jones-nvim-config/lua/config/harpoon.lua

local api = vim.api
local harpoon = require("harpoon")
harpoon.setup({})
-- basic telescope configuration
local conf = require("telescope.config").values
local function toggle_telescope(harpoon_files)
  local file_paths = {}
  for _, item in ipairs(harpoon_files.items) do
    table.insert(file_paths, item.value)
  end

  require("telescope.pickers")
      .new({}, {
        prompt_title = "Harpoon",
        finder = require("telescope.finders").new_table({
          results = file_paths,
        }),
        previewer = conf.file_previewer({}),
        sorter = conf.generic_sorter({}),
      })
      :find()
end

local function toggle_mark()
  local current_file = api.nvim_buf_get_name(0) -- Get the current buffer's file path
  local item, index = harpoon:list():get_by_value(current_file)
  if item then
    harpoon:list():remove_at(index)
    print("Removed from Harpoon: " .. current_file)
  else
    harpoon:list():add({ value = current_file })
    print("Added to Harpoon: " .. current_file)
  end
end

-- Commands
api.nvim_create_user_command("HarpoonClear", function()
  harpoon:list():clear()
end, { bang = true })
api.nvim_create_user_command("HarpoonAdd", function()
  harpoon:list():add()
end, { bang = true })
api.nvim_create_user_command("HarpoonToggleFile", function()
  toggle_mark()
end, { bang = true })
api.nvim_create_user_command("HarpoonUI", function()
  toggle_telescope(harpoon:list())
end, { bang = true })