How to add a package but only if it is not already there?

[non-Jedi]

@ffevotte

Not sure if it’s useful / clean, but I have this function in some scripts that I use to setup new environments:

This is more or less what I ended up doing.

Using LanguageServer.jl with eglot in emacs

LanguageServer.jl eglot integration is now packaged up at https://github.com/non-Jedi/jleglot and I just created a pending PR to melpa at https://github.com/melpa/melpa/pull/6531. Hope it’s helpful to y’all. For anyone wondering how I ended up making sure the project was instantiated, I stole a page from the Revise playbook: try @eval using LanguageServer catch @warn "Unable to import LanguageServer. Instantiating project." Pkg.instantiate() @eval using LanguageS…