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lsp-julia

Julia support for the =lsp-mode= package using the LanguageServer.jl package. For information on the features lsp-mode provides see their git repository.

Julia version 1.7 or higher has to be in your path

This package is still under development.

Installation

Installing the Julia Language Server

Included Language Server

lsp-julia installs LanguageServer.jl by default.

Change Language Server version

By default the newest Version of LanguageServer.jl is installed. To Change the version, open Julia and initiate the Environment in the subdirectory languageserver from the installation directory of lsp-julia. Then use Julia’s Pkg to change the installed version.

Using a Compiled LanguageServer.jl Image

Add the following to you config:

(setq lsp-julia-package-dir nil)
(setq lsp-julia-flags `("-J/path/to/languageserver.so"))
;; (require 'lsp-julia) must come after this!

Additionally because JIT compilation of LanguageServer.jl can cause a long delay which may cause issues with lsp-mode, I recommend using PackageCompiler.jl to AOT compile LanguageServer.jl into your julia image. Something like:

julia> using Pkg
julia> Pkg.add("PackageCompiler")
julia> using PackageCompiler
julia> create_sysimage(:LanguageServer, sysimage_path="/path/to/languageserver.so")

See the documentation on PackageCompiler.jl for further usage details.

Installing lsp-julia

quelpa

It’s currently easiest to install this package with quelpa. I’ll see about getting this added to melpa soon enough.

(quelpa '(lsp-julia :fetcher github
                    :repo "gdkrmr/lsp-julia"
                    :files (:defaults "languageserver")))

use-package

(use-package lsp-julia
  :config
  (setq lsp-julia-default-environment "~/.julia/environments/v1.7"))

Using lsp-julia with a julia major mode

After installing the major mode of your choice for editing Julia files (julia-mode, ess, etc.), add 'lsp-mode to the hook for that major mode. For example, to use lsp-julia with ess, add the following to your .emacs file:

(add-hook 'ess-julia-mode-hook #'lsp-mode)

Please don’t hesitate to open an issue in case of problems or create a PR.

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