Took me some fighting until I pinpoint where and what to put in ~/.spacemacs but it looks like it’s working now. Thank you for the pointer!
Is there an option to run mix format on a file after save?
dimitarvp
dimitarvp
Thanks. I’m using Spacemacs casually for several months and still haven’t learned to properly customize it. Any idea where exactly in its init file should I put this block?
NobbZ
You do not need the full block, I just posted the full area because it was simpler for me 
And sadly I can not tell where to put that in spacemacs.
Its basically the reason why I dropped spacemacs. All packages READMEs assumed vanilla emacs + use-package. It usually took me hours to find out where to put stuff.
After I dropped spacemacs and did a free form emacs config, which I later split into many files, organized similar to how Steve Purcell did, it became a lot easier. Eventually I got to the point where I had everything I need in my emacs config, and even though I did not leverage lazy loading, the config loaded within 5 to 7 seconds, while spacemacs never really got below 20, despite the fact that it advertised itself as “fast”.
Also, perhaps its time that someone opens an issue at spacemacs and tells them that Alchemist is not state of the art anymore but anyone uses lsp-mode/eglot + the LS.
PS: The important part is actually this:
(add-hook 'elixir-mode-hook ;; when we enter elixir mode
(lambda () ;; call this function
;; Format on save, this buffer only.
(add-hook 'before-save-hook #'lsp-format-buffer nil t)))
If you use eglot rather than lsp-mode you need to figure out what function you have to put there in the hook.
dimitarvp
Thank you. Only added that last block to Spacemacs’ dotspacemacs/user-config function so now it looks like this:
(defun dotspacemacs/user-config ()
(use-package lsp-mode
:commands lsp
:ensure t
:diminish lsp-mode
:hook
(elixir-mode . lsp)
:init
(add-to-list 'exec-path "/Users/dimi/bin/elixir-ls/release"))
(add-hook 'elixir-mode-hook
(lambda ()
(add-hook 'before-save-hook #'lsp-format-buffer nil t)))
)
lsp-mode plus elixir-ls work, and so does formatting on save.
Very grateful for the assist. 
axelson
Scenic Core Team
Version 0.6.2 was released today! 
Here are the highlights.
Improvements:
Changes:
- Remove query prefixes from workspace symbol search (the functionality is now longer supported by VSCode) (thanks Łukasz Samson) #396
Bug Fixes:
- Improve formatting speed (thanks Matt Baker) #390
- Fix warnings and errors around starting wx (thanks Łukasz Samson) #388
- This fixes an issue when running ElixirLS in VSCode remote dev containers
- Fix formatting on windows (thanks Po Chen) #375
VSCode:
- Turn files in stack traces into clickable links (thanks Tan Jay Jun) #152
- Bump deps and switch to newer vscode platform version (thanks Łukasz Samson) #148
Also:
- There’s now an ElixirLS-based extension for Nova: GitHub - raulchedrese/nova-elixir-ls: Elixir Language Server extension for Nova. · GitHub
- There is a recent regression in formatting speed (that #390 partially improves): Apparent formatter speed regression · Issue #381 · elixir-lsp/elixir-ls · GitHub
- There’s a WIP PR to address this that will hopefully be ready for the next ElixirLS release: https://github.com/elixir-lsp/elixir-ls/pull/394
As always, I want to give a huge thanks to all the contributors to this release! 
10
wingyplus
The patch is open on vim-lsp-settings Upgrade ElixirLS to v0.6.2 by wingyplus · Pull Request #341 · mattn/vim-lsp-settings · GitHub. 
dimitarvp
Did a git pull the other day and then git checkout v0.6.2. Both Elixir and Rust language servers fail with reasons I can’t find. Where should I look?
With Elixir I get “Server <…> status:starting exited with status exit. Do you want to restart it?”-- even if I press Y the same things happens until I press N.
Can anyone help?
EDIT: Sorry, had a bad day. It was as simple as asdf local erlang 23.1.5 because my project used an older version that I’ve since deleted. Apologies for polluting the thread.
axelson
Scenic Core Team
Version 0.6.3 was released today! 
Here are the highlights:
Major changes:
- Add support for
textDocument/implementation(“Go to Implementations” and “Peek Implementations”) (thanks Łukasz Samson) #415 - Experimental: Add code lens to run tests on click (thanks Étienne Lévesque) #389
- Note: This is disabled by default until it is more stable
Improvements:
- More specific
CompletionItemKindfor autocomplete (thanks Jason Axelson) #419 - Support ASDF installed via homebrew on macOS (thanks Fabian Stegemann) #428
- Support autocomplete for many_to_many associations (thanks Damon Janis) elixir_sense #120
Bug Fixes:
- Significantly improve debugger stability (thanks Łukasz Samson) #457
- Make launcher script more robust and support symlinks (thanks Joshua Trees) #445
- Do not insert
endafterdo:(thanks Łukasz Samson) #426 - URI - file system path conversion fixes (thanks Łukasz Samson) #447
- This fixes using ElixirLS on Nova unsaved files
Housekeeping:
- Switch from Travis CI to GitHub actions (thanks Jason Axelson) #420
- Add an .editorconfig for the project (thanks Jeff Jewiss) #432
VSCode:
- Fix debugger not starting on windows (thanks Łukasz Samson) #154
- Add fodling markers for @doc, @moduledoc, @typedoc, and #region (thanks Michael Johnston) #157
As always, I want to give a huge thanks to all the contributors to this release!
33
axelson
Scenic Core Team
0.6.4 was released today which has a hotfix for a startup issue that was primarily affecting macOS: