@node-kit/yarn-workspace-root/dist/index.esm-bundler.js

A simple utility to get the yarn workspace root

import { normalize, join, relative, dirname } from 'path';
import { readJSONSync, getRealPathSync, readJSON, getRealPath } from '@node-kit/extra.fs';
import micromatch from 'micromatch';

function asyncGeneratorStep(n, t, e, r, o, a, c) {
  try {
    var i = n[a](c),
      u = i.value;
  } catch (n) {
    return void e(n);
  }
  i.done ? t(u) : Promise.resolve(u).then(r, o);
}
function _asyncToGenerator(n) {
  return function () {
    var t = this,
      e = arguments;
    return new Promise(function (r, o) {
      var a = n.apply(t, e);
      function _next(n) {
        asyncGeneratorStep(a, r, o, _next, _throw, "next", n);
      }
      function _throw(n) {
        asyncGeneratorStep(a, r, o, _next, _throw, "throw", n);
      }
      _next(void 0);
    });
  };
}

function yarnWorkspaceRoot() {
  return _yarnWorkspaceRoot.apply(this, arguments);
}
function _yarnWorkspaceRoot() {
  _yarnWorkspaceRoot = _asyncToGenerator(function* () {
    var cwd = arguments.length > 0 && arguments[0] !== void 0 ? arguments[0] : process.cwd();
    var previous = null, current = normalize(cwd);
    do {
      var manifest = yield readJSON(join(current, "package.json"));
      var workspaces = extractWorkspaces(manifest);
      if (workspaces) {
        var relativePath = relative(current, yield getRealPath(cwd));
        if (relativePath === "" || micromatch([relativePath], workspaces).length > 0) {
          return current;
        } else {
          return null;
        }
      }
      previous = current;
      current = dirname(current);
    } while (current !== previous);
    return null;
  });
  return _yarnWorkspaceRoot.apply(this, arguments);
}
function yarnWorkspaceRootSync() {
  var cwd = arguments.length > 0 && arguments[0] !== void 0 ? arguments[0] : process.cwd();
  var previous = null, current = normalize(cwd);
  do {
    var manifest = readJSONSync(join(current, "package.json"));
    var workspaces = extractWorkspaces(manifest);
    if (workspaces) {
      var relativePath = relative(current, getRealPathSync(cwd));
      if (relativePath === "" || micromatch([relativePath], workspaces).length > 0) {
        return current;
      } else {
        return null;
      }
    }
    previous = current;
    current = dirname(current);
  } while (current !== previous);
  return null;
}
function extractWorkspaces(manifest) {
  var workspaces = (manifest || {}).workspaces;
  return workspaces && workspaces.packages || (Array.isArray(workspaces) ? workspaces : null);
}

export { yarnWorkspaceRoot, yarnWorkspaceRootSync };