The `'backupdir'` option doesn't support full paths.

[ghost]

The 'directory' and 'undodir' options support saving backup files based on the files full path. This functionality is missing from 'backupdir' and this functionality has been sitting in vim's todo list for over 4 years:

7 The 'directory' option supports changing path separators to "%" to make
file names unique, also support this for 'backupdir'. (Mikolaj Machowski)
Patch by Christian Brabandt, 2010 Oct 21.

Here's the forgotten patch.

[robertmeta]

Glad to see this already sitting here with a patch! I was coming to request this unification of expectations.

[robertmeta]

Glad to see this already sitting here with a patch! I was coming to request this unification of expectations.

[Shougo]

Unfortunatelly, @ghost is removed account. And it seems already merged.
It should be closed?

[Shougo]

Unfortunatelly, @ghost is removed account. And it seems already merged.
It should be closed?

[splinterofchaos]

If you're refering to "Implement saving full paths for 'backupdir'. #2501", it is not on the master branch, and I don't see a PR attached to the commit.

[splinterofchaos]

If you're refering to "Implement saving full paths for 'backupdir'. #2501", it is not on the master branch, and I don't see a PR attached to the commit.

[Shougo]

OH....

[Shougo]

OH....

[mkoskar]

Since I've come across this, I'll offer kind of workaround I'm using successfully for quiet a long time:

autocmd BufWritePre * let &backupext = substitute(expand('%:p:h'), '/', '%', 'g')

[mkoskar]

Since I've come across this, I'll offer kind of workaround I'm using successfully for quiet a long time:

autocmd BufWritePre * let &backupext = substitute(expand('%:p:h'), '/', '%', 'g')