feat(tinymist): implement simple workspace commands

lua/lspconfig/configs/tinymist.lua

@@ -1,3 +1,47 @@
+---@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
+
 return {
   default_config = {
     cmd = { 'tinymist' },
@@ -6,11 +50,37 @@ return {
       return vim.fs.dirname(vim.fs.find('.git', { path = fname, upward = true })[1])
     end,
     single_file_support = true,
+    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,
   },
   docs = {
     description = [[
 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`.
     ]],
   },
 }