Re: Cleaning up the buffer list

2012/7/12 <geoffrey.wood@thomsonreuters.com>

On Thursday, 12 July 2012 00:38:04 UTC+1, Chris Jones  wrote:
> I usually have a single Vim instance that stays up for weeks if not
> months at a time, such that I eventually have a large number of buffers
> as listed by the ':ls/:buffers' command.. well over 100 at this point in
> time. Even though I usually take good care to exit files once I know
> I will no longer need them (via a ':q/:wq').

> [I wrote a function to] feed the output of the :ls command to a variable and

> filter out buffers that are either 'active' (displayed in a window) or

> 'modified'. All others get buffer-wiped. [The function
> has potential problems.]

> Has anyone looked into buffer list manipulation before and could advise

> on a different approach &amp; suggest how I might be able to come up with

> something a bit less clunky..?

I use the following bufonly plugin written by CJ Robinson, which works perfectly for me.

Originally coming from using IDEs such as Eclipse, 

the provided :BOnly command works as the "close others" on the Tabs of Eclipse.

I use it quite frequently. Also you do not have to worry about changed buffers getting deleted, 

the plugin warns you and does not close them, unless you provide a Bang like this :BOnly! 

Actually, you can check it out here:

https://github.com/asishallab/vim_environment/blob/master/bufonly/plugin/bonly.vim 

or, to install it, put the following vimscript as bonly.vim in your ~/.vim/plugin directory:

" BufOnly.vim  -  Delete all the buffers except the current/named buffer.

"

" Copyright November 2003 by Christian J. Robinson <heptite@gmail.com>

"

" Distributed under the terms of the Vim license.  See ":help license".

"

" Usage:

"

" :Bonly / :BOnly / :Bufonly / :BufOnly [buffer] 

"

" Without any arguments the current buffer is kept.  With an argument the

" buffer name/number supplied is kept.

command! -nargs=? -complete=buffer -bang Bonly

    \ :call BufOnly('<args>', '<bang>')

command! -nargs=? -complete=buffer -bang BOnly

    \ :call BufOnly('<args>', '<bang>')

command! -nargs=? -complete=buffer -bang Bufonly

    \ :call BufOnly('<args>', '<bang>')

command! -nargs=? -complete=buffer -bang BufOnly

    \ :call BufOnly('<args>', '<bang>')

function! BufOnly(buffer, bang)

if a:buffer == ''

" No buffer provided, use the current buffer.

let buffer = bufnr('%')

elseif (a:buffer + 0) > 0

" A buffer number was provided.

let buffer = bufnr(a:buffer + 0)

else

" A buffer name was provided.

let buffer = bufnr(a:buffer)

endif

if buffer == -1

echohl ErrorMsg

echomsg "No matching buffer for" a:buffer

echohl None

return

endif

let last_buffer = bufnr('$')

let delete_count = 0

let n = 1

while n <= last_buffer

if n != buffer && buflisted(n)

if a:bang == '' && getbufvar(n, '&modified')

echohl ErrorMsg

echomsg 'No write since last change for buffer'

\ n '(add ! to override)'

echohl None

else

silent exe 'bdel' . a:bang . ' ' . n

if ! buflisted(n)

let delete_count = delete_count+1

endif

endif

endif

let n = n+1

endwhile

if delete_count == 1

echomsg delete_count "buffer deleted"

elseif delete_count > 1

echomsg delete_count "buffers deleted"

endif

endfunction

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