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rollup.config.js
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rollup.config.js
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import babel from '@rollup/plugin-babel';
import commonjs from '@rollup/plugin-commonjs';
import copy from 'rollup-plugin-copy';
import flowRemoveTypes from 'flow-remove-types';
import json from '@rollup/plugin-json';
import nodeResolve from '@rollup/plugin-node-resolve';
import nodePolyfills from 'rollup-plugin-node-polyfills';
import {terser} from 'rollup-plugin-terser';
function generateConfig(configType, format) {
const browser = configType === 'browser';
const bundle = format === 'iife';
const config = {
input: 'client/token.js',
plugins: [
flow(),
commonjs(),
nodeResolve({
browser,
preferBuiltins: !browser,
dedupe: ['bn.js', 'buffer'],
}),
babel({
exclude: '**/node_modules/**',
babelHelpers: bundle ? 'bundled' : 'runtime',
plugins: bundle ? [] : ['@babel/plugin-transform-runtime'],
}),
copy({
targets: [{src: 'module.d.ts', dest: 'lib', rename: 'index.d.ts'}],
}),
],
treeshake: {
moduleSideEffects: false,
},
};
switch (configType) {
case 'browser':
switch (format) {
case 'esm': {
config.output = [
{
file: 'lib/index.browser.esm.js',
format: 'es',
sourcemap: true,
},
];
// Prevent dependencies from being bundled
config.external = [
/@babel\/runtime/,
'bn.js',
// Bundled for `Buffer` consistency
// 'bs58',
// 'buffer',
// 'buffer-layout',
'@solana/web3.js',
];
break;
}
case 'iife': {
config.output = [
{
file: 'lib/index.iife.js',
format: 'iife',
name: 'splToken',
sourcemap: true,
},
{
file: 'lib/index.iife.min.js',
format: 'iife',
name: 'splToken',
sourcemap: true,
plugins: [terser({mangle: false, compress: false})],
},
];
break;
}
default:
throw new Error(`Unknown format: ${format}`);
}
// TODO: Find a workaround to avoid resolving the following JSON file:
// `node_modules/secp256k1/node_modules/elliptic/package.json`
config.plugins.push(json());
config.plugins.push(nodePolyfills());
break;
case 'node':
config.output = [
{
file: 'lib/index.cjs.js',
format: 'cjs',
sourcemap: true,
},
{
file: 'lib/index.esm.js',
format: 'es',
sourcemap: true,
},
];
// Quash 'Unresolved dependencies' complaints for modules listed in the
// package.json "dependencies" section. Unfortunately this list is manually
// maintained.
config.external = [
/@babel\/runtime/,
'assert',
'bn.js',
'buffer-layout',
'@solana/web3.js',
];
break;
default:
throw new Error(`Unknown configType: ${configType}`);
}
return config;
}
export default [
generateConfig('node'),
generateConfig('browser', 'esm'),
generateConfig('browser', 'iife'),
];
// Using this instead of rollup-plugin-flow due to
// https://github.com/leebyron/rollup-plugin-flow/issues/5
function flow() {
return {
name: 'flow-remove-types',
transform: code => ({
code: flowRemoveTypes(code).toString(),
map: null,
}),
};
}