File picker for #file: may cause the editor to freeze when cwd has large number of files

[unlimitedsola]

When hitting <Tab> after #file:, it may cause the editor to freeze when the current working directory has a large number of files (e.g.: working in a Rust project where target/ directory contains a large number of compiled objects.)

I assume this is caused by globbing too many files into the table here:

CopilotChat.nvim/lua/CopilotChat/config.lua

Lines 190 to 192 in 2ebe591

	local files = vim.tbl_filter(function(file)
	return vim.fn.isdirectory(file) == 0
	end, vim.fn.glob(cwd .. '/**/*', false, true))

I read that this plugin has fzf-lua support but after digging into the source code a little bit it seems that the relevant code is no longer in use.

Since the plugin exposes the context configuration so I did an ad-hoc fix for this to avoid loading too many files into the memory:

{
  "CopilotC-Nvim/CopilotChat.nvim",
  opts = {
    contexts = {
      file = {
        input = function(callback)
          local fzf = require('fzf-lua')
          local fzf_path = require('fzf-lua.path')
          fzf.files({
            complete = function(selected, opts)
              local file = fzf_path.entry_to_file(selected[1], opts, opts._uri)
              if file.path == "none" then return end
              vim.defer_fn(function()
                callback(file.path)
              end, 100)
            end
          })
        end
      }
    }

  }
}

I think it is worth having such behavior by default so that it is easier to work with large projects. Thanks!