49 lines
1.6 KiB
JavaScript
Executable File
49 lines
1.6 KiB
JavaScript
Executable File
// Copyright 2019-2021 @polkadot/wasm authors & contributors
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
const fs = require('fs');
|
|
const { formatNumber } = require('@polkadot/util');
|
|
|
|
const A_NAME = 'wasm-crypto-asmjs';
|
|
const W_NAME = 'wasm-crypto-wasm';
|
|
|
|
function hdr (package) {
|
|
return `// Copyright 2019-2021 @polkadot/${package} authors & contributors
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
// Generated as part of the build, do not edit
|
|
`;
|
|
}
|
|
|
|
// only one of the deps are included, here are the details for package.json -
|
|
// "fflate": "^0.4.2"
|
|
// "lz4js": "^0.2.0"
|
|
function getWasmBuffer (lib = 'fflate') {
|
|
const data = fs.readFileSync('./bytes/wasm_opt.wasm');
|
|
const compressed = lib === 'fflate'
|
|
? Buffer.from(require('fflate/node').zlibSync(data, { level: 9 }))
|
|
: Buffer.from(require('lz4js').compress(data));
|
|
|
|
console.log(`*** Compressed WASM via ${lib}: ${formatNumber(data.length)} -> ${formatNumber(compressed.length)} (${(100 * compressed.length / data.length).toFixed(2)}%)`);
|
|
|
|
return { compressed, sizeUncompressed: data.length };
|
|
}
|
|
|
|
fs.writeFileSync(`./${A_NAME}/build/data.mjs`, `${hdr(A_NAME)}
|
|
export { asmJsInit } from './data.js';
|
|
`);
|
|
|
|
fs.writeFileSync(`./${W_NAME}/build/buffer.mjs`, `${hdr(W_NAME)}
|
|
export { buffer, sizeCompressed, sizeUncompressed } from './buffer.js';
|
|
`);
|
|
|
|
const { compressed, sizeUncompressed } = getWasmBuffer();
|
|
|
|
fs.writeFileSync(`./${W_NAME}/build/buffer.js`, `${hdr(W_NAME)}
|
|
const sizeCompressed = ${compressed.length};
|
|
const sizeUncompressed = ${sizeUncompressed};
|
|
const buffer = Buffer.from('${compressed.toString('base64')}', 'base64');
|
|
|
|
module.exports = { buffer, sizeCompressed, sizeUncompressed };
|
|
`);
|