@nori-zk/o1js-zk-utils/build/bin/bakeVkHashes.js

o1js-zk-utils supporting Nori Bridge

import { Logger, LogPrinter } from 'esm-iso-logger';
import { resolve } from 'path';
import { Cache } from 'o1js';
import { randomBytes } from 'crypto';
import { mkdirSync, rmSync, writeFileSync } from 'fs';
import { EthVerifier } from '../ethVerifier.js';
import { rootDir } from '../rootDir.js';
new LogPrinter('O1JsZkUtils');
const logger = new Logger('CompileZksAndBakeVkHashes');
function writeSuccessDetailsToJsonFiles(ethVerifierVkHash) {
    // Write vks
    const ethVerifierVkHashFileOutputPath = resolve(rootDir, '..', 'src', 'integrity', 'EthVerifier.VkHash.json');
    logger.log(`Writing vks hashes to '${ethVerifierVkHashFileOutputPath}'`);
    writeFileSync(ethVerifierVkHashFileOutputPath, `"${ethVerifierVkHash}"`, 'utf8');
    logger.log(`Wrote vks hashes to '${ethVerifierVkHashFileOutputPath}' successfully.`);
}
const ephemeralCacheDir = resolve(rootDir, randomBytes(20).toString('base64').replace(/[+/=]/g, ''));
async function main() {
    // Create a temporary folder to compile the cache to, this is nessesary as the forceRecompile option
    // seems to be ignored.
    mkdirSync(ephemeralCacheDir, { recursive: true });
    logger.log(`Created an ephemeral build cache directory for eth programs '${ephemeralCacheDir}'`);
    const verifierMethodsAnalysis = await EthVerifier.analyzeMethods();
    logger.log(
    //prettier-ignore
    `EthVerifier analyze methods gates length '${verifierMethodsAnalysis.compute.gates.length}'.`);
    // Compile verifier
    logger.log('Compiling EthVerifier.');
    const vk = (await EthVerifier.compile({
        cache: Cache.FileSystem(ephemeralCacheDir),
        forceRecompile: true,
    })).verificationKey;
    const ethVerifierVkHash = vk.hash.toString();
    logger.log(`EthVerifier contract compiled vk: '${ethVerifierVkHash}'.`);
    rmSync(ephemeralCacheDir, { recursive: true });
    writeSuccessDetailsToJsonFiles(ethVerifierVkHash);
}
main().catch((err) => {
    logger.fatal(`Main function had an error:\n${String(err.stack)}`);
    rmSync(ephemeralCacheDir, { recursive: true });
    process.exit(1);
});
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