85 lines
2.8 KiB
JavaScript
85 lines
2.8 KiB
JavaScript
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"use strict";
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import fs from "fs";
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import path from "path";
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import commonjs from '@rollup/plugin-commonjs';
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import resolveNode from "@rollup/plugin-node-resolve";
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import replace from "@rollup/plugin-replace";
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// We only need this for its version (we inject it into a require)
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import elliptic from "elliptic";
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function getSigningKeyConfig() {
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const plugins = [ ];
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// Remove the buffer check from BN.js
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plugins.push(replace({
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"require('buffer')": "/*RicMoo:ethers*/(null)",
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include: "**/lib/bn.js",
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delimiters: [ '', '' ]
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}));
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// Replace the package.json in elliptic
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plugins.push(replace({
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"require('../package.json')": `/*RicMoo:ethers*/{ version: "${ elliptic.version }" }`,
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include: "**/lib/elliptic.js",
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delimiters: [ '', '' ]
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}));
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// Nuke a bunch of requires we don't need in elliptic
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const thrower = "(function() { throw new Error('unsupported'); })";
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const crash = "(null).crash()";
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[
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{ name: "./edwards", filename: "curve/index.js" },
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{ name: "./mont", filename: "curve/index.js" },
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{ name: "./elliptic/eddsa", filename: "lib/elliptic.js" },
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{ name: "brorand", filename: "ec/index.js", text: thrower },
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{ name: "brorand", filename: "lib/elliptic.js", text: thrower },
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{ name: "./precomputed/secp256k1", filename: "elliptic/curves.js", text: crash },
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].forEach(({ name, filename, text }) => {
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if (text == null) { text = "(null)"; }
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const replacement = {
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include: `**/${ filename }`,
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delimiters: [ '', '' ]
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};
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replacement[`require('${ name }')`] = `/*RicMoo:ethers:require(${ name })*/${ text }`,
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plugins.push(replace(replacement));
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});
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// Keep @ethersproject imports, merge anything else
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plugins.push(resolveNode({
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//resolveOnly: ((name === "ethers") ? []: [ /^(?!(@ethersproject|ethers))/ ]),
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resolveOnly: [ /^(?!(@ethersproject|ethers|bn\.js|hash\.js))/ ],
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mainFields: [ "module", "browser", "main" ],
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preferBuiltins: false
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}));
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// Our CommonJS dependencies that are not rollup-friendly
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plugins.push(commonjs({ }));
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// Write out a dummy TypeScript definition
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const typeDef = "//This file generated by rollup-pre-alias.config.js; do NOT modify\ndeclare const EC: any;\nexport { EC };"
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fs.writeFileSync(path.resolve(__dirname, "packages/signing-key/lib._esm/browser-elliptic.d.ts"), typeDef);
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return {
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input: `packages/signing-key/lib._esm/elliptic.js`,
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output: {
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file: `packages/signing-key/lib._esm/browser-elliptic.js`,
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format: "esm",
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sourcemap: true,
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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
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};
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}
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const configs = [
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getSigningKeyConfig()
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];
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export default configs;
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