create-app.ts

/* eslint-disable import/no-extraneous-dependencies */
import chalk from "chalk";
import path from "path";
import { RepoInfo } from "./helpers/examples";
import { makeDir } from "./helpers/make-dir";
import { tryGitInit } from "./helpers/git";

import { isFolderEmpty } from "./helpers/is-folder-empty";
import { getOnline } from "./helpers/is-online";
import { isWriteable } from "./helpers/is-writeable";
import type { PackageManager } from "./helpers/get-pkg-manager";

import { installTemplate, TemplateMode, TemplateType } from "./templates";

export class DownloadError extends Error {}

export async function createApp({
  appPath,
  packageManager,
  example,
  examplePath,
  typescript,
  eslint,
  experimentalApp,
  organizationName
}: {
  appPath: string;
  packageManager: PackageManager;
  example?: string;
  examplePath?: string;
  typescript: boolean;
  eslint: boolean;
  experimentalApp: boolean;
  organizationName: string;
}): Promise<void> {
  let repoInfo: RepoInfo | undefined;
  const mode: TemplateMode = typescript ? "ts" : "js";
  const template: TemplateType = experimentalApp ? "app" : "default";

  const root = path.resolve(appPath);

  if (!(await isWriteable(path.dirname(root)))) {
    console.error(
      "The application path is not writable, please check folder permissions and try again.",
    );
    console.error(
      "It is likely you do not have write permissions for this folder.",
    );
    process.exit(1);
  }

  const appName = path.basename(root);

  await makeDir(root);
  if (!isFolderEmpty(root, appName)) {
    process.exit(1);
  }

  const useYarn = packageManager === "yarn";
  const isOnline = !useYarn || (await getOnline());
  const originalDirectory = process.cwd();

  console.log(`Creating a new EventCatalog in ${chalk.green(root)}.`);
  console.log();

  process.chdir(root);

  let hasPackageJson = false;

  /**
   * If an example repository is not provided for cloning, proceed
   * by installing from a template.
   */
  await installTemplate({
    appName,
    root,
    template,
    mode,
    packageManager,
    isOnline,
    eslint,
    organizationName
  });
  // }

  if (tryGitInit(root)) {
    console.log("Initialized a git repository.");
    console.log();
  }

  let cdpath: string;
  if (path.join(originalDirectory, appName) === appPath) {
    cdpath = appName;
  } else {
    cdpath = appPath;
  }

  console.log(`${chalk.green("Success!")} Created ${appName} at ${appPath}`);

  if (hasPackageJson) {
    console.log("Inside that directory, you can run several commands:");
    console.log();
    console.log(chalk.cyan(`  ${packageManager} ${useYarn ? "" : "run "}dev`));
    console.log("    Starts the development server.");
    console.log();
    console.log(
      chalk.cyan(`  ${packageManager} ${useYarn ? "" : "run "}build`),
    );
    console.log("    Builds the app for production.");
    console.log();
    console.log(chalk.cyan(`  ${packageManager} start`));
    console.log("    Runs the built app in production mode.");
    console.log();
    console.log("We suggest that you begin by typing:");
    console.log();
    console.log(chalk.cyan("  cd"), cdpath);
    console.log(
      `  ${chalk.cyan(`${packageManager} ${useYarn ? "" : "run "}dev`)}`,
    );
  }
  console.log();
}