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, 79 insertions, 0 deletions

diff --git a/lsp/tinymist.lua b/lsp/tinymist.lua
new file mode 100644
index 00000000..369b7a30
--- /dev/null
+++ b/lsp/tinymist.lua
@@ -0,0 +1,79 @@
+---@param command_name string
+---@return fun():nil run_tinymist_command, string cmd_name, string cmd_desc
+local function create_tinymist_command(command_name)
+  local export_type = command_name:match 'tinymist%.export(%w+)'
+  local info_type = command_name:match 'tinymist%.(%w+)'
+  if info_type and info_type:match '^get' then
+    info_type = info_type:gsub('^get', 'Get')
+  end
+  local cmd_display = export_type or info_type
+  ---Execute the Tinymist command, supporting both 0.10 and 0.11 exec methods
+  ---@return nil
+  local function run_tinymist_command()
+    local bufnr = vim.api.nvim_get_current_buf()
+    local client = vim.lsp.get_clients({ name = 'tinymist', buffer = bufnr })[1]
+    if not client then
+      return vim.notify('No Tinymist client attached to the current buffer', vim.log.levels.ERROR)
+    end
+    local arguments = { vim.api.nvim_buf_get_name(bufnr) }
+    local title_str = export_type and ('Export ' .. cmd_display) or cmd_display
+    ---@type lsp.Handler
+    local function handler(err, res)
+      if err then
+        return vim.notify(err.code .. ': ' .. err.message, vim.log.levels.ERROR)
+      end
+      -- If exporting, show the string result; else, show the table for inspection
+      vim.notify(export_type and res or vim.inspect(res), vim.log.levels.INFO)
+    end
+    if vim.fn.has 'nvim-0.11' == 1 then
+      -- For Neovim 0.11+
+      return client:exec_cmd({
+        title = title_str,
+        command = command_name,
+        arguments = arguments,
+      }, { bufnr = bufnr }, handler)
+    else
+      return vim.notify('Tinymist commands require Neovim 0.11+', vim.log.levels.WARN)
+    end
+  end
+  -- Construct a readable command name/desc
+  local cmd_name = export_type and ('LspTinymistExport' .. cmd_display) or ('LspTinymist' .. cmd_display) ---@type string
+  local cmd_desc = export_type and ('Export to ' .. cmd_display) or ('Get ' .. cmd_display) ---@type string
+  return run_tinymist_command, cmd_name, cmd_desc
+end
+
+---@brief
+---
+---https://github.com/Myriad-Dreamin/tinymist
+-- An integrated language service for Typst [taɪpst]. You can also call it "微霭" [wēi ǎi] in Chinese.
+--
+-- Currently some of Tinymist's workspace commands are supported, namely:
+-- `LspTinymistExportSvg`, `LspTinymistExportPng`, `LspTinymistExportPdf
+-- `LspTinymistExportMarkdown`, `LspTinymistExportText`, `LspTinymistExportQuery`,
+-- `LspTinymistExportAnsiHighlight`, `LspTinymistGetServerInfo`,
+-- `LspTinymistGetDocumentTrace`, `LspTinymistGetWorkspaceLabels`, and
+-- `LspTinymistGetDocumentMetrics`.
+return {
+  cmd = { 'tinymist' },
+  filetypes = { 'typst' },
+  root_markers = { '.git' },
+  on_attach = function(_)
+    for _, command in ipairs {
+      'tinymist.exportSvg',
+      'tinymist.exportPng',
+      'tinymist.exportPdf',
+      -- 'tinymist.exportHtml', -- Use typst 0.13
+      'tinymist.exportMarkdown',
+      'tinymist.exportText',
+      'tinymist.exportQuery',
+      'tinymist.exportAnsiHighlight',
+      'tinymist.getServerInfo',
+      'tinymist.getDocumentTrace',
+      'tinymist.getWorkspaceLabels',
+      'tinymist.getDocumentMetrics',
+    } do
+      local cmd_func, cmd_name, cmd_desc = create_tinymist_command(command)
+      vim.api.nvim_create_user_command(cmd_name, cmd_func, { nargs = 0, desc = cmd_desc })
+    end
+  end,
+}