Automatically quit vim if NERDTree is last and only buffer
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
Solution 1:
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("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
Solution 2:
function! s:CloseIfOnlyControlWinLeft()
if winnr("$") != 1
return
endif
if (exists("t:NERDTreeBufName") && bufwinnr(t:NERDTreeBufName) != -1)
\ || &buftype == 'quickfix'
q
endif
endfunction
augroup CloseIfOnlyControlWinLeft
au!
au BufEnter * call s:CloseIfOnlyControlWinLeft()
augroup END
From my vimrc, based on a version from janus repo.
Enhancements: also close if only a quickfix window is left.
It uses the BufEnter
autocommand instead, which is required for &bt
to work properly.
Solution 3:
An idea in need of implementation:
You could write a function which, when called, checks if the only buffer remaining (or perhaps the only non-help buffer, if you prefer) is a NERDTree buffer and, if so, deletes it (or just quits).
Then have an autocmd run it whenever a buffer is deleted / hidden / whatever actually happens when you :q (it shames me to admit I'm not entirely sure!).