minimal_debug_init.lua

local on_windows = vim.loop.os_uname().version:match "Windows"

local function join_paths(...)
  local path_sep = on_windows and "\\" or "/"
  local result = table.concat({ ... }, path_sep)
  return result
end

vim.opt.runtimepath = vim.env.VIMRUNTIME
vim.opt.completeopt = "menu"

local temp_dir = vim.loop.os_getenv "TEMP" or "/tmp"

vim.opt.packpath = join_paths(temp_dir, "nvim-lsp-installer-debug", "site")

local package_root = join_paths(temp_dir, "nvim-lsp-installer-debug", "site", "pack")
local install_path = join_paths(package_root, "packer", "start", "packer.nvim")
local compile_path = join_paths(install_path, "plugin", "packer_compiled.lua")

local function load_plugins()
  require("packer").startup {
    {
      "wbthomason/packer.nvim",
      "neovim/nvim-lspconfig",
      "williamboman/nvim-lsp-installer",
      "sheerun/vim-polyglot",
      "purescript-contrib/purescript-vim",
    },
    config = {
      package_root = package_root,
      compile_path = compile_path,
    },
  }
end

function _G.load_config()
  local lspconfig = require "lspconfig"

  local function on_attach(client, bufnr)
    vim.api.nvim_buf_set_option(bufnr, "omnifunc", "v:lua.vim.lsp.omnifunc")
  end

  require("nvim-lsp-installer").setup {
    log = vim.log.levels.DEBUG,
  }

  -- ==================================================
  -- ========= SETUP RELEVANT SERVER(S) HERE! =========
  -- =================================================
  --
  -- lspconfig.sumneko_lua.setup { on_attach = on_attach }
  lspconfig.jdtls.setup({on_attach = on_attach})
  lspconfig.purescriptls.setup {}
end

if vim.fn.isdirectory(install_path) == 0 then
  vim.fn.system { "git", "clone", "https://github.com/wbthomason/packer.nvim", install_path }
  load_plugins()
  require("packer").sync()
  vim.cmd [[autocmd User PackerComplete ++once lua load_config()]]
else
  load_plugins()
  require("packer").sync()
  _G.load_config()
end