How to emit errors and fail production build if typescript compilation fails

[melink14]

I've been testing out snowpack for a bit and I was surpised about how simple I could get clean modern JS output from my TS project.

One thing that I can't figure out is that even though I've installed @snowpack/plugin-typescript as per the docs, I can't get any typechecking when running npx snowpack build. I also can't find any previous discussion or comment of this limitation so I assume I must have goofed my config somehow...

I do see typescript errors when running npx snowpack dev or even npx snowpack --watch and when using --verbose I see that there are no log lines from snowpack/plugin-typescript at all.

The reason this is needed is that in the presence of type errors, there's likely to be a bug in the final output and I'd like the build to fail fast in that case. (For example, as part of PR CI, a sucessful build run is required for merging)

/** @type {import('snowpack').SnowpackUserConfig} */
module.exports = {
  mount: {
    /* ... */
  },
  plugins: [
    [
      '@snowpack/plugin-typescript',
      { tsc: 'npx tsc', args: '--project ../tsconfig.json' },
    ],
  ],
  buildOptions: {
    out: 'dist',
    metaUrlPath: '.snowpack',
  },
  root: 'extension',
  testOptions: {
    files: ['**/test/**/*', '**/*_test.*'],
  },
};