eslint-import-resolver-typescript/index.js

const resolve = require('resolve');
const path = require('path');

function opts(file, config) {
  return Object.assign(
    { extensions: ['.ts', '.tsx', '.d.ts'] },
    config,
    // path.resolve will handle paths relative to CWD
    { basedir: path.dirname(path.resolve(file)) }
  );
}

module.exports = {
  interfaceVersion: 2,
  resolve: function(source, file, config) {
    if (resolve.isCore(source)) {
      return { found: true, path: null };
    }

    try {
      return { found: true, path: resolve.sync(source, opts(file, config)) };
    } catch (err) {
      return { found: false };
    }
  },
};