Automatically quit vim if NERDTree is last and only buffer

Question

I have the following in my .vimrc: ``` """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" " Open NERDTree by default """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" autocmd VimEnter * NERDTree autocmd VimEnter * wincmd p ``` So, ``` % vim file.txt ``` opens NERDTree and focuses the cursor in the file.txt buffer. I make my edits, and hit :q on the buffer, and I'm left with . . . NERDTree. This is annoying. I could use :qa to close all buffers, and exit vim, but I'm used to the :q trope. So I'm wondering if there's a way to detect that the only remaining buffer is NERDTree, and "unify" the two buffers, for purposes of :q Edit Ask and ye shall receive: https://github.com/scrooloose/nerdtree/issues#issue/21

Accepted Answer

A script to do exactly this has been posted on the NERDTree issue list. Checkout issue-21 on GitHub for nerdtree.

This leads to the single line command for your vimrc here:

```
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
```

Automatically quit vim if NERDTree is last and only buffer

Solution

Problem