init.js

import path from 'node:path';
import fs from 'fs/promises';
import inquirer from 'inquirer';
import _ from 'lodash';
import { replaceInFileSync } from 'replace-in-file';

const SEMVER_PATTERN =
  /(?<=^v?|\sv?)(?:(?:0|[1-9]\d{0,9}?)\.){2}(?:0|[1-9]\d{0,9})(?:-(?:--+)?(?:0|[1-9]\d*|\d*[a-z]+\d*)){0,100}(?=$| |\+|\.)(?:(?<=-\S+)(?:\.(?:--?|[\da-z-]*[a-z-]\d*|0|[1-9]\d*)){1,100}?)?(?!\.)(?:\+(?:[\da-z]\.?-?){1,100}?(?!\w))?(?!\+)/gi;

const currentPath = process.cwd().split(path.sep);
const currentDirectoryName = currentPath[currentPath.length - 1];

const questions = [
  {
    type: 'input',
    name: 'packageName',
    message: 'Package name (package.json)',
    default: () => currentDirectoryName,
    validate: value => {
      if (!value) {
        return 'Enter a package name';
      }
      if (
        !value.match(
          /^(?:@[a-z0-9-*~][a-z0-9-*._~]*\/)?[a-z0-9-~][a-z0-9-._~]*$/,
        )
      ) {
        return 'Incorrect package name';
      }
      if (value.length > 214) {
        return 'Package name is too long';
      }
      return true;
    },
  },
  {
    type: 'input',
    name: 'pageTitleHtml',
    message: 'App title (HTML title tag)',
    default: ({ packageName }) => _.startCase(packageName),
  },
  {
    type: 'input',
    name: 'pageTitleLayout',
    message: 'App title (app layout)',
    default: ({ pageTitleHtml }) => pageTitleHtml,
  },
  {
    type: 'input',
    name: 'dockerContainerName',
    message: 'Docker container name',
    default: ({ packageName }) => packageName,
  },
  {
    type: 'input',
    name: 'dockerImageName',
    message: 'Docker image name',
    default: ({ dockerContainerName }) =>
      `registry.gitlab.com/${dockerContainerName}/${dockerContainerName}:latest`,
  },
  {
    type: 'input',
    name: 'version',
    message: 'Version (package.json)',
    validate: value => {
      if (value.match(SEMVER_PATTERN)) {
        return true;
      }

      return 'Enter a valid version number (e.g. 1.0.0, 1.0.0-alpha.1)';
    },
    default: () => '1.0.0',
  },
  {
    type: 'confirm',
    name: 'createDotEnv',
    message: 'Create .env file?',
    default: () => true,
  },
];

(async () => {
  const answers = await inquirer.prompt(questions);

  if (answers.createDotEnv) {
    await fs.cp('./.env.example', './.env');
  }
  const results = replaceInFileSync({
    files: [
      'package.json',
      'index.html',
      'src/client/platform/layout/HeaderMenu.tsx',
      'docker-compose.prod.yaml',
    ],
    processor: input => _.template(input)(answers),
  });

  const filesUpdated = results.filter(result => result.hasChanged);
  console.log(`${filesUpdated.length || 0} files updated:`);
  console.log(
    results
      .filter(result => result.hasChanged)
      .map(result => `    \x1b[32m ${result.file} \x1b[0m`)
      .join('\n'),
  );
  console.log(
    answers.createDotEnv ? 'Created .env file' : '.env file not created',
  );
})();