Add support for joining terminals

[alextegelid]

Resolves #66 and #9

Please note: This PR will introduce an error in TypeScript:

Property 'location' does not exist on type 'TerminalOptions'.ts(2339)

However, the code runs and I think the error is a problem with location not being specified in the type declaration for vscode. The location property is in the api docs here: https://code.visualstudio.com/api/references/vscode-api#TerminalOptions

The error can be silenced by adding //@ts-ignore to line 143 in run.ts but I'll leave that to the maintainers.

[alextegelid]

FYI: I've now realized that the TS error above will have to be silenced to be able to package the extension.

[JacobsonGal]

Bravo! When will it be ready?

[alextegelid]

It depends on when the maintainers will be able to merge this PR. I'm running the development version myself 😁

[JacobsonGal]

How can i do it as well?

[alextegelid]

You can clone my repo, install all dependencies with npm install and then build the extension following this documentation and finally install from the newly created .vsix file.

[alextegelid]

@fabiospampinato any thoughts on this so far?

[Akronae]

@alextegelid You should probably make a fork and publish it, looks like Fabio does not have the time to manage this extension anymore.
I'd gladly install yours!

[alextegelid]

I've got a fork right here:
https://github.com/alextegelid/vscode-terminals

But you'll have to build it yourself. See my comment above regarding building it.

[fabiospampinato]

It looks like the linked issues got closed already, so this PR should not be relevant anymore, sorry.