nvim2023/after/plugin/telescope.lua

local builtin = require("telescope.builtin")

local function git_exists()
  local path = require("pl.path")
  local p = "."
  while true do
    local gitpath = p .. "/.git"
    local d = io.open(gitpath)
    if d then
      d:close()
      return true
    else
      p = p .. "/.."
    end
    if path.abspath(p) ~= "/" then
      return false
    end
  end
end

vim.keymap.set('n', '<C-P>', function()
  if git_exists() then
    builtin.git_files()
  else
    builtin.find_files()
  end
end, {})
vim.keymap.set('n', '<leader>ff', builtin.find_files, {})
vim.keymap.set('n', '<leader>fg', builtin.live_grep, {})
vim.keymap.set('n', '<leader>fh', builtin.help_tags, {})