build.js

const fs = require('fs');
const path = require('path');
const packageJson = require('./package.json');

function copyFileSync(source, target) {
  let targetFile = target;

  // If target is a directory, a new file with the same name will be created
  if (fs.existsSync(target)) {
    if (fs.lstatSync(target).isDirectory()) {
      targetFile = path.join(target, path.basename(source));
    }
  }

  fs.writeFileSync(targetFile, fs.readFileSync(source));
}

function removeDistPackageJson(source) {
  try {
    if (fs.existsSync(source)) {
      fs.unlinkSync(source);
    }
    //file removed
  } catch (err) {
    console.error(err);
  }
}

function writeSdkJson(path) {
  try {
    const version = packageJson.version;
    const milvusVersion = packageJson.milvusVersion;

    const content = {
      version,
      milvusVersion,
    };
    let data = JSON.stringify(content);
    fs.writeFileSync(path, data);
  } catch (err) {
    throw new Error(err);
  }
}

// if dist has package.json need delete it.
// otherwise npm publish will use package.json inside dist then will missing files.
removeDistPackageJson('./dist/package.json');

// Because of we dont need package.json in dist folder, so we can write sdk info into sdk.json file.
writeSdkJson('./dist/sdk.json');