Add initial Smithy support

[zetashift]

Adds syntax highlighting support for https://smithy.io/2.0/index.html a meta-modeling language to describe APIs.

LSP: https://github.com/disneystreaming/smithy-language-server
Treesitter grammar: https://github.com/indoorvivants/tree-sitter-smithy

[the-mikedavis]

Thanks! Could you add a note about coursier to the language server wiki? https://github.com/helix-editor/helix/wiki/How-to-install-the-default-language-servers

[zetashift]

Thanks! Could you add a note about coursier to the language server wiki? https://github.com/helix-editor/helix/wiki/How-to-install-the-default-language-servers

Thank you! Added a small section: https://github.com/helix-editor/helix/wiki/How-to-install-the-default-language-servers#smithy-language-server

[mtdowling]

This is awesome @zetashift. Any reason you used the Disney version instead of the version maintained by AWS? The AWS version has additional fixes like not crashing if there isn't a smithy-build.json file. It can also be installed through Coursier (via their contrib channel) using:

cs launch --contrib smithy-language-server -- 0

[zetashift]

This is awesome @zetashift. Any reason you used the Disney version instead of the version maintained by AWS?

Hi @mtdowling! At first I wanted to use the version maintained by AWS, but when I was looking at what neovim's mason plugin does: https://github.com/mason-org/mason-registry/pull/148/files#diff-842575865783293dbaedbb7d5de0a10794860d0a04d6e26acd437927d206baae I kinda got scared and just went with Disney's, because that one has a simple coursier install command, and I am more familiar with Scala.

But able to use coursier for the AWS one changes things quite a lot for me... :P.

How about I make a new PR that uses the LS of AWS and coursier?

EDIT: or if you know of better "run the LS" programs/commands I can look into that too, I just made this PR on whatever got me up and running the quickest

[mtdowling]

Yeah a PR to use the AWS version would be awesome!

or if you know of better "run the LS" programs/commands I can look into that too, I just made this PR on whatever got me up and running the quickest

For now, using cs launch --contrib smithy-language-server -- 0 seems like the right approach. We might figure out a better way in the future to do something more self contained, but don't have that yet.

[zetashift]

Yeah a PR to use the AWS version would be awesome!

Thank you for the coursier tip, the PR is up: #6370 (comment)