debugging:
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/*return webpackStream(config, webpack, (err, stats) => {
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require('gulp-util').log(stats.toString({colors: true}));
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require('fs').writeFileSync('webpack-debug.json', JSON.stringify(stats.toJson()));
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});*/
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}
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function registerStandalonePackageTask(
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gulp,
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name,
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exportName,
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pathname,
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version,
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plugins
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) {
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const standaloneName = name + "-standalone";
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const standalonePath = path.join(pathname, standaloneName);
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gulp.task("build-" + standaloneName, cb => {
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pump(
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[
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gulp.src(path.join(standalonePath, "src/index.js")),
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webpackBuild({
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filename: name + ".js",
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library: exportName,
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version,
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plugins,
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}),
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gulp.dest(standalonePath),
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].concat(
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// Minification is super slow, so we skip it in CI.
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process.env.CI ? [] : uglify(),
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rename({ extname: ".min.js" }),
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gulp.dest(standalonePath)
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),
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cb
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);
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});
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}
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module.exports = {
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webpackBuild: webpackBuild,
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registerStandalonePackageTask: registerStandalonePackageTask,
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};
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