g:autosave option for saving if default session exists

[nybblr]

I have a use case that doesn't seem too unusual that would be incredibly useful to myself: usually, I don't want to make a default.vim session in any directory I happen to open vim in, otherwise I litter my clean directories with sessions from random times I needed vim open. On the other hand, if I have been using sessions (e.g. default.vim exists) I would like the autosave functionality to be "yes" so that when I quit, default.vim reflects the state of vim before exiting.

In essence, a fourth option of "ifexists", which acts like "no" if there isn't a default.vim in the current directory, and "yes" if there is one. This way, I don't litter my drive with sessions files, but get the autosave functionality where I have explicitly called SaveSession before.

~ Jonathan Martin

[xolox]

Hi Jonathan and thanks for the feedback.

I never intended the session plug-in to be used to store session scripts all over the filesystem :-). The guiding principle was that you would have one directory where all uniquely named session scripts would be stored. Nevertheless I understand that people do this, and that's fine of course, but I'm not going to further compromise the basic design of the plug-in to accomodate this.

Having said all that, I think the plug-in should already be flexible enough to accomodate this use case. Please try adding the fragment of Vim script code given below to your ~/.vimrc script:

autocmd BufReadPost * call s:CheckDefaultSession()

function s:CheckDefaultSession()
  let directory = expand('%:p:h')
  if filereadable(directory . '/default.vim')
    let g:session_autosave = 'yes'
  else
    let g:session_autosave = 'no'
  endif
endfunction

I'm closing this issue now because the code given above should enable your use case without changes to the plug-in. If it doesn't work, feel free to reopen this issue.