feat(builtin.files): Add hidden file filter toggle to grep_string

Author: seffradev

lua/telescope/builtin/__files.lua

@@ -224,6 +224,10 @@ files.grep_string = function(opts)
     additional_args[#additional_args + 1] = "--encoding=" .. opts.file_encoding
   end
 
+  if opts.hidden then
+    additional_args[#additional_args + 1] = "--hidden"
+  end
+
   local args
   if visual == true then
     args = flatten {

lua/telescope/builtin/init.lua

@@ -70,6 +70,7 @@ builtin.live_grep = require_on_exported_call("telescope.builtin.__files").live_g
 ---@field disable_coordinates boolean: don't show the line and row numbers (default: false)
 ---@field only_sort_text boolean: only sort the text, not the file, line or row (default: false)
 ---@field file_encoding string: file encoding for the entry & previewer
+---@field hidden boolean: if true, hidden directories and files will be searched (default: false)
 builtin.grep_string = require_on_exported_call("telescope.builtin.__files").grep_string
 
 --- Search for files (respecting .gitignore)