build-preview.js

const { execSync } = require('child_process');
const path = require('path');
const NodeGit = require('nodegit');
const fs = require('fs-extra');

if (!process.env.GITHUB_TOKEN) {
  console.error('GITHUB_TOKEN not provided as an environment property');
  return 1;
}

const url = 'https://github.com/vaadin/docs-app.git';
const localPath = path.join(__dirname, 'docs-app');
const opts = {
  checkoutBranch: 'master',
  fetchOpts: {
    callbacks: {
      certificateCheck: function () {
        return 0;
      },
      credentials: function (args) {
        return NodeGit.Cred.userpassPlaintextNew(process.env.GITHUB_TOKEN, 'x-oauth-basic');
      },
    },
  },
};

// Cleanup
fs.rmdirSync(localPath, { recursive: true });

console.info('Cloning docs-app...');

const clonePromise = new Promise((resolve, reject) => {
  const clone = NodeGit.Clone(url, localPath, opts);
  clone
    .catch((e) => {
      reject(e);
    })
    .then(() => {
      resolve();
    });
});

clonePromise
  .then(() => {
    console.log('Installing docs-app dependencies...');
    execSync('npm ci --only=production', { cwd: './docs-app', stdio: 'inherit' });

    console.log('Prepare content...');
    execSync(
      './scripts/mvnw -B --no-transfer-progress compile vaadin:prepare-frontend vaadin:build-frontend',
      { cwd: '../', stdio: 'inherit' }
    );

    // console.log('Run lint...');
    // execSync('npm run lint', { cwd: '../', stdio: 'inherit' });

    console.log('Building documentation site...');
    execSync('DOCS_CONTENT_ROOT=../../ npm run build', { cwd: './docs-app', stdio: 'inherit' });
  })
  .catch(() => {
    process.exit(1);
  });