Refactor | Divide the code into functions

[MatiasOlivera]

Is your feature request related to a problem?
I was reading the source code and I think is a little difficult to follow for newcomers because it follows an imperative way instead of a declarative approach. The index.js file has 500 lines of code, it could be more manageable if it will be smaller.

Describe the solution you'd like

• Move the code into different functions
• Avoid changing the options object directly
• Move related functions to new files (maybe)
• Move plugins to its own directory (maybe)

It will be necessary making several pull requests to make it more easily to review and discuss the changes.

What do you think?

[marvinhagemeister]

That's a great idea! Feel free to make a PR 👍

[MatiasOlivera]

I want to move the plugins to a directory:

1. Move createConfig() to its own file because it has +250 lines. The filename could be create-config.js
2. Create the plugins directory
3. Move each plugin config and its imports to its own file. IMHO I think this will allow managing the dependencies more easily. The filename could be the language name instead of the transpiler name to hide the implementation. Eg: javascript instead of babel.
4. Import the plugins from createConfig()

The project stucture could be:

/src
  index.js
  create-config.js
  /plugins
      javascript.js
      typescript.js

Thoughts?

@developit @marvinhagemeister @ForsakenHarmony @Andarist

[Andarist]

1. sounds good
2-4. would like to see how it would look like first, so preferably would be done in separate PR (truth to be told I don't like this, but I'm open minded 😉 )

Rollup plugins configs are rather short, so I don't quite see the value of moving them out from the createConfig. IMHO it would just require more file jumping to see what is happening and how things are configured.

[marvinhagemeister]

1. sound good for me too 👍
   2.-4. Agree with @Andarist here. I think we won't gain much by moving it into functions for the same reason @Andarist listed.

[MatiasOlivera]

I will make a PR for the first. And about the other changes, the reasons both of you said are good ones and make sense to me.