fix error while closing file (#1002)

lua/core/options.lua

@@ -5,6 +5,7 @@ local g = vim.g
 g.did_load_filetypes = 0
 g.do_filetype_lua = 1
 
+opt.confirm = true
 opt.laststatus = 3 -- global statusline
 opt.title = true
 opt.clipboard = "unnamedplus"

lua/core/utils.lua

@@ -3,8 +3,22 @@ local M = {}
 local cmd = vim.cmd
 
 M.close_buffer = function(force)
-  if vim.bo.buftype == "terminal" then vim.api.nvim_win_hide(0) return end
+   if vim.bo.buftype == "terminal" then
+      vim.api.nvim_win_hide(0)
+      return
+   end
+
+   local fileExists = vim.fn.filereadable(vim.fn.expand "%p")
+   local modified = vim.api.nvim_buf_get_option(vim.fn.bufnr(), "modified")
+
+   -- if file doesnt exist & its modified
+   if fileExists == 0 and modified then
+      print "no file name? add it now!"
+      return
+   end
+
    force = force or not vim.bo.buflisted or vim.bo.buftype == "nofile"
+
    -- if not force, change to prev buf and then close current
    local close_cmd = force and ":bd!" or ":bp | bd" .. vim.fn.bufnr()
    vim.cmd(close_cmd)
@@ -96,7 +110,9 @@ end
 M.remove_default_plugins = function(plugins)
    local removals = require("core.utils").load_config().plugins.remove or {}
    if not vim.tbl_isempty(removals) then
-      for _, plugin in pairs(removals) do plugins[plugin] = nil end
+      for _, plugin in pairs(removals) do
+         plugins[plugin] = nil
+      end
    end
    return plugins
 end