From 81a570f58b2113cc2d538efae743ad38d6ab564f Mon Sep 17 00:00:00 2001
From: Lorenzo Bellina <59364991+TheRealLorenz@users.noreply.github.com>
Date: Sun, 13 Apr 2025 00:15:43 +0200
Subject: feat: migrate to vim.lsp.config #3659

Problem:
Nvim 0.11 has vim.lsp.config, which mostly replaces the legacy
nvim-lspconfig "framework".

Solution:
Migrate all configs to `lsp/*` variants. The old configs in
`lua/lspconfig/` are "frozen".

The new configs include these changes:
- `commands` field became raw calls to
  `vim.api.nvim_buf_create_user_command` inside `on_attach`.
- `root_dir` became:
  - `root_markers` whenever the file list was simple didn't need to mach `*`
  - if the logic was complicated, or needed to match something like
    '\*.c', it was defined as a vim.lsp.Config `root_dir` callback.
- `on_config_change` became `before_init`. I don't actually know if this
  is the correct approach, but looking around the documentation of
  `nvim-lspconfig` a saw that it was defined as the function that gets
  called as soon as the config have `root_dir`, and so I thought
  `before_init` might be the closest alternative.
- `docs.description` became a luadoc `@brief` docstring.
- `single_file_support = false`?

Co-authored-by: Aliou Diallo <aliou@users.noreply.github.com>
Co-authored-by: Justin M. Keyes <justinkz@gmail.com>
---
 lsp/metals.lua | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 lsp/metals.lua

(limited to 'lsp/metals.lua')

diff --git a/lsp/metals.lua b/lsp/metals.lua
new file mode 100644
index 00000000..0263f607
--- /dev/null
+++ b/lsp/metals.lua
@@ -0,0 +1,30 @@
+---@brief
+---
+---https://scalameta.org/metals/
+--
+-- Scala language server with rich IDE features.
+--
+-- See full instructions in the Metals documentation:
+--
+-- https://scalameta.org/metals/docs/editors/vim#using-an-alternative-lsp-client
+--
+-- Note: that if you're using [nvim-metals](https://github.com/scalameta/nvim-metals), that plugin fully handles the setup and installation of Metals, and you shouldn't set up Metals both with it and `lspconfig`.
+--
+-- To install Metals, make sure to have [coursier](https://get-coursier.io/docs/cli-installation) installed, and once you do you can install the latest Metals with `cs install metals`.
+return {
+  cmd = { 'metals' },
+  filetypes = { 'scala' },
+  root_markers = { 'build.sbt', 'build.sc', 'build.gradle', 'pom.xml' },
+  init_options = {
+    statusBarProvider = 'show-message',
+    isHttpEnabled = true,
+    compilerOptions = {
+      snippetAutoIndent = false,
+    },
+  },
+  capabilities = {
+    workspace = {
+      configuration = false,
+    },
+  },
+}
-- 
cgit v1.2.3-70-g09d2