Hybrid NPM Module for ESM and CommonJS

[BruceMacD]

Update the library to allow the NPM module to be used in both ESM and CommonJS.

This javascript library previously targeted ES modules. This means modern ES projects could use the library but requiring the library in CommonJS would error. This change to the build allows the same library to be used in both ES modules and CommonJS.

ESM:

import { Ollama } from "ollama";

CJS:

const { Ollama } = require("ollama");

[saul-jb]

I am leaning against merging this one - this is a chunk of complexity added just to support a legacy module system. If someone still wants to write a package or add it to an existing one in cjs, they can use the import() function, essentially moving the burden of complexity to their end.

@jmorganca have you got a preference here?

[jmorganca]

I think we can hold off and leave this PR open for now until there's a few requests for it

[danny-avila]

I don't think CJS adds a ton of complexity if it's just a compiling step?

Would love to see this PR merged. Over 70% of all popular packages are written in it, and it's not going away: https://bun.sh/blog/commonjs-is-not-going-away

[saul-jb]

@BruceMacD Just coming back to this and it seems like CJS is still more used than I anticipated (still not sure why there are so many new projects that are using CJS instead of ESM but that is another discussion), if you still think this should be implemented don't let me hold this up, there are a couple other PRs related to this as referenced.

References:

• not compatible with CJS module #44
• Fix for Issues #44 & 55 - Support for CJS #60
• build: add cjs compatibility #61