autopaq.lua

--[[
  Lightweight wrapper around paq-nvim. It simply makes sure that paq-nvim is
  installed, if not it downloads it and installs packages which makes running
  neovim for the first time a pleasant experience.
--]]

local function require_and_install_paq()
  vim.notify("Installing paq-nvim plugin manager...")
  local install_path = vim.fn.stdpath('data') .. '/site/pack/paqs/start/paq-nvim'
  vim.fn.system{'git', 'clone', '--depth', 1, 'https://github.com/savq/paq-nvim', install_path}
  vim.cmd.packadd("paq-nvim")
  return require("paq")
end

local already_installed, paq = xpcall(function() return require("paq") end, require_and_install_paq)

function paq.bootstrap(plugins)
  paq(plugins)
  if not already_installed then
    vim.notify("Installing plugins...")
    -- Temporally prevent sourcing of packages. By default paq sources plugins
    -- after installing them. This is fine when this happens after VimEnter,
    -- which is usually the case. However, here we install packages while
    -- loading the vimrc, and loading plugins before this is finished can lead
    -- to complications.
    local paq_done, nosource = false, vim.api.nvim_create_autocmd("SourceCmd", {command = ":"})
    -- no way to run paq synchronously, so we wait for the 'done' event
    vim.api.nvim_create_autocmd("User", {
      pattern = "PaqDoneInstall",
      once = true,
      callback = function()
        paq_done = true
        vim.api.nvim_del_autocmd(nosource)
      end
    })
    paq.install()
    while not paq_done do
      vim.wait(1000)
    end
  end
  return paq
end

return setmetatable({}, {
  __call = function(_, ...) paq.bootstrap(...) end,
  __index = paq
})