I am on vanilla emacs and doom theme too.
I think, tree-sitter and the original elixir-mode were conflicting with each other.
This helped replace elixir-mode with elixir-ts-mode and fix things.
(setq major-mode-remap-alist
'((yaml-mode . yaml-ts-mode)
(elixir-mode . elixir-ts-mode)))
The first time you connect to the LSP server it can take several minutes to build the .elixir_ls file in your project root.
Usually if you have problems with LSP the first thing to do is delete that .elixir_ls file and then connect to the LSP server, so that it will build that file again from scratch.
Also, recent versions of Emacs comes with Eglot included so I use that to connect to the LSP server. This is what I have in my init.el …
;; elixir-mode, elixir-ts-mode, heex-ts-mode
;; are setup in the eglot-server-programs variable to look for
;; language_server.sh
;; so just add that to the path in ~/.profile using...
;; PATH="/opt/elixir-ls/release:$PATH"
(require 'eglot)
(add-hook 'elixir-ts-mode-hook 'eglot-ensure)
The only other thing I can think of is to do a refresh install of the LSP server using an up-to-date version of Elixir.
Are you able to paste the output from your lsp-log buffer?
Use M-x to find a command like lsp-workspace-show-log and paste that output here.
Sometimes you might need to specify directories to ignore. Search this forum for “lsp-file-watch-ignored” to see this.
Hi there. I’m getting close to being 100% happy with my emacs setup for Elixir except for two things, and I thought this might be the thread to finally address those things.
I appreciate any insights!
First is how heex files are handled. Just want to check if that’s everyone’s situation: via heex-ts-mode the major mode is set to HEEx, which I understand is a child-mode of web mode. The syntax highlighting works perfectly, but no flychecking and no lsp completion (both for Elixir and web things). Furthermore, I’d like to eventually hook lsp-tailwiindcss in there… Is this how everyone else is working?
I installed the package with M-x heex-ts-install-grammar
Second, I’d like to get dap-elixir working, but haven’t worked with a debugger before… does this makes sense in a Elixir/Phoenix context? How I am assuming this would work is:
iex -S mix phx.server in a terminal, I would launch the debugger in emacsI have created a dap template but it only seems to to launch the runtime within a prod environement and it eventually errors out. I’d like to run it in dev, but also, I do not want to waste time on this if the return is that that great compared to just running iex in a separate tmux session.
Here’s the relevant pieces from my init.el
(use-package dap-mode
:defer
:custom
(dap-auto-configure-mode t)
:config
(require 'dap-elixir)
(dap-register-debug-template
"Elixir Debug"
(list :type "Elixir"
:cwd nil
:request "launch"
:program nil
:name "Elixir Debug"
:startApps t
:dap-server-path '("~/.emacs.d/.cache/lsp/elixir-ls/debug_adapter.sh"))))
PS. What is the lexer name to use to get lisp highlights in markdown?
Just sharing a short post that I written:
At the time of writing Emacs 30 is not yet released, but it might be worth upgrading to this version since it has some nice new features … especially useful is that it comes with elixir-ts-mode and heex-ts-mode, you just need to add the necessary language grammers.