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, 34 insertions, 0 deletions

diff --git a/lsp/html.lua b/lsp/html.lua
new file mode 100644
index 00000000..7018b86f
--- /dev/null
+++ b/lsp/html.lua
@@ -0,0 +1,34 @@
+---@brief
+---
+---https://github.com/hrsh7th/vscode-langservers-extracted
+--
+-- `vscode-html-language-server` can be installed via `npm`:
+-- ```sh
+-- npm i -g vscode-langservers-extracted
+-- ```
+--
+-- Neovim does not currently include built-in snippets. `vscode-html-language-server` only provides completions when snippet support is enabled.
+-- To enable completion, install a snippet plugin and add the following override to your language client capabilities during setup.
+--
+-- The code-formatting feature of the lsp can be controlled with the `provideFormatter` option.
+--
+-- ```lua
+-- --Enable (broadcasting) snippet capability for completion
+-- local capabilities = vim.lsp.protocol.make_client_capabilities()
+-- capabilities.textDocument.completion.completionItem.snippetSupport = true
+--
+-- vim.lsp.config('html', {
+--   capabilities = capabilities,
+-- })
+-- ```
+return {
+  cmd = { 'vscode-html-language-server', '--stdio' },
+  filetypes = { 'html', 'templ' },
+  root_markers = { 'package.json', '.git' },
+  settings = {},
+  init_options = {
+    provideFormatter = true,
+    embeddedLanguages = { css = true, javascript = true },
+    configurationSection = { 'html', 'css', 'javascript' },
+  },
+}