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>

1 files changed, 62 insertions, 0 deletions

diff --git a/lsp/htmx.lua b/lsp/htmx.lua
new file mode 100644
index 00000000..3d1a092d
--- /dev/null
+++ b/lsp/htmx.lua
@@ -0,0 +1,62 @@
+---@brief
+---
+---https://github.com/ThePrimeagen/htmx-lsp
+--
+-- `htmx-lsp` can be installed via `cargo`:
+-- ```sh
+-- cargo install htmx-lsp
+-- ```
+--
+-- Lsp is still very much work in progress and experimental. Use at your own risk.
+return {
+  cmd = { 'htmx-lsp' },
+  filetypes = { -- filetypes copied and adjusted from tailwindcss-intellisense
+    -- html
+    'aspnetcorerazor',
+    'astro',
+    'astro-markdown',
+    'blade',
+    'clojure',
+    'django-html',
+    'htmldjango',
+    'edge',
+    'eelixir', -- vim ft
+    'elixir',
+    'ejs',
+    'erb',
+    'eruby', -- vim ft
+    'gohtml',
+    'gohtmltmpl',
+    'haml',
+    'handlebars',
+    'hbs',
+    'html',
+    'htmlangular',
+    'html-eex',
+    'heex',
+    'jade',
+    'leaf',
+    'liquid',
+    'markdown',
+    'mdx',
+    'mustache',
+    'njk',
+    'nunjucks',
+    'php',
+    'razor',
+    'slim',
+    'twig',
+    -- js
+    'javascript',
+    'javascriptreact',
+    'reason',
+    'rescript',
+    'typescript',
+    'typescriptreact',
+    -- mixed
+    'vue',
+    'svelte',
+    'templ',
+  },
+  root_markers = { '.git' },
+}