support fish shell

[skyfaller]

What would be required to support fish?

I would like to add fish completions to Caddy. Since they are using completely to generate their shell completion scripts, it appears that I need to add fish support to completely.

I have no Javascript experience, but I have been tinkering with fish, so I might be able to help a bit.

[fvictorio]

Hi @skyfaller!

So, the idea of completely is to have a separate package for each shell. So the first step would be to add a fish-generator package.

Then you need to create a template.fish with the template for the completion script. (I don't know anything about how fish completion works, so I'm assuming that generating a file will be enough; let me know if that's not the case.) The templates use handlebars.

If you give me a very minimal example of a fish completion I can generate the boilerplate and push it to a branch and you can take it from there. For example, just a completion script for the example in the readme: a my-command command with a single positional arg draw and then a --color flag that can be either blue, green or red.

I also really need to write some documentation on how to setup the project for contributing. It's not that hard but there are some necessary steps that need to be done.