Helix editor for Elixir Development

Can it do the template coloring in the same files i.e. two different syntaxes in one file? The HEEX stuff?

@OvermindDL1 posted about it last year on DT, I gave it a quick go but didn’t have time to use it much after that, it seemed quite basic at the time tho.

I added the link to it in your post

Yep, it’s awesome. I’m also using a not yet merged PR which adds a file tree to it, it’s stable and I had no issues with it for a month or so.

It is possible because their syntax highlighting uses tree-sitter.

Furthermore, I suggest updating the Elixir configuration to support specific features of the language server in heex. Additionally, I discovered that my understanding of the “injection-regex” configuration item was incorrect, and we may not require it.

[[language]]
name = "elixir"
scope = "source.elixir"
file-types = ["ex", "exs", "heex"]
roots = ["mix.exs"]
auto-format = true
diagnostic-severity = "Hint"
comment-token = "#"
indent = {tab-width = 2, unit = " "}
language-server = {command = "elixir-ls"}

Awesome!

Nice, thank you.

Does it deal with umbrella projects well? I noticed that it detects mix.exs but umbrellas have several such files at a different level.

Based on current usage, LSP can function normally with Umbrella projects.

I conducted a test using an Umbrella app named “hello” with a subproject at “hello/apps/world”. Only “hello/apps/world/.elixir_ls” was generated, and it seems that “hello/.elixir_ls” was not generated.

I guess that elixir-ls has implemented support for Umbrella projects, even though “mix.exs” exists in the directory.

I am just trying to use Helix, does come with dialyzer support?

Yep, it does. You will see all the warning right in the editor.

I read the whole tutor this weekend, and I’m all set up. I’m giving it a go this week

Thanks for sharing!