process.env is undefined and causes application-crashing error in non-node runtime

[AsukaCHikaru]

Environment

• wyw-in-js version: 0.5.3 (@linaria/[email protected])
• Bundler (+ version): [email protected]
• Node.js version: Deno 1.44.4
• OS: MacOS 13.4, Apple silicon

Description

In a non-node environment, process.env is undefined thus causing packages/shared/src/findPackageJSON.ts L13 to throw an undefined error which leads to the application crashing.

import { dirname, isAbsolute } from 'path';
import * as process from 'process';

import findUp from 'find-up';

const cache = new Map<string, string | undefined>();

export function findPackageJSON(
  pkgName: string,
  filename: string | null | undefined
) {
  // Jest's resolver does not work properly with `moduleNameMapper` when `paths` are defined
  const isJest = Boolean(process.env.JEST_WORKER_ID);
  ...

Reproducible Demo

https://github.com/AsukaCHikaru/wyw-in-js-vite-env-issue

[AsukaCHikaru]

solved in #93