Check for a post-process script

As discussed outside of this issue, a post-process script could be useful to fix style issues with eslint --fix and perhaps do other things in the future. We could also use this script to do an initial npm install for users. Here’s how it might be implemented:

1. Directly after template files are generated, check for a post-process.js file in a template. (Not sure what the exact name or format should be.)
2. If it exists, run the script with the project root as the working directory.

(cc @LinusBorg, who started the discussion resulting in this issue)

[posva]

Okay, I didn’t understand that at the beginning. You convinced me too 👌

On Thu, 15 Sep 2016, 15:22 Chris Fritz, [e-mail] wrote:

@posva https://github.com/posva Yeah, but since they can already generate unsafe templates in general (see the explanation to Linus), users won’t be any less safe than they used to be. Installing a template from someone simply requires some trust. Does that make sense?

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[LinusBorg]

@chrisvfritz Ok, you have me convinced. 😃