es-node-runner/lib/utils/resolveNodeModulePaths.js

Node runner that transpiles typescript or es modules using blazing fast ⚡ esbuild and restarts the process automatically on change. Suitable for node development server.

import {relative} from 'path';
function getParentDir(cwd) {
  return cwd.substring(0, cwd.search(/[\\/]/) + 1);
}
function rootLevelFromCWD(str) {
  const strLen = str.length;
  let level = 0,
    i = 0;
  while (i < strLen) {
    if (str[i] + str[i + 1] === '..') {
      level += 1;
      i += 3;
    } else i += 1;
  }
  return level;
}
function resolveNodeModulePaths() {
  const cwd = process.cwd();
  let nodeModuleDir = `node_modules/*`,
    level = 0;
  const depth = rootLevelFromCWD(
    relative(cwd, process.env.PROJECT_CWD ?? getParentDir(cwd))
  );
  const nodeModulePaths = [`./${nodeModuleDir}`];
  while (level < depth) {
    nodeModuleDir = '../' + nodeModuleDir;
    nodeModulePaths.push(nodeModuleDir);
    level++;
  }
  return nodeModulePaths;
}
export default resolveNodeModulePaths;