svelte.config.js

import adapter from '@sveltejs/adapter-static';
import { vitePreprocess } from "@sveltejs/kit/vite";

function getBasePath() {
  if (process.argv.includes('dev')) {
    console.log("dev argument passed");
    return ''
  } else {
    console.log("no argument passed");
    return process.env.BASE_PATH
  }
}

/** @type {import('@sveltejs/kit').Config} */
const config = {
  // Consult https://kit.svelte.dev/docs/integrations#preprocessors
  // for more information about preprocessors
  preprocess: [vitePreprocess({})],

  kit: {
    // adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.
    // If your environment is not supported or you settled on a specific environment, switch out the adapter.
    // See https://kit.svelte.dev/docs/adapters for more information about adapters.
    adapter: adapter({
      // default options are shown. On some platforms
      // these options are set automatically — see below
      pages: 'build',
      assets: 'build',
      fallback: undefined,
      precompress: false,
      strict: true
    }),
    paths: {
      // base: getBasePath(),
    }
  },
};

export default config;