jsroot/build/rollup.config.js

JavaScript ROOT

import json from '@rollup/plugin-json';
import nodeResolve from '@rollup/plugin-node-resolve';
import terser from '@rollup/plugin-terser';
import replace from '@rollup/plugin-replace';
import ascii from 'rollup-plugin-ascii';
import ignore from 'rollup-plugin-ignore';
import meta from '../package.json' with { type: 'json' };

const ignore_jsroot_modules = [ './base/lzma.mjs', './base/zstd.mjs' ];

const external_node_modules = ['mathjax', 'jsdom', 'fs', 'canvas', 'tmp', 'zlib', 'xhr2', 'node:worker_threads', '@oneidentity/zstd-js', 'gl', 'three', 'three/addons'];

// TODO: maybe keep node modules as external to be able use produced builds as well?
const ignore_modules = ignore_jsroot_modules.concat(external_node_modules);

const config = {
  input: "modules/main.mjs",
  output: {
    name: "JSROOT",
    file: "build/jsroot.js",
    format: "umd",
    inlineDynamicImports: true,
    indent: false,
    extend: true,
    banner: `// ${meta.homepage} v${meta.version}`
  },
  plugins: [
    ignore(ignore_modules),
    nodeResolve(),
    json(),
    ascii()
  ],
  onwarn(message, warn) {
    if (message.code === "CIRCULAR_DEPENDENCY")
      return;
    warn(message);
  }
};

const config_hist = {
  ...config,
  input: "modules/hist/bundle.mjs",
  output: {
    ...config.output,
    file: "build/hist.js",
    inlineDynamicImports: true
  }
}

const config_2d = {
  ...config,
  input: "modules/hist2d/bundle.mjs",
  output: {
    ...config.output,
    file: "build/hist2d.js",
    inlineDynamicImports: true
  }
}

const config_geom = {
  ...config,
  input: "modules/geom/bundle.mjs",
  output: {
    ...config.output,
    format: 'es',
    file: 'build/geom.mjs',
    inlineDynamicImports: true
  }
}

const config_geom_nothreejs = {
  ...config,
  input: "modules/geom/bundle.mjs",
  external: ['three', 'three/addons'],
  output: {
    ...config.output,
    format: 'es',
    file: 'build/geom_nothreejs.mjs',
    inlineDynamicImports: true
  },
  plugins: [
    replace({
      delimiters: ['', ''],
      preventAssignment: true,
      "from '../three.mjs'": "from 'three'",
      "from '../three_addons.mjs'": "from 'three/addons'",
    }),
    ignore(ignore_modules),
    nodeResolve(),
    json(),
    ascii()
  ],
}

const config_minified = {
  ...config,
  output: {
    ...config.output,
    file: "build/jsroot.min.js",
    inlineDynamicImports: true
  },
  plugins: [
    ...config.plugins,
    terser({
      output: {
        preamble: config.output.banner
      },
      mangle: {
        reserved: [
          "InternMap",
          "InternSet"
        ]
      }
    })
  ]
}

const config_hist_minified = {
  ...config_minified,
  input: "modules/hist/bundle.mjs",
  output: {
    ...config.output,
    file: "build/hist.min.js",
    inlineDynamicImports: true
  }
}

const config_2d_minified = {
  ...config_minified,
  input: "modules/hist2d/bundle.mjs",
  output: {
    ...config.output,
    file: "build/hist2d.min.js",
    inlineDynamicImports: true
  }
}

export default [
  config,
  config_hist,
  config_2d,
  config_geom,
  config_geom_nothreejs,
  config_minified,
  config_hist_minified,
  config_2d_minified
];