rollup.config.js

import commonjs    from "@rollup/plugin-commonjs";
import json        from "@rollup/plugin-json";
import multiEntry  from "@rollup/plugin-multi-entry";
import nodeResolve from "@rollup/plugin-node-resolve";

/**
 * @type {import('rollup').RollupOptions}
 */
const umd_config = {
  onwarn(message) {
    if (message.code === "EVAL") { return; }
    console.error(message);
  },

  input: "build/ts/lib/peg.js",

  output: {
    file   : "build/rollup/peggy.umd.js",
    format : "umd",
    name   : "peggy",
  },

  plugins : [
    nodeResolve({
      mainFields     : ["module", "main"],
      browser        : true,
      extensions     : [".js", ".json", ".ts", ".tsx"],
      preferBuiltins : false,
    }),
    commonjs(),
  ],
};

/**
 * @type {import('rollup').RollupOptions}
 */
const cli_config = {
  onwarn(message) {
    if (message.code === "EVAL") { return; }
    console.error(message);
  },

  input: "bin/peggy.mjs",
  output: {
    file   : "bin/peggy.js",
    format : "cjs",
    preferConst: true,
    exports: "auto",
    banner: `\
#!/usr/bin/env node

// THIS FILE IS AUTOGENERATED FROM bin/peggy.mjs
// DO NOT EDIT BY HAND.
`,
  },

  plugins : [
    nodeResolve({
      mainFields     : ["module", "main"],
      browser        : false,
      extensions     : [".mjs", ".js", ".json"],
      preferBuiltins : true,
    }),
    commonjs(),
  ],
  external: ["../lib/peg.js"],
};

if (process.env.PEGGY_CLI_DEBUG) {
  cli_config.output.sourcemap = true;
}

/**
 * @type {import('rollup').RollupOptions}
 */
const browser_test_config = {
  onwarn(message) {
    if (message.code === "EVAL") { return; }
    console.error(message);
  },

  input: "build/ts/test/**/*.spec.js",

  output: {
    file   : "build/rollup/test.umd.js",
    format : "umd",
    name   : "browser",
    globals: {
      chai: "chai",
    },
  },
  external: ["chai"],
  plugins : [
    json(),
    nodeResolve(),
    commonjs(),
    multiEntry(),
  ],
};

/**
 * @type {import('rollup').RollupOptions}
 */
const browser_benchmark_config = {
  onwarn(message) {
    if (message.code === "EVAL") { return; }
    console.error(message);
  },

  input: "build/ts/benchmark/browser.stub.js",

  output: {
    file   : "build/rollup/benchmark.umd.js",
    format : "umd",
    name   : "browser",
  },
  plugins : [
    nodeResolve(),
    commonjs(),
  ],
};

const all = process.env.PEGGY_CLI_DEBUG
  ? [cli_config]
  : [
      umd_config, cli_config, browser_test_config, browser_benchmark_config,
    ];

export default all;