Use node-zopfli and build locally instructions

[arichiardi]

Two self-explanatory commits:

• Add requirements for building locally to HACKING.m

• Replace the deprecated node-zopfli-es with node-zopfli

  The former does not build with newer node/npm and the latter is
  recommended as replacement.

[jscheid]

Hey, thank you, I'll take a look at this soon.

I assume you're trying to build locally because you want to hack on it? That's cool and appreciated, but do note that I'm planning to put this project into maintenance mode soon - or maybe in a way it already is, in my mind. I'm working on a successor that I can reveal more about shortly, probably in a month's time or so.

PS: that new project will have a much less convoluted build 🙂

[arichiardi]

@jscheid no problem, can't wait for the new one to happen 😄

I am building locally because my emacs setup is using borg, which is basically cloning the repo locally.

[jscheid]

Oh. Have you considered to point it at our release branch? This is where MELPA picks up from.
https://github.com/jscheid/prettier.el/tree/release

[arichiardi]

Well I don't have much control on what branch I target - borg is doing it for me based on the registered one in Emacsmirror - I like this setup as it was very easy to hack on the project and provide this PR. This is indeed the very reason why I chose borg for package management 😄

[jscheid]

I'm going to dogfood #140 for a day or so before merging it, then I'll ask you to rebase your PR so that we can get clean CI build for it.

[jscheid]

@arichiardi done, would you mind rebasing?

[arichiardi]

@jscheid yep I can do that - done

[arichiardi]

@jscheid anything else I need for this one? I can maintain the branch going but it would be better to merge it in ;)

[jscheid]

@arichiardi all done now, thanks for your contribution!