空.vimrc导致一些脚本不加载？

Question

在没有~/..vimrc的情况下，在vim中运行:scriptnames时会得到以下列表

  1: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/defaults.vim
  2: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/syntax/syntax.vim
  3: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/syntax/synload.vim
  4: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/syntax/syncolor.vim
  5: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/filetype.vim
  6: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/ftplugin.vim
  7: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/indent.vim
  8: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/getscriptPlugin.vim
  9: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/gzip.vim
 10: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/logiPat.vim
 11: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/manpager.vim
 12: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/matchparen.vim
 13: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/netrwPlugin.vim
 14: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/rrhelper.vim
 15: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/spellfile.vim
 16: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/tarPlugin.vim
 17: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/tohtml.vim
 18: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/vimballPlugin.vim
 19: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/zipPlugin.vim

然而，如果我只做touch ~/..vimrc，我的:scriptnames就会变成这样

  1: ~/.vimrc
  2: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/getscriptPlugin.vim
  3: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/gzip.vim
  4: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/logiPat.vim
  5: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/manpager.vim
  6: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/matchparen.vim
  7: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/netrwPlugin.vim
  8: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/rrhelper.vim
  9: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/spellfile.vim
 10: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/tarPlugin.vim
 11: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/tohtml.vim
 12: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/vimballPlugin.vim
 13: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/plugin/zipPlugin.vim

是什么导致vim跳过默认插件？我非常喜欢默认设置，有什么方法可以将更改设置保存在vimrc文件中而不覆盖默认值呢？

Answer 1

如果没有vimrc，Vim将加载/usr/share/vim/vim80/defaults.vim。您可以看到第一行：

1: /usr/local/Cellar/vim/8.0.0134/share/vim/vim80/defaults.vim

在第二个:scriptnames输出中丢失。

来自:help defaults.vim

If Vim is started normally and no user vimrc file is found, the
$VIMRUTIME/defaults.vim script is loaded.

[...]

This should work well for new Vim users.  If you create your own .vimrc, it is
recommended to add this line somewhere near the top:
        unlet! skip_defaults_vim
        source $VIMRUNTIME/defaults.vim

请注意，这只适用于Vim8.Vim7.4和更早版本的defaults.vim文件。