@v4fire/core/build/tsnode.js

V4Fire core library

'use strict';
const tsNode = require('ts-node'),
  tsPaths = require('tsconfig-paths');
const path = require('upath'),
  Module = require('module');
let isInitialized = false;
module.exports = function initTsNode() {
  if (isInitialized) {
    return;
  }
  let tsConfig;
  try {
    tsConfig = require(path.join(process.cwd(), '/tsconfig.json'));
  } catch (err) {
    if (err.code === 'MODULE_NOT_FOUND') {
      throw new ReferenceError('No tsconfig.json found. Generate it with "node node_modules/@v4fire/core/build/tsconfig".');
    }
    throw err;
  }
  tsPaths.register({
    baseUrl: tsConfig.compilerOptions.baseUrl,
    paths: normalizePaths(tsConfig.compilerOptions.paths),
    addMatchAll: false
  });
  console.log('`Module._resolveFilename` will be locked and cannot be overwritten in the future');
  const resolver = Module['_resolveFilename'];
  Object.defineProperty(Module, '_resolveFilename', {
    get() {
      return resolver;
    },
    set() {}
  });
  tsNode.register({
    transpileOnly: true,
    compilerOptions: {
      module: 'commonjs',
      target: 'es2021'
    },
    ignore: [],
    swc: true
  });
  isInitialized = true;
};
function normalizePaths(pathsMap) {
  return Object.keys(pathsMap).reduce((acc, val) => {
    const paths = pathsMap[val];
    acc[val] = paths.map(pathEl => {
      const normalizedPath = path.normalize(pathEl),
        normalizedCwd = path.normalize(process.cwd());
      if (path.isAbsolute(normalizedPath)) {
        return normalizedPath.replace(normalizedCwd, '');
      }
      return normalizedPath;
    });
    return acc;
  }, {});
}
module.exports();