How to recover and delete swap file automatically on E325?

Question

Vim has a nice feature to recover files if previous session was crashed . Vim show something like this when it happened:

Swap file "~/Desktop/.file.txt.swp" already exists!
[O]pen Read-Only, (E)dit anyway, (R)ecover, (Q)uit, (A)bort:

In most cases I recover the file, and its irritating to press r every time vim crashes.

1. I want recovery to be automatic.

The problem not ends here. Even if the file has been recovered the swap file still exists there, and that prompt appears again.

1. I want swap file to be deleted if recovery occurs.

So each time in such situation, I want to recover silently and delete the swap file.

Answer 1

I haven't tried it, but I think you could use this:

augroup AutomaticSwapRecoveryAndDelete
    autocmd!
    autocmd SwapExists * :let v:swapchoice = 'r' | let b:swapname = v:swapname 
    autocmd BufWinEnter * :if exists("b:swapname") | call delete(b:swapname) | unlet b:swapname | endif
augroup end

See :h v:swapchoice, :h v:swapcommand, :h v:swapname and :h SwapExists

Answer 2

Since the swap file should exist as long as your are editing the buffer, I woud rather replace the second autocommand of elmart's answer by

augroup AutomaticSwapRecoveryAndDelete
    autocmd!
    autocmd SwapExists * :let v:swapchoice = 'r' | let b:swapname = v:swapname 
    autocmd VimLeave * :if exists("b:swapname") | call delete(b:swapname) | endif
augroup end

Moreover, that would allow you to use :DiffOrig, when in doubt about the difference between swap and original.