nss-run/lib/internal/config.js

nss-run (not so simple run) is a very simplistic build tool.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = loadConfig;
var _promises = _interopRequireDefault(require("fs/promises"));
var _path = _interopRequireDefault(require("path"));
var _chalk = _interopRequireDefault(require("chalk"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
// eslint-disable-next-line no-underscore-dangle
let import_;
try {
  // Node < 13.3 doesn't support import() syntax.
  // eslint-disable-next-line global-require
  import_ = require('./import').default;
} catch (e) {/* empty */}
function assemblePath(fileName) {
  return _path.default.resolve('.', fileName);
}
async function fileExists(fileName) {
  try {
    await _promises.default.access(assemblePath(fileName), _promises.default.constants.R_OK);
    return true;
  } catch (ignored) {
    return false;
  }
}
function loadCjs(file) {
  // eslint-disable-next-line import/no-dynamic-require,global-require
  require(assemblePath(file));
}
async function loadMjs(file) {
  if (!import_) {
    throw new Error("Internal error: Native ECMAScript modules aren't supported" + ' by this platform.\n');
  }
  await import_(`file://${assemblePath(file)}`);
}
async function loadCjsThenMjs(file) {
  try {
    loadCjs(file);
  } catch (e) {
    await loadMjs(file);
  }
}
function loadBabelJs(file) {
  try {
    require(_path.default.resolve('.', 'node_modules', '@babel', 'register')); // eslint-disable-line global-require,import/no-dynamic-require
  } catch (ignored) {
    console.log(_chalk.default.red("Found '") + _chalk.default.cyan(file) + _chalk.default.red("' but can not find '") + _chalk.default.cyan('@babel/register') + _chalk.default.red("'. Make sure you add @babel/register to your projects dependencies!"));
    process.exit(-2);
  }
  loadCjs(file);
}
const CONFIG_FILENAMES = {
  'nss-runfile.js': loadCjsThenMjs,
  'nss-runfile.cjs': loadCjs,
  'nss-runfile.mjs': loadMjs,
  'nss-runfile.babel.js': loadBabelJs
};
async function loadConfig() {
  // eslint-disable-next-line no-restricted-syntax
  for (const [file, loader] of Object.entries(CONFIG_FILENAMES)) {
    // eslint-disable-next-line no-await-in-loop
    const exists = await fileExists(file);
    if (exists) {
      console.log(_chalk.default.blue("Detected '") + _chalk.default.cyan(file) + _chalk.default.blue("'..."));
      // eslint-disable-next-line no-await-in-loop
      await loader(file);
      return;
    }
  }
  console.log(_chalk.default.red("Could not find a '") + Object.keys(CONFIG_FILENAMES).map(f => _chalk.default.cyan(f)).join(_chalk.default.red("' or '")) + _chalk.default.red("' in the current folder."));
  process.exit(-1);
}