~H sigils no longer formatted after updating to Elixir 1.15.5

[balexand]

Environment

• Elixir & Erlang versions (elixir --version): Elixir 1.15.5, OTP 26.0.2
• Elixir Language Server version: 0.16.0
• Operating system: Mac OS (Intel, latest)
• Editor or IDE name (e.g. Emacs/VSCode): VSCode
• Editor Plugin/LSP Client name and version: jakebecker.elixir-ls 0.16.0

Current behavior

After updating to Elixir 1.15.5 ~H sigils are no longer formatted by the VSCode ElixirLS plugin. To reproduce, generate a new Phoenix project with mix phx.new example. The generated ExampleWeb.CoreComponents module contains ~H sigils that can be used for testing and the generated .formatter.exs file includes plugins: [Phoenix.LiveView.HTMLFormatter]. Running mix format from the command line will result in the ~H sigils being formatted. But if the formatter is run by ElixirLS then the Elixir code is formatted but not the ~H sigils.

Downgrading to Elixir 1.15.4 fixes the problem.

Expected behavior

I would expect ~H sigils to be formatted by ElixirLS as it was prior to Elixir version 1.15.5.

Thanks.

[lukaszsamson]

Thanks for the report. There were formatter plugin related changes in 1.15.5. I will investigate

[champeric]

I just want to chime in that I have the exact same problem with the same environment.

[stevencorona]

I've had the same issue but specifically within an umbrella project - @lukaszsamson @champeric are you both working in umbrella projects as well?

It also seems to work sporatically, almost like it's using the wrong .formatter.exs configuration for the wrong project app.

[lukaszsamson]

Thanks for reporting. This is a regression in elixir 1.15.5

[lukaszsamson]

Already fixed upstream and backported to 1.15 branch. 1.16 and 1.15.6 releases should not be affected by this bug

[balexand]

Thanks!