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Can Prune be used to build a bundle (as in a zip) for, say AWS Lambda, which includes only the dependencies (and not dev dependencies)? I've played around with

by renke1 4y ago

Can Prune be used to build a bundle (as in a zip) for, say AWS Lambda, which includes only the dependencies (and not dev dependencies)? I've played around with pnpm's deploy but it felt a bit lackluster. Especially talking about situation where one has a backend package and some shared package. The bundle should contain all dependencies (but not dev dependencies) of the backend package and shared package and of course the built shared package should also be include in the bundle's node_modules.

palmdeezy 4y ago
Yes! Prune then zip the output folder.
- nebezb 4y ago
  Kind of. Poster asked if you can prune only deps and exclude dev deps. That's currently unsupported: https://github.com/vercel/turbo/issues/1100 https://github.com/vercel/turbo/issues/1100
  - renke1 4y ago
    That's correct. However, I've tried to use prune now, not sure if I am using it correctly, but that's why I do: I build my packages regularly (not pruned), then I prune with scope "backend". Apparently the pruned directory contains node_modules with empty packages, not sure what reason is for that; I just ignored it. In the resulting directory I then run `pnpm install --prod`. Only the regular dependencies will be installed. I think this is enough for my usecase. I am not sure if prune is supposed to be used for this approach though.
moltar 4y ago
You can do that with esbuild. Just bundle the handler entry into a single file and esbuild will tree shake the cruft out. That's the approach taken by AWS CDK as well.
- renke1 4y ago
  Yeah, that always works, of course, even though you might want to externalize certain dependencies still. In this case I don't want to bundle the code (although I might end up doing that, anyway)
  - easton 4y ago
    You can give esbuild a list of dependencies that you want to be external and it won’t bundle them, I’ve done it with the AWS SDK and it works as expected.

by renke1 4y ago

palmdeezy 4y ago

Yes! Prune then zip the output folder.

nebezb 4y ago
Kind of. Poster asked if you can prune only deps and exclude dev deps. That's currently unsupported: https://github.com/vercel/turbo/issues/1100 https://github.com/vercel/turbo/issues/1100
- renke1 4y ago
  That's correct. However, I've tried to use prune now, not sure if I am using it correctly, but that's why I do: I build my packages regularly (not pruned), then I prune with scope "backend". Apparently the pruned directory contains node_modules with empty packages, not sure what reason is for that; I just ignored it. In the resulting directory I then run `pnpm install --prod`. Only the regular dependencies will be installed. I think this is enough for my usecase. I am not sure if prune is supposed to be used for this approach though.

moltar 4y ago

You can do that with esbuild. Just bundle the handler entry into a single file and esbuild will tree shake the cruft out. That's the approach taken by AWS CDK as well.

renke1 4y ago
Yeah, that always works, of course, even though you might want to externalize certain dependencies still. In this case I don't want to bundle the code (although I might end up doing that, anyway)
- easton 4y ago
  You can give esbuild a list of dependencies that you want to be external and it won’t bundle them, I’ve done it with the AWS SDK and it works as expected.