create-nodejs-express-project/src/main.js

A CLI for generating a new express project with the MVC structure

import chalk from "chalk";
import fs from "fs";
import ncp from "ncp";
import path from "path";
import { promisify } from "util";
import { execa } from "execa";
import Listr from "listr";
import { projectInstall } from "pkg-install";

const access = promisify(fs.access);
const copy = promisify(ncp);

async function copyTemplateFiles(options) {
  return copy(options.templateDirectory, options.targetDirectory, {
    clobber: false,
  });
}

async function initGit(options) {
  const result = await execa("git", ["init"], {
    cwd: options.targetDirectory,
  });
  if (result.failed) {
    return Promise.reject(new Error("unable  to initialize git"));
  }
  return;
}

export async function createProject(options) {
  options = {
    ...options,
    targetDirectory: options.targetDirectory || process.cwd(),
  };

  const templateDir = path.resolve(
    new URL(import.meta.url).pathname,
    "../../templates",
    options.template
  );
  options.templateDirectory = templateDir;

  try {
    await access(templateDir, fs.constants.R_OK);
  } catch (err) {
    console.error("%s Invalid template name", chalk.red.bold("ERROR"));
    process.exit(1);
  }

  const tasks = new Listr([
    {
      title: "Copy project files",
      task: () => copyTemplateFiles(options),
    },
    {
      title: "Initialize git",
      task: () => initGit(options),
      enabled: () => options.git,
    },
    {
      title: "Install dependencies",
      task: () =>
        projectInstall({
          cwd: options.targetDirectory,
        }),
      skip: () =>
        !options.runInstall
          ? "Pass --install to automatically install dependencies"
          : undefined,
    },
  ]);

  await tasks.run();
  console.log("%s Project ready", chalk.green.bold("DONE"));
  return true;
}