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| 1 | +/******************************************************************************** |
| 2 | + * Copyright (c) 2026 EclipseSource and others. |
| 3 | + * |
| 4 | + * This program and the accompanying materials are made available under the |
| 5 | + * terms of the Eclipse Public License v. 2.0 which is available at |
| 6 | + * http://www.eclipse.org/legal/epl-2.0. |
| 7 | + * |
| 8 | + * This Source Code may also be made available under the following Secondary |
| 9 | + * Licenses when the conditions for such availability set forth in the Eclipse |
| 10 | + * Public License v. 2.0 are satisfied: GNU General Public License, version 2 |
| 11 | + * with the GNU Classpath Exception which is available at |
| 12 | + * https://www.gnu.org/software/classpath/license.html. |
| 13 | + * |
| 14 | + * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| 15 | + ********************************************************************************/ |
| 16 | +// @ts-check |
| 17 | +const esbuild = require('esbuild'); |
| 18 | +const path = require('path'); |
| 19 | + |
| 20 | +const appRoot = path.resolve(__dirname, 'app'); |
| 21 | + |
| 22 | +const args = process.argv.slice(2); |
| 23 | +const isWatch = args.includes('--watch'); |
| 24 | + |
| 25 | +/** |
| 26 | + * Reports the build progress and surfaces errors/warnings in a format that |
| 27 | + * VS Code's `$esbuild-watch` problem matcher can pick up. |
| 28 | + * @type {import('esbuild').Plugin} |
| 29 | + */ |
| 30 | +const esbuildProblemMatcherPlugin = { |
| 31 | + name: 'esbuild-problem-matcher', |
| 32 | + setup(build) { |
| 33 | + build.onStart(() => { |
| 34 | + console.log(`${isWatch ? '[watch] ' : ''}build started`); |
| 35 | + }); |
| 36 | + build.onEnd(result => { |
| 37 | + result.errors.forEach(({ text, location }) => { |
| 38 | + console.error(`✘ [ERROR] ${text}`); |
| 39 | + if (location) { |
| 40 | + console.error(` ${location.file}:${location.line}:${location.column}:`); |
| 41 | + } |
| 42 | + }); |
| 43 | + console.log(`${isWatch ? '[watch] ' : ''}build finished`); |
| 44 | + }); |
| 45 | + } |
| 46 | +}; |
| 47 | + |
| 48 | +/** @type {import('esbuild').BuildOptions} */ |
| 49 | +const buildOptions = { |
| 50 | + entryPoints: [path.resolve(__dirname, 'src', 'app.ts')], |
| 51 | + outdir: appRoot, |
| 52 | + entryNames: 'bundle', // -> app/bundle.js + app/bundle.css (extracted from the imported CSS) |
| 53 | + assetNames: '[name]-[hash]', // -> app/codicon-<hash>.ttf, referenced relatively from bundle.css |
| 54 | + bundle: true, |
| 55 | + minify: true, |
| 56 | + sourcemap: true, // emit .map files alongside the minified bundle so the original sources stay debuggable |
| 57 | + format: 'iife', // diagram.html loads bundle.js via a classic <script src> |
| 58 | + platform: 'browser', |
| 59 | + target: ['es2019'], |
| 60 | + logLevel: 'silent', |
| 61 | + loader: { '.ttf': 'file' }, |
| 62 | + plugins: [esbuildProblemMatcherPlugin] |
| 63 | +}; |
| 64 | + |
| 65 | +async function main() { |
| 66 | + if (isWatch) { |
| 67 | + const ctx = await esbuild.context(buildOptions); |
| 68 | + await ctx.watch(); |
| 69 | + } else { |
| 70 | + await esbuild.build(buildOptions); |
| 71 | + } |
| 72 | +} |
| 73 | + |
| 74 | +main().catch(error => { |
| 75 | + console.error(error); |
| 76 | + process.exit(1); |
| 77 | +}); |
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