generateTypechain.js

/* eslint-disable @typescript-eslint/no-require-imports */

const fs = require('fs');
const path = require('path');

const typechainPath = path.join(__dirname, 'node_modules/typechain');

const areDevDependenciesOmitted = () => {
  const omittedDependencies = new Set(
    (process.env.npm_config_omit || '')
      .split(/[,\s]+/)
      .filter((value) => value !== ''),
  );

  return omittedDependencies.has('dev');
};

if (!fs.existsSync(typechainPath)) {
  const message = 'Missing typechain generation dependency: typechain';

  if (areDevDependenciesOmitted()) {
    console.warn(
      `${message}; skipping typechain generation because dev dependencies were omitted.`,
    );
    return;
  }

  throw new Error(message);
}

const { runTypeChain } = require('typechain');

const cwd = process.cwd();
const outDir = 'lib/wallet/ethereum/typechain';
const files = [
  'node_modules/boltz-core/out/ERC20.sol/ERC20.json',
  'node_modules/boltz-core/out/ERC20Swap.sol/ERC20Swap.json',
  'node_modules/boltz-core/out/EtherSwap.sol/EtherSwap.json',
].map((f) => path.resolve(cwd, f));

runTypeChain({
  cwd,
  filesToProcess: files,
  allFiles: files,
  outDir,
  target: 'ethers-v6',
})
  .then((res) => {
    console.log(`Generated ${res.filesGenerated} typechain files in ${outDir}`);
  })
  .catch((err) => {
    throw err;
  });