Build to commonjs

[Fractal-Tess]

Hey there,

I was on an adventure to make myself a svelte-kit electron app, and while browsing premade templates, I noticed that all of them are using the static adapter. That makes no sense to me, electron ships a node + chromium runtime, so why not just simply use the node adapter? Well turns out It's impossible to import the esm modules produced by the svelte-kit(now vite) build command into electron (since electron uses only commonjs). I tried some stupid stuff with esbuild and tsc to convert the esm files into commonjs, but I'm unable to produce a working solution.

Any advice?

[Fractal-Tess]

Solved this thanks to GHOST.

The solution is to esbuild the handler.js output file of vite build when using adapter node.
Here is the script

const esbuild = require('esbuild');
const join = require('path').join;

esbuild.build({
  entryPoints: [join(__dirname, '../build/svelte/handler.js')],
  outfile: join(__dirname, '../build/svelte/handler.cjs'),
  platform: 'node',
  format: 'cjs',
  bundle: true,
  define: {
    'import.meta.url': 'importMetaUrl'
  },
  inject: [join(__dirname, './shims.js')]
});

And here is the injected shim.js file

export const importMetaUrl = /* @__PURE__ */ new URL(
  'file:' + __filename
).href;