Add and document current_function option

Author: wbthomason

README.md

@@ -111,6 +111,8 @@ lsp_status.config {
   end
 }
 ```
+- `current_function`: Boolean, `true` if the current function should be updated and displayed in the
+  default statusline component.
 
 ## Example Use
 

doc/lsp-status.txt

@@ -97,6 +97,9 @@ config({config})                                   *lsp-status.config()*
                   `function(cursor_pos, document_symbol)` that should return
                   `true` if `document_symbol` (a `DocumentSymbol` ) should be
                   accepted as the symbol currently containing the cursor.• 
+                • `current_function`: Boolean, `true` if the current function
+                  should be updated and displayed in the default statusline
+                  component.
                 • `indicator_errors` : Symbol to place next to the error count
                   in `status` . Default: '',• 
                 • `indicator_warnings` : Symbol to place next to the warning

lua/lsp-status.lua

@@ -1,6 +1,7 @@
 local _config = {}
 local default_config = {
   kind_labels = {},
+  current_function = true,
   indicator_errors = '',
   indicator_warnings = '',
   indicator_info = '🛈',
@@ -62,7 +63,7 @@ local function config(user_config)
   pyls_ms._init(messages, _config)
   clangd._init(messages, _config)
   messaging._init(messages, _config)
-  current_function._init(messages, _config)
+  if _config.current_function then current_function._init(messages, _config) end
   statusline._init(messages, _config)
 end
 
@@ -86,7 +87,7 @@ local function on_attach(client)
 
   -- If the client is a documentSymbolProvider, set up an autocommand
   -- to update the containing symbol
-  if client.resolved_capabilities.document_symbol then
+  if _config.current_function and client.resolved_capabilities.document_symbol then
     vim.api.nvim_command('augroup lsp_aucmds')
     vim.api.nvim_command(
       'au CursorHold <buffer> lua require("lsp-status").update_current_function()'

lua/lsp-status/statusline.lua

@@ -82,9 +82,11 @@ local function statusline_lsp()
 
   local base_status = vim.trim(table.concat(status_parts, ' ') .. ' ' .. table.concat(msgs, ' '))
   local symbol = config.status_symbol .. ((some_diagnostics and only_hint) and '' or ' ')
-  local current_function = vim.b.lsp_current_function
-  if current_function and current_function ~= '' then
-    symbol = symbol .. '(' .. current_function .. ') '
+  if config.current_function then
+    local current_function = vim.b.lsp_current_function
+    if current_function and current_function ~= '' then
+      symbol = symbol .. '(' .. current_function .. ') '
+    end
   end
 
   if base_status ~= '' then