146 lines
4.2 KiB
JavaScript
146 lines
4.2 KiB
JavaScript
"use strict";
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import path from "path";
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import resolve from 'rollup-plugin-node-resolve';
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import commonjs from 'rollup-plugin-commonjs';
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import json from 'rollup-plugin-json';
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import { terser } from "rollup-plugin-terser";
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import { createFilter } from 'rollup-pluginutils';
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function Replacer(basePath, options = {}) {
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const filter = createFilter(options.include, options.exclude);
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const suffixes = Object.keys(options.replace);
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const pathUp = path.resolve(basePath, "..");
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return {
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name: "file-replacer",
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transform(code, id) {
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/*
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console.log("------");
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console.log("NAME", id, id.match("node-resolve:empty.js$"));
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console.log(code);
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console.log("------");
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*/
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if (!filter(id)) { return null; }
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for (let i = 0; i < suffixes.length; i++) {
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const suffix = suffixes[i];
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if (id.match(new RegExp(suffix))) {
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const newCode = options.replace[suffix];
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console.log(`Replace: ${ id.substring(pathUp.length + 1) } (${ code.length } => ${ newCode.length })`);
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return {
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code: newCode,
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map: { mappings: '' }
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};
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}
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}
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if (id.substring(0, basePath.length) !== basePath) {
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console.log(`Keep: ${ id.substring(pathUp.length + 1) }`);
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}
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return null;
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}
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};
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}
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const undef = "module.exports = undefined;";
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const empty = "module.exports = {};";
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const brorand = "module.exports = function(length) { var result = new Uint8Array(length); (global.crypto || global.msCrypto).getRandomValues(result); return result; }";
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const ellipticPackage = (function() {
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const ellipticPackage = require('./node_modules/elliptic/package.json');
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return JSON.stringify({ version: ellipticPackage.version });
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})();
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function getConfig(minify, buildModule, testing) {
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let input = "packages/ethers/lib/index.js"
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let output = [ "umd" ];
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let format = "umd";
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let mainFields = [ "browser", "main" ];
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if (buildModule) {
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input = "packages/ethers/lib.esm/index.js";
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output = [ "esm" ];
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format = "esm";
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mainFields = [ "browser", "module", "main" ];
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}
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const replacer = Replacer(path.resolve("packages"), {
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replace: {
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// Remove the precomputed secp256k1 points
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"elliptic/lib/elliptic/precomputed/secp256k1.js$": undef,
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// Remove curves we don't care about
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"elliptic/curve/edwards.js$": empty,
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"elliptic/curve/mont.js$": empty,
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"elliptic/lib/elliptic/eddsa/.*$": empty,
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// We only use the version from this JSON package
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"elliptic/package.json$" : ellipticPackage,
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// Remove unneeded hashing algorithms
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"hash.js/lib/hash/sha/1.js$": empty,
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"hash.js/lib/hash/sha/224.js$": empty,
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"hash.js/lib/hash/sha/384.js$": empty,
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// Swap out borland for the random bytes we already have
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"brorand/index.js$": brorand,
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}
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});
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const plugins = [
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replacer,
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json(),
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resolve({
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mainFields: mainFields
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}),
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commonjs({
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namedExports: {
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"bn.js": [ "BN" ],
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"hash.js": [ "hmac", "ripemd160", "sha256", "sha512" ],
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"elliptic": [ "ec" ],
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"scrypt-js": [ "scrypt", "syncScrypt" ],
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},
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}),
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];
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if (minify) {
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output.push("min");
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plugins.push(terser());
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}
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const outputFile = [
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"packages",
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(testing ? "tests": "ethers"),
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("/dist/ethers." + output.join(".") + ".js")
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].join("/");
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return {
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input: input,
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output: {
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file: outputFile,
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format: format,
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name: "ethers",
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exports: "named"
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},
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context: "window",
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treeshake: false,
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plugins: plugins
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};
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}
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export default commandLineArgs => {
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const testing = commandLineArgs.configTest;
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const buildModule = commandLineArgs.configModule;
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return [
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getConfig(false, buildModule, testing),
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getConfig(true, buildModule, testing),
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];
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}
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