Initial support for metals status bar

[ayoub-benali]

Support metals/status but given sublime API limitation unfortunately tooltip and command can't be handled.

Having a dedicated plugin for Metals should allows us to simply the installation.
Manually trigger build import, Tweaking Sublime Text for a better productivity and key mappings should work out of the box.

And we can further handle other custom endpoints

[olafurpg]

This is exciting! Do you think it would be possible to automatically launch the metals-sublime binary by embedding coursier? It would be nice to bring the installation experience closer to vs code

[ayoub-benali]

Do you think it would be possible to automatically launch the metals-sublime binary by embedding coursier?

You mean the plugin would install/update the server when missing ?
I think we need to tweak the LSP package first.
@tomv564 Do you think we can do this within LanguageHandler ?

[olafurpg]

I mean it would be nice if users didn't have to manually run the coursier bootstrap ... command themselves and add the metals-sublime binary to the PATH. I'm curious if the Metals Sublime package could automatically handle this step on behalf of users, similarly to the Metals VS Code plugin https://github.com/scalameta/metals-vscode/blob/a4ae172b7e87c22cdfa1d27291f7b3e8c9dde4e1/src/extension.ts#L82

It's a bit tricky to get the Java Home directory, custom JVM flags and system properties right but I believe it contributes to a nice out-of-the-box experience :) Either way, this is definitely not blocking this PR, having metals/status working is already a huge UX improvement!

[tomv564]

@ayoub-benali: I did some work earlier with a LanguageHandler that bundles coursier to automate the setup steps for dotty: https://github.com/tomv564/LSP-dotty/

Nice work!

[ayoub-benali]

this is great thanks !